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Dense retrieval is a crucial task in Information Retrieval (IR), serving as the basis for downstream tasks such as re-ranking and augmenting generation. Recently, large language models (LLMs) have demonstrated impressive semantic…

信息检索 · 计算机科学 2025-08-20 Hengran Zhang , Keping Bi , Jiafeng Guo , Xiaojie Sun , Shihao Liu , Daiting Shi , Dawei Yin , Xueqi Cheng

The LLMSR@XLLM25 formulates a low-resource structural reasoning task that challenges LLMs to generate interpretable, step-by-step rationales with minimal labeled data. We present Less is More, the third-place winning approach in the…

计算与语言 · 计算机科学 2025-05-14 Jiahao Yuan , Xingzhe Sun , Xing Yu , Jingwen Wang , Dehui Du , Zhiqing Cui , Zixiang Di

Sentence embedding is essential for many NLP tasks, with contrastive learning methods achieving strong performance using annotated datasets like NLI. Yet, the reliance on manual labels limits scalability. Recent studies leverage large…

计算与语言 · 计算机科学 2025-06-05 Liyang He , Chenglong Liu , Rui Li , Zhenya Huang , Shulan Ruan , Jun Zhou , Enhong Chen

The conventional success of textual classification relies on annotated data, and the new paradigm of pre-trained language models (PLMs) still requires a few labeled data for downstream tasks. However, in real-world applications, label noise…

计算与语言 · 计算机科学 2022-10-14 Dan Qiao , Chenchen Dai , Yuyang Ding , Juntao Li , Qiang Chen , Wenliang Chen , Min Zhang

Language-Assisted Image Clustering (LAIC) augments the input images with additional texts with the help of vision-language models (VLMs) to promote clustering performance. Despite recent progress, existing LAIC methods often overlook two…

机器学习 · 计算机科学 2026-03-26 Jun Ma , Xu Zhang , Zhengxing Jiao , Yaxin Hou , Hui Liu , Junhui Hou , Yuheng Jia

There is often a mixture of very frequent labels and very infrequent labels in multi-label datatsets. This variation in label frequency, a type class imbalance, creates a significant challenge for building efficient multi-label…

机器学习 · 计算机科学 2021-09-28 Payel Sadhukhan , Arjun Pakrashi , Sarbani Palit , Brian Mac Namee

Automatic tagging of knowledge points for practice problems is the basis for managing question bases and improving the automation and intelligence of education. Therefore, it is of great practical significance to study the automatic tagging…

计算与语言 · 计算机科学 2022-08-23 Xiaolu Wang , Ziqi Ding , Liangyu Chen

Learning from noisy labels (LNL) is a challenge that arises in many real-world scenarios where collected training data can contain incorrect or corrupted labels. Most existing solutions identify noisy labels and adopt active learning to…

机器学习 · 计算机科学 2025-04-07 Bo Yuan , Yulin Chen , Yin Zhang , Wei Jiang

We propose a novel zero-shot document ranking approach based on Large Language Models (LLMs): the Setwise prompting approach. Our approach complements existing prompting approaches for LLM-based zero-shot ranking: Pointwise, Pairwise, and…

信息检索 · 计算机科学 2024-05-31 Shengyao Zhuang , Honglei Zhuang , Bevan Koopman , Guido Zuccon

Missing values are pervasive in real-world tabular data and can significantly impair downstream analysis. Imputing them is especially challenging in text-rich tables, where dependencies are implicit, complex, and dispersed across long…

数据库 · 计算机科学 2026-05-12 Soroush Omidvartehrani , Davood Rafiei

This study addresses the challenges of multi-label text classification. The difficulties arise from imbalanced data sets, varied text lengths, and numerous subjective feature labels. Existing solutions include traditional machine learning…

计算与语言 · 计算机科学 2024-05-22 Hongren Wang

In enterprise settings, efficiently retrieving relevant information from large and complex knowledge bases is essential for operational productivity and informed decision-making. This research presents a systematic empirical framework for…

The problem of searching for experts in a given academic field is hugely important in both industry and academia. We study exactly this issue with respect to a database of authors and their publications. The idea is to use Latent Semantic…

社会与信息网络 · 计算机科学 2013-11-26 Charanpal Dhanjal , Stéphan Clémençon

The growing interest in machine learning problems over graphs with additional node information such as texts, images, or labels has popularized methods that require the costly operation of processing the entire graph. Yet, little effort has…

机器学习 · 计算机科学 2024-03-05 Artur Back de Luca , Kimon Fountoulakis , Shenghao Yang

We look at the long-standing problem of segmenting unlabeled speech into word-like segments and clustering these into a lexicon. Several previous methods use a scoring model coupled with dynamic programming to find an optimal segmentation.…

音频与语音处理 · 电气工程与系统科学 2025-01-14 Simon Malan , Benjamin van Niekerk , Herman Kamper

Retrieval-augmented generation (RAG) systems rely on accurate document retrieval to ground large language models (LLMs) in external knowledge, yet retrieval quality often degrades in corpora where topics overlap and thematic variation is…

信息检索 · 计算机科学 2026-01-06 Rodrigo Kataishi

Rich textual and topological information of textual graphs need to be modeled in real-world applications such as webpages, e-commerce, and academic articles. Practitioners have been long following the path of adopting a shallow text encoder…

计算与语言 · 计算机科学 2024-07-25 Yun Zhu , Yaoke Wang , Haizhou Shi , Siliang Tang

Clustering is an unsupervised machine learning method grouping data samples into clusters of similar objects. In practice, clustering has been used in numerous applications such as banking customers profiling, document retrieval, image…

计算机视觉与模式识别 · 计算机科学 2021-07-06 Raphaël Couturier , Hassan N. Noura , Ola Salman , Abderrahmane Sider

As web agents (e.g., Deep Research) routinely consume massive volumes of web pages to gather and analyze information, LLM context management -- under large token budgets and low signal density -- emerges as a foundational, high-importance,…

信息检索 · 计算机科学 2025-12-09 Yihan Chen , Benfeng Xu , Xiaorui Wang , Zhendong Mao

Importance of document clustering is now widely acknowledged by researchers for better management, smart navigation, efficient filtering, and concise summarization of large collection of documents like World Wide Web (WWW). The next…

信息检索 · 计算机科学 2011-12-30 Muhammad Rafi , M. Shahid Shaikh , Amir Farooq
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