Download - Ik0902 Report Final Reduced
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8/10/2019 Ik0902 Report Final Reduced
1/85
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8/10/2019 Ik0902 Report Final Reduced
2/85
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CUHK, CSE | IK0902 Gaming on iPhone =
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-
8/10/2019 Ik0902 Report Final Reduced
3/85
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CUHK, CSE | IK0902 Gaming on iPhone 9
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34 5$,6%)7",8%$ 4444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444449GAG H4#.4)#$AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA IGAJ K%+)41+)%> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA L
:4 ;(6//+%.?)>0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA GP!"!"# $-747 *774- 9CC0'F94'7. """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #G!"!"! *; 4-; B-'.;2; H;&7("""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #G!"!"@ $9&4+ I9D;2 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" ##!"!"J I-724 H%.4;&"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" ##
JAQ D)>1' R#/)0> %7 M:S6TAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA GJ!"@"# KC;F'L'F94'7. 7L '$-7.; C-747M&9C-'F 9CC0'F94'7. N KO:$("""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #!
JAI B#+$##> +=# /)?)'1. -=%+% 1--')31+)%>/ 1>( %&. +1.0#+ 1--')31+)%>5 M:S6T AAAAAAAAAAAAAAAAAA GIJAL M@/+#? S.3=)+#3+&.# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA GLJAN K%(&'#/ (#/)0>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA GN
!"P"# 89F; Q;4;F4'7. R75%0; """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" """""" #P!"P"! =D9M; $&7F;22'.M R75%0;"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #P
JAU V/#. 9>+#.713# R#/)0> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA GUJAW 6.%2#3+ M3=#(&'# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA GWJAX M&??1.@ %7 D)./+ C#.? AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA GXJAGP )6=%># S--')31+)%> H4#.4)#$ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA JG
!"#G"# H9'& R9/;S>;& 1+ ,7%F- :CC2 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !J!"#G"! $-747 R9/;7>;& 1+ T;900%2'7. =.F""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !U!"#G"@ 'R9/;%C V.0'D'4;5 N O;>;& L7&M74 ;>;&+ D9/;%C 1&9.5 9.5 F707& +7% 7W.( 1+ Q92-,;F-.707M';2 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !P
@4 !AA'8"/,8%$ ;(/+%.?)>0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA JU
@"#"# ,-; H94 K-7C"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !6@"#"! X;0F7D; 47 K907. """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" """""" !6@"#"@ *; 4-; B-'.;2; H;&7("""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !?
QAJ D)>1' R#/)0>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA JX@"!"# K;CF'L'F94'7. 7L '$-7.; D9/;7>;& 9CC0'F94'7. N 89F;377/ """""""""""""""""""""""""""""""""""""""""""""""""""""""""" !E
QAQ B#+$##> +=# /)?)'1. -=%+% 1--')31+)%>/ 1>( %&. +1.0#+ 1--')31+)%>5 D13#Y%%* AAAAAAAAAAAAA QJQAI M@/+#? S.3=)+#3+&.# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA QQQAL K%(&'#/ (#/)0>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA QI
@"U"# Q;4;F4'7. R75%0; """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" @J@"U"! =D9M; $&7F;22'.M R75%0;"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" @J
QAN D13#Y%%* Z V/#. 9>+#.713# R#/)0>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA QL
QAU 6.%2#3+ M3=#(&'# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA QU
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8/10/2019 Ik0902 Report Final Reduced
4/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone L
94 5+A'(+($,/,8%$ =>/+#.713# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA IP
IAJ 61.+ J[ H-#>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA IQIAQ 61.+ Q[ 9?10# Y1@#.)>0 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA LPIAI 6.%B'#? ]>3%&>+#.#(AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA LG
D4 .(( R)/3&//)%> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA UPLAL _%B R)4)/)%> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA UQ
U"U"# Q'24&'1%4'7. 7L X7&/ """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 6@U"U"! $;&27.90 T;L0;F4'7. 7. 4-; 8'.90 Z;9& $&7[;F4 N K7.'9"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 6JU"U"@ $;&27.90 T;L0;F4'7. 7. 4-; 8'.90 Z;9& $&7[;F4 N \72;C-"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 6P
?4 2%$"'7+ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA UX
B4 G(1(6($"(< 444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444HI
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-
8/10/2019 Ik0902 Report Final Reduced
5/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
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CUHK, CSE | IK0902 Gaming on iPhone M
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+=# 7)./+ )6=%># .#'#1/#(5 S--'# aGUAWbc .#?1)>/ +=).( -'13#
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-
8/10/2019 Ik0902 Report Final Reduced
6/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
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CUHK, CSE | IK0902 Gaming on iPhone N
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%>A )61( )/ 1 '1.0#5 =)0=e.#/%'&+)%> Y]ReB13*')+ 96M ()/-'1@
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1>( ')0=+ #>%&0= +% +1*# 1>@$=#.#A 0 +% )6=%>#5
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-
8/10/2019 Ik0902 Report Final Reduced
7/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
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CUHK, CSE | IK0902 Gaming on iPhone O
:4;(6/
-
8/10/2019 Ik0902 Report Final Reduced
8/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
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CUHK, CSE | IK0902 Gaming on iPhone P
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9+ )/ 1 -=%+% /+)3*#. 1--')31+)%> +=1+ -.%4)(#/ &/#./ $)+=
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-
8/10/2019 Ik0902 Report Final Reduced
9/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
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CUHK, CSE | IK0902 Gaming on iPhone Q
:434:
=>%,%O7$8/ 0M !'(J(M 5F/$%F
9+ )/ 1> %>')># -=%+%e#()+)>0 +%%'A V/#./ 31> /#'#3+ +=#
#77#3+ +=#@ ')*# 7.%? %4#. GPP ()77#.#>+ #77#3+/5 +=#> -)3*
1 -)3+&.# 7.%? # $)+= )6=%>#d/
B&)'+e)> 31?#.1A C=# 1--')31+)%> $)'' +=#> &-'%1( +=#
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+=# -=%+%5 1(( +=# #77#3+ /#'#3+#( +% 3.#1+# 1 7&>>@ 713# -=%+% ?%>+10#/A
C=%&0= +=#.# 1.# %4#. GPP +=#?#/ +=1+ &/#. 31> 3=%%/# 7.%?5 )+ 1'/% .#F&).#/
&/#. +% $1)+ 7%. /%?# +)?# )> %.(#. +% '%1( +=# ()77#.#>+ #77#3+/ 7.%? +=# /#.4#.A
C=# 713# (#+#3+)%> )> +=)/ 1--')31+)%> )/ (%># B@ +=# /#.4#.5 /% )+ >##(/ +=# &/#
%7 9>+#.>#+ 7%. /#>()>0 1>( (%$>'%1()>0 +=# -=%+% +% 1>( 7.%? +=# /#.4#.5
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+=# -=%+%A 9> 1(()+)%>5 +=# 713# )(#>+)7)31+)%> +#3=>%'%0@ )> +=)/ 1--')31+)%> 31>
%>'@ (#+#3+ /)>0'# 713#A
-
8/10/2019 Ik0902 Report Final Reduced
10/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
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.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone ;
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6%'1.)`# 1''%$/ &/#./ +% 1(( 1 7&>*@ .#+.% '%%* %>+% +=#).
-=%+%/A V/#. 31> /#'#3+ -=%+% 7.%? +=# -=%+% 1'B&? %.
+1*# %># )??#()1+#'@A C=# 1--')31+)%> $)'' +=#> (% 1
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1+ +=# B%++%? %7 +=#). -=%+%/ $)+= 1 3&/+%? =1>( $.)++#> 7%>+A
V/#. 31> 1'/% 3=#3* %&+ +=# 6%'1.)`# D')3*.
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7%. 3%??#>+/5 7##(B13*/5 /&00#/+)%>/A
-
8/10/2019 Ik0902 Report Final Reduced
11/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
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CUHK, CSE | IK0902 Gaming on iPhone =:
*"*
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\)1 3%?-1.)/%> B#+$##> ()77#.#>+ -=%+% 1--')31+)%>/5 1'+%0#+=#. 7%&. (.17+ )(#1/ 31?#
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E%& 31> #)+=#. /#'#3+ @%&. =#.% B@ @%&./#'7 H^ +=# /@/+#? 31> 7)>( +=# =#.%
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+%%+=5 -.)>+ )+ 4)1 /%?# '%31' -=%+% -.)>+)>0 /+%.#
-
8/10/2019 Ik0902 Report Final Reduced
12/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone ==
:4:4@
=/6,M R/+( L /#3%>(/ '%>0A
K%/+ 01?#/ -.#/#>+ )>/+.&3+)%>/ )> +=# 7%.? %7 1 4#.B 1>( F&)3*'@ (.%- +=#
-'1@#. )>+% +=# /)+&1+)%> $=#.# +=#@ ?&/+ -#.7%.? /1)( 4#.BA
C=)/ 01?# 1''%$/ 0.#1+ 3.#1+)4)+@ B@ (#/)0> >&?#.%&/ ?)>) 01?#/A K1>@
&>)F )6=%># 7#1+&.#/ 31> B# &/#( )> +=# 01?# (#/)0>A
:4:49
R>%0 +=# /3.##>5 /=1*)>0 +=# -=%>#5
/')()>0 +=# #>#.0@ B1. j#+3A
9+ 31> &+)')`# +=# 7#1+&.#/ -.%4)(#(5 ')*# Q;M B&)'+e)> 31?#.15 133#'#.%?#+#.5
?&'+)e+%&3=j#+3A
C=#.# )/ >% /&3= 01?# +=1+ &/#/ +=# 31?#.1 +% -'1@ 01?# )> +=# S-- M+%.#
@#+A 9+ $%&'( B# 1 B.1>( >#$ )(#1 )> (#/)0>)>0 01?# )> )6=%>#A
-
8/10/2019 Ik0902 Report Final Reduced
13/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone =9
*"78(/.9 :&2(6/ ,; 0?
S?%>0 +=# )(#1/ +=1+ $# =14# B.1)>/+%.?#(5 +=#@ /=1.# /%?# 3%??%> 7#1+&.#/5 ')*#
&/)>0 +=# B&)'+e)> 4)(#% 31?#.1 1>( 713# (#+#3+)%>A H&. +1.0#+ )/ +% (#4#'%- 1>
1--')31+)%> +=1+ )/ %.)0)>1'5 ?#1>$=)'#5 #>+#.+1)>)>0A
:4@43
SA("818"/,8%$ %1 8=>%$( A>%,%*6/A>8" /AA'8"/,8%$ T SU!=K
5$,6%)7",8%$
C=# $#''e(#4#'%-#( )6=%>#5 &>(%&B+#('@5 )/ +=# &/#.e7.)#>(')#/+ ?%B)'# (#4)3#
#4#. #,)/+#(A C% ?1*# )6=%># +% B# 1 ?%.# 3%?-.#=#>/)4# (#4)3#5 1 >#$ )6=%>#
-=%+% 1--')31+)%>5 M:S6T5 )/ 0%)>0 +% B# )>+.%(&3#( 1 .#1'e+)?# 713# +.13*)>0
31?#.1 +% 1'' )6=%># &/#./A M:S6T )/ 1 -=%+% #()+)>0 +%%' +=1+ 31> 0)4# &/#. 1 7&>
#,-#.)#>3#A ")+= +=# 1&+% 713#e+.13*)>0 31?#.15 &/#. 31> #1/)'@ +1*# >)3# />1-
/=%+/ $)+= +=#). 7.)#>(/ 1+ 1>@$=#.# 1>@+)?#T O#/)(#/5 &/#. 31> 1'/% /#'#3+ +=#
-=%+% 7.%? +=# 1'B&? %. +1*# %># B@ &/)>0 +=# B&)'+e)> )6=%># 31?#.1A ")+= +=#
713# )(#>+)7)31+)%> +#3=>%'%0@5 &/#. 31> 1(( -=%+% #()+)>0 #77#3+ #1/)'@ 1>(
3.#1+# 7&>>@ 713# -=%+%?%>+10#/A
S-1.+ 7.%? +=# 1&+%?1+)3 713# (#+#3+)%> 7#1+&.#/5 +% +.)? &- @%&. -=%+%/5
M:S6T 1'/% 1''%$ &/#. +% (#3%.1+# +=#). -=%+% $)+= ()77#.#>+ 7.1?#/ %. /+1?-/A
S7+#. &/#. 7)>)/=)>0 +=# (#3%.1+)%>5 +=#@ 31> -&B')/= +=#). -=%+% +% 713#B%%* B@
&-'%1()>0 )+ %. /=1.# )+ +% +=#). 7.)#>(/ +=.%&0= #?1)'A
-
8/10/2019 Ik0902 Report Final Reduced
14/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone =L
V0W(",8F(
C% 1''%$ &/#. +% #>2%@ 1>( =14)>0 7&> $=#> +1*)>0 -=%+%/
C% 1''%$ &/#. +% 3.#1+# 7&>>@ -=%+% #()+ -=%+%/ 1>( 1(( /%?# #77#3+ %>
)+
C% 1''%$ &/#. +% /=1.# -=%+%/ %> D13#B%%* %. +=.%&0= #?1)'
./6*(, O(/,76(0 1>( 0 %7 +=# -=%+%
M+1+)3 713# (#+#3+)%> %> 6=%+%
S(41>3#( 7#1+&.#/
D13# (#+#3+)%> %> /+1+)3 -=%+% aM)>0'# D13#kK&'+) D13#/c
^#1'e+)?# 713# +.13*)>0 31?#.1
9?10# Y1@#.)>0 7%. 1(()>0 /+1?-/5 7.1?#/ 1>( +#,+ B%,#/
D)'+#.)>0
],-%.+ +% 713#B%%*
M#>( +=# -=%+% +=.%&0= #?1)'/
-
8/10/2019 Ik0902 Report Final Reduced
15/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone =M
*"@
A,1B.'(2,/ C&-)&&/ -D& 2(1(9.' BD,-, .BB9(E.-(,/2 ./4 ,F' -.'6&-
.BB9(E.-(,/G 0?
