Hi! I am a Senior AI Research Scientist at NielsenIQ. I completed my Ph.D. from the Dept. of CSE, IIT Kharagpur under the supervision of Prof. Pawan Goyal and Prof. Niloy Ganguly. I am also an ex-member of the Complex Networks Research Group (CNeRG).

I obtained my Masters from IIIT Delhi under the supervision of Prof. Sambuddho Chakravarty, and my Bachelors from Jadavpur University under the supervision of Prof. Samiran Chattopadhyay. Prior work experience includes Applied Scientist II Internship with the Central Machine Learning Team at Amazon Science, Summer Research Internship at IBM Research, and four years of full-time experience as a Technology Consultant with PwC India.

Research Interests

Large Language Models, Factuality, Instruction Tuning, Parameter-Efficient Fine-tuning, Extreme Classification, Information Extraction, Aspect-based Sentiment Analysis, Summarization.

News

• [May 2024] Successfully defended my Ph.D.
• [Mar 2024] Paper Alert - First Journal Paper accepted at ACM Transactions on the Web!
• [Mar 2024] Paper Alert - Long Paper accepted at NAACL 2024 Main Conference!
• [Feb 2024] Presented our EMNLP 2022 Long Paper, ECTSum (Invited Spotlight Talk), at ACM ARCS 2024 [Poster] [Slides]
• [Jan 2024] Joined NielsenIQ as a Senior AI Research Scientist!!
• [Dec 2023] Attended IndoML 2023 at IIT Bombay!
• [Dec 2023] Presented our works at EMNLP 2023! [CONTRASTE] [MILDSum]
• [Nov 2023] Paper Alert - Long Paper DIRECT acceptance (Accept. Rate: ~8%) at ICWSM 2024!
• [Nov 2023] Paper Alert - Industry Track Paper accepted at WSDM 2024!
• [Oct 2023] Paper Alert - Long Paper accepted at EMNLP 2023 Findings!
• [Oct 2023] Paper Alert - Short Paper accepted at EMNLP 2023 Main Conference!
• [Sep 2023] Reviewing for WSDM 2024
• [Sep 2023] Reviewing for AAAI 2024
• [Aug 2023] Reviewing for EMNLP 2023
• [Jul 2023] Selected as a PC Member for AAAI 2024!
• [Jun 2023] Selected as a PC Member for WSDM 2024!
• [Jun 2023] Selected as a PC Member for EMNLP 2023!
• [May 2023] Submitted my Ph.D. Thesis!!
• [Apr 2023] Joined Amazon Science Bangalore as an Applied Scientist II Intern!
• [Apr 2023] Delivered my Ph.D. Synopsis Seminar at IIT Kharagpur
• [Mar 2023] Delivered an Invited Talk on Going Beyond ROUGE: Investigating Evaluation Metrics For Domain-Specific Text Summarization at Uniphore!
• [Feb 2023] Delivered an Invited Talk on Trustworthy Summarization of Crisis-related Tweets (WSDM 2022 Long Paper) at IISER Bhopal!
• [Feb 2023] Presented our WSDM 2022 Long Paper (Invited Spotlight Talk) at ACM ARCS 2023 [Poster] [Slides]
• [Jan 2023] Selected to attend Research Week with Google 2023 in Bangalore!
• [Jan 2023] Delivered an Invited Talk on Trustworthy Summarization of Crisis-related Tweets (WSDM 2022 Long Paper) at CODS COMAD 2023 held at IIT Bombay!
• [Dec 2022] Delivered an Invited Talk on ECTSum (EMNLP 2022 Long Paper) at Goldman Sachs Data Science Meetup Group!
• [Dec 2022] Selected as a PC Member for ACL 2023!
• [Dec 2022] Attended IndoML 2022 at IIT Gandhinagar!
• [Nov 2022] Presented our work at EMNLP 2022! [Poster] [Slides] [Pre-recorded Video]
• [Nov 2022] Attended Amazon Research Days 2022 in Bangalore!
• [Nov 2022] Reviewing for EACL 2023
• [Oct 2022] Selected as a PC Member for EACL 2023!
• [Oct 2022] Reviewing for ACL Rolling Review - October 2022 Cycle
• [Oct 2022] Delivered an Invited Talk on Crowdsourcing in NLP at IIT Bombay
• [Oct 2022] Paper Alert - Long Paper accepted at EMNLP 2022 Main Conference!
• [Sep 2022] CNeRG Reading Group Talk: Learning With Limited Data (ACL 2022 Tutorial) [Slides]
• [Sep 2022] Paper Alert - Long Paper accepted at AACL 2022 Main Conference!
• [Sep 2022] Reviewing for AAAI 2023
• [Aug 2022] Selected as a PC Member for AAAI 2023!
• [Jul 2022] Reviewing for EMNLP 2022
• [Jun 2022] Selected as a PC Member for EMNLP 2022!
