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Federated semi-supervised learning (FedSemi) refers to scenarios where there may be clients with fully labeled data, clients with partially labeled, and even fully unlabeled clients while preserving data privacy. However, challenges arise…

机器学习 · 计算机科学 2024-10-28 Marawan Elbatel , Hualiang Wang , Jixiang Chen , Hao Wang , Xiaomeng Li

We motivate and present feature selective anchor-free (FSAF) module, a simple and effective building block for single-shot object detectors. It can be plugged into single-shot detectors with feature pyramid structure. The FSAF module…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Chenchen Zhu , Yihui He , Marios Savvides

Large datasets with interactions between objects are common to numerous scientific fields (i.e. social science, internet, biology...). The interactions naturally define a graph and a common way to explore or summarize such dataset is graph…

应用统计 · 统计学 2009-10-13 Hugo Zanghi , Stevenn Volant , Christophe Ambroise

Matrix Factorization (MF) on large scale matrices is computationally as well as memory intensive task. Alternative convergence techniques are needed when the size of the input matrix is higher than the available memory on a Central…

机器学习 · 计算机科学 2019-01-21 Prasad G Bhavana , Vineet C Nair

Instance-level alignment is widely exploited for person re-identification, e.g. spatial alignment, latent semantic alignment and triplet alignment. This paper probes another feature alignment modality, namely cluster-level feature alignment…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Qiuyu Chen , Wei Zhang , Jianping Fan

Neural models for amortized probabilistic clustering yield samples of cluster labels given a set-structured input, while avoiding lengthy Markov chain runs and the need for explicit data likelihoods. Existing methods which label each data…

机器学习 · 计算机科学 2025-02-27 Irit Chelly , Roy Uziel , Oren Freifeld , Ari Pakman

Citation field learning is to segment a citation string into fields of interest such as author, title, and venue. Extracting such fields from citations is crucial for citation indexing, researcher profile analysis, etc. User-generated…

计算与语言 · 计算机科学 2023-12-15 Zilin Yuan , Borun Chen , Yimeng Dai , Yinghui Li , Hai-Tao Zheng , Rui Zhang

Many problems can be presented in an abstract form through a wide range of binary objects and relations which are defined over problem domain. In these problems, graphical demonstration of defined binary objects and solutions is the most…

图形学 · 计算机科学 2016-03-24 Mohammadreza Ashouri , Ali Golshani , Dara Moazzmi , Mandana Ghasemi

Spectral clustering methodologies, when extended to accommodate signed graphs, have encountered notable limitations in effectively encapsulating inherent grouping relationships. Recent findings underscore a substantial deterioration in the…

社会与信息网络 · 计算机科学 2025-01-15 Muhieddine Shebaro , Lucas Rusnak , Martin Burtscher , Jelena Tešić

Clustering is an essential technique for network analysis, with applications in a diverse range of fields. Although spectral clustering is a popular and effective method, it fails to consider higher-order structure and can perform poorly on…

社会与信息网络 · 计算机科学 2020-09-14 William George Underwood , Andrew Elliott , Mihai Cucuringu

Graph clustering is a fundamental and challenging learning task, which is conventionally approached by grouping similar vertices based on edge structure and feature similarity.In contrast to previous methods, in this paper, we investigate…

机器学习 · 计算机科学 2024-08-13 Zhixuan Duan , Zuo Wang , Fanghui Bi

With the explosive growth of multi-source data, multi-view clustering has attracted great attention in recent years. Most existing multi-view methods operate in raw feature space and heavily depend on the quality of original feature…

机器学习 · 计算机科学 2022-05-20 Liang Liu , Peng Chen , Guangchun Luo , Zhao Kang , Yonggang Luo , Sanchu Han

In this paper we propose a new approach to detect clusters in undirected graphs with attributed vertices. We incorporate structural and attribute similarities between the vertices in an augmented graph by creating additional vertices and…

机器学习 · 计算机科学 2023-02-07 Pasqua D'Ambra , Panayot S. Vassilevski , Luisa Cutillo

This paper presents a new graph-based approach that induces synsets using synonymy dictionaries and word embeddings. First, we build a weighted graph of synonyms extracted from commonly available resources, such as Wiktionary. Second, we…

计算与语言 · 计算机科学 2018-05-21 Dmitry Ustalov , Alexander Panchenko , Chris Biemann

We present three quantum algorithms for clustering graphs based on higher-order patterns, known as motif clustering. One uses a straightforward application of Grover search, the other two make use of quantum approximate counting, and all of…

量子物理 · 物理学 2023-07-05 Chris Cade , Farrokh Labib , Ido Niesen

Non-negative matrix factorization (NMF) is a popular unsupervised learning approach widely used in image clustering. However, in real-world clustering scenarios, most existing NMF methods are highly sensitive to noise corruption and are…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Jingjing Liu , Nian Wu , Xianchao Xiu , Jianhua Zhang

Current graph clustering methods emphasize individual node and edge con nections, while ignoring higher-order organization at the level of motif. Re cently, higher-order graph clustering approaches have been designed by motif based…

机器学习 · 计算机科学 2024-05-21 Ye Liu , Xuelei Lin , Yejia Chen , Reynold Cheng

An original graph clustering approach to efficient localization of error covariances is proposed within an ensemble-variational data assimilation framework. Here the localization term is very generic and refers to the idea of breaking up a…

Imbalanced data represent a distribution with more frequencies of one class (majority) than the other (minority). This phenomenon occurs across various domains, such as security, medical care and human activity. In imbalanced learning,…

机器学习 · 计算机科学 2025-03-25 Hadi Mohammadi , Ehsan Nazerfard , Mostafa Haghir Chehreghani

In this paper, we consider federated learning (FL) over a noisy fading multiple access channel (MAC), where an edge server aggregates the local models transmitted by multiple end devices through over-the-air computation (AirComp). To…

信息论 · 计算机科学 2020-11-16 Shuhao Xia , Jingyang Zhu , Yuhan Yang , Yong Zhou , Yuanming Shi , Wei Chen
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