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Personalization in Information Retrieval (IR) is a topic studied by the research community since a long time. However, there is still a lack of datasets to conduct large-scale evaluations of personalized IR; this is mainly due to the fact…

信息检索 · 计算机科学 2024-10-30 Marco Braga , Pranav Kasela , Alessandro Raganato , Gabriella Pasi

Graph neural networks (GNNs) have emerged as effective approaches for graph analysis, especially in the scenario of semi-supervised learning. Despite its success, GNN often suffers from over-smoothing and over-fitting problems, which…

机器学习 · 计算机科学 2020-11-25 Zhao Li , Yixin Liu , Zhen Zhang , Shirui Pan , Jianliang Gao , Jiajun Bu

Synthetic data becomes crucial for large language model training, but its effectiveness is highly inconsistent. We provide an information-theoretic account of this inconsistency: synthetic data improves a model only when the…

机器学习 · 计算机科学 2026-05-19 Hanyu Li , Zhengqi Sun , Xiaotie Deng

Large language models (LLMs) have shown promise in synthetic tabular data generation, yet existing methods struggle to preserve complex feature dependencies, particularly among categorical variables. This work introduces a…

机器学习 · 计算机科学 2025-05-07 Andrey Sidorenko

Machine learning (ML) holds great promise for clinical applications but is often hindered by limited access to high-quality data due to privacy concerns, high costs, and long timelines associated with clinical trials. While large language…

计算与语言 · 计算机科学 2026-03-27 Zerui Xu , Fang Wu , Yingzhou Lu , Yuanyuan Zhang , Yue Zhao

Despite the rapid progress of large language models (LLMs), their task performance remains sensitive to prompt design. Recent studies have explored leveraging the LLM itself as an optimizer to identify optimal prompts that maximize task…

计算与语言 · 计算机科学 2024-12-03 Xuanchang Zhang , Zhuosheng Zhang , Hai Zhao

With the advent of Transformers, large language models (LLMs) have saturated well-known NLP benchmarks and leaderboards with high aggregate performance. However, many times these models systematically fail on tail data or rare groups not…

计算与语言 · 计算机科学 2022-10-13 Nazneen Rajani , Weixin Liang , Lingjiao Chen , Meg Mitchell , James Zou

Label noise is emerging as a pressing issue in sound event classification. This arises as we move towards larger datasets that are difficult to annotate manually, but it is even more severe if datasets are collected automatically from…

声音 · 计算机科学 2019-10-29 Eduardo Fonseca , Frederic Font , Xavier Serra

Classifying patents by their relevance to the UN Sustainable Development Goals (SDGs) is crucial for tracking how innovation addresses global challenges. However, the absence of a large, labeled dataset limits the use of supervised…

计算与语言 · 计算机科学 2025-09-12 Grazia Sveva Ascione , Nicolò Tamagnone

Sound event detection is a challenging task, especially for scenes with multiple simultaneous events. While event classification methods tend to be fairly accurate, event localization presents additional challenges, especially when large…

音频与语音处理 · 电气工程与系统科学 2018-11-12 Sandeep Kothinti , Keisuke Imoto , Debmalya Chakrabarty , Gregory Sell , Shinji Watanabe , Mounya Elhilali

Large language models (LLMs) have enhanced our ability to rapidly analyze and classify unstructured natural language data. However, concerns regarding cost, network limitations, and security constraints have posed challenges for their…

机器学习 · 计算机科学 2024-11-05 David Farr , Nico Manzonelli , Iain Cruickshank , Jevin West

Graph representation learning is a fundamental research issue in various domains of applications, of which the inductive learning problem is particularly challenging as it requires models to generalize to unseen graph structures during…

机器学习 · 计算机科学 2024-03-27 Hanxuan Yang , Zhaoxin Yu , Qingchao Kong , Wei Liu , Wenji Mao

Scarcity of labeled data is a bottleneck for supervised learning models. A paradigm that has evolved for dealing with this problem is data programming. An existing data programming paradigm allows human supervision to be provided as a set…

机器学习 · 计算机科学 2019-11-25 Oishik Chatterjee , Ganesh Ramakrishnan , Sunita Sarawagi

Data scarcity and class imbalance are persistent challenges in training robust NLP models, especially in specialized domains or low-resource settings. We propose a novel technique, SMOTExT, that adapts the idea of Synthetic Minority…

计算与语言 · 计算机科学 2025-05-20 Mateusz Bystroński , Mikołaj Hołysz , Grzegorz Piotrowski , Nitesh V. Chawla , Tomasz Kajdanowicz

Deep learning has significantly advanced building segmentation in remote sensing, yet models struggle to generalize on data of diverse geographic regions due to variations in city layouts and the distribution of building types, sizes and…

计算机视觉与模式识别 · 计算机科学 2025-07-23 Shuang Song , Yang Tang , Rongjun Qin

In class-incremental semantic segmentation, we have no access to the labeled data of previous tasks. Therefore, when incrementally learning new classes, deep neural networks suffer from catastrophic forgetting of previously learned…

计算机视觉与模式识别 · 计算机科学 2022-03-14 Lu Yu , Xialei Liu , Joost van de Weijer

With the release of GPT-4V(O), its use in generating pseudo labels for multi-modality tasks has gained significant popularity. However, it is still a secret how to build such advanced models from its base large language models (LLMs). This…

人工智能 · 计算机科学 2024-09-26 Mengchen Liu , Qixiu Li , Dongdong Chen , Dong Chen , Jianmin Bao , Yunsheng Li

Visual program synthesis is a promising approach to exploit the reasoning abilities of large language models for compositional computer vision tasks. Previous work has used few-shot prompting with frozen LLMs to synthesize visual programs.…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Zaid Khan , Vijay Kumar BG , Samuel Schulter , Yun Fu , Manmohan Chandraker

The task of multimodal relation extraction has attracted significant research attention, but progress is constrained by the scarcity of available training data. One natural thought is to extend existing datasets with cross-modal generative…

人工智能 · 计算机科学 2023-12-07 Zilin Du , Haoxin Li , Xu Guo , Boyang Li

Training models on synthetic data has emerged as an increasingly important strategy for improving the performance of generative AI. This approach is particularly helpful for large multimodal models (LMMs) due to the relative scarcity of…

人工智能 · 计算机科学 2026-01-13 Gabriela Ben Melech Stan , Estelle Aflalo , Avinash Madasu , Vasudev Lal , Phillip Howard