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Feature transformation aims to reconstruct the feature space of raw features to enhance the performance of downstream models. However, the exponential growth in the combinations of features and operations poses a challenge, making it…

机器学习 · 计算机科学 2024-12-19 Nanxu Gong , Chandan K. Reddy , Wangyang Ying , Haifeng Chen , Yanjie Fu

Synthetic data has been proposed as a solution to address the issue of high-quality data scarcity in the training of large language models (LLMs). Studies have shown that synthetic data can effectively improve the performance of LLMs on…

计算与语言 · 计算机科学 2024-06-19 Jie Chen , Yupeng Zhang , Bingning Wang , Wayne Xin Zhao , Ji-Rong Wen , Weipeng Chen

Generating a synthetic population that is both feasible and diverse is crucial for ensuring the validity of downstream activity schedule simulation in activity-based models (ABMs). While deep generative models (DGMs), such as variational…

机器学习 · 计算机科学 2025-05-08 Sung Yoo Lim , Hyunsoo Yun , Prateek Bansal , Dong-Kyu Kim , Eui-Jin Kim

Large language models (LLMs) have been recently leveraged as training data generators for various natural language processing (NLP) tasks. While previous research has explored different approaches to training models using generated data,…

计算与语言 · 计算机科学 2023-10-19 Yue Yu , Yuchen Zhuang , Jieyu Zhang , Yu Meng , Alexander Ratner , Ranjay Krishna , Jiaming Shen , Chao Zhang

Understanding data visualizations like charts and plots requires reasoning about both visual elements and numerics. Although strong in extractive questions, current chart visual question answering (chart VQA) models suffer on complex…

计算机视觉与模式识别 · 计算机科学 2024-03-29 Zhuowan Li , Bhavan Jasani , Peng Tang , Shabnam Ghadar

Ensuring the generalisability of clinical machine learning (ML) models across diverse healthcare settings remains a significant challenge due to variability in patient demographics, disease prevalence, and institutional practices. Existing…

机器学习 · 计算机科学 2025-04-30 Bradley Segal , Joshua Fieggen , David Clifton , Lei Clifton

Large language models (LLMs) have shown impressive performance on general-purpose tasks, yet adapting them to specific domains remains challenging due to the scarcity of high-quality domain data. Existing data synthesis tools often struggle…

计算与语言 · 计算机科学 2025-07-08 Ziyang Miao , Qiyu Sun , Jingyuan Wang , Yuchen Gong , Yaowei Zheng , Shiqi Li , Richong Zhang

High-quality labeled datasets are fundamental for training and evaluating machine learning models, yet domains such as healthcare and Requirements Engineering (RE) face persistent barriers due to data scarcity, privacy constraints, or…

软件工程 · 计算机科学 2026-03-31 Abdelkarim El-Hajjami , Camille Salinesi

Large language models (LLMs) effectively generate fluent text when the target output follows natural language patterns. However, structured prediction tasks confine the output format to a limited ontology, causing even very large models to…

计算与语言 · 计算机科学 2023-10-19 Derek Chen , Celine Lee , Yunan Lu , Domenic Rosati , Zhou Yu

Automated fact-checking benchmarks have largely ignored the challenge of verifying claims against real-world, high-volume structured data, instead focusing on small, curated tables. We introduce a new large-scale, multilingual dataset to…

计算与语言 · 计算机科学 2026-01-27 Jacob Devasier , Akshith Putta , Qing Wang , Alankrit Moses , Chengkai Li

This paper presents a novel approach to represent enterprise web application structures using Large Language Models (LLMs) to enable intelligent quality engineering at scale. We introduce a hierarchical representation methodology that…

人工智能 · 计算机科学 2025-01-14 Zaber Al Hassan Ayon , Gulam Husain , Roshankumar Bisoi , Waliur Rahman , Dr Tom Osborn

In the era of data-driven decision-making, accurate table-level representations and efficient table recommendation systems are becoming increasingly crucial for improving table management, discovery, and analysis. However, existing…

机器学习 · 计算机科学 2024-11-07 Dayu Yang , Natawut Monaikul , Amanda Ding , Bozhao Tan , Kishore Mosaliganti , Giri Iyengar

In e-commerce, accurately extracting product attribute values from multimodal data is crucial for improving user experience and operational efficiency of retailers. However, previous approaches to multimodal attribute value extraction often…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Henry Peng Zou , Gavin Heqing Yu , Ziwei Fan , Dan Bu , Han Liu , Peng Dai , Dongmei Jia , Cornelia Caragea

Large Language Models (LLMs) are increasingly integrated into critical decision-making pipelines, a trend that raises the demand for robust and automated data analysis. Current approaches to dataset risk analysis are limited to manual…

人工智能 · 计算机科学 2026-05-28 Panteleimon Rodis

Enabling farmers to access accurate agriculture-related information in their native languages in a timely manner is crucial for the success of the agriculture field. Publicly available general-purpose Large Language Models (LLMs) typically…

Large language models (LLMs) have significantly benefited from training on diverse, high-quality task-specific data, leading to impressive performance across a range of downstream applications. Current methods often rely on human-annotated…

计算与语言 · 计算机科学 2024-10-23 Qintong Li , Jiahui Gao , Sheng Wang , Renjie Pi , Xueliang Zhao , Chuan Wu , Xin Jiang , Zhenguo Li , Lingpeng Kong

Product offers on e-commerce websites often consist of a product title and a textual product description. In order to enable features such as faceted product search or to generate product comparison tables, it is necessary to extract…

计算与语言 · 计算机科学 2024-09-04 Alexander Brinkmann , Nick Baumann , Christian Bizer

Automatic extraction of product attributes from their textual descriptions is essential for online shopper experience. One inherent challenge of this task is the emerging nature of e-commerce products -- we see new types of products with…

计算与语言 · 计算机科学 2022-05-02 Xinyang Zhang , Chenwei Zhang , Xian Li , Xin Luna Dong , Jingbo Shang , Christos Faloutsos , Jiawei Han

Synthetic data generation has emerged as an invaluable solution in scenarios where real-world data collection and usage are limited by cost and scarcity. Large language models (LLMs) have demonstrated remarkable capabilities in producing…

机器学习 · 计算机科学 2025-07-22 Anh Nguyen , Sam Schafft , Nicholas Hale , John Alfaro

Complementary product recommendation, which aims to suggest items that are used together to enhance customer value, is a crucial yet challenging task in e-commerce. While existing graph neural network (GNN) approaches have made significant…

信息检索 · 计算机科学 2025-12-02 Zekun Xu , Yudi Zhang