Papers by Tejas Dhamecha
Role of Language Relatedness in Multilingual Fine-tuning of Language Models: A Case Study in Indo-Aryan Languages (2021.emnlp-main)
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| Challenge: | A study of multilingual fine-tuning yields better performance on downstream NLP applications . low resource languages such as Oriya and Punjabi are found to be the largest beneficiaries of multi-lingual fine tuning. |
| Approach: | They propose to leverage the relatedness of languages that belong to the same family in NLP models by multilingual fine-tuning. |
| Outcome: | The proposed approach improves performance on downstream NLP tasks by 15% compared to monolingual fine-tuning. |
Disfluency Correction using Unsupervised and Semi-supervised Learning (2021.eacl-main)
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Nikhil Saini, Drumil Trivedi, Shreya Khare, Tejas Dhamecha, Preethi Jyothi, Samarth Bharadwaj, Pushpak Bhattacharyya
| Challenge: | Disfluencies in conversational speech can affect performance of downstream NLP tasks. |
| Approach: | They propose a disfluency correction model that converts disfluent to fluent text . they use unsupervised encoder-decoder models to generate semi-supervised models . |
| Outcome: | The proposed model achieves a BLEU score of 79.39 on the Switchboard corpus test set and 85.28 with semi-supervision. |
On Utilizing Constituent Language Resources to Improve Downstream Tasks in Hinglish (2022.findings-emnlp)
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| Challenge: | Intuitively, Hindi and English corpora should aid improve task performance on code-switched Hindi-English. |
| Approach: | They propose a meta-learning framework that utilizes the labelled resources of the downstream tasks in the constituent languages to improve task performance. |
| Outcome: | The proposed framework improves the performance on downstream tasks on code-switched Hindi-English. |
Pre-Training BERT on Domain Resources for Short Answer Grading (D19-1)
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| Challenge: | Pre-trained contextualized representations have achieved state-of-the-art results on multiple downstream NLP tasks by fine-tuning with task-specific data. |
| Approach: | They propose to augment domain-specific data by using labeled short answering grading data for further enhancement of the pre-trained language model. |
| Outcome: | The proposed model can be enhanced by augmenting data from domain-specific resources like textbooks and labeled short answering grading data. |
Development and Deployment of a Large-Scale Dialog-based Intelligent Tutoring System (N19-2)
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Shazia Afzal, Tejas Dhamecha, Nirmal Mukhi, Renuka Sindhgatta, Smit Marvaniya, Matthew Ventura, Jessica Yarbro
| Challenge: | Dialog-based intelligent tutoring systems capture the effectiveness of expert human teacher-learner interactions by using natural language dialogue. |
| Approach: | They propose to use dialog-based tutoring systems to help students learn through a sequence of dialogue moves in natural language to steer them through varying levels of content granularity. |
| Outcome: | The proposed system is being used by hundreds of college level students for practice and self-regulated study in diverse subjects like Sociology, Communications, and American Government. |
Semi-Structured Object Sequence Encoders (2023.findings-emnlp)
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Rudra Murthy, Riyaz Bhat, Chulaka Gunasekara, Siva Patel, Hui Wan, Tejas Dhamecha, Danish Contractor, Marina Danilevsky
| Challenge: | Semi-structured object sequences are often represented as a sequence of key-value pairs over time . authors propose a two-part approach that takes each key independently and encodes a representation of its values over time. |
| Approach: | They propose a two-part approach that first considers each key independently and encodes a representation of its values over time. |
| Outcome: | The proposed approach outperforms existing methods on multiple prediction tasks using real-world data. |