D#1+&.#/ k S--')31+)%>/ =768K =>%,%O7$8/ =%'/68P( SU!=K
S(()>0 D.1?# ! ! !
S(()>0 M+1?-/ ! !
S(()>0 C#,+ ! !
D13# R#+#3+)%> a%> /#.4#.c !
D13# R#+#3+)%> a%> )6=%>#c !
^#1' C)?# D13# C.13*)>0
-
8/10/2019 Ik0902 Report Final Reduced
16/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone =N
*"H
0I2-&1 ='ED(-&E-F'&
6=%+% )/ -1//#( 7.%? +=# -=%+% ')B.1.@ %. +=# 31?#.1 1/ +=# )?10# /%&.3#5 +=# )?10# )/
+=#> -1//#( +% +=# -.%0.1?A D)./+5 +=# )?10# $)'' &>(#.0% +=# 713# (#+#3+)%> -.%3#// +%
'%31+# +=# 713# %> +=# -=%+%A S7+#. +=1+5 +=# )?10# $)'' B# -1//#( +% +=# )?10#
-.%3#//%. +% #()+ +=# )?10# #77#3+ %> +=# -=%+%A C=# -.%3#//#( )?10# $)'' +=#> B#
-1//#( +% +=# /3.##> 7%. ()/-'1@A D&.+=#.?%.#5 )+ $)'' 1'/% B# -1//#( +% +=# -=%+% ')B.1.@
+% /14# +=# >#$ )?10#A C=# -.%3#//#( )?10# 31> 1'/% B# #,-%.+#( +% D13#B%%* 1>(
#?1)'A
-
8/10/2019 Ik0902 Report Final Reduced
17/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone =O
*"J
+,4F9&2 4&2(6/
:4?43
O/"( ;(,(",8%$ X%)7'(
9> +=)/ ?%(&'#5 +=# %B2#3+)4# 7%. +=)/ ?%(&'# )/ +% (#+#3+ 713# )> +=# -=%+%A 9+
$)'' 7)./+ (% /%?# -.#-.%3#//)>0 2%B/ ')*# .#/)`)>0 +=# -=%+% 1>( +&.>)>0 +=#
)?10# )>+% 0.#@e/31'#A C=#> )+ $)'' /+1.+ +=# 713# (#+#3+)%> -.%3#//5 $=)3= )/
'%31+)>0 +=# 713# %. 713#/ $)+=)> 1> )?10#A 9+ $)'' -1// +=# )?10# 1>( +=#
'%31+)%> %7 +=# 713#/ +% +=# )?10# -.%3#//)>0 ?%(&'# 7%. 7&.+=#. -.%3#//A
:4?4:
5+/*( =6%"(('#/ 1'' +=# )?10# -.%3#//)>0 $%.*5 )>3'&()>0 )?10# '1@#.)>0
1>( 7)'+#.)>0A 9?10# '1@#.)>0 31> 1''%$ +=# &/#. +% 1(( +=# /+1?-/5 7.1?#/ %>
+=# -=%+% B@ %4#.'1@ +=# /+1?-/ )?10# 1>( +=# -=%+%A 9+ )/ 1'/% .#/-%>/)B'# 7%.
+=# )?10# 7)'+#.)>0 7#1+&.#A 9+ )>3'&(#/ 3%'%&. 3%..#3+)%> /&3= 1/ B.)0=+>#// 1>(
3%>+.1/+ 1(2&/+?#>+/ %. 3%'%&. +.1>/'1+)%> +% 1 ()77#.#>+ 3%'%&. /-13#A
S7+#. #()+)>0 +=# -=%+%5 )+d/ .#/-%>/)B'# 7%. -1//)>0 +=# -.%3#//#( )?10# +% +=#
/3.##> 7%. ()/-'1@5 -=%+% ')B.1.@ 7%. /14)>0 +=# )?10#5 D13#B%%* 7%. -&B')/=)>0 )+
1>( #e?1)' /@/+#? +% /#>( )+ 4)1 #e?1)'A
-
8/10/2019 Ik0902 Report Final Reduced
18/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone =P
*"K
L2&' 3/-&';.E& :&2(6/
-
8/10/2019 Ik0902 Report Final Reduced
19/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone =Q
*"M
>',N&E- 0ED&4F9&
X%$,> Y((#.% ;%
"##* G e^#4)#$ %> +=# +%- )6=%># 1--')31+)%>/ 141)'1B'# %> )C&>#/
S-- M+%.#
eK1.*#+)>0 .#/#1.3= %> +=# )6=%># 1--')31+)%>/
"##* J e 9(#1/ O.1)>/+%.?)>0
"##* Q eR.17+ %7 +=# 1--')31+)%> R#/)0>
M#-+#?B#.
"##* I eR#')4#. +=# (#+1)'#( /-#3)7)31+)%> %7 +=# (#/)0>
e 9?-'#?#>+ +=# &/#.e)>+#.713#
"##* L e 9?-'#?#>+ /)?-'# )?10# #()+)>0 7#1+&.#
e;#+ 71?)')1. $)+= +=# +=#%.@ 1>( 1'0%.)+=? %7 713#
(#+#3+)%>
"##* N eM+&(@ H-#> 6 K13
e 9?-'#?#>+ 713# (#+#3+)%> 7#1+&.# %> /+1+)3 )?10#
"##* U e 9?-'#?#>+ 713# (#+#3+)%> 7#1+&.# %> /+1+)3 )?10#
H3+%B#.
"##* W e 9?-'#?#>+ 713# (#+#3+)%> 7#1+&.# %> /+1+)3 )?10#"##* X e C#/+)>0 %> )6=%># /)?&'1+%.
"##* GP e 9?-%.+ +=# -.%0.1? +% )6=%>#
eC#/+)>0 %> )6=%># aB%+= )6=%># Q;M 1>( Q;c
e 9?-'#?#>+ )?10# '1@#.)>0 7#1+&.#
"##* GG eR%3&?#>+1+)%>
e^#7)>#?#>+ 1>( S?#>(?#>+ %7 -.%0.1?
:%4#?B#.
"##* GJ eR%3&?#>+1+)%>
e 93%> (#/)0>
R#3#?B#. "##* GQ e^#4)#$ %> +=# ?)( +#.? -.%0.#// %7 %&. -.%2#3+
e
M3=#(&'# +=# 7&.+=#. +1/*/ )> +=# >#,+ /#?#/+#.
-
8/10/2019 Ik0902 Report Final Reduced
20/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone =;
S(A,(+0(6 V",%0(6 U%F(+0(6 ;("(+0(6^#4)#$ 1>( K1.*#+ ^#/#1.3=
S--')31+)%> R#/)0>
V/#.e9>+#.713# R#/)0>
;(/ R#/)0>
V/#.e9>+#.713# 9?-'#?#>+1+)%>
M)?-'# -=%+% #()+)>0 7#1+&.#
)?-'#?#>+1+)%>D13# (#+#3+)%> 7#1+&.#
)?-'#?#>+1+)%>9?10# Y1@#.)>0 7#1+&.#
)?-'#?#>+1+)%>
5+A'(+($,/,8
%$ =>/0 )3%>
C#/+)>0 %> )6=%># /)?&'1+%.
C#/+)>0 %> )6=%># Q;M 1>( Q;
.(/#?#>+ 1>( S(2&/+?#>+
R%3&?#>+1+)%>G(A%6,
^#4)#$ %> -.%0.#//
-
8/10/2019 Ik0902 Report Final Reduced
21/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9:
*"O
0F11.'I ,; 8('2- P&'1
O@ +=# #>( %7 /#?#/+#. %>#5 $# ?1>10#( +% (#4#'%-#(
M:S6T 9+ )/ 1 -=%+% 1--')31+)%> +=1+ 1''%$/ &/#./ +% -)3*
-=%+% 1>( 1(( ()77#.#>+ /+@'# %7 =1+/ %>+% +=#). -=%+%/A
V/#. 31> 1'/% /14#( +=# #()+#( -=%+% )>+% +=# ')B.1.@ )>
+=# #>(A S'+=%&0= )+ )/ >%+ 1 3%?-'#+#( 4#./)%>5 )+ /+)''
=1( /%?# /)0>)7)31>+ 7#1+&.#A "# '#1.>#( 1 '%+ 7.%? +=#
)?-'#?#>+1+)%> -.%3#// 1>( )+ 13+&1''@ 0)4# &/ 1 $=%'#
-)3+&.# %7 +=# (#4#'%-?#>+ -.%3#// 7.%? (#/)0> +% )?-'#?#>+1+)%>5 7.%? +#/+)>0 +%
#>=1>3#?#>+ 1>( .#7)>#?#>+A
O(/,76(< 8+A'(+($,()
N%/) 8+/*( 16%+ ,>( '806/6M
5$Z/AA A>%,% ,/#8$* 0M "/+(6/
O/"( )(,(",8%$ [X7',8Z1/"(( 1/"( '%"/,8%$
!)) )811(6($, 8+/*(< [>/,\ %$,% ,>( A>%,%
S/F( 8+/*( ,% ,>( A>%,% '806/6M
-
8/10/2019 Ik0902 Report Final Reduced
22/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9=
-
8/10/2019 Ik0902 Report Final Reduced
23/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 99
-
8/10/2019 Ik0902 Report Final Reduced
24/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9L
*"!Q
(>D,/& =BB9(E.-(,/ $%&'%(&)
S/ ?#>+)%>#( )> +=# -.#4)%&/ -10#/5 $# 3%?-'#+#( 1 /)?-'# 1--')31+)%> +=1+ 31> (#+#3+
+=# 713# '%31+)%> 1>( 1(( ()77#.#>+ =1+/ 133%.()>0'@ )> +=# /#?#/+#. %>#A 9> +=)/
/#?#/+#.5 $# (#3)(#( +% /+#- &- %&. 1--')31+)%> +% >#,+ '#4#' B@ #>=1>3)>0 )+ +% 1
4).+&1' ?1*#%4#. 1--')31+)%>A
O#7%.# 1?#>()>0 +=# (#/)0> %7 %&. )6=%># 1--')31+)%>5 $# =1( ?##+)>0 $)+= %&.
/&-#.4)/%. 1>( $# 1'' 10.##( +=1+ )+ )/ 1 0%%( )(#1 +% #>=1>3# )+ +% 1 ?1*#%4#.
1--')31+)%>A C% =14# 1 $=%'# -)3+&.# %7 4).+&1' ?1*#%4#. 1--')31+)%> 1>( +=# &/#.
)>+#.713#5 $# /-#>+ /%?# +)?# +% '%%* )>+% +=.## ()77#.#>+ -%-&'1. 4).+&1' ?1*#%4#.
