Search Results for author: Akshay Chaturvedi

Found 8 papers, 5 papers with code

Limits for Learning with Language Models

no code implementations21 Jun 2023 Nicholas Asher, Swarnadeep Bhar, Akshay Chaturvedi, Julie Hunter, Soumya Paul

With the advent of large language models (LLMs), the trend in NLP has been to train LLMs on vast amounts of data to solve diverse language understanding and generation tasks.

Analyzing Semantic Faithfulness of Language Models via Input Intervention on Question Answering

1 code implementation21 Dec 2022 Akshay Chaturvedi, Swarnadeep Bhar, Soumadeep Saha, Utpal Garain, Nicholas Asher

While transformer models achieve high performance on standard question answering tasks, we show that they fail to be semantically faithful once we perform these interventions for a significant number of cases (~50% for deletion intervention, and ~20% drop in accuracy for negation intervention).

Conversational Question Answering Negation

Pick-Object-Attack: Type-Specific Adversarial Attack for Object Detection

1 code implementation5 Jun 2020 Omid Mohamad Nezami, Akshay Chaturvedi, Mark Dras, Utpal Garain

We specifically aim to attack the widely used Faster R-CNN by changing the predicted label for a particular object in an image: where prior work has targeted one specific object (a stop sign), we generalise to arbitrary objects, with the key challenge being the need to change the labels of all bounding boxes for all instances of that object type.

Adversarial Attack Image Captioning +5

Exploring the Robustness of NMT Systems to Nonsensical Inputs

no code implementations3 Aug 2019 Akshay Chaturvedi, Abijith KP, Utpal Garain

In this paper, we study the behaviour of NMT systems when multiple changes are made to the source sentence.

Adversarial Attack Machine Translation +3

Mimic and Fool: A Task Agnostic Adversarial Attack

1 code implementation11 Jun 2019 Akshay Chaturvedi, Utpal Garain

Keeping this in mind, we propose Mimic and Fool, a task agnostic adversarial attack.

Adversarial Attack Image Captioning +3

CapsDeMM: Capsule network for Detection of Munro's Microabscess in skin biopsy images

1 code implementation20 Aug 2018 Anabik Pal, Akshay Chaturvedi, Utpal Garain, Aditi Chandra, Raghunath Chatterjee, Swapan Senapati

This paper presents an approach for automatic detection of Munro's Microabscess in stratum corneum (SC) of human skin biopsy in order to realize a machine assisted diagnosis of Psoriasis.

General Classification

A Neural Lemmatizer for Bengali

no code implementations LREC 2016 Abhisek Chakrabarty, Akshay Chaturvedi, Utpal Garain

Given a word along with its contextual neighbours as input, the model is designed to produce the lemma of the concerned word as output.

LEMMA Lemmatization

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