Search Results for author: Ekaterina Khramtsova

Found 4 papers, 0 papers with code

FeB4RAG: Evaluating Federated Search in the Context of Retrieval Augmented Generation

no code implementations19 Feb 2024 Shuai Wang, Ekaterina Khramtsova, Shengyao Zhuang, Guido Zuccon

Federated search systems aggregate results from multiple search engines, selecting appropriate sources to enhance result quality and align with user intent.

Benchmarking Chatbot +3

Leveraging LLMs for Unsupervised Dense Retriever Ranking

no code implementations7 Feb 2024 Ekaterina Khramtsova, Shengyao Zhuang, Mahsa Baktashmotlagh, Guido Zuccon

Existing methodologies for ranking dense retrievers fall short in addressing these domain shift scenarios.

Selecting which Dense Retriever to use for Zero-Shot Search

no code implementations18 Sep 2023 Ekaterina Khramtsova, Shengyao Zhuang, Mahsa Baktashmotlagh, Xi Wang, Guido Zuccon

We propose the new problem of choosing which dense retrieval model to use when searching on a new collection for which no labels are available, i. e. in a zero-shot setting.

Information Retrieval Retrieval

Rethinking Persistent Homology for Visual Recognition

no code implementations9 Jul 2022 Ekaterina Khramtsova, Guido Zuccon, Xi Wang, Mahsa Baktashmotlagh

This paper performs a detailed analysis of the effectiveness of topological properties for image classification in various training scenarios, defined by: the number of training samples, the complexity of the training data and the complexity of the backbone network.

Image Classification

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