1--')31+)%>/ .#'#1/#( 7.%? +=# )C&>#/ S-- M+%.#A \)1 +=# 3%?-1.)/%> %7 +=# /+.#>0+=/
1>( $#1*>#//#/ B#+$##> ()77#.#>+ 1--')31+)%>/ 1>( +=# $1@/ +=#@ 1.# )?-'#?#>+#(5
$# ?1>10#( +% (#/)0> 1 B#++#. %># +=1+ 31> )>3'&(# +=# /+.#>0+= %7 +=#? 1>( /%'4#
+=#). $#1*>#//#/ 1+ +=# /1?# +)?#A
C=# .#4)#$#( ?1*#%4#. 1--')31+)%>/ 1.# h1). K1*#%4#.5 6=%+% K1*#%4#. 1>( )K1*#&-
V>')?)+#( Z :#4#. D%.0%+ #4#.@ ?1*#&- B.1>( 1>( 3%'%. @%& %$>T
-
8/10/2019 Ik0902 Report Final Reduced
25/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9M
:43I43
Q/86 X/#(VF(6 0M .%7"> !AA0&10#/ 1>( 1''%$/ &/#. +% 7)>( =)/k=#. B#/+
=1)./+@'#A D)./+5 &/#. 31> -)3* 1 -=%+% 7.%? ')B.1.@ %.
+1*# >#$ $)+= 31?#.15 +.@ %&+ 1 $)(# .1>0# %7
=1)./+@'#/ 7%. B%+= $%?#> 1>( ?#>5 1(2&/+ =)/k=#.
-=%+% +% /&)+ +=# =1)./+@'# 1>( 7)>( %&+ =)/k=#. 714%&.)+# =1)./+@'#A C=# 7)>1'
-.#4)#$ 31> B# /14#( 1>( /=1.#( $)+= =)/k=#. 7.)#>(/ +=.%&0= 713#B%%*A
C=%&0= +=#.# 1.# 1 '%+ %7 =1)./+@'#/ +% 3=%%/# 7.%?5 @#+5 +=# #77#3+ )/ >%+ 1/ 0%%(
1/ )+ ?#>+)%>#(A 9+ +1*#/ +)?# +% 3=1>0# +=# /+@'#/ 1>( )>(##( =1.( +% 1(2&/+ +=#
-=%+% +% 7)+ +=# =1)./+@'#A
-
8/10/2019 Ik0902 Report Final Reduced
26/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9N
:43I4: =>%,% X/#(%F(6 0M G(/''7
-
8/10/2019 Ik0902 Report Final Reduced
27/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9O
:43I4@ 8X/#(7A ]$'8+8,() T U(F(6 1%6*%, (F(6M +/#(7A 06/$) /$) "%'%6 M%7
%&$K 0M ;/ .(">$%'%*8(')?)+#( 1''%$/ &/#. +% /14# 1'' +=# ?1*#&-
%. 3%/?#+)3 B.1>( 1>( 3%'%. )>/)(# +=# )6=%>#A
9>/+#1( %7 /14)>0 2&/+ %># ')-/+)3* %. 2&/+ %># ?1/31.15
>%$ &/#. 31> =14# &>')?)+#( ')-/+)3*/ B.1>(5 3%'%.
1>( >%+#/A 9+ 1'/% 1''%$/ &/#. +% /=1.# =#. 714%&.)+#
?1*#&- %. 3%/?#+)3/ 4)1 #?1)'Ah%$#4#.5 +=)/ 1--')31+)%> =1/ %>'@ 4#.@ 7#$ 7#1+&.#/5 17+#. 1''5 )+ )/ %>'@ 1 >%+#e
+1*)>0 1--')31+)%> $)+= #?1)' 7#1+&.#A
-
8/10/2019 Ik0902 Report Final Reduced
28/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9P
@4!AA'8"/,8%$ ;(0)>0 7.%? '%>0 =1).
+% /=%.+ =1).5 /+.1)0=+ =1). +% 3&.'@ =1).A
C=)/ 31> =#'- &/#. +% =14# 1 -.#4)#$ %7 +=# (#/).#( =1)./+@'# +% /## )7 )+ /&)+/
@%&A
C=# #77#3+/ 1.# 3=%/#> B#7%.# +=# &/#. +1*#/ +=# -)3+&.#5 1>( +=# -.#4)#$ /=%$/
+=# #77#3+ 1'.#1(@ 1--')#( B#7%.# +=# &/#. /14#/ +=# -=%+% %. 4)(#%A
-
8/10/2019 Ik0902 Report Final Reduced
29/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9Q
@434@
L( ,>( 2>8$(5 &>')*#
6=%+%D&>)15 )+ (%#/>d+ >##( +=# &/# %7 )>+#.>#+A
E%& 31> #)+=#. /#'#3+ @%&. =#.% B@ @%&./#'7 H^ +=# /@/+#? 31> 7)>( +=# =#.% +=1+
'%%*/ +=# ?%/+ 71?)')1. $)+= @%&
E%& 31> &-'%1( @%&. -=%+% )> +=# D13#B%%*5 /#>( )+ +% @%&. 7.)#>( 4)1 B'
+%%+=5 -.)>+ )+ 4)1 /%?# '%31' -=%+% -.)>+)>0 /+%.#
-
8/10/2019 Ik0902 Report Final Reduced
30/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone 9;
7"*
8(/.9 :&2(6/
S?%>0 +=# )(#1/ +=1+ $# =14# B.1)>/+%.?#(5 $# 31> B&)'( 1(%-+ +=# )(#1 %7 B&)'()>0
+=# 1--')31+)%>5 fC=# h1+ M=%-gA S'' $# >##( +% (% )/ +% .#-'13# +=# %+=#. +=1> $%.*)>0
%> 1 #1/)#. 1--.%13=5 $# (#3)(#( +% -)3* &- +=)/ 0.#1+ %--%.+&>)+@ 1>( 3=1''#>0# +%
?1*# 1 ?1*#%4#. 1--')31+)%>A Y)*# '1/+ /#?#/+#.5 %&. +1.0#+ )/ /+)'' +% (#4#'%- 1>
1--')31+)%> +=1+ )/ %.)0)>1'5 ?#1>$=)'#5 #>+#.+1)>)>0A 9> +=)/ /#?#/+#.5 %&. 7)>1' (#/)0> )/
+% (#4#'%- 1 4).+&1' ?1*#%4#. 1--')31+)%> +=1+ >%+ %>'@ )>3'&(#/ &/#7&' 1>( =1>(@
7#1+&.#/5 B&+ 1'/% 0)4# &/#./ 1> 1$#/%?# 1>( 7&> #,-#.)#>3#A
@4:43
S(A"818"/,8%$ %1 8=>%$( +/#(%F(6 /AA'8"/,8%$ T O/"(N%%#
5$,6%)7",8%$
C=# $#''e(#4#'%-#( )6=%>#5 &>(%&B+#('@5 )/ +=# &/#.e7.)#>(')#/+ ?%B)'# (#4)3#
#4#. #,)/+#(A C% ?1*# )6=%># +% B# 1 ?%.# 3%?-.#=#>/)4# (#4)3#5 1 4).+&1'
?1*#%4#. 1--')31+)%>5 D13#Y%%*5 )/ 0%)>0 +% B# )>+.%(&3#( +% 1'' )6=%># &/#./A
D13#Y%%* )/ 1 -=%+% #()+)>0 +%%' +=1+ 31> 0)4# &/#. 1 +%+1' 7&> #,-#.)#>3#A ")+=
+=# 1&+% 713#e(#+#3+)%>5 #@#e(#+#3+)%> 1>( ?%&+=e(#+#3+)%> +#3=>%'%0@5 &/#.
31> #1/)'@ 1--'@ ()77#.#>+ *)>(/ %7 ?1*#&- %>+% +=#). 713# +% 3.#1+# 1 3%%' '%%*
1>( /14# +=# '%%* +% +=#). -=%+% ')B.1.@A D%. )>/+1>3#5 &/#. 31> 7)./+ -)3* 1 -=%+%
7.%? +=# ')B.1.@ %. +1*# %># B@ 31?#.1A V/#. 31> /)?-'@ +1- +=# ')-/+)3* B&++%>
1>( -)3* =#. 714%&.)+# ')-/+)3* 3%'%&. %> +=# 3%'%&. -1'#++#A C=# /@/+#? $)'' +=#>
1&+%?1+)31''@ (#+#3+ +=# ')- '%31+)%> %> +=# -=%+% 1>( &/#. 31> 7&.+=#. 1(2&/+
+=# /)`# 1>( -%/+)%> %7 +=# ')-/+)3* 1--')#( )7 >##(#(A V/#. 31> 1'/% /#'#3+ +=#
3%'%. %> +=# 3%'%. -1'#++# +% 3=1>0# +=# ')-/+)3* 3%'%. 1>( +=# -.#4)#$ $)'' B#
/=%$> )??#()1+#'@A C=# #@# /=1(%$ B&++%> 1>( B'&/= B&++%> $%.*/ /)?)'1.'@
')*# +=# ')-/+)3* B&++%>A C=# #@# /=1(%$ B&++%> 1>( +=# B'&/= B&++%> 31> (#+#3+
+=# #@# 1>( +=# 713# '%31+)%> .#/-#3+)4#'@A V/#. 31> /14#( 1'' +=# -.%(&3+ /14#(
+% 1 >%+# $)+= +=# 7)>)/=#( -=%+% )> +=# -=%+% ')B.1.@ )> +=# #>(A
-
8/10/2019 Ik0902 Report Final Reduced
31/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone L:
9+ )/ 1> #,3#''#>+ 1--')31+)%> 7%. 1'' +=# 0).'/ +=1+ $1>+ +% 7)>( %&+ =#. B#/+ -)3*
B#7%.# 0%)>0 +% +=# (.&0 /+%.# +% 0#+ =#. >#$ ')-/+)3*5 #@# /=1(%$ -1'#++# %.B'&/=A V>')*# %+=#. ?1*#&- 1--')31+)%>5 1'' +=# 3%'%&./ &/#( )> %&. 1--')31+)%>
1.# -)3*#( 7.%? +=# 71?%&/ 3%/?#+)3 B.1>(5 O%BB) O.%$>
13+&1''@ B&@ +=# -.%(&3+ 133%.()>0 +% +=# ')/+ /14#(T 9/>d+ )+ /% 3%>4#>)#>+l
D%. +=# B%@/5 )+ $%&'( B# 1 7&> 1--')31+)%> 7%. @%& +%%T E%& 31> +1*# 1 -)3+&.# %7
@%&. B&((@ 1>( +.@ +% -&+ ?1*#&- %>+% =)/ 713#T @%& )?10)># =%$ @%&.
7.)#>( '%%*/ ')*# 17+#. -&++)>0 %> +=# #@# /=1(%$l 9+ $%&'( B# 1> 1B/%'&+# 7&>
#,-#.)#>3#T
V0W(",8F(
C% 1''%$ &/#. +% #>2%@ 1>( =14# 7&>
C% 1''%$ &/#. +% +.@ ()77#.#>+ ?1*#&- %> B#7%.# B&@)>0 +=# 13+&1'
-.%(&3+/
C% 1''%$ &/#. +% /=1.# +=# -=%+% 1>( +=# &/#( -.%(&3+ )>7%.?1+)%>
+=.%&0= #?1)'
./6*(, ]
-
8/10/2019 Ik0902 Report Final Reduced
32/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone L=
./6*(, O(/,76(0 +=1+ 1''%$/ ?%4#?#>+ 1>( .#/)`# B@ +%&3=
R.1$ /=1-#/ %> +=# )?10# B@ &/)>0 3%>+.%' -%)>+/
O'#>()>0 +=# )?10#
-
8/10/2019 Ik0902 Report Final Reduced
33/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone L9
7"7
A,1B.'(2,/ C&-)&&/ -D& 2(1(9.' BD,-, .BB9(E.-(,/2 ./4 ,F' -.'6&-
.BB9(E.-(,/G 8.E&R,,S
D#1+&.#/ k S--')31+)%>/ Q/86
X/#(%F(6
=>%,%
X/#(%F(6
8X/#(7A
]$'8+8,()
O/"(N%%#
9>e1-- 6=%+% C1*)>0 ! ! !
Y%1( )?10# 7.%? ')B.1.@ ! ! !
M14# )?10# +% ')B.1.@ ! ! !
D13# R#+#3+)%> a%> )6=%>#c ! !
]@# R#+#3+)%> a%> )6=%>#c !
K%&+= R#+#3+)%> a%> )6=%>#c !
9?10# Y1@#.)>0 a1''%$ +%&3=
?%4#?#>+5 .#/)`)>0 )?10#c! !
O'#>()>0 +=# )?10# !
:%+#e+1*)>0 ! !
],-%.+ +% 713#B%%* !!
],-%.+ +% #?1)' ! ! !
