no code implementations • 26 Nov 2023 • Abhijit Anand, Jurek Leonhardt, Jaspreet Singh, Koustav Rudra, Avishek Anand
We then adapt a family of contrastive losses for the document ranking task that can exploit the augmented data to learn an effective ranking model.
no code implementations • 2 Nov 2023 • Jurek Leonhardt, Henrik Müller, Koustav Rudra, Megha Khosla, Abhijit Anand, Avishek Anand
Dual-encoder-based dense retrieval models have become the standard in IR.
no code implementations • 9 Nov 2022 • Jurek Leonhardt, Marcel Jahnke, Avishek Anand
Dual-encoder-based neural retrieval models achieve appreciable performance and complement traditional lexical retrievers well due to their semantic matching capabilities, which makes them a common choice for hybrid IR systems.
no code implementations • 7 Jul 2022 • Abhijit Anand, Jurek Leonhardt, Koustav Rudra, Avishek Anand
This paper proposes a simple yet effective method to improve ranking performance on smaller datasets using supervised contrastive learning for the document ranking problem.
1 code implementation • 12 Oct 2021 • Jurek Leonhardt, Koustav Rudra, Megha Khosla, Abhijit Anand, Avishek Anand
In this paper, we propose the Fast-Forward index -- a simple vector forward index that facilitates ranking documents using interpolation of lexical and semantic scores -- as a replacement for contextual re-rankers and dense indexes based on nearest neighbor search.
1 code implementation • 23 Jun 2021 • Jurek Leonhardt, Koustav Rudra, Avishek Anand
We introduce the Select-and-Rank paradigm for document ranking, where we first output an explanation as a selected subset of sentences in a document.
1 code implementation • 14 Jun 2021 • Jurek Leonhardt, Fabian Beringer, Avishek Anand
Recently, pre-trained contextual models, such as BERT, have shown to perform well in language related tasks.
1 code implementation • 22 Apr 2020 • Jurek Leonhardt, Avishek Anand, Megha Khosla
The extraction of main content from web pages is an important task for numerous applications, ranging from usability aspects, like reader views for news articles in web browsers, to information retrieval or natural language processing.
no code implementations • 22 Oct 2018 • Megha Khosla, Jurek Leonhardt, Wolfgang Nejdl, Avishek Anand
We also unearth the limitations of evaluations on directed graphs in previous works and propose a clear strategy for evaluating link prediction and graph reconstruction in directed graphs.