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Devamanyu Hazarika

13 accepted papers

2025

Do LLMs Recognize Your Preferences? Evaluating Personalized Preference Following in LLMs

ICLR 2025oral

Large Language Models (LLMs) are increasingly deployed as chatbots, yet their ability to personalize responses to user preferences remains limited. We introduce PrefEval, a benchmark for evaluating LLMs' ability to infer, memorize and adhere to user preferences in long-context conversational setting…

2025

Split-Merge: Scalable and Memory-Efficient Merging of Expert LLMs

EMNLP 2025

We introduce a zero-shot merging framework for large language models (LLMs) that consolidates specialized domain experts into a single model without any further training. Our core contribution lies in leveraging relative task vectors—difference representations encoding each expert’s unique traits wi

2024

From Pixels to Personas: Investigating and Modeling Self-Anthropomorphism in Human-Robot Dialogues

EMNLP 2024finding

Self-anthropomorphism in robots manifests itself through their display of human-like characteristics in dialogue, such as expressing preferences and emotions. Our study systematically analyzes self-anthropomorphic expression within various dialogue datasets, outlining the contrasts between self-anth…

Cited by 0SourcePDFScholar
2023

CESAR: Automatic Induction of Compositional Instructions for Multi-turn Dialogs

EMNLP 2023long main

Instruction-based multitasking has played a critical role in the success of large language models (LLMs) in multi-turn dialog applications. While publicly available LLMs have shown promising performance, when exposed to complex instructions with multiple constraints, they lag against state-of-the-ar…

Cited by 0SourceScholar
2023

KILM: Knowledge Injection into Encoder-Decoder Language Models

ACL 2023long

Large pre-trained language models (PLMs) have been shown to retain implicit knowledge within their parameters. To enhance this implicit knowledge, we propose Knowledge Injection into Language Models (KILM), a novel approach that injects entity-related knowledge into encoder-decoder PLMs, via a gener…

2023

Using In-Context Learning to Improve Dialogue Safety

EMNLP 2023long findings

While large neural-based conversational models have become increasingly proficient dialogue agents, recent work has highlighted safety issues with these systems. For example, these systems can be goaded into generating toxic content, often perpetuating social biases or stereotypes. We investigate a…

Cited by 0SourceScholar
2022

Analyzing Modality Robustness in Multimodal Sentiment Analysis

NAACL 2022long

Building robust multimodal models are crucial for achieving reliable deployment in the wild. Despite its importance, less attention has been paid to identifying and improving the robustness of Multimodal Sentiment Analysis (MSA) models. In this work, we hope to address that by (i) Proposing simple d…

2022

Attention Biasing and Context Augmentation for Zero-Shot Control of Encoder-Decoder Transformers for Natural Language Generation

AAAI 2022technical

Controlling neural network-based models for natural language generation (NLG) to realize desirable attributes in the generated outputs has broad applications in numerous areas such as machine translation, document summarization, and dialog systems. Approaches that enable such control in a zero-shot…

Cited by 7SourcePDFScholar
2022

Empowering parameter-efficient transfer learning by recognizing the kernel structure in self-attention

NAACL 2022findings

The massive amount of trainable parameters in the pre-trained language models (PLMs) makes them hard to be deployed to multiple downstream tasks. To address this issue, parameter-efficient transfer learning methods have been proposed to tune only a few parameters during fine-tuning while freezing th…

2022

Inducer-tuning: Connecting Prefix-tuning and Adapter-tuning

EMNLP 2022main

Prefix-tuning, or more generally continuous prompt tuning, has become an essential paradigm of parameter-efficient transfer learning. Using a large pre-trained language model (PLM), prefix-tuning can obtain strong performance by training only a small portion of parameters. In this paper, we propose…

2022

So Different Yet So Alike! Constrained Unsupervised Text Style Transfer

ACL 2022long

Automatic transfer of text between domains has become popular in recent times. One of its aims is to preserve the semantic content while adapting to the target domain. However, it does not explicitly maintain other attributes between the source and translated text: e.g., text length and descriptiven…

2021

Domain Divergences: A Survey and Empirical Analysis

NAACL 2021long

Domain divergence plays a significant role in estimating the performance of a model in new domains. While there is a significant literature on divergence measures, researchers find it hard to choose an appropriate divergence for a given NLP application. We address this shortcoming by both surveying…

Cited by 52SourcePDFScholar