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Self-modulating mechanisms introduce dynamic adaptation capabilities within language models through contextual realignment strategies that influence token embedding trajectories across extended sequences. Contextual Flux is explored as an…

Given the growing trend of many organizations integrating Retrieval Augmented Generation (RAG) into their operations, we assess RAG on domain-specific data and test state-of-the-art models across various optimization techniques. We…

人工智能 · 计算机科学 2024-11-14 Anum Afzal , Juraj Vladika , Gentrit Fazlija , Andrei Staradubets , Florian Matthes

Considerable progress has been made recently in open-domain question answering (QA) problems, which require Information Retrieval (IR) and Reading Comprehension (RC). A popular approach to improve the system's performance is to improve the…

计算与语言 · 计算机科学 2022-05-10 Zhengzhong Liang , Tushar Khot , Steven Bethard , Mihai Surdeanu , Ashish Sabharwal

The recurring context in which objects appear holds valuable information that can be employed to predict their existence. This intuitive observation indeed led many researchers to endow appearance-based detectors with explicit reasoning…

计算机视觉与模式识别 · 计算机科学 2019-04-05 Ehud Barnea , Ohad Ben-Shahar

Argument mining systems often consider contextual information, i.e. information outside of an argumentative discourse unit, when trained to accomplish tasks such as argument component identification, classification, and relation extraction.…

计算与语言 · 计算机科学 2021-02-23 Luca Lugini , Diane Litman

Fusion-in-Decoder (FiD) is a powerful retrieval-augmented language model that sets the state-of-the-art on many knowledge-intensive NLP tasks. However, the architecture used for FiD was chosen by making minimal modifications to a standard…

计算与语言 · 计算机科学 2023-06-06 Michiel de Jong , Yury Zemlyanskiy , Joshua Ainslie , Nicholas FitzGerald , Sumit Sanghai , Fei Sha , William Cohen

Learning to rank has been intensively studied and widely applied in information retrieval. Typically, a global ranking function is learned from a set of labeled data, which can achieve good performance on average but may be suboptimal for…

信息检索 · 计算机科学 2018-04-25 Qingyao Ai , Keping Bi , Jiafeng Guo , W. Bruce Croft

Open-Domain Question Answering (ODQA) systems necessitate a reader model capable of generating answers by simultaneously referring to multiple passages. Although representative models like Fusion-in-Decoder (FiD) have been proposed to…

计算与语言 · 计算机科学 2023-05-29 Cunxiang Wang , Haofei Yu , Yue Zhang

Language model fine-tuning is essential for modern natural language processing, but is computationally expensive and time-consuming. Further, the effectiveness of fine-tuning is limited by the inclusion of training examples that negatively…

计算与语言 · 计算机科学 2022-05-23 Richard Antonello , Nicole Beckage , Javier Turek , Alexander Huth

The emergence of reinforcement learning in post-training of large language models has sparked significant interest in reward models. Reward models assess the quality of sampled model outputs to generate training signals. This task is also…

计算与语言 · 计算机科学 2025-10-06 Sebastian Gehrmann

Transformers have demonstrated a strong ability for in-context learning (ICL), enabling models to solve previously unseen tasks using only example input output pairs provided at inference time. While prior theoretical work has established…

机器学习 · 计算机科学 2026-05-19 Rushil Chandrupatla , Leo Bangayan , Sebastian Leng

We present three enhancements to existing encoder-decoder models for open-domain conversational agents, aimed at effectively modeling coherence and promoting output diversity: (1) We introduce a measure of coherence as the GloVe embedding…

计算与语言 · 计算机科学 2018-11-22 Xinnuo Xu , Ondřej Dušek , Ioannis Konstas , Verena Rieser

As model context lengths continue to increase, the number of demonstrations that can be provided in-context approaches the size of entire training datasets. We study the behavior of in-context learning (ICL) at this extreme scale on…

计算与语言 · 计算机科学 2025-03-05 Amanda Bertsch , Maor Ivgi , Emily Xiao , Uri Alon , Jonathan Berant , Matthew R. Gormley , Graham Neubig

Pre-trained Large Language Models (LLMs) require post-training methods such as supervised fine-tuning (SFT) on instruction-response pairs to enable instruction following. However, this process can potentially harm existing capabilities…

计算与语言 · 计算机科学 2025-02-04 Yihan Wang , Andrew Bai , Nanyun Peng , Cho-Jui Hsieh

Large language models (LLMs) have the remarkable ability to solve new tasks with just a few examples, but they need access to the right tools. Retrieval Augmented Generation (RAG) addresses this problem by retrieving a list of relevant…

信息检索 · 计算机科学 2023-12-12 Raviteja Anantha , Tharun Bethi , Danil Vodianik , Srinivas Chappidi

Modern sequential recommender systems commonly use transformer-based models for next-item prediction. While these models demonstrate a strong balance between efficiency and quality, integrating interleaving features - such as the query…

信息检索 · 计算机科学 2025-08-13 Andrii Dzhoha , Alisa Mironenko , Evgeny Labzin , Vladimir Vlasov , Maarten Versteegh , Marjan Celikik

Retrieval augmented generation mitigates limitations of large language models in factual consistency and knowledge updating by introducing external knowledge. However, practical applications still suffer from semantic misalignment between…

计算与语言 · 计算机科学 2026-03-06 Xin Chen , Saili Uday Gadgil , Jiarong Qiu

The organization of latent knowledge within large-scale models poses unique challenges when addressing overlapping representations and optimizing contextual accuracy. Conceptual redundancies embedded across layers often result in…

计算与语言 · 计算机科学 2025-03-26 Joseph Sakau , Evander Kozlowski , Roderick Thistledown , Basil Steinberger

The development of large language models (LLMs) has achieved superior performance in a range of downstream tasks, including LLM-based retrieval-augmented generation (RAG). The quality of generated content heavily relies on the usefulness of…

计算与语言 · 计算机科学 2026-01-27 Fengran Mo , Zhan Su , Yuchen Hui , Jinghan Zhang , Jia Ao Sun , Zheyuan Liu , Chao Zhang , Tetsuya Sakai , Jian-Yun Nie

Many of the kinds of language model used in speech understanding suffer from imperfect modeling of intra-sentential contextual influences. I argue that this problem can be addressed by clustering the sentences in a training corpus…

cmp-lg · 计算机科学 2008-02-03 David Carter