نتایج جستجو برای: pso clustering

تعداد نتایج: 112975  

2015
Dipali Kharche

Clustering represents the large datasets by a structured well defined number of clusters or prototypes. K-Means is a useful technique to data clustering which partitions the data into K-Clusters. However, the results of k-means algorithm are based on the selection of initial seeds and converge to local optimum solution. The Swarm Intelligence (SI) is an algorithm to apply many simple agents beh...

2014
Lopamudra Dey Sanjay Chakraborty

"Clustering" the significance and application of this technique is spread over various fields. Clustering is an unsupervised process in data mining, that is why the proper evaluation of the results and measuring the compactness and separability of the clusters are important issues. The procedure of evaluating the results of a clustering algorithm is known as cluster validity measure. Different ...

2012
FENG ZHUO

This paper presents a new PSO-based optimization DBSCAN space clustering algorithm with obstacle constraints. The algorithm introduces obstacle model and simplifies two-dimensional coordinates of the cluster object coding to one-dimensional, then uses the PSO algorithm to obtain the shortest path and minimum obstacle distance. At the last stage, this paper fulfills spatial clustering based on o...

2009
Jakob R. Olesen Jorge Cordero Hernandez Yifeng Zeng

This paper presents a hybrid approach for clustering based on particle swarm optimization (PSO) and bacteria foraging algorithms (BFA). The new method AutoCPB (Auto-Clustering based on particle bacterial foraging) makes use of autonomous agents whose primary objective is to cluster chunks of data by using simplistic collaboration. Inspired by the advances in clustering using particle swarm opti...

2010
Serkan Kiranyaz Turker Ince Moncef Gabbouj

With an ever-growing attention Particle Swarm Optimization (PSO) has found many application areas for many challenging optimization problems. It is, however, a known fact that PSO has a severe drawback in the update of its global best (gbest) particle, which has a crucial role of guiding the rest of the swarm. In this paper, we propose two efficient solutions to remedy this problem using a stoc...

2016
Enver Küçükkülahli Pakize Erdoğmuş Kemal Polat Jianwei Liu Lei Guo

In this study, MR Image segmentation has been realized with some clustering algorithms. In the study, the performances kmeans, lloyds, llyds-kmeans, pso clustering, ga clustering and jaya optimisation algorithms on some MR images from BRATS 2012 dataset have been compared. For the comparison, the manual segmentation results of MR images from BRATS 2012 dataset have been referenced and results h...

Journal: :journal of optimization in industrial engineering 0
esmaeil mehdizadeh islamic azad university, science and research branch branch reza tavakkoli moghaddam department of industrial engineering, faculty of engineering, university of tehran

this paper presents a fuzzy decision-making approach to deal with a clustering supplier problem in a supply chain system. during recent years, determining suitable suppliers in the supply chain has become a key strategic consideration. however, the nature of these decisions is usually complex and unstructured. in general, many quantitative and qualitative factors, such as quality, price, and fl...

2009
Diego Ingaramo Marcelo Luis Errecalde Leticia C. Cagnina Paolo Rosso

Clustering of short-text collections is a very relevant research area, given the current and future mode for people to use “small-language” (e.g. blogs, snippets, news and text-message generation such as email or chat). In recent years, a few approaches based on Particle Swarm Optimization (PSO) have been proposed to solve document clustering problems. However, the particularities that arise wh...

2014
SAMAN POURSIAH NAVI EHSAN TOREINI MARYAM MEHRNEJAD

Clustering has been a popular topic of research for many years. In fact, the first clustering methods were statistical methods which were used prior to computer age. Clustering plays an important role in lots of sciences such as medicine, astronomy, economy, etc. In recent years, application of artificial intelligence methods in clustering gets more attention. Particle Swarm Optimization is one...

2008
Ling Song Jun Ma Po Yan Li Lian Dongmei Zhang

Deep Web database clustering is a key operation in organizing Deep Web resources. Cosine similarity in Vector Space Model (VSM) is used as the similarity computation in traditional ways. However it cannot denote the semantic similarity between the contents of two databases. In this paper how to cluster Deep Web databases semantically is discussed. Firstly, a fuzzy semantic measure, which integr...

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