acompara1ve’analysisof’personality8based’’ … › 2016 › 03 › ... · 2016-09-20 ·...
TRANSCRIPT
Melissa Onori, Alessandro Micarelli, Giuseppe Sansone,
Department of Engineering Ar0ficial Intelligence Laboratory
Roma Tre University Via della Vasca Navale, 79, 00146 Rome, Italy
A Compara1ve Analysis of Personality-‐Based Music Recommender Systems
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Can informa0on on the target user’s personality improve the accuracy of the music recommenda0on process?
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Research QuesCon
• Recommender Systems • Music Recommender Systems • Personality • User study • Conclusions and future works
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
This Talk
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Recommender Systems “In this age of informaCon overload, people use a variety of strategies to make choices about what to buy, how to spend their leisure Cme, and even whom to date. Recommender systems automate some of these strategies with the goal of providing affordable, p e r s o n a l , a n d h i g h -‐ q u a l i t y recommendaCons” [1]
Information Overload
[1] D. Jannach et al. (2011). Recommender systems. An Introduc0on. Cambridge University Press.
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• “Music recommender system are decision support tools that reduce informaCon overload by retrieving relevant music item on a user’s profile” [2]
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Music Recommender Systems
[2] O. Celma and P. Lamere. (2011) If you like radiohead, you might like this ar0cle. AI Magazine.
• “Music recommender system are decision support tools that reduce informaCon overload by retrieving relevant music item on a user’s profile” [2]
• “However, most of the available music recommenders suggest music without taking into consideraCon the user’s context, e.g., her personality, current locaCon, acCvity, or any other contextual condiCon that might influence the user’s percepCon or evaluaCon of music” [3]
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Music Recommender Systems
[2] O. Celma and P. Lamere. (2011) If you like radiohead, you might like this ar0cle. AI Magazine. [3] Adomavicius et al. (2011) Context-‐aware recommender systems. AI Magazine.
• “Personality refers to an individual’s characterisCc paXerns of thought, emoCon, and behavior, together with the psychological mechanisms – hidden or not – behind those paXerns” [4]
• Personality Traits
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Personality
OPENNESS
NEUROTICISM EXTRAVERSION
CONSCIENTIOUSNESS
AGREEABLENESS
BIG FIVE MODEL
[5]
[4] D. C. Funder. (2004). The Personality puzzle. W.W.Norton & Company. [5] P.T. Costa, R.R. McCrae (1976). A cluster analy0c approach. Journal of Gerontology.
Music Recommender Sytems (MRSs) based on 1. Rela0ons between explicit personality and music genres 2. Explicit personality and neighbors 3. Implicit personality and neighbors 4. Music preferences
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Music Recommender Systems
Personality Test: 44-‐item Big Five Inventory (BFI) test [6] example: I see Myself as Someone Who ... is TalkaCve [1 2 3 4 5]
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
1° MRS
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 E.g., User 33 :
Rule 1 : Ope ∈ (3.75, 3.875] ∧ Agr ∈ (3.465, 3.598] ⇒ Reggae
Rule 2 : Ope ∈ (3.75, 3.875] ∧ Con ∈ (3.35, 3.5] ∧ Agr ∈ (3.41, 3.575] ⇒ Country
[6] John, O. P., & Srivastava, S. (1999). The Big-‐Five trait taxonomy: History, measurement, and theore0cal perspec0ves. Handbook of personality: Theory and research. Guilford Press.
Associa0on rules [7]: Big Five factors <-‐-‐-‐> Music genres
[7] Iván Cantador, et al. Rela0ng Personality Types with User Preferences in Mul0ple Entertainment Domains. EMPIRE 2013.
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
2° MRS
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 E.g., User u :
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 User v1:
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 User v2:
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 User v3:
In Your Room - Depeche ModeFearless - VNV Nation
Free Roll - DAT Politics…Moonwatch - Mike Oldfield
Personality Test: 44-‐item Big Five Inventory (BFI) test
... ...
User u <-‐-‐-‐> Last.fm users
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
2° MRS
0 ! simp(u,v) !1
puk: value of the Big Five factor k of the user u
Personality extracted through the Apply Magic Sauce (AMS) API [8] from likes on Facebook
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
3° MRS
ID OPE NEU EXT CON AGR
33 3.12 2.40 2.56 2.97 4.19 E.g., User u :
[8] S0llwell D. et al. (2013) Private traits and aiributes are predictable from digital records of human behavior.
