Search Results for author: Zhibing Zhao

Found 9 papers, 2 papers with code

Learning Mixtures of Random Utility Models with Features from Incomplete Preferences

no code implementations6 Jun 2020 Zhibing Zhao, Ao Liu, Lirong Xia

We extend mixtures of RUMs with features to models that generate incomplete preferences and characterize their identifiability.

Computational Efficiency

Dual Learning: Theoretical Study and an Algorithmic Extension

no code implementations17 May 2020 Zhibing Zhao, Yingce Xia, Tao Qin, Lirong Xia, Tie-Yan Liu

Dual learning has been successfully applied in many machine learning applications including machine translation, image-to-image transformation, etc.

Machine Translation Translation

Learning Mixtures of Plackett-Luce Models from Structured Partial Orders

1 code implementation NeurIPS 2019 Zhibing Zhao, Lirong Xia

We prove that when the dataset consists of combinations of ranked top-$l_1$ and $l_2$-way (or choice data over up to $l_2$ alternatives), mixture of $k$ Plackett-Luce models is not identifiable when $l_1+l_2\le 2k-1$ ($l_2$ is set to $1$ when there are no $l_2$-way orders).

2k Computational Efficiency

Dual Learning: Theoretical Study and Algorithmic Extensions

no code implementations ICLR 2019 Zhibing Zhao, Yingce Xia, Tao Qin, Tie-Yan Liu

Based on the theoretical discoveries, we extend dual learning by introducing more related mappings and propose highly symmetric frameworks, cycle dual learning and multipath dual learning, in both of which we can leverage the feedback signals from additional domains to improve the qualities of the mappings.

Machine Translation Translation

Composite Marginal Likelihood Methods for Random Utility Models

no code implementations ICML 2018 Zhibing Zhao, Lirong Xia

We propose a novel and flexible rank-breaking-then-composite-marginal-likelihood (RBCML) framework for learning random utility models (RUMs), which include the Plackett-Luce model.

Computational Efficiency

A Cost-Effective Framework for Preference Elicitation and Aggregation

1 code implementation14 May 2018 Zhibing Zhao, Haoming Li, Junming Wang, Jeffrey Kephart, Nicholas Mattei, Hui Su, Lirong Xia

We propose a cost-effective framework for preference elicitation and aggregation under the Plackett-Luce model with features.

Learning Mixtures of Plackett-Luce Models

no code implementations23 Mar 2016 Zhibing Zhao, Peter Piech, Lirong Xia

In this paper we address the identifiability and efficient learning problems of finite mixtures of Plackett-Luce models for rank data.

2k

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