-
8/10/2019 Ik0902 Report Final Reduced
34/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone LL
7"@
0I2-&1 ='ED(-&E-F'&
6=%+% )/ /#'#3+#( 7.%? +=# -=%+% ')B.1.@ %. +=# 31?#.1 1/ +=# )?10# /%&.3# 1>( +=#>
-1//#( +% +=# ?1)> -.%0.1?A R)77#.#>+ B&++%> 3')3* $)'' 0#>#.1+# ()77#.#>+ (#+#3+)%>
/)0>1' 7%. +=# (#+#3+)%> ?%(&'#/A D%. )>/+1>3#5 +=# ')-/+)3* B&++%> 3')3* $)'' 0#>#.1+# 1
')- (#+#3+)%> /)0>1' +% +=# (#+#3+)%> ?%(&'#A "=#> +=# (#+#3+)%> ?%(&'# .#3#)4#/ +=#
(#+#3+)%> /)0>1'5 +=# )?10# $)'' &>(#.0% +=# (#+#3+)%> -.%3#// +% '%31+# +=# -%/)+)%> 7%.
713#5 #@#/5 ')-A C=#>5 +=# )?10# 1>( +=# .#/-#3+)4# '%31+)%> )>7%.?1+)%> $)'' B# -1//#(
+% +=# )?10#e-.%3#//)>0 ?%(&'# +% #()+ +=# #77#3+ %> +=# -=%+%A C=# -.%3#//#( )?10#
$)'' +=#> B# -1//#( +% +=# /3.##> 7%. ()/-'1@A
D&.+=#.?%.#5 ()77#.#>+ 3%'%. B&++%> $)'' -1// +=# 3%'%. /)0>1' +% +=# )?10#e-.%3#//)>0
?%(&'# 7%. 3=1>0)>0 +=# 3%'%. %7 ')-/+)3*5 #@# /=1(%$ %. B'&/=A C=# 1?#>(#( )?10# $)''
B# -1//#( +% +=# /3.##> 7%. ()/-'1@ )??#()1+#'@A
C=# -.%3#//#( )?10# 31> B# -1//#( +% +=# -=%+% ')B.1.@ +% /14# 1/ 1 >#$ )?10# %.
#,-%.+#( +% #?1)' 1/ 1++13=?#>+A
-
8/10/2019 Ik0902 Report Final Reduced
35/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone LM
7"H
+,4F9&2 4&2(6/
@4D43
;(,(",8%$ X%)7'(
9> +=)/ ?%(&'#5 +=# %B2#3+)4# 7%. +=)/ ?%(&'# )/ +% (#+#3+ +=# '%31+)%> 7%. ')-5
#@#/5 1>( +=# 713# )> +=# -=%+%A 9+ $)'' 7)./+ (% /%?# -.#-.%3#//)>0 2%B/ ')*#
.#/)`)>0 +=# -=%+% 1>( +&.>)>0 +=# )?10# )>+% 0.#@e/31'#A C=#> )+ $)'' /+1.+ +=#
(#+#3+)%> -.%3#//5 $=)3= )/ '%31+)>0 +=# 713#5 ')- %. #@#/ $)+=)> 1> )?10#A 9+ $)''
-1// +=# )?10# 1>( +=# '%31+)%> %7 +=# 133%.()>0 713)1' 7#1+&.#/ +% +=# )?10#e
-.%3#//)>0 ?%(&'# 7%. 7&.+=#. -.%3#//A
@4D4:
5+/*( =6%"(('#/ 1'' +=# )?10# -.%3#//)>0 $%.*5 )>3'&()>0 )?10# '1@#.)>0
1>( +=# +%&3= =1>(')>0A S7+#. 0#++)>0 +=# '%31+)%> %7 +=# 713)1' 7#1+&.# 7.%? +=#
(#+#3+)%> ?%(&'# 1>( +=# 3%'%. )>7%.?1+)%> 7.%? &/#.5 +=)/ ?%(&'# $)'' %4#.'1@
1 /#?)e+.1>/-1.#>+ )?10# '1@#. %> +%- %7 +=# -=%+% +% 13+ ')*# +=# 1--')#(
3%/?#+)3/A C=# 3%'%. %7 +=# )?10# '1@#. $)'' 3=1>0# 133%.()>0 +% &/#. .#F&).#(A
C=# /)`# 1>( /=1-# $)'' B# 3=1>0# 133%.()>0 +% +=# 3%>+.%' -%)>+/A
S7+#. #()+)>0 +=# -=%+%5 )+ )/ .#/-%>/)B'# 7%. -1//)>0 +=# -.%3#//#( )?10# +% +=#
/3.##> 7%. ()/-'1@5 -=%+% ')B.1.@ 7%. /14)>0 +=# )?10#5 #?1)' /@/+#? 1/ 1> #?1)'
1++13=?#>+A
-
8/10/2019 Ik0902 Report Final Reduced
36/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone LN
7"J
8.E&R,,S T L2&' 3/-&';.E& :&2(6/
-
8/10/2019 Ik0902 Report Final Reduced
37/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone LO
:%+# \)#$ 9>+#.713#
-
8/10/2019 Ik0902 Report Final Reduced
38/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone LP
7"K
>',N&E- 0ED&4F9&
X%$,> Y((# !/+%.?)>0
_1>&1.@
"##* Q e R.17+ %7 +=# S--')31+)%> R#/)0>e R.17+ %7 +=# V/#. 9>+#.713#
"##* I e V-(1+# +=# >#$ -.%2#3+ /-#3)7)31+)%>e 9?-'#?#>+1+)%> +=# )?10# '1@#.)>0
"##* L e 9?-'#?#>+1+)%> +=# +%&3= ?%4#?#>+e ;#+ 71?)')1. $)+= +=# +=#%.@ 1>( 1'0%.)+=? %7 #@# (#+#3+)%>
1>( ?%&+= (#+#3+)%>"##* N e 9?-'#?#>+1+)%> +=# #@# (#+#3+)%> 7#1+&.#
e 9?-'#?#>+1+)%> +=# ?%&+= (#+#3+)%> 7#1+&.#
D#B.&1.@
"##* U e 9?-'#?#>+1+)%> +=# #@# (#+#3+)%> 7#1+&.#e 9?-'#?#>+1+)%> +=# ?%&+= (#+#3+)%> 7#1+&.#
"##* W e 9?-'#?#>+1+)%> +=# #@# (#+#3+)%> 7#1+&.#e 9?-'#?#>+1+)%> +=# ?%&+= (#+#3+)%> 7#1+&.#
"##* X e 9?-'#?#>+1+)%> +=# #@# (#+#3+)%> 7#1+&.#e 9?-'#?#>+1+)%> +=# ?%&+= (#+#3+)%> 7#1+&.#
"##* GP e C#/+)>0 %> )6=%># Q; 1>( Q;Me R#B&00)>0
"##* GG e C#/+)>0 %> )6=%># Q; 1>( Q;Me R#B&00)>0
e V/#. )>+#.713#
K1.3=
"##* GJ e R#B&00)>0e )>0 1'' 7#1+&.#/
e V/#. )>+#.713#
e O&/)>#// 6'1>"##* GQ e R%3&?#>+1+)%>
e ^#7)>#?#>+ 1>( S?#>(?#>+ %7 -.%0.1?
e
O&/)>#// 6'1>
S-.)'
"##* GI e R%3&?#>+1+)%>e ^#7)>#?#>+ 1>( S?#>(?#>+ %7 -.%0.1?
e O&/)>#// 6'1>
-
8/10/2019 Ik0902 Report Final Reduced
39/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone LQ
^/$7/6M O(06/6M X/6"> !A68'
^#4)#$ %> -.%0.#// %7 G/+ C#.?^#4)#$ %> ?1*#%4#. 1--')31+)%>/
V/#.e9>+#.713# R#/)0>
;(/ M-#3)7)31+)%>
V/#.e9>+#.713# 9?-'#?#>+1+)%>
# D#1+&.#
D13# (#+#3+)%> 7#1+&.# )?-'#?#>+1+)%>
9?10# Y1@#.)>0 7#1+&.# )?-'#?#>+1+)%>
5+A'(+($,/
,8%$ =>/0
C#/+)>0 %> )6=%># /)?&'1+%.C#/+)>0 %> )6=%># Q;M 1>( Q;
.(/#?#>+ 1>( S(2&/+?#>+
R%3&?#>+1+)%>G(A%6,
O&/)>#// 6'1>
-
8/10/2019 Ik0902 Report Final Reduced
40/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone L;
945+A'(+($,/,8%$ =>/3# $# =14# )?-'#?#>+#( M:S6T )> +=# '1/+ /#?#/+#.5 $# =14# 1'.#1(@ =1( /%?# )(#1
=%$ +% &/# +=# 9>+#.713# O&)'(#. 1>( m3%(#A "# 7%&>( +=# )>+#.713# B&)'(#. )/ /)?-'# 1>(
#1/@ +% &/#5 /% $# 3%>+)>( +% &/# 9>+#.713# O&)'(#. +% B&)'( D13#Y%%* )> +=)/ /#?#/+#.A
D13# (#+#3+)%> &/#( )> M:S6T )/ 1'/% &/#7&' 7%. +=# )?-'#?#>+1+)%> %7 D13#Y%%*A "#
+=#.#7%.# $)'' 1--'@ $=1+ $# =14# '#1.>#( )> /#?#/+#. %># +% B&)'( %&. 1--')31+)%>A
C=# -.%0.1??)>0 '1>0&10# &/#( $)'' B# HB2#3+)4# ( +=# (#4#'%-)>0 -'1+7%.? $)''
?%/+'@ B# m3%(# 1>( 9>+#.713# O&)'(#. %> +=# K13 HMA
9> +=# B#0)>>)>0 %7 +=# )?-'#?#>+1+)%> -=1/#5 $# ()4)(#( )+ )>+% +=.## ?1)> -1.+/[ &/#.
)>+#.713# 3.#1+)%>5 H-#> a)>3'&(# 713# (#+#3+)%>5 ?%&+= (#+#3+)%> 1>( #@#
(#+#3+)%>c 1>( )?10# '1@#.)>0A
-
8/10/2019 Ik0902 Report Final Reduced
41/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone M:
@"!
>.'- !U L2&' 3/-&';.E& A'&.-(,/
O@ .#7#..)>0 +=# #,-#.)#>3# )> /#?#/+#. %># $=)'# )?-'#?#>+)>0 M:S6T5 $# 7%&>( +=1+
9>+#.713# O&)'(#. )/ F&)+# 1 0%%( 3=%)3# 7%. 3.#1+)>0 +=# &/#. )>+#.713# )> 1 /)?-'# $1@
$=)3= >##( >%+ ?&3= 3%(# )?-'#?#>+1+)%> =14# +% B# (%>#A S'' +=# #'#?#>+/ )> +=#
9>+#.713# O&)'(#. 1.# /+1>(1.( $=)3= &/#./ 31> #1/)'@ 1(1-+ +%A ")+= +=# =#'- %7 +=#
)6=%># MR8 S695 V98)+5 ?%/+ %7 +=# &/#. )>+#.713# )/ 3.#1+#( B@ &/)>0 +=# 9>+#.713#
O&)'(#.A
f9>+#.713# O&)'(#.g )/ 1> 1--')31+)%> 7%. (#/)0>)>0 1>( +#/+)>0 &/#. )>+#.713#A "# 31>
&/# 9>+#.713# O&)'(#. +% 3.#1+# &/#. )>+#.713#/ +=1+ 7%''%$ +=# K13 HM m =&?1>
)>+#.713# 0&)(#')>#/ B@ (.100)>0 &/#. )>+#.713# #'#?#>+/ 7.%? 1 -1'#++# %7 -.#(#7)>#(
3%>+.%'/ 1>( (.%--)>0 +=#? )>+% +=# $)>(%$ %. 4)#$ +=#@ 1.# 3%>7)0&.)>0A
D)0&.# QAGAG O1/)3 4)#$ %7 9>+#.713# O&)'(#.
-
8/10/2019 Ik0902 Report Final Reduced
42/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone M=
fV98)+g -.%4)(#/ +=# 3'1//#/ >##(#( +% 3%>/+.&3+ 1>( ?1>10# 1> 1--')31+)%>d/ &/#.
