activity
20172021
most citedCascade Model-based Propensity Estimation for Counterfactual Learning to Rank

35 citations · 124 across the 10 of their papers we have counts for

collaborators

11 papers

cs.IR2021★ 12 cited

Mixture-Based Correction for Position and Trust Bias in Counterfactual Learning to Rank

Ali Vardasbi, Maarten de Rijke, Ilya Markov

In counterfactual learning to rank (CLTR) user interactions are used as a source of supervision. Since user interactions come with bias, an important focus of research in this fiel…

cs.LG2021★ 12 cited

NUQSGD: Provably Communication-efficient Data-parallel SGD via Nonuniform Quantization

Ali Ramezani-Kebrya, Fartash Faghri, Ilya Markov +3

As the size and complexity of models and datasets grow, so does the need for communication-efficient variants of stochastic gradient descent that can be deployed to perform paralle…

cs.IR2020★ 35 cited

Cascade Model-based Propensity Estimation for Counterfactual Learning to Rank

Ali Vardasbi, Maarten de Rijke, Ilya Markov

Unbiased CLTR requires click propensities to compensate for the difference between user clicks and true relevance of search results via IPS. Current propensity estimation methods a…

cs.IR2020

Safe Exploration for Optimizing Contextual Bandits

Rolf Jagerman, Ilya Markov, Maarten de Rijke

Contextual bandit problems are a natural fit for many information retrieval tasks, such as learning to rank, text classification, recommendation, etc. However, existing learning me…

cs.LG2019★ 5 cited

NUQSGD: Provably Communication-efficient Data-parallel SGD via Nonuniform Quantization

Ali Ramezani-Kebrya, Fartash Faghri, Ilya Markov +3

As the size and complexity of models and datasets grow, so does the need for communication-efficient variants of stochastic gradient descent that can be deployed to perform paralle…

cs.IR2019★ 30 cited

ViTOR: Learning to Rank Webpages Based on Visual Features

Bram van den Akker, Ilya Markov, Maarten de Rijke

The visual appearance of a webpage carries valuable information about its quality and can be used to improve the performance of learning to rank (LTR). We introduce the Visual lear…