Search Results for author: Shuyi Wang

Found 5 papers, 2 papers with code

How to Forget Clients in Federated Online Learning to Rank?

1 code implementation24 Jan 2024 Shuyi Wang, Bing Liu, Guido Zuccon

In a FOLTR system, a ranker is learned by aggregating local updates to the global ranking model.

Learning-To-Rank

An Analysis of Untargeted Poisoning Attack and Defense Methods for Federated Online Learning to Rank Systems

no code implementations4 Jul 2023 Shuyi Wang, Guido Zuccon

For this, FOLTR trains learning to rank models in an online manner -- i. e. by exploiting users' interactions with the search systems (queries, clicks), rather than labels -- and federatively -- i. e. by not aggregating interaction data in a central server for training purposes, but by training instances of a model on each user device on their own private data, and then sharing the model updates, not the data, across a set of users that have formed the federation.

Federated Learning Learning-To-Rank +1

Is Non-IID Data a Threat in Federated Online Learning to Rank?

1 code implementation20 Apr 2022 Shuyi Wang, Guido Zuccon

A well-known factor that affects the performance of federated learning systems, and that poses serious challenges to these approaches, is that there may be some type of bias in the way data is distributed across clients.

Federated Learning Information Retrieval +2

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