)>+#.713# 7%. )6=%># 1>( )6%( +%&3=A 9+ -.%4)(#/ 1> 1--')31+)%> %B2#3+5 #4#>+ =1>(')>05(.1$)>0 ?%(#'5 $)>(%$/5 4)#$/5 1>( 3%>+.%'/ /-#3)7)31''@ (#/)0>#( 7%. 1 +%&3= /3.##>
&/#.e)>+#.713#A D)0&.# QAGAG )''&/+.1+#/ +=# 3'1//#/ )> +=)/ 7.1?#$%.*A
D)0&.# QAGAJ V98)+ 3'1// =)#.1.3=@
-
8/10/2019 Ik0902 Report Final Reduced
43/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone M9
")+= +=# =#'- %7 f9>+#.713# O&)'(#.g 1>( fV98)+g5 $# B&)'+ +=# &/#. )>+#.713# 1/ +=#
7%''%$)>0/[
-
8/10/2019 Ik0902 Report Final Reduced
44/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone ML
@"*
>.'- *U $B&/AV :&-&E-(,/
C% /+1.+ )?-'#?#>+)>0 +=# (#+#3+)%> 7#1+&.#/5 $# =14# +% 0#+ 71?)')1. $)+= +=#1'0%.)+=? 1>( +=# (#+#3+)%> +=#%.@ %7 +=# H-#> )>
7)0&.# QAJAGA
D)0&.# QAJAG C=# 1'0%.)+=? 7%. H-#>
-
8/10/2019 Ik0902 Report Final Reduced
45/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone MM
S+ +=# 4#.@ B#0)>>)>0 %7 (#+#3+)%> -=1/#5 $# >##( +% '%1( 1 -.#4)%&/'@ +.1)>#( 3'1//)7)#.
31/31(# 7%. +=# 7&+&.# &/# B@ +=# (#+#3+)%> -1.+A S>( $=#.# +=# (#+#3+)%> %7 ?%&+=1>( #@#/ 1.# $%.*)>0 /)?)'1.'@A
C=# 3'1//)7)#. 31/31(# )/ 1 h11. 3'1//)7)#.5 +=# \)%'1e_%>#/ (#+#3+%.5 $=)3= B&)'(/ 1
B%%/+#( .#2#3+)%> 31/31(#A C=# 3'1//)7)#. 31/31(# )/ -.#e+.1)>#( $)+= +=%&/1>(/ %7
%B2#3+ #,1?-'#/ 1>( +#>/ %7 +=%&/1>(/ %7 >%>e%B2#3+ #,1?-'#/ 1/ +.1)>)>0 (1+1 /#+A C=#
3'1//)7)#. &/#/ +=# +=.#/=%'( %7 +=# /&?/ 1>( ()77#.#>3#/ %7 .#3+1>0&'1. .#0)%>/ %7 (1+1
-.%(&3#( B@ 1>@ 7#1+&.# (#+#3+%.5 $=)3= ?1@ )>3'&(# +=# h11. 31/# %7 .#3+1>0'#/ %7
0.#@e/31'# )?10# 41'/A
")+= +=# \)%'1e_%>#/ .#2#3+)%> 31/31(#5 $=)3= B%%/+#( +=# 3'1//)7)#.5 +=# $#1*
3'1//)7)#./ +=1+ )+ B%%/+/ )> #13= >%(# 1.# (#3)/)%> +.##/ +=1+ %7+#> 1.# %>'@ %># '#4#'
(##- f(#3)/)%> /+&?-/gA S (#3)/)%> /+&?- 1''%$/ 2&/+ %># (#3)/)%> %7 +=# 7%''%$)>0
7%.?[ f9/ +=# 41' 4 %7 1 -1.+)3&'1. 7#1+&.# 7 1B%4# %. B#'%$ /%?# +=.#/=%'( +gi +=#>5 1
f@#/g )>()31+#/ 713# 1>( 1 f>%g )>()31+#/ >% 713#[
-
8/10/2019 Ik0902 Report Final Reduced
46/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone MN
C=# \)%'1e_%>#/ 3'1//)7)#. #?-'%@/ S(1O%%/+ 1+ #13= >%(# )> +=# 31/31(# +% '#1.> 1 =)0=
(#+#3+)%> .1+# 1+ +=# 3%/+ %7 '%$ .#2#3+)%> .1+# ?&'+)e/+&?- 3'1//)7)#. 1+ #13= >%(# %7+=# 31/31(#A C=)/ 1'0%.)+=? )>3%.-%.1+#/ /#4#.1' 7#1+&.#/A
9+ &/#/ h11.e')*# )>-&+ 7#1+&.#/[ 1 +=.#/=%'( 1--')#( +% /&?/ 1>( ()77#.#>3#/ %7
.#3+1>0&'1. )?10# .#0)%>/A
9+/ )>+#0.1' )?10# +#3=>)F #>1B'#/ .1-)( 3%?-&+1+)%> %7 +=# 41' %7
.#3+1>0&'1. .#0)%>/ %. /&3= .#0)%>/ .%+1+#( IL (#0.##/A C=)/ (1+1 /+.&3+&.# )/
&/#( +% 133#'#.1+# 3%?-&+1+)%> %7 +=# h11.e')*# )>-&+ 7#1+&.#A
9+ &/#/ /+1+)/+)31' B%%/+)>0 +% 3.#1+# B)>1.@ a713# e >%+ 713#c 3'1//)7)31+)%> >%(#/
3=1.13+#.)`#( B@ =)0= (#+#3+)%> 1>( $#1* .#2#3+)%>A
9+ %.01>)`#/ +=# $#1* 3'1//)7)#. >%(#/ %7 1 .#2#3+)%> 31/31(#A
C=# h11.e')*# 7#1+&.#/ &/#( B@ +=# 3'1//)7)#. 1.# /=%$> )> D)0&.# QAJAJA S+ 1'' /31'#/5
+=#/# 7#1+&.#/ 7%.? +=# f.1$ ?1+#.)1'g +=1+ $)'' B# &/#( B@ +=# B%%/+#( 3'1//)7)#./A
C=#@ 1.# .1-)('@ 3%?-&+#( 7.%? +=# )>+#0.1' )?10# .#-.#/#>+)>0 +=# %.)0)>1' 0.#@/31'#
)?10#A
D)0&.# QAJAJ h11.e')*# 7#1+&.#/ 7.%? +=# H-#> a+=# .#3+1>0&'1.
1>( .%+1+#( .#0)%>/ 1.# #1/)'@ 31'3&'1+#( 7.%? +=# )>+#0.1' )?10#c[ +=# ')0=+ .#0)%> )/
)>+#.-.#+#( 1/ f1(( +=1+ 1.#1g 1>( +=# (1.* .#0)%> 1/ f/&B+.13+ +=1+ 1.#1g
-
8/10/2019 Ik0902 Report Final Reduced
47/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone MO
S'/%5 #13= 3'1//)7)#. 0.%&- )/ B%%/+#( )>+% >%(#/ %7 1 .#2#3+)%> 31/31(# 1/ /=%$> )>
D)0&.# QAJAQA 9> +=# 7)0&.# #13= %7 +=# >%(#/ D)
=%'(/ +=# B%%/+#( 31/31(# %7 0.%&-/ %7(#3)/)%> /+&?-/ $=)3= +.1)>#( %> +=# h11.e')*# 7#1+&.#/ 7.%? 713#/ 1>( >%>e713#/
#,1?-'#/A K%.#%4#.5 +=# >%(#/d %.(#. )/ )> 1 1/3#>()>0 %.(#. )> +=# '#4#' %7 3%?-'#,)+@A
C=#.#7%.#5 +=# 3%?-&+1+)%>/ 1.# ?)>)?)`#( $)+= .#2#3+)>0 #1/@ .#0)%>/ %7 +=# )?10#A
D&.+=#.?%.#5 #13= >%(# )/ +&>#( +% =14# 1 4#.@ =)0= (#+#3+)%> .1+#A D%. #,1?-'#5 $=#>
+.1)>)>0 %> 713#/5 1'?%/+ XXAXb %7 +=# 713#/ 1.# 7%&>( $)+= 1B%&+ LPb %7 +=# >%>e713#/
1.# )>3%..#3+'@ f7%&>(g 1+ #13= >%(#A h%$#4#.5 +=)/ )/ 133#-+1B'# B#31&/# &/)>0 7%.
#,1?-'# JP >%(#/ $)'' -.%4)(# 1 713# (#+#3+)%> .1+# %7 PAXXXJP)/ 1--.%,)?1+#'@ XWb 1>(
+=# 71'/# -%/)+)4# .1+# %7 PALJP)/ 1--.%,)?1+#'@ PAPPPGb %>'@A
D)0&.# QAJAQ C=# .#2#3+)%> 31/31(# &/#( )> +=# \)%'1e_%>#/ 3'1//)7)#.A
-
8/10/2019 Ik0902 Report Final Reduced
48/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone MP
S7+#.$1.(/5 $)+= +=# -.#e+.1)>#( 3'1//)7)#. 31/31(#5 +=# 713# (#+#3+)%> -1.+ /+1.+A
IAJAGAG
4#.+)>0 +=# )?10# /%&.3# )>+% 0.#@e/31'# )?10#AS/ +=# 713# (#+#3+)%> -1.+ >##( +% 31'3&'1+# $)+= +=# )>+#0.1' )?10# $=)3= &/)>0
')0=+ .#0)%> 1>( (1.* .#0)%> 7%. 31'3&'1+)%>A C% /)?-')7@ +=# 31'3&'1+)%>5 )+ )/ B#++#. +%
&/# 1 0.#@e/31'# )?10# )>/+#1( %7 3%'%&. )?10#A
IAJAGAJ^#/)`)>0 +=# 0.#@ )?10#A
C=)/ 13+)%> 31> /-##( &- +=# 7&.+=#. 713# (#+#3+)%> /+#-/ $)+= 1 /?1''#. 1>( /)?-'#.
)?10#A
IAJAGAQ
]F&1')`)>0 =)/+%0.1?