• [Apr 2022] Paper Alert - Paper accepted at SemEval 2022 (collocated with NAACL 2022)!
• [Apr 2022] Paper Alert - Long Paper accepted at SIGIR 2022 Resource Track!
• [Mar 2022] CNeRG Reading Group Talk: Learning with Different Amounts of Annotation: From Zero to Many Labels (Zhang et. al., EMNLP 2021) [Slides]
• [Feb 2022] Reviewing for SIGIR 2022
• [Feb 2022] Selected as a PC Member for SIGIR 2022!
• [Feb 2022] Presenting our work at WSDM 2022! [Poster] [Slides] [Pre-recorded Video]
• [Feb 2022] Presenting EMNLP'21 and WSDM'22 papers at The 16th Academic Research and Careers for Students Symposium, ARCS 2022!
• [Jan 2022] Reviewing for NAACL 2022
• [Dec 2021] Microsoft Research Travel Grant and ACM-India IARCS Travel Grant awarded for attending WSDM 2022!
• [Dec 2021] Reviewing for ACL 2022
• [Nov 2021] Going to present our work at EMNLP 2021! [Poster] [Slides] [Pre-recorded Video]
• [Oct 2021] Paper Alert - Long Paper accepted at WSDM 2022!
• [Sep 2021] CNeRG Reading Group Talk: SummEval: Re-evaluating Summarization Evaluation (Fabbri et. al., TACL 2021) [Slides]
• [Aug 2021] Paper on utilizing a Pointer Network based encoder-decoder architecture for solving Aspect Sentiment Triplet Extraction accepted at EMNLP 2021 Main Conference!
• [Aug 2021] Paper Alert - Long Paper accepted at EMNLP 2021 Main Conference!
• [Jul 2021] Reviewing for NeurIPS 2021
• [Jul 2021] Going to present our work at SIGIR 2021! [Poster] [Slides] [Pre-recorded Video] [Blog]
• [Jun 2021] Attended Harnessing Big Data for Precision Medicine and Healthcare, Leibniz AI Lab
• [Jun 2021] Attended Symposium on Artificial Intelligence and Law (SAIL 2021)
• [Apr 2021] Paper on utilizing the better representational power of Dimensional Models for Categorical Analysis of Emotions from tweets accepted at SIGIR 2021!
• [Apr 2021] Paper Alert - Short Paper accepted at SIGIR 2021!!
• [Mar 2021] Going to present our work at ECIR 2021! [Slides] [Pre-recorded Video]
• [Mar 2021] Reviewing for ACM Transactions on the Web (TWEB 2020)
• [Mar 2021] Reviewing for International Journal of Disaster Risk Reduction (IJDRR 2021)
• [Feb 2021] Reviewing for SIGIR 2021
• [Jan 2021] CNeRG Reading Group Talk: DualTKB: A Dual Learning Bridge between Text and Knowledge Base (Dognin et. al., EMNLP 2020) [Slides]
• [Dec 2020] Ph.D. Registration Seminar [Slides]
• [Dec 2020] Invited to attend Amazon Research Days 2020!
• [Dec 2020] Reviewing for IEEE Transactions on Computational Social Systems (TCSS 2020)
• [Dec 2020] Attended Indian Symposium on Machine Learning (IndoML 2020)
• [Dec 2020] Paper on assessing the Production Readiness of State-of-the-art Aspect-based Sentiment Analysis models accepted at ECIR 2021!
• [Dec 2020] Paper Alert - Long Paper accepted at ECIR 2021!
• [Nov 2020] Reviewing for SIAM International Conference on Data Mining (SDM 2021)
• [Jul 2020] Going to present our work at SIGIR 2020! [Slides] [Video] My first conference presentation!
• [May 2020] Conference Practice Talk: Read what you need: Controllable Aspect-based Opinion Summarization of Tourist Reviews (SIGIR 2020) [Slides]
• [Apr 2020] Paper on Controllable Opinion Summarization accepted at SIGIR 2020!
• [Apr 2020] Paper Alert - Short Paper accepted at SIGIR 2020!
• [Feb 2020] Reviewing for SIGIR 2020
• [Sep 2019] Invited to attend Amazon Research Days 2019!
• [May 2019] CNeRG Reading Group Talk: Linguistically-Informed Self-Attention for Semantic Role Labeling (Strubel et. al., EMNLP 2018) [Slides]
• [Dec 2018] Presented my IBM Summer Internship work on Bird Audio Detection using Deep Neural Networks at CNeRG Retreat 2018 [Slides]
• [Oct 2018] CNeRG Reading Group Talk: Encoding Sentences with Graph Convolutional Networks for Semantic Role Labeling (Diego Marcheggiani and Ivan Titov, EMNLP 2017) [Slides]
• [May 2018] Started Summer Internship at IBM Research India Labs