Download - Validation Improvement Trend
Validation of the Proposed Improvement-trend
Technique
Presented by:Abhishek Srivastava
Department of Computing ScienceUniversity of Alberta
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Friday, December 11, 2009
Improvement-trend criterion
feedback
× × ×
× ×feedback
time
line fitted using the Ordinary Least Squares
technique
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Friday, December 11, 2009
Validation of our technique
Hotels in Los Angeles × × ×
× ×feedback
time
feedback
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Friday, December 11, 2009
Renaissance Hollywood HotelHyatt Regency, Century PlazaVagabond InnElan HotelHollywood City InnHollywood Orchid SuitesSofitel Los AngelesSheraton Universal HotelHoliday Inn Express...Hollywood...Angeleno Hotel
feedback
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Friday, December 11, 2009
Proposed techniqueRenaissance Hollywood HotelHyatt Regency, Century PlazaVagabond InnElan HotelHollywood City InnHollywood Orchid SuitesSofitel Los AngelesSheraton Universal HotelHoliday Inn Express...Hollywood...Angeleno Hotel
Randomly collectedsmall number of feedback
× × ×
× ×feedback
time
11.2
= 0.833
21.5
= 1.33
20.8
= 2.5
Affinity = Available · {Reliability}!
{Waiting-time}"
Affinityij = Couplingij ·Availablej ·{Reliabilityj}! · {Improvement-trendj}#
{Waiting-timej}"
Transition-rate =Completion-ratei ! Couplingij
Waiting-time =Length of queue
Completion-rate
Improvement-trend = {Slope of fitted line}!{Mean feedback value} 5
Friday, December 11, 2009
Rankings based on proposed technique
Renaissance Hollywood HotelHyatt Regency, Century PlazaVagabond InnElan HotelHollywood City InnHollywood Orchid SuitesSofitel Los AngelesSheraton Universal HotelHoliday Inn Express...Hollywood...Angeleno Hotel
1. Sofitel Los Angeles 1.5423 2. Elan Hotel 1.41193. Angeleno Hotel 1.3097 4. Holiday Inn Express...Hollywood... 1.25035. Hollywood City Inn 1.17076. Vagabond Inn 1.1053 7. Sheraton Universal Hotel 1.09318. Renaissance Hollywood Hotel 1.08719. Hollywood Orchid Suites 0.973910. Hyatt Regency, Century Plaza 0.8815
Ranked based oncalculated
Improvement-trend
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Friday, December 11, 2009
Calculation of ‘actual’ improvement
Renaissance Hollywood HotelHyatt Regency, Century PlazaVagabond InnElan HotelHollywood City InnHollywood Orchid SuitesSofitel Los AngelesSheraton Universal HotelHoliday Inn Express...Hollywood...Angeleno Hotel
Large amount of feedback
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Friday, December 11, 2009
Renaissance Hollywood HotelHyatt Regency, Century PlazaVagabond InnElan HotelHollywood City InnHollywood Orchid SuitesSofitel Los AngelesSheraton Universal HotelHoliday Inn Express...Hollywood...Angeleno Hotel
Large amount of feedback
For each hotel Monthly feedbackaverage
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Friday, December 11, 2009
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Renaissance Hollywood HotelHyatt Regency, Century PlazaVagabond InnElan HotelHollywood City InnHollywood Orchid SuitesSofitel Los AngelesSheraton Universal HotelHoliday Inn Express...Hollywood...Angeleno Hotel
Feedback average
October 2009Hotels ranked
based on feedback
Hotels rankedbased on feedback
Hotels rankedbased on feedback
Hotels rankedbased on feedback
Rankings based on proposed feedback
September 2009
December 2008
July 2008
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July - October 2009Ranking
March - June 2009Ranking
Oct. `08 - June `09Ranking
July - October 2008Ranking
For each hotel:
October 2009
September 2009
December 2008
July 2008
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August 2009
July 2009 Rank
Rank
Rank
RankAverage rank
Friday, December 11, 2009
‘Rank improvement’
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July - October 2009Ranking
March - June 2009Ranking
Oct. `08 - June `09Ranking
July - October 2008Ranking R1
R2
R3
R4
Rank improvement =(R1-R2)+ (R2-R3)+ (R3-R4)
For each hotel:
Friday, December 11, 2009
Rankings based on ‘Rank improvement’
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Renaissance Hollywood HotelHyatt Regency, Century PlazaVagabond InnElan HotelHollywood City InnHollywood Orchid SuitesSofitel Los AngelesSheraton Universal HotelHoliday Inn Express...Hollywood...Angeleno Hotel
Ranked based onRank improvement
Vagabond Inn +3Elan Hotel +2.5Sofitel Los Angeles +1.75Holiday Inn Express...Hollywood... +1.25Angeleno Hotel - 0.5Hollywood Orchid Suites - 0.75Hyatt Regency, Century Plaza - 0.75Hollywood City Inn - 1.25Sheraton Universal Hotel - 2Renaissance Hollywood Hotel - 3.25
Friday, December 11, 2009
Ranking comparison
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1. Sofitel Los Angeles 2. Elan Hotel 3. Angeleno Hotel 4. Holiday Inn Express...Hollywood... 5. Hollywood City Inn 6. Vagabond Inn 7. Sheraton Universal Hotel 8. Renaissance Hollywood Hotel 9. Hollywood Orchid Suites 10. Hyatt Regency, Century Plaza
1. Vagabond Inn 2. Elan Hotel 3. Sofitel Los Angeles 4. Holiday Inn Express...Hollywood... 5. Angeleno Hotel 6. Hollywood Orchid Suites 6. Hyatt Regency, Century Plaza 8. Hollywood City Inn 9. Sheraton Universal Hotel 10. Renaissance Hollywood Hotel
Proposed technique(small feedback number)
Based on ‘rank improvement’(large feedback number)
Average ‘Manhattan’ distance = 2.3
Friday, December 11, 2009
Thank you!
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Friday, December 11, 2009