S/ +=# )>+#0.1' )?10# 7#1+&.#/ 1.# B1/#( %> ()77#.#>3#/ %7 .#3+1>0'# .#0)%>/A C=#.#
)/ 1 >##( 7%. B1'1>3)>0 +=# B.)0=+>#// 41'/ 7%. -.#4#>+)>0 +=# ()77#.#>3#/ B#)>0
/*#$#( B@ %4#.1'' ')0=+)>0 %. #,-%/&.# %7 +=# )?10#/A
IAJAGAI/ 7%&>( %B2#3+ .#3+1>0'#/ 1/ 1 /#F>3# %B2#3+ )>0 >##( +% B# 3'#1.#(A
-
8/10/2019 Ik0902 Report Final Reduced
49/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone MQ
IAJAGALR#+#3+)>0 713#/
C=# 13+&1' 713# (#+#3+)%> -.%3#// $)'' B# +1*#> -'13#A D)./+5 +=# .#/)`#( 0.#@e/31'# )?10#5 +=# -.#e+.1)>#( 3'1//)7)#. 31/31(# 1>( +=#
?#?%.@ /+%.10# 7%. (#+#3+#( 713#/ $)'' B# )>-&+#( 7%. +=# 713# (#+#3+)%>
-1.+A
C=# /31'#n713+%. -1.1?#+#. (#+#.?)>#/ +=# /)`# %7 1 2&?- B#+$##> #13=
/31'#i +=# =)0=#. +=# 41' +=# 71/+#. +=# 3%?-&+1+)%> +)?# B&+ 1+ +=# 3%/+
%7 -%//)B'# ?)//#( (#+#3+)%>A
C=# ?)>n>#)0=B%./ -1.1?#+#. 3%>+.%'/ +=# -.#4#>+)%> %7 71'/# (#+#3+)%>A
C=)/ )/ ( +% +=# 13+&1' 713# '%31+)%> )> 1> )?10# $)'' >%.?1''@ 0#+ ?&'+)-'#
(#+#3+)%> $)+=)> +=# /1?# 1.#1 B#31&/# +=# /31'#/ 1>( /&..%&>()>0 -),#'/
%7+#> )>()31+# 1 713#i +=# =)0=#. +=# 41' +=# ?%.# (#+#3+)%>/ 1.# >##(#(
7%. +=# 7)>1' (#3)/)%> %7 1 713# )> 1 /)>0'# '%31+)%>A
C=# 7'10/ -1.1?#+#. =1/ 7%&. /#++)>0/[
o / $)+= >% ')>#/cA
o ( )> +=# )?10#A
o ( )> +=# )?10# )??#()1+#'@A
C=# ?)>n/)`# -1.1?#+#. $)'' (#+#.?)># +=# /?1''#/+ .#0)%> $=)3= +% B#
/#1.3= 7%. 1 713#A C=# '1.0#. +=# 41' +=# 71/+#. +=# 3%?-&+1+)%> @#+5 )+ 1'/%
'#1(/ +% +=# 3%/+ %7 ?)//)>0 /?1'' 713#/A
IAJAGANS7+#. +=# (#+#3+)>0 713#/5 1 /#F>3# %7 (#+#3+#( 713#/ $)'' B# %B+1)>#(
7.%? +=# 713# (#+#3+%.A ")+= +=# /#F>3# %7 (#+#3+#( 713#/5 +=# )?10# 31>
B# &/#( 7%. 7&.+=#. )?10# -.%3#//A
-
8/10/2019 Ik0902 Report Final Reduced
50/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone M;
C=#.# 1.# /%?# 1//&?-+)%>/ 7%. +=# H-#> )> %.(#. +% )>3.#1/# +=#
133&.13@A C% )(#>+)7@ +=# 713)1' 7#1+&.#/ )> 1> )?10#5 )+ )/ >#3#//1.@ +=1+ +=# 713# %>+=# -=%+% )/ 713)>0 +% +=# 7.%>+5 $#'' ')+5 >%+ B'&..#( 1>( >%+ 3%4#.#( B@ 1>@+=)>0A
61//-%.+ -=%+% )/ 1 0%%( #,1?-'# 7%. +=# (#+#3+)%>A 6.#7#.1B'@5 +=# -=%+%d/
B13*0.%&>( /=%&'( B# >#&+.1'A
O@ '#1.>)>0 +=# -1/+ #,-#.)#>3# 7.%? M:S6T5 $# 7%&>( +=1+5 (#+#3+)%> 7&>3+)%>
+1*#/ +=# '%>0#/+ -.%3#//)>0 +)?# %7 1'' +=# 13+)%>/ )> +=# 1--')31+)%>A S'+=%&0=
713# (#+#3+)%> =1/ 1 =)0= 133&.13@5 +=# 133&.13@ 7%. #@# (#+#3+)%> 1>( ?%&+=
(#+#3+)%> )/ >%+ 1/ =)0= 1/ 713# (#+#3+)%>A C=)/ )/ %&+ %7 %&. #,-#3+1+)%> +=1+ )+ +1*#/
1 '%+ %7 +)?# +% 1(2&/+ +=# +=.#/=%'(A C=# ?1)> 3%>3#.>/ 1B%&+ (#+#3+)%> 713)1'
7#1+&.#/ $%&'( B# +=# '%$ 133&.13@ )> #@# 1>( ?%&+= (#+#3+)%> 1>( '%>0
-.%3#//)>0 +)?# -.%B'#?A
-
8/10/2019 Ik0902 Report Final Reduced
51/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone N:
@"7
>.'- 7U 31.6& R.I&'(/6
S7+#. +=# -.%0.1? 7%&>( %&+ +=# -%/)+)%> %7 713)1' 7#1+&.#a/c5 +=# 7#1+&.# /#F>3# 31>
B# &/#( 7%. 7&.+=#. )?10# -.%3#//)>0A D%. )>/+1>3#/5 1(()>0 )?10#a/c %> +%- %7 +=#
(#+#3+#( 1.#15 3.%--)>0 %&+ +=# 713# 1>( -'13# %> 1 ()77#.#>+ )?10# ')*# 6=%+%D&>)1AAA
#+3A
D%. M:S6T5 %># /#?#/+#. #1.')#.5 1'' +=# %4#.'1@ )?10#/ a')*#5 =1+c +=1+ $)'' B# 1((#( +%
+=# )?10# 1.# ().#3+'@ (.1$> %>+% +=# -.#/#>3# )?10#A S7+#. +=# %4#.'1@ )?10# )/
(.1$>5 )+ 31>d+ B# ?%4#( 1.%&>( +=# 4)#$ %. (#'#+#( 7.%? +=# 4)#$A 9>(##(5 +=#.# )/>d+
1>@ )?10# 4)#$ +% /+%.# +=# %4#.'1@ )?10#A
S7+#. 1?#>(?#>+5 1'' +=# %4#.'1@ )?10#/ 1.# /+%.#( 1/ +=# /&B4)#$/ %7 +=# )?10#A 9>
/=%.+5 1'' +=# %4#.'1@ )?10#/ 1.# +=# 3=)'(.#> %7 +=# ?1)> )?10#5 $=#>#4#. +=# ?1)>
)?10# =1/ 1>@ 3=1>0#/5 +=# %4#.'1@ )?10#/ $)'' +=#> 7%''%$ +=# 3=1>0# 133%.()>0'@A
S'/%5 1'' +=# %4#.'1@ )?10#/ 1.# )>(#-#>(#>+ %7 #13= %+=#. )> /&3= 1 $1@ +=1+ 1>@
3=1>0# %7 %># %4#.'1@ )?10# $)'' >%+ 177#3+ +=# %+=#. %4#.'1@ )?10#A C=)/ -.%4)(#(
&/#./ +=# 7'#,)B)')+@ 7%. 1(2&/+)>0 +=# (#+#3+#( -%/)+)%> 1>( /)`# %7 +=# %4#.'1@ )?10#A
S+ +=# -.#/#>+ /+10#5 +=# (#+#3+)%> ?%(&'# =#'- +% 7)>( %&+ +=# -%/)+)%> %7 +=# 713)1'
7#1+&.#/ A O@ &/)>0 +=# )?10# %4#.'1@ ?#+=%(5 1> %4#.'1@ )?10# 31> B# 1((#( +% +=#
-=%+% 1+ +=# -%/)+)%> %7 +=# /-#3)7)3 713)1' 7#1+&.#/5 ?#1>$=)'#5 3=1>0)>0 +=# 3%'%. %7
+=# %4#.'1@ )?10# 133%.()>0 +% +=# 3%'%. 3=%/#> )> +=# 3%'%. -1'#++#A C=)/ 31> 1''%$
&/#. +% =14# 1 -.#4)#$ %7 =%$ /=# '%%*/ 17+#. 1--'@)>0 3#.+1)> 3%'%./ %>+% =#. 713# )> 1
7#$ /#3%>(/5 .1+=#. +=1> /-#>()>0 GL ?)>&+#/ +% 1--'@ +=# .#1' ?1*#&- %>+% =#. 713#A
-
8/10/2019 Ik0902 Report Final Reduced
52/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone N=
@"@
>',C9&1 W/E,F/-&'&4
R&.)>0 +=# )?-'#?#>+1+)%> -=1/#5 +=#.# $#.# /#4#.1' -.%B'#? #>3%&>+#.#(A
GcC=# )6=%># 6.%3#//)>0 6%$#.
C=# -.%3#//)>0 -%$#. )/ 1 3.)+)31' -.%B'#? #>3%&>+#.#( (&.)>0 +=# )?-'#?#>+1+)%>A
C=# -.%3#//)>0 -%$#. %7 +=# /)?&'1+%.5 +=# )6=%># Q; M 1>( +=# )6=%># Q; =14# 1
/)0>)7)31>+ ()77#.#>3#A
H-#.1+)>0 )> ()77#.#>+ (#4)3#/5 +=# /-##( %7 +=# (#+#3+)%> -.%3#// 41.)#/A C=#.#7%.#5
)+ )/ =1.( +% (#+#.?)># +=# (#+#3+)%> +=.#/=%'( +=1+ )/ /&)+1B'# 7%. B%+= )6=%># Q;
1>( Q; MA K%.#%4#.5 )+ 1'/% =)>(#./ +=# (#4#'%-?#>+ -.%3#// 1/ )+ .#F&).#/ &/ +%
B&)'( )> +=# .#1' (#4)3#/ 7%. 13+&1' -#.7%.?1>3#A
JcN%& /""76/"M 1%6 (M( /$) +%7,> )(,(",8%$
S/ +=# 133&.13@ 7%. #@# 1>( ?%&+= (#+#3+)%> )/ .#'1+)4#'@ '%$ 3%?-1.)>0 +% +=1+ %7
713# (#+#3+)%>A C=# -%/)+)%> %B+1)>#( 17+#. #@# %. ?%&+= (#+#3+)%> ?1@ >%+ B#
133&.1+#'@ /=%$> ( +% +=# (#+#3+)%> 71)'&.#A
C% /%'4# +=)/ -.%B'#?5 $# /-#>+ +)?# %> +&>)>0 +=# +=.#/=%'( %7 +=# #@# 1>( ?%&+=
(#+#3+)%>A E#+5 +=# .#/&'+ )/ >%+ /)0>)7)31>+A C=#.#7%.#5 $# (#3)(#( +% 1(( /%?#
3%>+.%' -%)>+/ 7%. 7)># +&>)>0 +=# %4#.'1@ )?10# )> %.(#. +% /&)+ +=# ?1)> -=%+%A
-
8/10/2019 Ik0902 Report Final Reduced
53/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone N9
Qc2%'%6 0'($)8$*
D%. +=# +)?# B#)>05 +=# 3%'%. B'#>()>0 7%. +=# %4#.'1@ )?10# +% +=# +1.0#+ )?10# )/2&/+ 1 /)?-'# 3%'%. 7)'')>0 $)+= +.1>/-1.#>+ #77#3+A ")+= +=# -.#/#>+ 3%'%. 7)'')>0
?%(#5 )+ )/ >%+ .#1''@ ?#.0# )>+% +=# +1.0#+ )?10#A C=)/ ?1*#/ +=# %4#.'1@ )?10#
')*# 1 3%'%. ?1/* .1+=#. +=1> 3%/?#+)3A
C% )?-.%4# +=# 3%'%. 1--')#(5 $# =14# +% 1--'@ /%?# 0.1-=)31' +#3=>)F +%
#>=1>3# +=# #77#3+A D%. #,1?-'#5 B'&..)>0 %> #(0#/ %7 +=# )?10# $)'' )>(&3# 1
0.1()#>+ #77#3+A
Ic.%% )7)#. 0'1// +% .#/%'4# +=)/ -.%B'#?A "=#>#4#. +=# &/#. )/ 0%)>0
+% 7)># +&># +=# %4#.'1@ )?10#5 1 ?10>)7)#. 0'1// $)'' -%- %&+ 1B%4# +=# /-#3)7)3
3%>+.%' -%)>+/A C=)/ =#'- &/#./ +% /## +=# -%.+)%> %7 +=# /3.##> +=1+ )/ B#)>0 3%4#.
B@ =)/ %$> 7)>0#. 1>( +=&/ 1''%$ #1/@ 1(2&/+?#>+ %7 +=# 3%>+.%' -%)>+/A
-
8/10/2019 Ik0902 Report Final Reduced
54/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone NL
D4.( %7 +=# 713# (#+#3+)%> 7#1+&.# 1>(
+=# -#.7%.?1>3# %> ()77#.#>+ (#4)3#/A C=.%&0= %&+ +=# +#/+)>05 $# 31> =14# B#++#.
