Search Results for author: Souvik Das

Found 15 papers, 4 papers with code

Proto-Gen: An end-to-end neural generator for persona and knowledge grounded response generation

no code implementations CCGPK (COLING) 2022 Sougata Saha, Souvik Das, Rohini Srihari

In this paper we detail the implementation of Proto-Gen, an end-to-end neural response generator capable of selecting appropriate persona and fact sentences from available options, and generating persona and fact grounded responses.

Fact Selection Response Generation

UB Health Miners@SMM4H’22: Exploring Pre-processing Techniques To Classify Tweets Using Transformer Based Pipelines.

no code implementations SMM4H (COLING) 2022 Roshan Khatri, Sougata Saha, Souvik Das, Rohini Srihari

Here we discuss our implementation of two tasks in the Social Media Mining for Health Applications (SMM4H) 2022 shared tasks – classification, detection, and normalization of Adverse Events (AE) mentioned in English tweets (Task 1) and classification of English tweets self-reporting exact age (Task 4).

Binary Classification Classification +4

Dialo-AP: A Dependency Parsing Based Argument Parser for Dialogues

1 code implementation COLING 2022 Sougata Saha, Souvik Das, Rohini K. Srihari

While neural approaches to argument mining (AM) have advanced considerably, most of the recent work has been limited to parsing monologues.

Argument Mining Dependency Parsing

Let’s Chat: Understanding User Expectations in Socialbot Interactions

no code implementations NAACL (HCINLP) 2022 Elizabeth Soper, Erin Pacquetet, Sougata Saha, Souvik Das, Rohini Srihari

This paper analyzes data from the 2021 Amazon Alexa Prize Socialbot Grand Challenge 4, in order to better understand the differences between human-computer interactions (HCI) in a socialbot setting and conventional human-to-human interactions.

EDU-AP: Elementary Discourse Unit based Argument Parser

1 code implementation SIGDIAL (ACL) 2022 Sougata Saha, Souvik Das, Rohini Srihari

Neural approaches to end-to-end argument mining (AM) are often formulated as dependency parsing (DP), which relies on token-level sequence labeling and intricate post-processing for extracting argumentative structures from text.

Argument Mining Dependency Parsing

Entropy Guided Extrapolative Decoding to Improve Factuality in Large Language Models

no code implementations14 Apr 2024 Souvik Das, Lifeng Jin, Linfeng Song, Haitao Mi, Baolin Peng, Dong Yu

Current state-of-the-art approaches refine decoding by contrasting early-exit distributions from a lower layer with the final layer to exploit information related to factuality within the model forward procedure.

Hallucination

Improving Dialog Safety using Socially Aware Contrastive Learning

no code implementations1 Feb 2024 Souvik Das, Rohini K. Srihari

To understand the extent of this problem, we study prosociality in both adversarial and casual dialog contexts and audit the response quality of general-purpose language models in terms of propensity to produce unsafe content.

Contrastive Learning

Diving Deep into Modes of Fact Hallucinations in Dialogue Systems

1 code implementation11 Jan 2023 Souvik Das, Sougata Saha, Rohini K. Srihari

Knowledge Graph(KG) grounded conversations often use large pre-trained models and usually suffer from fact hallucination.

Hallucination

Using Multi-Encoder Fusion Strategies to Improve Personalized Response Selection

no code implementations COLING 2022 Souvik Das, Sougata Saha, Rohini K. Srihari

Ablation studies on the Persona-Chat dataset show that incorporating emotion and entailment improves the accuracy of response selection.

Similarity Based Label Smoothing For Dialogue Generation

no code implementations23 Jul 2021 Sougata Saha, Souvik Das, Rohini Srihari

Generative neural conversational systems are generally trained with the objective of minimizing the entropy loss between the training "hard" targets and the predicted logits.

Dialogue Generation Word Similarity

A multi-agent evolutionary robotics framework to train spiking neural networks

no code implementations7 Dec 2020 Souvik Das, Anirudh Shankar, Vaneet Aggarwal

Rules of the framework select certain bots and their SNNs for reproduction and others for elimination based on their efficacy in capturing food in a competitive environment.

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