نتایج جستجو برای: cluster validity

تعداد نتایج: 311806  

Journal: :practice in clinical psychology 0
soheyla aminizadeh department of clinical psychology, university of social welfare and rehabilitation sciences, tehran, iran. behrooz dolatshahi university of welfare and rehabilitation sciences, department of clinical psychology, tehran, iran abbas pourshahbaz university of welfare and rehabilitation sciences, department of clinical psychology, tehran, iran bahareh babapour university of welfare and rehabilitation sciences, department of clinical psychology, tehran, iran iman yousefzadeh allameh tabatabaei university, tehran, iran elham zamanshoar allameh tabatabaei university, tehran, iran

objective: in this study, psychometric qualities of multidimensional perfectionism scale (mps) were evaluated. methods: persian version of perfectionism inventory was completed by 48 adults (24 females and 24 males). the sample was selected by cluster random sampling from sarcheshmeh adult inhabitants. reliability of the scale was assessed by calculating cronbach's alpha coefficient. then ...

Journal: :CoRR 2011
Zahid Ahmed Ansari M. F. Azeem Waseem Ahmed A. Vinaya Babu

Clustering techniques are widely used in “Web Usage Mining” to capture similar interests and trends among users accessing a Web site. For this purpose, web access logs generated at a particular web site are preprocessed to discover the user navigational sessions. Clustering techniques are then applied to group the user session data into user session clusters, where intercluster similarities are...

Journal: :Fuzzy Sets and Systems 2006
Ricardo J. G. B. Campello Eduardo R. Hruschka

The present paper proposes a new cluster validity measure as an additional criterion to help the decision making process in fuzzy cluster analysis. This measure, named Fuzzy Silhouette, is a generalization to the fuzzy case of the Average Silhouette Width Criterion, originally conceived to assess crisp (non-fuzzy) data partitions. The Fuzzy Silhouette is more appealing than its crisp counterpar...

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2022

the first block of our unsupervised deep collaborative recommendation (UDCF) system and proposes a platform whose goal is to try find adequate parameters Kohonen maps, create homogeneous clusters in profile data results, homogeneity verified thanks very low variance rate results obtained by cluster population second criterion which high prediction recommendation. Although revision concerns only...

1998
C. S. Jayanthi S. Y. Wu Z. L. Xie

We have developed an order-N method to calculate the total energy and atomic forces for a nonorthogonal tight-binding Hamiltonian. We have first confirmed the validity of our approach by comparing our results with the exact calculation for a small silicon cluster. The efficiency of our approach for a large system is demonstrated by determining the equilibrium configuration of a Si1000 cluster u...

2004
K. J. Abraham

We analyze the Lipkin Model in the strong coupling limit using effective operator techniques. We present both analytical and numerical results for low energy effective hamil-tonians. We investigate the reliability of various approximations used to simplify the nuclear many body problem, such as the cluster approximation. We demonstrate, in explicit examples, certain limits to the validity of th...

Journal: :Xinan Jiaotong Daxue Xuebao 2021

This study wants to compare the Integrated Cluster Analysis and SEM model of Warp-PLS approach with various cluster validity indices distance measures on Service Quality, Environment, Fashions, Willingness Pay, Compliant Paying Behavior Bank X Customers. The data used in this are primary. variables service quality, environment, fashion, willingness pay, compliance paying behavior at X. were obt...

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