&>(#./+1>()>0 1B%&+ +=# -.%0.1? 1>( =%$ $#'' )+ -#.7%.?/5 +=&/ (#+#3+ /%7+$1.# 71)'&.#/
/% +=1+ (#7#3+/ ?1@ B# &>3%4#.#( 1>( 3%..#3+#(A
6=1/# G +#/+)>0 )/ ?1)>'@ 7%3&/)>0 %> +=# ')?)+1+)%> %7 +=# 713)1' 7#1+&.# (#+#3+)%>A "# =14#
+#/+#( +=# ?1,)?&? .%+1+)%> 1>0'# %7 +=# 713#/5 B%+= =%.)`%>+1''@ 1>( 4#.+)31''@A C=#
?)>)?&? /)`# %7 713# 1>( +=# -=%+% )+ 31> (#+#3+A
6=.1/# J +#/+)>0 )/ &/#( +% +#/+ +=# -#.7%.?1>3#5 133&.13@ 1>( 3%>/)/+#>3@ %7 %&. -.%2#3+A
"# 31> (% .#7)>#?#>+ B1/#( %> =%$ $#'' )+ -#.7%.?/A
6=1/# Q +#/+)>0 )/ &/#( +% +#/+ +=# 133&.13@ 1>( +=# -#.7%.?1>3# %7 +=# #@# (#+#3+)%> 1>(
?%&+= (#+#3+)%>A
H"!:.-. :&2E'(B-(,/
C% =14# 1 B#++#. 3%>+.%' %7 3%>/)/+#>3@5 $# (#3)(#( +% &/# 1 /)>0'# 713# -=%+% +=1+ +=#
713# (#+#3+)%> +#/+ /&33##(5 +=#> (&-')31+# )+ +% 3.#1+# ?&'+)-'# 713#/ )> %># )?10#A "#
31> +=#.#7%.# 3%>+.%' +=# >&?B#. %7 713#/ )> +=# +#/+)>0 )?10# #1/)'@ 1>( #>/&.# +=1+
+=# 713# /=%&'( B# (#+#3+#( 1+ +=# /1?# +)?#A
-
8/10/2019 Ik0902 Report Final Reduced
55/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone NM
H"*
+&-D,4,9,6I
6=1/# G
C% +#/+ +=# ?1,)?&? =%.)`%>+1' .%+1+)%> 1>0'# %7 +=# 713# +=# -.%0.1? 31> (#+#3+5 $#
=14# &/# 1 7.%>+ 713)>0 -=%+% +=#> .%+1+# +=# -=%+% =%.)`%>+1''@ B@ L (#0.##/ -#. +)?#
+% -.%(&3# +=# +#/+)>0 -=%+%/ .#F&).#(A S7+#. +=1+5 +=# +#/+)>0 -=%+%/ 1.# )?-%.+#( +%
+=# /)?&'1+%. 1>( )6=%># +% +#/+ +=# ?1,)?&? .%+1+)%> 1>0'#A
C% +#/+ +=# ?1,)?&? 4#.+)31' .%+1+)%> 1>0'#5 +=# +#/+)>0 -=%+%/ 1.# 31-+&.#( 7.%? 1
4)(#%A M)>3# $# 7%&>( ()77)3&'+@ +% -#.7%.? +=# 4#.+)31' .%+1+)%> %7 +=# -=%+% B@ &/)>0
-=%+% #()+)>0 +%%' 1>( +=# #77#3+ )/ ()77#.#>+ B#+$##> .%+1+)>0 +=# -=%+% 1>( .%+1+)>0
+=# 713#5 $# (#3)(#( +% +1*# 1 4)(#% %7 1 -#./%> .%+1+)>0 =)/ =#1( 1>( +=#> 31-+&.# +=#
7.1?#/ +% B# +=# +#/+)>0 -=%+%/A C=# +#/+)>0 -=%+%/ 1.# )?-%.+#( +% +=# /)?&'1+%. 1>(
(#4)3# +% +#/+ +=# ?1,)?&? .%+1+)%> 1>0'#A M)?)'1.'@5 +% +#/+ +=# /?1''#/+ /)`# %7 713#/
31> B# &/#(i +=# -=%+% )/ 1(2&/+#( )>+% ()77#.#>+ /)`#/ 7%. +#/+)>0A
6=1/#J
e 6#.7%.?1>3#
6.%0.1? =1/ B##> )?-%.+#( +% +=# )6=%># /)?&'1+%.5 )6=%># Q; M 1>( )6=%># Q; +%
+#/+ +=# +)?# .#F&).#( 7%. #13= ?13=)>#A C=# '#// +)?# )+ >##(#(5 +=# B#++#.
-#.7%.?1>3# )+ =1/A
e S33&.13@
V>(#. +=# 3%>/+.1)>+ %7 +=# -.%0.1? 7%&>( )> +=# -=1/# G +#/+)>05 -=%+%/ %7
?&'+)-'# 713#/ 1.# &/#( +% +#/+ +=# 133&.13@ %7 +=# -.%0.1? +% 3=#3* $=#+=#. +=#
-.%0.1? 31> (#+#3+ 1'' +=# 713#/ +=1+ /=%&'( B# (#+#3+#(A
-
8/10/2019 Ik0902 Report Final Reduced
56/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone NN
e /)/+#>3@
]13= /#+ %7 +#/+)>0 -=%+%/ 1.# +#/+#( 7%. 1+ '#1/+ Q +)?#/ +% /## )7 +=# .#/&'+/ 1.# +=#/1?#A C=# .&>+)?# 7%. #13= (#4)3#/ )/ 1'/% +#/+#( +% /## )7 +=# -.%3#//)>0 +)?#
()77#./A
6=1/# Q
e S33&.13@
GL 7.%>+e713#( -=%+%/ %7 -#%-'# 7.%? ()77#.#>+ .13#/ 1.# &/#( 7%. +#/+)>0 +=#
133&.13@ %7 #@# (#+#3+)%> 1>( ?%&+= (#+#3+)%> /#-1.1+#'@A C=# #@# (#+#3+)%>
/&33##(/ )7 )+ 31> (#+#3+ +=# 3%..#3+ -%/)+)%>/ %7 +$% #@#/A C=# ?%&+= (#+#3+)%>
/&33##(/ )7 )+ 31> (#+#3+ +=# 3%..#3+ -%/)+)%> %7 +=# ?%&+=A
e 6#.7%.?1>3#
S -=%+% )/ -1//#( +% +=# )6=%># /)?&'1+%.5 )6=%># Q; M 1>( )6=%># Q; +% +#/+ 7%.
+=# -#.7%.?1>3#A C=# +)?# >##(#( 7%. #@# (#+#3+)%> 1>( ?%&+= (#+#3+)%> %> #13=
(#4)3# )/ .#3%.(#( /#-1.1+#'@A C% 3%?-1.# +=# .#/&'+5 $# 1'/% .#3%.( +=# +)?#
.#F&).#( 7%. (#+#3+)>0 +=# #@# 1>( +=# ?%&+= 1+ +=# /1?# +)?#A
-
8/10/2019 Ik0902 Report Final Reduced
57/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone NO
H"7
W%.9F.-(,/ ./4 X&2F9-2
D4@43
=>/( 1/"(
D.%? +=# 1B%4# +#/+)>05 )+ /=%$/ +=1+ +=# ?1,)?&? .%+1+)%> 1>0'# +% +=# '#7+
/)(# )/ 1B%&+ JL%A ^%+1+)>0 JN%%7 +=# 713# 31&/#/ 71)'&.# )> +=# +#/+)>0A
-
8/10/2019 Ik0902 Report Final Reduced
58/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone NP
M)?)'1.'@5 $# -#.7%.? +=# /1?# +#/+)>0 +% +=# .)0=+ /)(#A
C=# .#/&'+ 7%. +=# .)0=+ /)(# )/ /)?)'1. +% +=# %># %> +=# '#7+ /)(#i +=# ?1,)?&?
.%+1+)%> 1>0'# +% +=# .)0=+ )/ 1B%&+ JI%A
-
8/10/2019 Ik0902 Report Final Reduced
59/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone NQ
D4@4:
=>/
-
8/10/2019 Ik0902 Report Final Reduced
60/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone N;
^)0=+ %+1+)%>
D%. +=# '#7+ .%+1+)%>5 +=# ?1,)?&? .%+1+)%> 1>0'# )/ 1B%&+ NP %$=)'# +=# %># 7%.
.)0=+ .%+1+)%> )/ LP %
A M)>3# +=# +#/+)>0 -=%+%/ 1.# 31-+&.#( 7.%? 1 4)(#%5 +=#.#
?1@ B# )?-.#3)/)%> ( +% +=# )>3%>/)/+#>+ ?%4#?#>+ %7 +=# 713# )> +=# 4)(#%A
-
8/10/2019 Ik0902 Report Final Reduced
61/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone O:
D4@4@
=>/ $)'' /+)'' .#/)`# )+ +% 1
B)00#. /)`# B#7%.# -#.7%.?)>0 +=# 713# (#+#3+)%> %> +=# -=%+%A C=#.#7%.#5 $#
7%&>( +=1+ +=# -=%+% /)`# 177#3+/ %>'@ $=#> +=# 713# )> +=# .#/)`#( -=%+% )/ +%%
B'&..#( /% +=1+ +=# 713# 31>d+ B# )(#>+)7)#( 17+#. .#/)`)>0 +=# -=%+% B@ +=#
/@/+#?A 9> +=)/ +#/+)>05 +=# /?1''#/+ /)`# %7 -=%+% )/ 1B%&+ GL,JPA
-
8/10/2019 Ik0902 Report Final Reduced
62/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone O=
D4@49
S+/''(
-
8/10/2019 Ik0902 Report Final Reduced
63/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone O9
D4@4D
=>/
-
8/10/2019 Ik0902 Report Final Reduced
64/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone OL
D.%? +=# 1B%4# 0.1-=5 )+ /=%$/ +=# +)?# .#F&).#( 7%. (#+#3+)>0 ()77#.#>+
>&?B#. %7 713#/ 7%. ()77#.#>+ (#4)3#/A 0 $)+= )6=%># Q; M5 )6=%># Q;
>##(/ J +)?#/ +=# +)?# .#F&).#( 7%. )6=%># Q;M +% (#+#3+ 713#/A C=# +)?#
.#F&).#( )>3.#1/# /')0=+'@ $)+= +=# >&?B#. %7 713#/ (#+#3+#(A
-
8/10/2019 Ik0902 Report Final Reduced
65/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone OM
6=%+% $)+= /)?-'# B13*0.%&>(
6=%+% $)+= 3%?-')31+#( B13*0.%&>(
C=# +)?# .#F&).#( 7%. 713# (#+#3+)%> 41.)#/ $)+= ()77#.#>+ B13*0.%&>(/A
M)?-'# B13*0.%&>( >##(/ '#// +)?# 7%. +=# -.%0.1? +% '%31+# +=# 713# $=)'#
+=# 3%?-'#, %># >##(/ ?%.# +)?#A
-
8/10/2019 Ik0902 Report Final Reduced
66/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone ON
D4@4?
=>/
-
8/10/2019 Ik0902 Report Final Reduced
67/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone OO
D4@4H
=>/
-
8/10/2019 Ik0902 Report Final Reduced
68/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone OP
S/ /=%$> 7.%? 1B%4#5 +=# /@/+#? 31> (#+#3+ W -=%+%/ 3%..#3+'@ %&+ %7 GL
-=%+%/A C=# 133&.13@ %7 +=# #@# (#+#3+)%> )/ +=#.#7%.# LQbA
K%&+= R#+#3+)%>
-
8/10/2019 Ik0902 Report Final Reduced
69/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone OQ
C=# /@/+#? 31> (#+#3+ +=# ?%&+= '%31+)%> 7%. 1'' GL -=%+%/ 3%..#3+'@A C=#
133&.13@ )/ +=#.#7%.# GPPbA E#+5 +=# /@/+#? 1'/% (#+#3+ +=# '%31+)%> %7 #@# 1/
+=# ?%&+= '%31+)%> 7%. GG -=%+%/ 1?%>0 GL -=%+%/A
-
8/10/2019 Ik0902 Report Final Reduced
70/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone O;
D4@4C
=>/
-
8/10/2019 Ik0902 Report Final Reduced
71/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone P:
H"@
=/.9I2(2 ./4 :(2EF22(,/
9> -=1/# G +#/+)>05 $# 7%&>( +=# ?1,)?&? .%+1+)%> 1>0'# %7 +=# 713# +=# -.%0.1? 31>
B# (#+#3+#(5 B%+= =%.)`%>+1''@ 1>( 4#.+)31''@A 97 +=# +)'+)>0 1>0'# #,3##(/ +=# ')?)+1+)%>5
+=#.# )/ 1 =)0= -.%B1B)')+@ +=1+ +=# -.%0.1? 31>>%+ (#+#3+ +=# 713#A K%.#%4#.5 $# 1'/%
+#/+ +=# /?1''#/+ -=%+% /)`# )+ 31> B# &/#(A M)>3# +=# -.%0.1? $)'' .#/)`# +=# -=%+% +% 1
%-+)?1' /)`#5 +=# )?10# $)'' B# ()/+%.+#( )7 +=# )?10# /)`# )/ +%% /?1''A C=# -.%0.1? $)''
+=#> )(#>+)7@ +=# '%31+)%> %7 +=# 713# )> +=# -=%+%A 97 +=# 713# )/ ()/+%.+#( +%% ?&3=5 +=#
-.%0.1? 31>>%+ (#+#3+ )+A M)?)'1.'@5 )> 1 /+1>(1.( -=%+% $)+= +=# /)`# %7 QJP,IWP5 $#
=14# +#/+#( +=# /?1''#/+ /)`# %7 +=# 713# +=1+ 31> B# (#+#3+#(A S'' +=# ')?)+1+)%> 7%&>(
)> +=# +#/+)>0 )/ ')/+#( )> +=# +1B'# B#'%$A
/+.1)>+
K1,)?&? h%.)`%>+1' ^%+1+)%> S>0'# %7 D13# Y#7+[ JL%
^)0=+[ JI%
K1,)?&? \#.+)31' ^%+1+)%> S>0'# %7 D13# Y#7+[ NP%
^)0=+[ LP%
M?1''#/+ -=%+% /)`# GL , JP -),#'/
M?1''#/+ 713# /)`# )> 1 /+1>(1.( -=%+% LP , LP -),#'/
-
8/10/2019 Ik0902 Report Final Reduced
72/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone P=
6=1/# J +#/+)>0 )/ ?%.# 7%3&/ %> +=# -#.7%.?1>3# %7 %&. -.%0.1?A M)>3# +=# -.%3#//)>0
-%$#. )/ ()77#.#>+ 7%. ()77#.#>+ (#4)3#/5 )+ .#F&).#/ '%>0#. +)?# 7%. '%$#. -.%3#//)>0-%$#. ?13=)>#A )6=%># Q;M -#.7%.?/ ?&3= 71/+#. +=1> Q;5 @#+5 )+ /+)'' +1*#/ GAL /#3%>(
+% (#+#3+ 1 /)>0'# 713# -=%+%A M)>3# GAL /#3%>(/ /+)'' ?#1>/ 1 '%>0 -.%3#//)>0 +)?# )7 $#
$%&'( ')*# +% (#4#'%- 1 .#1' +)?# 713# +.13*)>0 31?#.1AC=#.#7%.#5 .#7)>#?#>+ )/
.#F&).#( 7%. 7&.+=#. (#4#'%-?#>+A
O#/)(#/ +=# ()77#.#>3# )> -.%3#//)>0 -%$#. %7 +=# (#4)3#/5 +=#.# 1.# /%?# 713+%./
177#3+)>0 +=# -#.7%.?1>3# %7 +=# 713# (#+#3+)>0 -.%3#//A C=#@ 1.# 1/ 7%''%$/[
GcC=# >&?B#. %7 713#/ )> +=# )?10#A 9+ >##(/ '%>0#. +)?# 7%. (#+#3+)%> ?%.# 713#/A
JcC=# B13*0.%&>( %7 +=# )?10# 177#3+/ +=# -#.7%.?1>3#A C=# ?%.# 3%?-')31+#( +=#
B13*0.%&>( )/5 +=# '%>0#. +)?# )+ >##(/ 7%. (#+#3+)>0 +=# 713#/A
D.%? +=# 133&.13@ +#/+5 $# +#/+#( )+ $)+= 1> )?10# %7 LP 713#/5 )+ /+)'' $%.*/ $#''
$)+=%&+ 1>@ 71)'&.#A 9> >%.?1' /)+&1+)%>5 +=#.# $)'' >%+ B# ?%.# +=1> LP 713#/ )> 1 />1-
/=%+A C=#.#7%.#5 $# 31> 1//&?# +=# -.%0.1? 31> 7&>3+)%> -.%-#.'@ 7%. %&. 7&.+=#.
