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 • 22 Apr 2023 • Dhiraj Murthy, Constantine Caramanis, Koustav Rudra
Individuals involved in gang-related activity use mainstream social media including Facebook and Twitter to express taunts and threats as well as grief and memorializing.
1 code implementation • 14 Feb 2023 • Niloy Ganguly, Dren Fazlija, Maryam Badar, Marco Fisichella, Sandipan Sikdar, Johanna Schrader, Jonas Wallat, Koustav Rudra, Manolis Koubarakis, Gourab K. Patro, Wadhah Zai El Amri, Wolfgang Nejdl
This review aims to provide the reader with an overview of causal methods that have been developed to improve the trustworthiness of AI models.
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 • 10 Dec 2021 • Rajdeep Mukherjee, Uppada Vishnu, Hari Chandana Peruri, Sourangshu Bhattacharya, Koustav Rudra, Pawan Goyal, Niloy Ganguly
Occurrences of catastrophes such as natural or man-made disasters trigger the spread of rumours over social media at a rapid pace.
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.
no code implementations • 12 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.
1 code implementation • 30 Jun 2021 • Paheli Bhattacharya, Soham Poddar, Koustav Rudra, Kripabandhu Ghosh, Saptarshi Ghosh
Automatic summarization of legal case documents is an important and practical challenge.
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 • 30 Mar 2021 • Koustav Rudra, Zeon Trevor Fernando, Avishek Anand
However, the documents are longer than the passages and such document ranking models suffer from the token limitation (512) of BERT.
1 code implementation • 11 Jan 2021 • Zijian Zhang, Koustav Rudra, Avishek Anand
A desirable property of learning systems is to be both effective and interpretable.
1 code implementation • 12 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.
no code implementations • 5 Oct 2016 • Koustav Rudra, Siddhartha Banerjee, Niloy Ganguly, Pawan Goyal, Muhammad Imran, Prasenjit Mitra
The use of microblogging platforms such as Twitter during crises has become widespread.
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.