Search Results for author: Prakhar Gupta

Found 22 papers, 15 papers with code

USB: A Unified Summarization Benchmark Across Tasks and Domains

1 code implementation23 May 2023 Kundan Krishna, Prakhar Gupta, Sanjana Ramprasad, Byron C. Wallace, Jeffrey P. Bigham, Zachary C. Lipton

While the NLP community has produced numerous summarization benchmarks, none provide the rich annotations required to simultaneously address many important problems related to control and reliability.

Abstractive Text Summarization Extractive Summarization +1

Using In-Context Learning to Improve Dialogue Safety

no code implementations2 Feb 2023 Nicholas Meade, Spandana Gella, Devamanyu Hazarika, Prakhar Gupta, Di Jin, Siva Reddy, Yang Liu, Dilek Hakkani-Tür

For instance, using automatic evaluation, we find our best fine-tuned baseline only generates safe responses to unsafe dialogue contexts from DiaSafety 4. 04% more than our approach.

In-Context Learning Re-Ranking +1

Understanding the Effectiveness of Very Large Language Models on Dialog Evaluation

no code implementations27 Jan 2023 Jessica Huynh, Cathy Jiao, Prakhar Gupta, Shikib Mehri, Payal Bajaj, Vishrav Chaudhary, Maxine Eskenazi

The paper shows that the choice of datasets used for training a model contributes to how well it performs on a task as well as on how the prompt should be structured.

Question Answering

DialGuide: Aligning Dialogue Model Behavior with Developer Guidelines

1 code implementation20 Dec 2022 Prakhar Gupta, Yang Liu, Di Jin, Behnam Hedayatnia, Spandana Gella, Sijia Liu, Patrick Lange, Julia Hirschberg, Dilek Hakkani-Tur

These guidelines provide information about the context they are applicable to and what should be included in the response, allowing the models to generate responses that are more closely aligned with the developer's expectations and intent.

Response Generation

InstructDial: Improving Zero and Few-shot Generalization in Dialogue through Instruction Tuning

1 code implementation25 May 2022 Prakhar Gupta, Cathy Jiao, Yi-Ting Yeh, Shikib Mehri, Maxine Eskenazi, Jeffrey P. Bigham

We introduce InstructDial, an instruction tuning framework for dialogue, which consists of a repository of 48 diverse dialogue tasks in a unified text-to-text format created from 59 openly available dialogue datasets.

Dialogue Evaluation Dialogue Generation +3

Target-Guided Dialogue Response Generation Using Commonsense and Data Augmentation

no code implementations Findings (NAACL) 2022 Prakhar Gupta, Harsh Jhamtani, Jeffrey P. Bigham

Target-guided response generation enables dialogue systems to smoothly transition a conversation from a dialogue context toward a target sentence.

Data Augmentation Response Generation +1

Synthesizing Adversarial Negative Responses for Robust Response Ranking and Evaluation

1 code implementation Findings (ACL) 2021 Prakhar Gupta, Yulia Tsvetkov, Jeffrey P. Bigham

Experiments on classification, ranking and evaluation tasks across multiple datasets demonstrate that our approaches outperform strong baselines in providing informative negative examples for training dialogue systems.

Binary Classification Dialogue Evaluation

Obtaining Better Static Word Embeddings Using Contextual Embedding Models

1 code implementation ACL 2021 Prakhar Gupta, Martin Jaggi

The advent of contextual word embeddings -- representations of words which incorporate semantic and syntactic information from their context -- has led to tremendous improvements on a wide variety of NLP tasks.

Computational Efficiency Word Embeddings

Lightweight Cross-Lingual Sentence Representation Learning

1 code implementation ACL 2021 Zhuoyuan Mao, Prakhar Gupta, Pei Wang, Chenhui Chu, Martin Jaggi, Sadao Kurohashi

Large-scale models for learning fixed-dimensional cross-lingual sentence representations like LASER (Artetxe and Schwenk, 2019b) lead to significant improvement in performance on downstream tasks.

Contrastive Learning Document Classification +4

Controlling Dialogue Generation with Semantic Exemplars

1 code implementation NAACL 2021 Prakhar Gupta, Jeffrey P. Bigham, Yulia Tsvetkov, Amy Pavel

Dialogue systems pretrained with large language models generate locally coherent responses, but lack the fine-grained control over responses necessary to achieve specific goals.

Dialogue Generation Response Generation

Using Image Captions and Multitask Learning for Recommending Query Reformulations

no code implementations2 Mar 2020 Gaurav Verma, Vishwa Vinay, Sahil Bansal, Shashank Oberoi, Makkunda Sharma, Prakhar Gupta

Interactive search sessions often contain multiple queries, where the user submits a reformulated version of the previous query in response to the original results.

Descriptive Image Captioning +1

Robust Cross-lingual Embeddings from Parallel Sentences

2 code implementations28 Dec 2019 Ali Sabet, Prakhar Gupta, Jean-Baptiste Cordonnier, Robert West, Martin Jaggi

Recent advances in cross-lingual word embeddings have primarily relied on mapping-based methods, which project pretrained word embeddings from different languages into a shared space through a linear transformation.

Cross-Lingual Document Classification Cross-Lingual Word Embeddings +7

Investigating Evaluation of Open-Domain Dialogue Systems With Human Generated Multiple References

2 code implementations WS 2019 Prakhar Gupta, Shikib Mehri, Tiancheng Zhao, Amy Pavel, Maxine Eskenazi, Jeffrey P. Bigham

The aim of this paper is to mitigate the shortcomings of automatic evaluation of open-domain dialog systems through multi-reference evaluation.

Dialogue Evaluation

WriterForcing: Generating more interesting story endings

2 code implementations WS 2019 Prakhar Gupta, Vinayshekhar Bannihatti Kumar, Mukul Bhutani, Alan W. black

In this paper, we propose models which generate more diverse and interesting outputs by 1) training models to focus attention on important keyphrases of the story, and 2) promoting generation of non-generic words.

Text Generation

Online Diverse Learning to Rank from Partial-Click Feedback

no code implementations1 Nov 2018 Prakhar Gupta, Gaurush Hiranandani, Harvineet Singh, Branislav Kveton, Zheng Wen, Iftikhar Ahamath Burhanuddin

We assume that the user examines the list of recommended items until the user is attracted by an item, which is clicked, and does not examine the rest of the items.

Learning-To-Rank Recommendation Systems

Learning Word Vectors for 157 Languages

2 code implementations LREC 2018 Edouard Grave, Piotr Bojanowski, Prakhar Gupta, Armand Joulin, Tomas Mikolov

Distributed word representations, or word vectors, have recently been applied to many tasks in natural language processing, leading to state-of-the-art performance.

Ranked #12 on Only Connect Walls Dataset Task 1 (Grouping) on OCW (using extra training data)

Only Connect Walls Dataset Task 1 (Grouping)

Saliency Prediction for Mobile User Interfaces

no code implementations10 Nov 2017 Prakhar Gupta, Shubh Gupta, Ajaykrishnan Jayagopal, Sourav Pal, Ritwik Sinha

However, given the difference in what constitutes a mobile interface, and the usage context of these devices, we postulate that saliency prediction for mobile interface images requires a fresh approach.

Saliency Prediction

Unsupervised Learning of Sentence Embeddings using Compositional n-Gram Features

5 code implementations NAACL 2018 Matteo Pagliardini, Prakhar Gupta, Martin Jaggi

The recent tremendous success of unsupervised word embeddings in a multitude of applications raises the obvious question if similar methods could be derived to improve embeddings (i. e. semantic representations) of word sequences as well.

Sentence Sentence Embeddings +1

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