(#4#'%-?#>+A
-
8/10/2019 Ik0902 Report Final Reduced
73/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone P9
6=1/# Q +#/+)>0 )/ &/#( +% +#/+ %> +=# 133&.13@ 1>( +=# -#.7%.?1>3# %7 +=# #@#
(#+#3+)%> 1>( ?%&+= (#+#3+)%>A O#7%.# +=# +#/+)>05 $# #,-#3+ +=# .1+# %7 133&.13@ $)''B# /)?)'1. +% 713# (#+#3+)%>5 $=)3= )/ =)0=A h%$#4#.5 +=# 133&.13@ +#/+ 7%. #@# (#+#3+)%>
)/ %>'@ LQb5 $=)3= )/ ?&3= '%$#. +=1> +=1+ %7 713# (#+#3+)%>A S'+=%&0= +=# /@/+#? 31>
7)>( 1'' +=# ?%&+= '%31+)%>/5 $# 7%&>( +=1+ +=# /@/+#? $)'' +.#1+ +=# #@# '%31+)%> 1/ +=#
?%&+= '%31+)%> 7%. %4#. UQb %7 -=%+%/A C=#.#7%.#5 )7 $# %>'@ 3%&>+ +=%/# +=1+ 31>
(#+#3+ %>'@ ?%&+= '%31+)%> 3%..#3+'@5 +=# 133&.13@ $)'' B# 2&/+ 1B%&+ JUb5 $=)3= )/ 4#.@
'%$A M)>3# +=# 133&.13@ 7%. B%+= #@# 1>( ?%&+= )/ >%+ 1/ 0%%( 1/ #,-#3+#(5 )+ %B4)%&/'@
>##(/ 1(2&/+?#>+ %7 +=# +=.#/=%'(A
C=# -#.7%.?1>3# +#/+ /=%$/ +=# +)?# >##(#( 7%. ()77#.#>+ (#4)3#/ +% -#.7%.? +=# #@#
(#+#3+)%> 1>( ?%&+= (#+#3+)%>A "# 7%&>( +=1+ +=# -.%3#//#( +)?# )/ 133#-+1B'# 7%.
)6=%># Q; M5 B&+ +=# +)?# (%&B'#( 7%. )6=%># Q;5 $=)3= )/ 1B%&+ NeU /#3%>(/A C=# +)?#
>##(#( +% -#.7%.? B%+= #@#e(#+#3+)%> 1>( ?%&+= (#+#3+)%> +%0#+=#. )/ B1/)31''@ +=#
/&? %7 +=# +)?# .#F&).#( 7%. (#+#3+)>0 #@# 1>( ?%&+= /#-1.1+#'@A C=#.#7%.#5 +=#.# )/
>% 1(41>+10# +% -#.7%.? +=# #@# 1>( ?%&+= (#+#3+)%> +%0#+=#. )> +=# 1--')31+)%>5
#/-#3)1''@ $=#> +=# )6=%># Q;M >##(/ GQ /#3%>(/ $=)3= )/ +%+1''@ )>+%'#.1B'#A
-
8/10/2019 Ik0902 Report Final Reduced
74/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone PL
H"H
Y,C :(%(2(,/
D4D43
;8
-
8/10/2019 Ik0902 Report Final Reduced
75/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone PM
D4D4:
=(61' E#1. 6.%2#3+ =1/ 1'$1@/ B##> 1 0.#1+ 3=1''#>0# +% ?#A M)>3# 9 1? >%+ 1 71/+
'#1.>#. )> -.%0.1??)>05 )+ )/ =1.( 7%. ?# +% '#1.> 1 >#$ -.%0.1??)>0 '1>0&10#
1'' B@ ?@/#'7 )> 1 4#.@ /=%.+ +)?#A Y&3*)'@5 +=#.# 1.# (#4#'%-#. 7%.&?/ )> +=#
)>+#.>#+ +=1+ +=# (#4#'%-#./ 7.%? 1'' %4#. +=# $%.'( /=1.#( 1 '%+ %7 &/#7&'
+&+%.)1'/5 )(#1/ 1>( -.#3)%&/ #,-#.)#>3# )> (#4#'%-)>0 )6=%># 1--')31+)%>/A
K%.#%4#.5 2%)>)>0 +=# ""R< '1/+ /&??#. )/ 1> 1$#/%?# #,-#.)#>3#A \)1 +=#
+1'*/ 1>( '1B /#//)%>/5 9 0%+ 1 '%+ %7 )>/-).1+)%>/ 7.%? +=# +1'#>+#( (#4#'%-#./A
K@ -1.+>#.5 _%/#-=5 =1/ 1'$1@/ B##> /&--%.+)4# 1>( =# #,-'1)>#( 1 '%+ $=#> 9
=14# (%&B+/ )> 3%()>0A "=)'# _%/#-= $1/ ?%.# 3%>3#>+.1+#( +% $%.* %> +=#
(#+#3+)%> ?%(&'#/ $=)3= )/ +=# ?12%. -1.+ %7 %&. 1--')31+)%>5 9 $1/ .#/-%>/)B'#
+% (#/)0>5 )?-'#?#>+ +=# /)(# -1.+/ ')*# +=# )>+#.713#5 #?1)' /@/+#? 1>( )?10#
%4#.'1@A 9 #>2%@#( $%.*)>0 $)+= _%/#-= 1/ $# 31> /=1.# +=# $%.* #4#>'@ 1>(
=#'- #13= %+=#. $=#>#4#. >##(#(A
S/ ?#>+)%>#( 1B%4#5 9 $1/ .#/-%>/)B'# 7%. (#/)0>)>0 +=# )>+#.713#A S+ +=#
B#0)>>)>05 9 ()(>d+ .#1')`# =%$ )?-%.+1>+ +=# &/#. )>+#.713# ?#1>/ +% 1>
1--')31+)%> &>+)' %&. -.%7#//%. 3%>/)/+#>+'@ #?-=1/)`#( +=# )?-%.+1>3# %7 1
&/#. )>+#.713#A _&/+ '%%* 1+ S--'#d/ -.%(&3+/5 0%%( )>+#.713# '#( S--'# +% 1
3%>/)/+#>+ /&33#//A V/#. )>+#.713# )/ $=1+ +=# &/#. ().#3+ )>+#.13+/ $)+=5 )+
/+.1)0=+'@ 177#3+/ =%$ +=# &/#. 7##'/ 1B%&+ @%&. 1--')31+)%>A 9 +.)#( =1.( +%
3.#1+# 1 /)?-'# &/#. )>+#.713# +=1+ )/ #1/@ +% &/# 1>( 31&/# 1/ '#// 3%>7&/)%> 1/
)+ 31>A 9 3=%/# +% B&)'( +=# )>+#.713# B@ &/)>0 +=# 9>+#.713# O&)'(#. 1/ )+ =1( 1''
+=# /+1>(1.( #'#?#>+/ %7 1> )>+#.713# ')*# +=# +%%'B1.5 .%&>( B&++%>5 )?10#
4)#$AAA#+3A 9+ )/ #1/@ +% /+1.+ $)+= 1>( )+ 0)4#/ +=# &/#. +=# /+1>(1.( '1@%&+ $=)3=
)/ #1/@ +% &/#A E#+5 1/ 1'' +=# +=)>0/ )> +=# 9>+#.713# O&)'(#. )/ /+1>(1.(5 )+ (%#/>d+
1''%$ ?&3= 41.)1+)%>A C=#.#7%.#5 )+ $%&'( B# B#++#. 7%. 01?# (#4#'%-#./ +%
3.#1+# +=# &/#. )>+#.713# B@ V98)+5 q&1.+` 1>( H-#>;Y ]M 1/ )+ 1''%$/ 1 ?%.#)>+#.#/+)>0 )>+#.713#A 9 1'/% =#'-#( +% ?1*# +=# )?10# %4#.'1@ 1>( #?1)' 7#1+&.#
-
8/10/2019 Ik0902 Report Final Reduced
76/85
!"#$%&'"(& *+ ,*'#-&"% ./0"(/" $(1 2(30(""%0(3
40($5 6"$% 7%*8"/& 9::; < 9:=: 9(1>"%' ?"#*%&
.-#"%@0A"1 BC 7%*+D EFGH E-* ,I0(J F%K0(
CUHK, CSE | IK0902 Gaming on iPhone PN
%7 +=# /@/+#?A 9+ )/ 1 7&> -.13+)3# +=1+ 9 =1( +% '#1.> 1'' +=# 3%(#/ 7.%? +=#
+&+%.)1'/ %>')># 1>( 0% +=.%&0= 1 '%+ %7 f+.@ 1>( #..%.g -.%3#// B#7%.# /&33##(A 97#'+ /% /1+)/7)#( $=#> 9 0%+ )+ (%>#A
9 1'/% +%%* -1.+ )> (%)>0 +=# +#/+)>0/ 1>( 1>1'@/)/A "# /#-1.1+#( +=# +#/+)>0 )>+%
7%&. -=1/#/A 6=1/# G +#/+)>0 )/ ?1)>'@ 7%3&/ %> +=# ')?)+1+)%> %7 +=# 713#
(#+#3+)%> 7#1+&.# 1>( 6=1/# J +#/+)>0 )/ &/#( +% +#/+ +=# -#.7%.?1>3# 133&.13@
1>( 3%>/)/+#>3@ %7 M:S6TA 6=1/# Q +#/+)>0 )/ &/#( +% +#/+ 1B%&+ +=# 133&.13@ 1>(
-#.7%.?1>3# %7 #@# 1>( ?%&+= (#+#3+)%>A C=# +#/+)>0 -.%3#// )/ 4#.@ )?-%.+1>+
+% +=# 1--')31+)%> (#4#'%-?#>+ 1/ )+ -.%4)(#/ /%')( (1+1 7%. 1>1'@`)>0 +=#
1--')31+)%> 1>( .#4#1'/ +=# 1.#1/ +=1+ >##( )?-.%4#?#>+ 1>( .#7)>#?#>+A
0 +% +=# 7)./+ /#?#/+#.5 $# ?1@ >%+ B# 1B'# +% )?-'#?#>+ +=# $=%'#
+=)>0 )> 1 4#.@ /=%.+ -#.)%( %7 +)?#A C=)/ )/ B#31&/# $# /-#>+ F&)+# 1 '%+ %7 +)?#
+% .#B&)'( +=# $=%'# /@/+#? 1>( /%'4# +=# '%$ 133&.13@ %7 #@# 1>(