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Mitesh M. Khapra

26 accepted papers

2025

Can Vision-Language Models Evaluate Handwritten Math?

ACL 2025long

Recent advancements in Vision-Language Models (VLMs) have opened new possibilities in automatic grading of handwritten student responses, particularly in mathematics. However, a comprehensive study to test the ability of VLMs to evaluate and reason over handwritten content remains absent. To address…

2025

Cross-Lingual Auto Evaluation for Assessing Multilingual LLMs

ACL 2025long

Evaluating machine-generated text remains a significant challenge in NLP, especially for non-English languages. Current methodologies, including automated metrics, human assessments, and LLM-based evaluations, predominantly focus on English, revealing a significant gap in multilingual evaluation fra…

2025

FairI Tales: Evaluation of Fairness in Indian Contexts with a Focus on Bias and Stereotypes

ACL 2025long

Existing studies on fairness are largely Western-focused, making them inadequate for culturally diverse countries such as India. To address this gap, we introduce INDIC-BIAS, a comprehensive India-centric benchmark designed to evaluate fairness of LLMs across 85 identity groups encompassing diverse…

2025

Towards Bringing Parity in Pretraining Datasets for Low-resource Indian Languages

ICASSP 2025accepted

Lack of large-scale pretraining data for low resource languages from the Indian sub-continent, leads to their underrepresentation in existing massively multilingual models. In this work, we address this gap by proposing a framework to create large raw audio datasets for such under-represented langua…

Cited by 0SourceScholar
2025

Towards Building Large Scale Datasets and State-of-the-Art Automatic Speech Translation Systems for 14 Indian Languages

ACL 2025long

Speech translation for Indian languages remains a challenging task due to the scarcity of large-scale, publicly available datasets that capture the linguistic diversity and domain coverage essential for real-world applications. Existing datasets cover a fraction of Indian languages and lack the brea…

2024

Finding Blind Spots in Evaluator LLMs with Interpretable Checklists

EMNLP 2024main

Large Language Models (LLMs) are increasingly relied upon to evaluate text outputs of other LLMs, thereby influencing leaderboards and development decisions. However, concerns persist over the accuracy of these assessments and the potential for misleading conclusions. In this work, we investigate th…

2024

IndicLLMSuite: A Blueprint for Creating Pre-training and Fine-Tuning Datasets for Indian Languages

ACL 2024long

Despite the considerable advancements in English LLMs, the progress in building comparable models for other languages has been hindered due to the scarcity of tailored resources. Our work aims to bridge this divide by introducing an expansive suite of resources specifically designed for the developm…

2024

IndicVoices-R: Unlocking a Massive Multilingual Multi-speaker Speech Corpus for Scaling Indian TTS

NeurIPS 2024poster

Recent advancements in text-to-speech (TTS) synthesis show that large-scale models trained with extensive web data produce highly natural-sounding output. However, such data is scarce for Indian languages due to the lack of high-quality, manually subtitled data on platforms like LibriVox or YouTube.…

2023

Bhasa-Abhijnaanam: Native-script and romanized Language Identification for 22 Indic languages

ACL 2023short

We create publicly available language identification (LID) datasets and models in all 22 Indian languages listed in the Indian constitution in both native-script and romanized text. First, we create Bhasha-Abhijnaanam, a language identification test set for native-script as well as romanized text wh…

2023

Effectiveness of Mining Audio and Text Pairs from Public Data for Improving ASR Systems for Low-Resource Languages

ICASSP 2023accepted

Collecting labelled datasets for speech recognition systems for low-resource languages on a diverse set of domains and speakers is expensive. In this work, we demonstrate an inexpensive and effective alternative by "mining" text and audio pairs for Indian languages from public sources, specifically…

Cited by 0SourceScholar
2023

IndicMT Eval: A Dataset to Meta-Evaluate Machine Translation Metrics for Indian Languages

ACL 2023long

The rapid growth of machine translation (MT) systems necessitates meta-evaluations of evaluation metrics to enable selection of those that best reflect MT quality. Unfortunately, most meta-evaluation studies focus on European languages, the observations for which may not always apply to other langua…

2023

IndicSUPERB: A Speech Processing Universal Performance Benchmark for Indian Languages

AAAI 2023technical

A cornerstone in AI research has been the creation and adoption of standardized training and test datasets to earmark the progress of state-of-the-art models. A particularly successful example is the GLUE dataset for training and evaluating Natural Language Understanding (NLU) models for English. Th…

2023

Naamapadam: A Large-Scale Named Entity Annotated Data for Indic Languages

ACL 2023long

We present, Naamapadam, the largest publicly available Named Entity Recognition (NER) dataset for the 11 major Indian languages from two language families. The dataset contains more than 400k sentences annotated with a total of at least 100k entities from three standard entity categories (Person, Lo…

