Search Results for author: Farzad Farnoud

Found 5 papers, 2 papers with code

Variance-Aware Regret Bounds for Stochastic Contextual Dueling Bandits

no code implementations2 Oct 2023 Qiwei Di, Tao Jin, Yue Wu, Heyang Zhao, Farzad Farnoud, Quanquan Gu

Dueling bandits is a prominent framework for decision-making involving preferential feedback, a valuable feature that fits various applications involving human interaction, such as ranking, information retrieval, and recommendation systems.

Computational Efficiency Decision Making +2

Borda Regret Minimization for Generalized Linear Dueling Bandits

no code implementations15 Mar 2023 Yue Wu, Tao Jin, Hao Lou, Farzad Farnoud, Quanquan Gu

To attain this lower bound, we propose an explore-then-commit type algorithm for the stochastic setting, which has a nearly matching regret upper bound $\tilde{O}(d^{2/3} T^{2/3})$.

Recommendation Systems

Adaptive Sampling for Heterogeneous Rank Aggregation from Noisy Pairwise Comparisons

1 code implementation8 Oct 2021 Yue Wu, Tao Jin, Hao Lou, Pan Xu, Farzad Farnoud, Quanquan Gu

In heterogeneous rank aggregation problems, users often exhibit various accuracy levels when comparing pairs of items.

Rank Aggregation via Heterogeneous Thurstone Preference Models

1 code implementation3 Dec 2019 Tao Jin, Pan Xu, Quanquan Gu, Farzad Farnoud

By allowing different noise distributions, the proposed HTM model maintains the generality of Thurstone's original framework, and as such, also extends the Bradley-Terry-Luce (BTL) model for pairwise comparisons to heterogeneous populations of users.

The Capacity of String-Replication Systems

no code implementations19 Jan 2014 Farzad Farnoud, Moshe Schwartz, Jehoshua Bruck

It is known that the majority of the human genome consists of repeated sequences.

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