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Contrastive learning has gained significant attention in short text clustering, yet it has an inherent drawback of mistakenly identifying samples from the same category as negatives and then separating them in the feature space (false…

机器学习 · 计算机科学 2026-03-16 Zhihao Yao

Text clustering, as one of the most fundamental challenges in unsupervised learning, aims at grouping semantically similar text segments without relying on human annotations. With the rapid development of deep learning, deep clustering has…

计算与语言 · 计算机科学 2023-04-24 Mingjun Zhao , Mengzhen Wang , Yinglong Ma , Di Niu , Haijiang Wu

Short text clustering has gained significant attention in the data mining community. However, the limited valuable information contained in short texts often leads to low-discriminative representations, increasing the difficulty of…

机器学习 · 计算机科学 2026-03-16 Zhihao Yao

Short text clustering is challenging since it takes imbalanced and noisy data as inputs. Existing approaches cannot solve this problem well, since (1) they are prone to obtain degenerate solutions especially on heavy imbalanced datasets,…

计算与语言 · 计算机科学 2023-05-29 Xiaolin Zheng , Mengling Hu , Weiming Liu , Chaochao Chen , Xinting Liao

We propose In-Context Clustering (ICC), a flexible LLM-based procedure for clustering data from diverse distributions. Unlike traditional clustering algorithms constrained by predefined similarity measures, ICC flexibly captures complex…

机器学习 · 计算机科学 2025-10-10 Ying Wang , Mengye Ren , Andrew Gordon Wilson

The target of image-text clustering (ITC) is to find correct clusters by integrating complementary and consistent information of multi-modalities for these heterogeneous samples. However, the majority of current studies analyse ITC on the…

人工智能 · 计算机科学 2022-12-01 Dongjin Guo , Xiaoming Su , Jiatai Wang , Limin Liu , Zhiyong Pei , Zhiwei Xu

The enhancement of unsupervised learning of sentence representations has been significantly achieved by the utility of contrastive learning. This approach clusters the augmented positive instance with the anchor instance to create a desired…

计算与语言 · 计算机科学 2023-10-11 Qingfa Xiao , Shuangyin Li , Lei Chen

In-context learning enables language models (LM) to adapt to downstream data or tasks by incorporating few samples as demonstrations within the prompts. It offers strong performance without the expense of fine-tuning. However, the…

计算与语言 · 计算机科学 2024-10-15 Jian Gu , Aldeida Aleti , Chunyang Chen , Hongyu Zhang

In this paper, we propose a novel, effective and simpler end-to-end image clustering auto-encoder algorithm: ICAE. The algorithm uses PEDCC (Predefined Evenly-Distributed Class Centroids) as the clustering centers, which ensures the…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Qiuyu Zhu , Zhengyong Wang

Contrastive Language Image Pre-training (CLIP) has recently demonstrated success across various tasks due to superior feature representation empowered by image-text contrastive learning. However, the instance discrimination method used by…

计算机视觉与模式识别 · 计算机科学 2024-11-07 Xiang An , Kaicheng Yang , Xiangzi Dai , Ziyong Feng , Jiankang Deng

Unsupervised clustering aims at discovering the semantic categories of data according to some distance measured in the representation space. However, different categories often overlap with each other in the representation space at the…

Image clustering is an important and open-challenging task in computer vision. Although many methods have been proposed to solve the image clustering task, they only explore images and uncover clusters according to the image features, thus…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Shaotian Cai , Liping Qiu , Xiaojun Chen , Qin Zhang , Longteng Chen

Contrastive learning has been frequently investigated to learn effective representations for text clustering tasks. While existing contrastive learning-based text clustering methods only focus on modeling instance-wise semantic similarity…

计算与语言 · 计算机科学 2024-08-27 Qian Yong , Chen Chen , Xiabing Zhou

Effective representation learning is critical for short text clustering due to the sparse, high-dimensional and noise attributes of short text corpus. Existing pre-trained models (e.g., Word2vec and BERT) have greatly improved the…

计算与语言 · 计算机科学 2021-09-22 Hui Yin , Xiangyu Song , Shuiqiao Yang , Guangyan Huang , Jianxin Li

In task-oriented dialogue scenarios, cross-domain zero-shot slot filling plays a vital role in leveraging source domain knowledge to learn a model with high generalization ability in unknown target domain where annotated data is…

人工智能 · 计算机科学 2023-10-23 Junwen Zhang , Yin Zhang

Intersection over Union (IoU) losses are surrogates that directly optimize the Jaccard index. Leveraging IoU losses as part of the loss function have demonstrated superior performance in semantic segmentation tasks compared to optimizing…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Zifu Wang , Xuefei Ning , Matthew B. Blaschko

Open-world continual learning (OWCL) adapts to sequential tasks with open samples, learning knowledge incrementally while preventing forgetting. However, existing OWCL still requires a large amount of labeled data for training, which is…

机器学习 · 计算机科学 2025-07-29 Yujie Li , Xiangkun Wang , Xin Yang , Marcello Bonsangue , Junbo Zhang , Tianrui Li

While contrastive multi-view clustering has achieved remarkable success, it implicitly assumes balanced class distribution. However, real-world multi-view data primarily exhibits class imbalance distribution. Consequently, existing methods…

机器学习 · 计算机科学 2025-06-17 Xuqian Xue , Yiming Lei , Qi Cai , Hongming Shan , Junping Zhang

Diffusion-based text-to-image generation models have demonstrated strong performance in terms of image quality and diversity. However, they still struggle to generate images that accurately reflect the number of objects specified in the…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Joohyeon Lee , Jin-Seop Lee , Jee-Hyong Lee

Although few-shot learning and one-class classification (OCC), i.e., learning a binary classifier with data from only one class, have been separately well studied, their intersection remains rather unexplored. Our work addresses the…

机器学习 · 计算机科学 2021-02-12 Ahmed Frikha , Denis Krompaß , Hans-Georg Köpken , Volker Tresp
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