no code implementations • 19 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.
no code implementations • 7 Feb 2024 • Ekaterina Khramtsova, Shengyao Zhuang, Mahsa Baktashmotlagh, Guido Zuccon
Existing methodologies for ranking dense retrievers fall short in addressing these domain shift scenarios.
no code implementations • 18 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.
no code implementations • 9 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.