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 User v1:
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 User v2:
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 User v3:
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 User v4:
ID OPE NEU EXT CON AGR
33 3.78 1.80 2.60 3.44 3.50 User v5:
Animal - The CabReptileʼs Theme - Skrillex
Natural Anthem - - The Postal Service…
Rano Pano - Mogwy
…
……
……
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
4° MRS
LAST.FM RECOMMENDER
Songs chosen by the user Songs suggested
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Dataset
• Last.fm music listening data by myPersonality project [9]
• 1875 Last.fm users • Each user: personality test and listening history • User’s preference inferred from the playcount airibute (how many 0mes the user listened to that par0cular song)
[9] www.mypersonality.org
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
User Study
Female Male
27 38
0-‐18 19-‐24 25-‐29 30-‐35 36-‐45 46-‐55 56-‐65
2 25 26 2 5 4 1
None Student Employee Professional Housewife
6 35 21 2 1
Primary Secondary Bachelor Master PhD
6 29 18 10 2
Gender:
Age:
Occupa0on:
Educa0on:
Sample of 65 Users with an ac0ve Facebook account
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
User Study
• UI for presen0ng the user with the suggested playlists
• A preview of 30 seconds of each song in the playlist (through the SpoCfy APIs)
• Each user was required to test all MRSs and evaluate the returned playlist
• MRSs proposed in a random order • Users unaware of MRSs details
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
User Study
• “I found new songs by arCsts already known to me” (novelty)
• “I found songs by arCsts that I did not know and, as of now, will begin to listen to” (serendipity)
• “I found songs of different music genres” (diversity) • “I found the suggested playlist interesCng” (interest) • “I would use this MRS again in the future” (future use)
Each user asked to provide an assessment (in a Likert 5-‐point scale, with 1: strongly disagree, 5: strongly agree) on five statements:
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
User Study
MRS # Users Novelty Serendipity Diversity Interest Future Use
1 65 2.5 – 1.0 2.5 – 0.8 3.0 – 0.9 3.0 – 0.8 3.4 – 0.8
2 65 2.4 – 0.9 2.6 – 0.8 2.8 – 0.8 3.2 – 0.7 3.3 – 0.8
3 43 2.2 – 0.7 2.2 – 0.6 3.2 – 0.9 2.4 – 0.7 2.8 – 0.9
4 65 2.9 – 0.8 2.4 – 0.9 1.7 – 0.5 3.5 – 0.6 3.5 – 0.6
Results in terms of mean and standard devia0on of user ra0ngs:
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
User Study
MRS # Users Novelty Serendipity Diversity Interest Future Use
1 65 2.5 – 1.0 2.5 – 0.8 3.0 – 0.9 3.0 – 0.8 3.4 – 0.8
2 65 2.4 – 0.9 2.6 – 0.8 2.8 – 0.8 3.2 – 0.7 3.3 – 0.8
3 43 2.2 – 0.7 2.2 – 0.6 3.2 – 0.9 2.4 – 0.7 2.8 – 0.9
4 65 2.9 – 0.8 2.4 – 0.9 1.7 – 0.5 3.5 – 0.6 3.5 – 0.6
Results in terms of mean and standard devia0on of user ra0ngs:
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
User Study
MRS # Users Novelty Serendipity Diversity Interest Future Use
1 65 2.5 – 1.0 2.5 – 0.8 3.0 – 0.9 3.0 – 0.8 3.4 – 0.8
2 65 2.4 – 0.9 2.6 – 0.8 2.8 – 0.8 3.2 – 0.7 3.3 – 0.8
3 43 2.2 – 0.7 2.2 – 0.6 3.2 – 0.9 2.4 – 0.7 2.8 – 0.9
4 65 2.9 – 0.8 2.4 – 0.9 1.7 – 0.5 3.5 – 0.6 3.5 – 0.6
Results in terms of mean and standard devia0on of user ra0ngs:
• Very similar assessment for the first three MRSs
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
User Study
MRS # Users Novelty Serendipity Diversity Interest Future Use
1 65 2.5 – 1.0 2.5 – 0.8 3.0 – 0.9 3.0 – 0.8 3.4 – 0.8
2 65 2.4 – 0.9 2.6 – 0.8 2.8 – 0.8 3.2 – 0.7 3.3 – 0.8
3 43 2.2 – 0.7 2.2 – 0.6 3.2 – 0.9 2.4 – 0.7 2.8 – 0.9
4 65 2.9 – 0.8 2.4 – 0.9 1.7 – 0.5 3.5 – 0.6 3.5 – 0.6
Results in terms of mean and standard devia0on of user ra0ngs:
• Very similar assessment for the first three MRSs • Different results for the last MRS
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
User Study
MRSs are useful to find new songs
I like the UI
I don’t like the songs
Songs are interes0ng
I had new inspira0ons Playlists too
mono-‐genre
MRSs are original
and funny 70%
80% 20% 70%
50%
80%
10%
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Conclusions
• Implementa0on of different MRSs • Compara0ve analysis on a sample of user study • Personality-‐based MRSs with almost similar performance to that of Last.fm recommender
• Higher diversity of results for personality-‐based MRSs than Last.fm recommender
EMPIRE 2016 – Boston, MA, USA – September 16, 2016
Future Works
• Extension of the number of involved users and tested dataset
• Extension of number and type of MRSs to be compared with each other
• Extension of implicit techniques for personality extrac0on
• Layered evalua0on for user model / user interface
Melissa Onori, Alessandro Micarelli, Giuseppe Sansone,
Department of Engineering Ar0ficial Intelligence Laboratory
Roma Tre University Via della Vasca Navale, 79, 00146 Rome, Italy
A Compara1ve Analysis of Personality-‐Based Music Recommender Systems
EMPIRE 2016 – Boston, MA, USA – September 16, 2016