Search Results for author: Koustav Rudra

Found 11 papers, 6 papers with code

Efficient Neural Ranking using Forward Indexes

1 code implementation12 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.

Document Ranking Semantic Similarity +1

FaxPlainAC: A Fact-Checking Tool Based on EXPLAINable Models with HumAn Correction in the Loop

no code implementations12 Sep 2021 Zijian Zhang, Koustav Rudra, Avishek Anand

It is therefore important to conduct user studies to correct models' inference biases and improve the model in a life-long learning manner in the future according to the user feedback.

Explainable Models Fact Checking

Learnt Sparsity for Effective and Interpretable Document Ranking

1 code implementation23 Jun 2021 Jurek Leonhardt, Koustav Rudra, Avishek Anand

We also show that our sentence selection approach can be used to provide explanations for models that operate on only parts of the document, such as BERT.

Document Ranking

An In-depth Analysis of Passage-Level Label Transfer for Contextual Document Ranking

no code implementations30 Mar 2021 Koustav Rudra, Zeon Trevor Fernando, Avishek Anand

Recently introduced pre-trained contextualized autoregressive models like BERT have shown improvements in document retrieval tasks.

Document Ranking

Stance Detection in Web and Social Media: A Comparative Study

1 code implementation12 Jul 2020 Shalmoli Ghosh, Prajwal Singhania, Siddharth Singh, Koustav Rudra, Saptarshi Ghosh

Online forums and social media platforms are increasingly being used to discuss topics of varying polarities where different people take different stances.

Stance Detection

Functions of Code-Switching in Tweets: An Annotation Framework and Some Initial Experiments

no code implementations LREC 2016 Rafiya Begum, Kalika Bali, Monojit Choudhury, Koustav Rudra, Niloy Ganguly

Code-Switching (CS) between two languages is extremely common in communities with societal multilingualism where speakers switch between two or more languages when interacting with each other.

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