Modern probabilistic models for human choices and rankings

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Abstract/Contents

Abstract
As datasets capturing human choices and rankings grow in richness and scale, particularly in online domains, there is an increasing need for more flexible models of ranking and choice. I introduce the Pairwise Choice Markov Chain (PCMC) model of discrete choice, which escapes traditional choice-theoretic axioms such as regularity and stochastic transitivity while remaining inferentially tractable. PCMC still satisfies the axiom of uniform expansion, a considerably weaker assumption than Luce's choice axiom, and PCMC retains the Multinomial Logit (MNL) as a special case. Using the notion of a choice representation to break a ranking into a sequence of choices, I develop a framework for turning models for discrete choice into models for ranking data, generalizing the idea used to build the seminal Plackett-Luce (PL) model from MNL. This framework allows us to leverage our progress in choice into novel models for ranking data and allows us to build flexible yet tractable models for complete and partial rankings from recent advances in choice models. I also discuss methods and subtleties of shrinkage estimation for choice data and demonstrate the efficacy of the models I propose in prediction tasks from a broad range of domains including transportation, competitions, voting, and sushi.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2019; ©2019
Publication date 2019; 2019
Issuance monographic
Language English

Creators/Contributors

Author Ragain, Stephen Wesley
Degree supervisor Ugander, Johan
Thesis advisor Ugander, Johan
Thesis advisor Goel, Ashish
Thesis advisor Johari, Ramesh, 1976-
Degree committee member Goel, Ashish
Degree committee member Johari, Ramesh, 1976-
Associated with Stanford University, Department of Management Science and Engineering.

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Stephen Ragain.
Note Submitted to the Department of Management Science and Engineering.
Thesis Thesis Ph.D. Stanford University 2019.
Location electronic resource

Access conditions

Copyright
© 2019 by Stephen Wesley Ragain
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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