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Dipanjan Das

10 accepted papers

2024

Task Planning for Object Rearrangement in Multi-Room Environments

AAAI 2024technical

Object rearrangement in a multi-room setup should produce a reasonable plan that reduces the agent's overall travel and the number of steps. Recent state-of-the-art methods fail to produce such plans because they rely on explicit exploration for discovering unseen objects due to partial observabilit…

Cited by 3SourcePDFScholar
2024

Task Planning for Visual Room Rearrangement under Partial Observability

ICLR 2024poster

This paper presents a novel hierarchical task planner under partial observability that empowers an embodied agent to use visual input to efficiently plan a sequence of actions for simultaneous object search and rearrangement in an untidy room, to achieve a desired tidy state. The paper introduces (i…

Cited by 3SourcePDFScholar
2023

Language models are multilingual chain-of-thought reasoners

ICLR 2023poster

We evaluate the reasoning abilities of large language models in multilingual settings. We introduce the Multilingual Grade School Math (MGSM) benchmark, by manually translating 250 grade-school math problems from the GSM8K dataset (Cobbe et al., 2021) into ten typologically diverse languages. We fin…

2023

Query Refinement Prompts for Closed-Book Long-Form QA

ACL 2023long

Large language models (LLMs) have been shown to perform well in answering questions and in producing long-form texts, both in few-shot closed-book settings. While the former can be validated using well-known evaluation metrics, the latter is difficult to evaluate. We resolve the difficulties to eval…

Cited by 0SourcePDFScholar
2023

SEAHORSE: A Multilingual, Multifaceted Dataset for Summarization Evaluation

EMNLP 2023long main

Reliable automatic evaluation of summarization systems is challenging due to the multifaceted and subjective nature of the task. This is especially the case for languages other than English, where human evaluations are scarce. In this work, we introduce SEAHORSE, a dataset for multilingual, multifac…

Cited by 0SourceScholar
2022

A Well-Composed Text is Half Done! Composition Sampling for Diverse Conditional Generation

ACL 2022long

We propose Composition Sampling, a simple but effective method to generate diverse outputs for conditional generation of higher quality compared to previous stochastic decoding strategies. It builds on recently proposed plan-based neural generation models (FROST, Narayan et al, 2021) that are traine…

2022

The MultiBERTs: BERT Reproductions for Robustness Analysis

ICLR 2022spotlight

Experiments with pre-trained models such as BERT are often based on a single checkpoint. While the conclusions drawn apply to the artifact tested in the experiment (i.e., the particular instance of the model), it is not always clear whether they hold for the more general procedure which includes the…

2021

Increasing Faithfulness in Knowledge-Grounded Dialogue with Controllable Features

ACL 2021long

Knowledge-grounded dialogue systems are intended to convey information that is based on evidence provided in a given source text. We discuss the challenges of training a generative neural dialogue model for such systems that is controlled to stay faithful to the evidence. Existing datasets contain a…

Cited by 115SourcePDFScholar
2020

Speech-driven Facial Animation using Cascaded GANs for Learning of Motion and Texture

ECCV 2020poster

Speech-driven facial animation methods should produce accurate and realistic lip motions with natural expressions and realistic texture portraying target-specific facial characteristics. Moreover, the methods should also be adaptable to any unknown faces and speech quickly during inference. Current…

Cited by 119SourcePDFScholar
2019

What do you learn from context? Probing for sentence structure in contextualized word representations

ICLR 2019poster

Contextualized representation models such as ELMo (Peters et al., 2018a) and BERT (Devlin et al., 2018) have recently achieved state-of-the-art results on a diverse array of downstream NLP tasks. Building on recent token-level probing work, we introduce a novel edge probing task design and construct…

Cited by 1017SourcePDFScholar