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We explore the idea of compressing the prompts used to condition language models, and show that compressed prompts can retain a substantive amount of information about the original prompt. For severely compressed prompts, while fine-grained…

计算与语言 · 计算机科学 2022-10-10 David Wingate , Mohammad Shoeybi , Taylor Sorensen

Natural Language Processing (NLP) has undergone transformative changes with the advent of deep learning methodologies. One challenge persistently confronting researchers is the scarcity of high-quality, annotated datasets that drive these…

计算与语言 · 计算机科学 2023-10-13 Sia Gholami , Marwan Omar

Recently, contrastive learning attracts increasing interests in neural text generation as a new solution to alleviate the exposure bias problem. It introduces a sequence-level training signal which is crucial to generation tasks that always…

计算与语言 · 计算机科学 2023-02-06 Chenxin An , Jiangtao Feng , Kai Lv , Lingpeng Kong , Xipeng Qiu , Xuanjing Huang

Contrastive self-supervised learning (CSL) has attracted increasing attention for model pre-training via unlabeled data. The resulted CSL models provide instance-discriminative visual features that are uniformly scattered in the feature…

计算机视觉与模式识别 · 计算机科学 2021-10-15 Yifan Zhang , Bryan Hooi , Dapeng Hu , Jian Liang , Jiashi Feng

Large Language Models (LLMs), despite extensive pretraining on broad internet corpora, often struggle to adapt effectively to specialized domains. There is growing interest in fine-tuning these models for such domains; however, progress is…

计算与语言 · 计算机科学 2026-02-23 Vincent Grari , Ciprian Tomoiaga , Sylvain Lamprier , Tatsunori Hashimoto , Marcin Detyniecki

Vision-Language Models (VLMs) have shown strong performance in zero-shot image classification tasks. However, existing methods, including Contrastive Language-Image Pre-training (CLIP), all rely on annotated text-to-image pairs for aligning…

计算机视觉与模式识别 · 计算机科学 2026-01-22 Dianxing Shi , Dingjie Fu , Yuqiao Liu , Jun Wang

Weak-to-strong generalization provides a promising paradigm for scaling large language models (LLMs) by training stronger models on samples from aligned weaker ones, without requiring human feedback or explicit reward modeling. However, its…

计算与语言 · 计算机科学 2025-10-10 Houcheng Jiang , Junfeng Fang , Jiaxin Wu , Tianyu Zhang , Chen Gao , Yong Li , Xiang Wang , Xiangnan He , Yang Deng

The creation of high-quality human-labeled image-caption datasets presents a significant bottleneck in the development of Visual-Language Models (VLMs). In this work, we investigate an approach that leverages the strengths of Large Language…

计算机视觉与模式识别 · 计算机科学 2024-06-10 Sahand Sharifzadeh , Christos Kaplanis , Shreya Pathak , Dharshan Kumaran , Anastasija Ilic , Jovana Mitrovic , Charles Blundell , Andrea Banino

Recent studies have highlighted the potential of exploiting parallel corpora to enhance multilingual large language models, improving performance in both bilingual tasks, e.g., machine translation, and general-purpose tasks, e.g., text…

计算与语言 · 计算机科学 2025-02-11 Peiqin Lin , André F. T. Martins , Hinrich Schütze

Contrastive learning has become a popular approach in natural language processing, particularly for the learning of sentence embeddings. However, the discrete nature of natural language makes it difficult to ensure the quality of positive…

计算与语言 · 计算机科学 2023-05-23 Qinyuan Cheng , Xiaogui Yang , Tianxiang Sun , Linyang Li , Xipeng Qiu

Large language models (LLMs) have demonstrated exceptional proficiency in language understanding. However, when LLMs align their outputs with deceptive and/or misleading prompts, the generated responses could deviate from the de facto…

计算与语言 · 计算机科学 2025-09-03 Zixuan Shangguan , Yanjie Dong , Lanjun Wang , Xiaoyi Fan , Victor C. M. Leung , Xiping Hu

Large Language Models (LLMs) raise concerns about lowering the cost of generating texts that could be used for unethical or illegal purposes, especially on social media. This paper investigates the promise of such models to help enforce…

计算机与社会 · 计算机科学 2024-03-25 Thales Bertaglia , Lily Heisig , Rishabh Kaushal , Adriana Iamnitchi

Prompting methods play a crucial role in enhancing the capabilities of pre-trained large language models (LLMs). We explore how contrastive prompting (CP) significantly improves the ability of large language models to perform complex…

计算与语言 · 计算机科学 2026-03-06 Liang Yao

Large Language Models (LLMs) have demonstrated exceptional performance across various natural language processing tasks. However, they occasionally generate inaccurate and counterfactual outputs, a phenomenon commonly referred to as…

计算与语言 · 计算机科学 2025-06-04 Dingwei Chen , Feiteng Fang , Shiwen Ni , Feng Liang , Xiping Hu , Ahmadreza Argha , Hamid Alinejad-Rokny , Min Yang , Chengming Li

Recent studies have found that summaries generated by large language models (LLMs) are favored by human annotators over the original reference summaries in commonly used summarization datasets. Therefore, we study an LLM-as-reference…

计算与语言 · 计算机科学 2024-07-19 Yixin Liu , Kejian Shi , Katherine S He , Longtian Ye , Alexander R. Fabbri , Pengfei Liu , Dragomir Radev , Arman Cohan

Predicting and reasoning about the future lie at the heart of many time-series questions. For example, goal-conditioned reinforcement learning can be viewed as learning representations to predict which states are likely to be visited in the…

机器学习 · 计算机科学 2025-10-10 Chongyi Zheng , Ruslan Salakhutdinov , Benjamin Eysenbach

Large Language Models (LLMs) are commonly used as evaluators in various applications, but the reliability of the outcomes remains a challenge. One such challenge is using LLMs-as-judges for direct assessment, i.e., assigning scores from a…

计算与语言 · 计算机科学 2026-04-09 Yoshinari Fujinuma

Contrastive pretraining can substantially increase model generalisation and downstream performance. However, the quality of the learned representations is highly dependent on the data augmentation strategy applied to generate positive…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Mélanie Roschewitz , Fabio De Sousa Ribeiro , Tian Xia , Galvin Khara , Ben Glocker

Building large-scale datasets for training code-switching language models is challenging and very expensive. To alleviate this problem using parallel corpus has been a major workaround. However, existing solutions use linguistic constraints…

计算与语言 · 计算机科学 2018-10-31 Genta Indra Winata , Andrea Madotto , Chien-Sheng Wu , Pascale Fung

Generative models have been showing potential for producing data in mass. This study explores the enhancement of clinical natural language processing performance by utilizing synthetic data generated from advanced language models. Promising…