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Generating high-quality answers consistently by providing contextual information embedded in the prompt passed to the Large Language Model (LLM) is dependent on the quality of information retrieval. As the corpus of contextual information…

Information Retrieval · Computer Science 2024-08-01 Sai Ganesh , Anupam Purwar , Gautam B

Current neural network-based conversational models lack diversity and generate boring responses to open-ended utterances. Priors such as persona, emotion, or topic provide additional information to dialog models to aid response generation,…

Computation and Language · Computer Science 2019-08-05 Richard Csaky , Patrik Purgai , Gabor Recski

Long-context reasoning requires accurately identifying relevant information in extensive, noisy input contexts. Previous research shows that using test-time learning to encode context directly into model parameters can effectively enable…

Computation and Language · Computer Science 2026-01-01 Zeming Chen , Angelika Romanou , Gail Weiss , Antoine Bosselut

Large-scale language models often learn behaviors that are misaligned with user expectations. Generated text may contain offensive or toxic language, contain significant repetition, or be of a different sentiment than desired by the user.…

Computation and Language · Computer Science 2022-11-18 Ximing Lu , Sean Welleck , Jack Hessel , Liwei Jiang , Lianhui Qin , Peter West , Prithviraj Ammanabrolu , Yejin Choi

Context engineering for large language model (LLM) agents requires distinguishing pragmatically useful information from misleading distractors. We introduce Entropic Context Shaping (ECS), an information-theoretic framework that measures…

Computation and Language · Computer Science 2026-01-21 Hyunjun Kim

Recent advancements in large language models (LLMs) have highlighted the importance of extending context lengths for handling complex tasks. While traditional methods for training on long contexts often use filtered long documents, these…

Computation and Language · Computer Science 2025-02-12 Chaochen Gao , Xing Wu , Qi Fu , Songlin Hu

Motivated by suggested question generation in conversational news recommendation systems, we propose a model for generating question-answer pairs (QA pairs) with self-contained, summary-centric questions and length-constrained,…

Computation and Language · Computer Science 2021-09-13 Li Zhou , Kevin Small , Yong Zhang , Sandeep Atluri

Question Answering (QA) is in increasing demand as the amount of information available online and the desire for quick access to this content grows. A common approach to QA has been to fine-tune a pretrained language model on a…

Computation and Language · Computer Science 2020-04-27 Alexander R. Fabbri , Patrick Ng , Zhiguo Wang , Ramesh Nallapati , Bing Xiang

As NLP models become larger, executing a trained model requires significant computational resources incurring monetary and environmental costs. To better respect a given inference budget, we propose a modification to contextual…

Computation and Language · Computer Science 2020-05-12 Roy Schwartz , Gabriel Stanovsky , Swabha Swayamdipta , Jesse Dodge , Noah A. Smith

Motivated by the emerging demand in the financial industry for the automatic analysis of unstructured and structured data at scale, Question Answering (QA) systems can provide lucrative and competitive advantages to companies by…

Computation and Language · Computer Science 2025-05-05 Bithiah Yuan

In this paper, we focus on methods to reduce the size and improve the quality of the prompt context required for question-answering systems. Attempts to increase the number of retrieved chunked documents and thereby enlarge the context…

Information Retrieval · Computer Science 2024-07-02 Vitaly Bulgakov

Answering financial questions is often treated as an information retrieval problem. In practice, however, much of the relevant information is already available in curated vendor systems, especially for quantitative analysis. We study…

Information Retrieval · Computer Science 2026-03-24 Sasan Mansouri , Edoardo Pilla , Mark Wahrenburg , Fabian Woebbeking

In this paper we propose a novel approach towards improving the efficiency of Question Answering (QA) systems by filtering out questions that will not be answered by them. This is based on an interesting new finding: the answer confidence…

Computation and Language · Computer Science 2021-09-16 Siddhant Garg , Alessandro Moschitti

Large language models (LLMs) often struggle with context fidelity, producing inconsistent answers when responding to questions based on provided information. Existing approaches either rely on expensive supervised fine-tuning to generate…

Computation and Language · Computer Science 2025-09-18 Suyuchen Wang , Jinlin Wang , Xinyu Wang , Shiqi Li , Xiangru Tang , Sirui Hong , Xiao-Wen Chang , Chenglin Wu , Bang Liu

A retriever, which retrieves relevant knowledge pieces from a knowledge base given a context, is an important component in many natural language processing (NLP) tasks. Retrievers have been introduced in knowledge-grounded dialog systems to…

Computation and Language · Computer Science 2025-06-03 Yucheng Cai , Ke Li , Yi Huang , Junlan Feng , Zhijian Ou

Retrieval-augmented generation supports language models to strengthen their factual groundings by providing external contexts. However, language models often face challenges when given extensive information, diminishing their effectiveness…

Computation and Language · Computer Science 2024-10-15 Chanwoong Yoon , Taewhoo Lee , Hyeon Hwang , Minbyul Jeong , Jaewoo Kang

To enable building and testing models on long-document comprehension, we introduce QuALITY, a multiple-choice QA dataset with context passages in English that have an average length of about 5,000 tokens, much longer than typical current…

Conventional research on large language models (LLMs) has primarily focused on refining output distributions, while paying less attention to the decoding process that transforms these distributions into final responses. Recent advances,…

Computation and Language · Computer Science 2025-10-28 Chenheng Zhang , Tianqi Du , Jizhe Zhang , Mingqing Xiao , Yifei Wang , Yisen Wang , Zhouchen Lin

The Q&A community has become an important way for people to access knowledge and information from the Internet. However, the existing translation based on models does not consider the query specific semantics when assigning weights to query…

Information Retrieval · Computer Science 2019-07-04 Dong Li , Lin Li

Large language models (LLMs) have received significant attention by achieving remarkable performance across various tasks. However, their fixed context length poses challenges when processing long documents or maintaining extended…

Computation and Language · Computer Science 2023-04-25 Yucheng Li
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