2023

Towards Building Text-to-Speech Systems for the Next Billion Users

ICASSP 2023accepted

Deep learning based text-to-speech (TTS) systems have been evolving rapidly with advances in model architectures, training methodologies, and generalization across speakers and languages. However, these advances have not been thoroughly investigated for Indian language speech synthesis. Such investi…

Cited by 0SourceScholar
2023

Towards Leaving No Indic Language Behind: Building Monolingual Corpora, Benchmark and Models for Indic Languages

ACL 2023long

Building Natural Language Understanding (NLU) capabilities for Indic languages, which have a collective speaker base of more than one billion speakers is absolutely crucial. In this work, we aim to improve the NLU capabilities of Indic languages by making contributions along 3 important axes (i) mon…

2022

Addressing Resource Scarcity across Sign Languages with Multilingual Pretraining and Unified-Vocabulary Datasets

NeurIPS 2022accept

There are over 300 sign languages in the world, many of which have very limited or no labelled sign-to-text datasets. To address low-resource data scenarios, self-supervised pretraining and multilingual finetuning have been shown to be effective in natural language and speech processing. In this wor…

Cited by 10SourcePDFScholar
2022

IndicNLG Benchmark: Multilingual Datasets for Diverse NLG Tasks in Indic Languages

EMNLP 2022main

Natural Language Generation (NLG) for non-English languages is hampered by the scarcity of datasets in these languages. We present the IndicNLG Benchmark, a collection of datasets for benchmarking NLG for 11 Indic languages. We focus on five diverse tasks, namely, biography generation using Wikipedi…

2022

Towards Building ASR Systems for the Next Billion Users

AAAI 2022technical

Recent methods in speech and language technology pretrain very large models which are fine-tuned for specific tasks. However, the benefits of such large models are often limited to a few resource rich languages of the world. In this work, we make multiple contributions towards building ASR systems f…

2021

A Systematic Evaluation of Object Detection Networks for Scientific Plots

AAAI 2021technical

Are existing object detection methods adequate for detecting text and visual elements in scientific plots which are arguably different than the objects found in natural images? To answer this question, we train and compare the accuracy of Fast/Faster R-CNN, SSD, YOLO and RetinaNet on the PlotQA data…

Cited by 9SourcePDFScholar
2021

Perturbation CheckLists for Evaluating NLG Evaluation Metrics

EMNLP 2021main

Natural Language Generation (NLG) evaluation is a multifaceted task requiring assessment of multiple desirable criteria, e.g., fluency, coherency, coverage, relevance, adequacy, overall quality, etc. Across existing datasets for 6 NLG tasks, we observe that the human evaluation scores on these multi…

2021

The Heads Hypothesis: A Unifying Statistical Approach Towards Understanding Multi-Headed Attention in BERT

AAAI 2021technical

Multi-headed attention heads are a mainstay in transformer-based models. Different methods have been proposed to classify the role of each attention head based on the relations between tokens which have high pair-wise attention. These roles include syntactic (tokens with some syntactic relation), lo…

2021

Unsupervised Deep Video Denoising

ICCV 2021poster

Deep convolutional neural networks (CNNs) for video denoising are typically trained with supervision, assuming the availability of clean videos. However, in many applications, such as microscopy, noiseless videos are not available. To address this, we propose an Unsupervised Deep Video Denoiser (UDV…

Cited by 81PDFcodeScholar
2020

Joint Transformer/RNN Architecture for Gesture Typing in Indic Languages

COLING 2020main

Gesture typing is a method of typing words on a touch-based keyboard by creating a continuous trace passing through the relevant keys. This work is aimed at developing a keyboard that supports gesture typing in Indic languages. We begin by noting that when dealing with Indic languages, one needs to…

2018

DuoRC: Towards Complex Language Understanding with Paraphrased Reading Comprehension

ICLR 2018workshop

We propose DuoRC, a novel dataset for Reading Comprehension (RC) that motivates several new challenges for neural approaches in language understanding beyond those offered by existing RC datasets. DuoRC contains 186,089 unique question-answer pairs created from a collection of 7680 pairs of movie pl…

Cited by 161SourcecodeScholar
2017

Attend, Adapt and Transfer: Attentive Deep Architecture for Adaptive Transfer from multiple sources in the same domain

ICLR 2017poster

Transferring knowledge from prior source tasks in solving a new target task can be useful in several learning applications. The application of transfer poses two serious challenges which have not been adequately addressed. First, the agent should be able to avoid negative transfer, which happens whe…

Cited by 75SourceScholar