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Being an unsupervised machine learning and data mining technique, biclustering and its multimodal extensions are becoming popular tools for analysing object-attribute data in different domains. Apart from conventional clustering techniques,…

人工智能 · 计算机科学 2017-02-20 Dmitry I. Ignatov , Bruce W. Watson

Classification of cluster variables in cluster algebras (in particular, Grassmannian cluster algebras) is an important problem, which has direct application to computations of scattering amplitudes in physics. In this paper, we apply the…

高能物理 - 理论 · 物理学 2026-02-16 Man-Wai Cheung , Pierre-Philippe Dechant , Yang-Hui He , Elli Heyes , Edward Hirst , Jian-Rong Li

Clustering, a fundamental activity in unsupervised learning, is notoriously difficult when the feature space is high-dimensional. Fortunately, in many realistic scenarios, only a handful of features are relevant in distinguishing clusters.…

机器学习 · 统计学 2020-10-23 Zhiyue Zhang , Kenneth Lange , Jason Xu

Multiple datasets containing different types of features may be available for a given task. For instance, users' profiles can be used to group users for recommendation systems. In addition, a model can also use users' historical behaviors…

机器学习 · 计算机科学 2016-05-10 Weixiang Shao , Xiaoxiao Shi , Philip S. Yu

Model-based clustering is widely-used in a variety of application areas. However, fundamental concerns remain about robustness. In particular, results can be sensitive to the choice of kernel representing the within-cluster data density.…

机器学习 · 统计学 2019-06-27 Leo L Duan , David B Dunson

Sentence embedding methods offer a powerful approach for working with short textual constructs or sequences of words. By representing sentences as dense numerical vectors, many natural language processing (NLP) applications have improved…

计算与语言 · 计算机科学 2021-10-05 Yuan An , Alexander Kalinowski , Jane Greenberg

A repetition is a response that repeats words in the previous speaker's utterance in a dialogue. Repetitions are essential in communication to build trust with others, as investigated in linguistic studies. In this work, we focus on…

计算与语言 · 计算机科学 2022-07-05 Toshiki Kawamoto , Hidetaka Kamigaito , Kotaro Funakoshi , Manabu Okumura

An important issue in clustering concerns the avoidance of false positives while searching for clusters. This work addressed this problem considering agglomerative methods, namely single, average, median, complete, centroid and Ward's…

机器学习 · 计算机科学 2020-06-30 Eric K. Tokuda , Cesar H. Comin , Luciano da F. Costa

Clustering is a fundamental data mining tool that aims to divide data into groups of similar items. Generally, intuition about clustering reflects the ideal case -- exact data sets endowed with flawless dissimilarity between individual…

机器学习 · 计算机科学 2016-01-25 Margareta Ackerman , Jarrod Moore

Extracting and identifying latent topics in large text corpora has gained increasing importance in Natural Language Processing (NLP). Most models, whether probabilistic models similar to Latent Dirichlet Allocation (LDA) or neural topic…

计算与语言 · 计算机科学 2023-03-31 Anton Thielmann , Quentin Seifert , Arik Reuter , Elisabeth Bergherr , Benjamin Säfken

Recent research has revealed that machine learning models have a tendency to leverage spurious correlations that exist in the training set but may not hold true in general circumstances. For instance, a sentiment classifier may erroneously…

计算与语言 · 计算机科学 2024-02-06 Oscar Chew , Hsuan-Tien Lin , Kai-Wei Chang , Kuan-Hao Huang

It has always been an important yet challenging problem to control language models to avoid generating texts with undesirable attributes, such as toxic language and unnatural repetition. We introduce Click for controllable text generation,…

计算与语言 · 计算机科学 2023-06-07 Chujie Zheng , Pei Ke , Zheng Zhang , Minlie Huang

Clustering attempts to partition data instances into several distinctive groups, while the similarities among data belonging to the common partition can be principally reserved. Furthermore, incomplete data frequently occurs in many…

机器学习 · 计算机科学 2022-08-30 Miao Cheng , Xinge You

$K$-means, a simple and effective clustering algorithm, is one of the most widely used algorithms in multimedia and computer vision community. Traditional $k$-means is an iterative algorithm---in each iteration new cluster centers are…

计算机视觉与模式识别 · 计算机科学 2013-12-12 Jingdong Wang , Jing Wang , Qifa Ke , Gang Zeng , Shipeng Li

Model-based clustering of moderate or large dimensional data is notoriously difficult. We propose a model for simultaneous dimensionality reduction and clustering by assuming a mixture model for a set of latent scores, which are then linked…

统计方法学 · 统计学 2024-06-04 Lorenzo Ghilotti , Mario Beraha , Alessandra Guglielmi

Generative machine reading comprehension (MRC) requires a model to generate well-formed answers. For this type of MRC, answer generation method is crucial to the model performance. However, generative models, which are supposed to be the…

计算与语言 · 计算机科学 2020-12-29 Junjie Yang , Zhuosheng Zhang , Hai Zhao

Clustering is a popular form of unsupervised learning for geometric data. Unfortunately, many clustering algorithms lead to cluster assignments that are hard to explain, partially because they depend on all the features of the data in a…

机器学习 · 计算机科学 2020-09-23 Sanjoy Dasgupta , Nave Frost , Michal Moshkovitz , Cyrus Rashtchian

Clustering is an unsupervised technique of Data Mining. It means grouping similar objects together and separating the dissimilar ones. Each object in the data set is assigned a class label in the clustering process using a distance measure.…

信息检索 · 计算机科学 2011-10-13 Parul Agarwal , M. Afshar Alam , Ranjit Biswas

Machine learning has become a central research area, with increasing attention devoted to explainable clustering, also known as conceptual clustering, which is a knowledge-driven unsupervised learning paradigm that partitions data into…

人工智能 · 计算机科学 2026-04-15 Motaz Ben Hassine , Saïd Jabbour

We consider the problem of model-based clustering in the presence of many correlated, mixed continuous and discrete variables, some of which may have missing values. Discrete variables are treated with a latent continuous variable approach…