نتایج جستجو برای: instance clustering

تعداد نتایج: 178323  

2005
Yllias Chali Soufiane Noureddine

Document clustering has many uses in natural language tools and applications. For instance, summarizing sets of documents that all describe the same event requires first identifying and grouping those documents talking about the same event. Document clustering involves dividing a set of documents into non-overlapping clusters. In this paper, we present two document clustering algorithms: groupi...

Journal: :Pattern Recognition 2023

Deep clustering has attracted increasing attention in recent years due to its capability of joint representation learning and via deep neural networks. In latest developments, the contrastive emerged as an effective technique substantially enhance performance. However, existing based algorithms mostly focus on some carefully-designed augmentations (often with limited transformations preserve st...

Journal: :Behavioral and Brain Sciences 2000

2009
Ian Davidson

The area of clustering with constraints makes use of hints or advice in the form of constraints to aid or bias the clustering process. The most prevalent form of advice are conjunctions of pair-wise instance level constraints of the form must-link (ML) and cannot-link (CL) which state that pairs of instances should be in the same or different clusters respectively. Given a set of points P to cl...

2006
Colette Johnen Le Huy Nguyen

Clustering means partitioning nodes into groups called clusters, providing the network with a hierarchical organization. Overall, clustering increases the scalability of network management. For instance, clustering-based routing reduces the amount of routing information propagated in the network; members of a cluster can share resources; and clustering can be used to reduce the amount of inform...

2004
Amruta Purandare Ted Pedersen

This paper systematically compares unsupervised word sense discrimination techniques that cluster instances of a target word that occur in raw text using both vector and similarity spaces. The context of each instance is represented as a vector in a high dimensional feature space. Discrimination is achieved by clustering these context vectors directly in vector space and also by finding pairwis...

2018
Son Mai Sihem Amer-Yahia Ahlame Douzal Chouakria

We introduce a novel interactive framework to handle both instance-level and temporal smoothness constraints for clustering large temporal data. It consists of a constrained clustering algorithm which optimizes the clustering quality, constraint violation and the historical cost between consecutive data snapshots. At the center of our framework is a simple yet effective active learning techniqu...

2011
Barnabás Póczos Liang Xiong Jeff G. Schneider

Low-dimensional embedding, manifold learning, clustering, classification, and anomaly detection are among the most important problems in machine learning. The existing methods usually consider the case when each instance has a fixed, finite-dimensional feature representation. Here we consider a different setting. We assume that each instance corresponds to a continuous probability distribution....

2009
Rayner Alfred

Problem statement: Handling numerical data stored in a relational database has been performed differently from handling those numerical data stored in a single table due to the multiple occurrences (one-to-many association) of an individual record in the non-target table and non-determinate relations between tables. Numbers in Multi-Relational Data Mining (MRDM) were often discretized, after co...

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