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Visual prompting (VP) is an emerging parameter-efficient fine-tuning approach to adapting pre-trained vision models to solve various downstream image-classification tasks. However, there has hitherto been little systematic study of the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Hsi-Ai Tsao , Lei Hsiung , Pin-Yu Chen , Sijia Liu , Tsung-Yi Ho

Text matching is a fundamental technique in both information retrieval and natural language processing. Text matching tasks share the same paradigm that determines the relationship between two given texts. The relationships vary from task…

Information Retrieval · Computer Science 2022-08-23 Shicheng Xu , Liang Pang , Huawei Shen , Xueqi Cheng

In this paper, a novel learning paradigm is presented to automatically identify groups of informative and correlated features from very high dimensions. Specifically, we explicitly incorporate correlation measures as constraints and then…

Machine Learning · Computer Science 2012-07-03 Yiteng Zhai , Mingkui Tan , Ivor Tsang , Yew Soon Ong

Feature selection methods have an important role on the readability of data and the reduction of complexity of learning algorithms. In recent years, a variety of efforts are investigated on feature selection problems based on unsupervised…

Machine Learning · Computer Science 2019-12-12 Mohsen Ghassemi Parsa , Hadi Zare , Mehdi Ghatee

Prompt engineering is crucial for effective interaction with generative artificial intelligence systems, yet existing optimisation methods often operate over an unstructured and vast prompt space, leading to high computational costs and…

Artificial Intelligence · Computer Science 2026-05-15 Devika Prasad , Luke Gerschwitz , Tong Li , Henry Xiao , Anjin Liu , Coco Wu , Anna Leontjeva , Luiz Pizzato

Prompt optimization and fine-tuning are two major approaches to improve the performance of Large Language Models (LLMs). They enhance the capabilities of LLMs from complementary perspectives: the former through explicit natural language,…

Computation and Language · Computer Science 2026-03-03 Xiaohe Bo , Rui Li , Zexu Sun , Quanyu Dai , Zeyu Zhang , Zihang Tian , Xu Chen , Zhenhua Dong

Prompt learning has emerged as a valuable technique in enhancing vision-language models (VLMs) such as CLIP for downstream tasks in specific domains. Existing work mainly focuses on designing various learning forms of prompts, neglecting…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Zheng Li , Xiang Li , Xinyi Fu , Xin Zhang , Weiqiang Wang , Shuo Chen , Jian Yang

We introduce \textit{Feedback Descent}, a framework that optimizes text artifacts -- prompts, code, and molecules -- through structured textual feedback, rather than relying solely on scalar rewards. By preserving detailed critiques instead…

Machine Learning · Computer Science 2026-01-01 Yoonho Lee , Joseph Boen , Chelsea Finn

Prompting, which casts downstream applications as language modeling tasks, has shown to be sample efficient compared to standard fine-tuning with pre-trained models. However, one pitfall of prompting is the need of manually-designed…

Computation and Language · Computer Science 2022-09-21 Zichun Yu , Tianyu Gao , Zhengyan Zhang , Yankai Lin , Zhiyuan Liu , Maosong Sun , Jie Zhou

Understanding what features are encoded by learned directions in LLM activation space requires identifying inputs that strongly activate them. Feature visualization, which optimizes inputs to maximally activate a target direction, offers an…

Machine Learning · Computer Science 2026-02-23 João N. Cardoso , Arlindo L. Oliveira , Bruno Martins

Schema matching is the process of identifying correspondences between the elements of two given schemata, essential for database management systems, data integration, and data warehousing. For datasets across different scenarios, the…

Databases · Computer Science 2025-03-07 Longyu Feng , Huahang Li , Chen Jason Zhang

Prompt engineering is a challenging and important task due to the high sensitivity of Large Language Models (LLMs) to the given prompt and the inherent ambiguity of a textual task instruction. Automatic prompt engineering is essential to…

Computation and Language · Computer Science 2024-02-06 Elad Levi , Eli Brosh , Matan Friedmann

Prompt optimization improves language models without updating their weights by searching for a better system prompt, but its effectiveness varies widely across tasks. We study what makes a task amenable to prompt optimization. We show that…

Machine Learning · Computer Science 2026-04-13 Zhaolin Gao , Yu , Wang , Bo Liu , Thorsten Joachims , Kianté Brantley , Wen Sun

Visual text recognition is undoubtedly one of the most extensively researched topics in computer vision. Great progress have been made to date, with the latest models starting to focus on the more practical "in-the-wild" setting. However, a…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Ayan Kumar Bhunia , Pinaki Nath Chowdhury , Aneeshan Sain , Yi-Zhe Song

Text classification is a fundamental problem in the field of natural language processing. Text classification mainly focuses on giving more importance to all the relevant features that help classify the textual data. Apart from these, the…

Computation and Language · Computer Science 2021-01-25 Suman Dowlagar , Radhika Mamidi

As one of the fundamental tasks in text analysis, phrase mining aims at extracting quality phrases from a text corpus. Phrase mining is important in various tasks such as information extraction/retrieval, taxonomy construction, and topic…

Computation and Language · Computer Science 2017-03-14 Jingbo Shang , Jialu Liu , Meng Jiang , Xiang Ren , Clare R Voss , Jiawei Han

Prompts are the interface for eliciting the capabilities of large language models (LLMs). Understanding their structure and components is critical for analyzing LLM behavior and optimizing performance. However, the field lacks a…

Computation and Language · Computer Science 2026-01-27 Sullam Jeoung , Yueyan Chen , Yi Zhang , Shuai Wang , Haibo Ding , Lin Lee Cheong

LLMs have gained immense popularity among researchers and the general public for its impressive capabilities on a variety of tasks. Notably, the efficacy of LLMs remains significantly dependent on the quality and structure of the input…

Machine Learning · Computer Science 2025-04-08 Wenliang Zheng , Sarkar Snigdha Sarathi Das , Yusen Zhang , Rui Zhang

Feature Transformation (FT) crafts new features from original ones via mathematical operations to enhance dataset expressiveness for downstream models. However, existing FT methods exhibit critical limitations: discrete search struggles…

Machine Learning · Computer Science 2025-05-22 Nanxu Gong , Zijun Li , Sixun Dong , Haoyue Bai , Wangyang Ying , Xinyuan Wang , Yanjie Fu

Conditional natural language generation methods often require either expensive fine-tuning or training a large language model from scratch. Both are unlikely to lead to good results without a substantial amount of data and computational…

Computation and Language · Computer Science 2023-08-10 Yarik Menchaca Resendiz , Roman Klinger