نتایج جستجو برای: cluster analysis

تعداد نتایج: 2928703  

Journal: :practice in clinical psychology 0
فرزاد رادمهر farzad radmehr school of mathematical sciences, ferdowsi university of mashhad, iran.نیوزلند-ویلینگتون- دانشگاه ویکتوریا حسن علم الهدایی hassan alamolhodaei mashhad- school of mathematical sciences of ferdowsi university of mashhadمشهد- دانشکده علوم ریاضی دانشگاه فردوسی مشهد

objective: this article presents an application of cluster analysis for social sciences researches especially those studies that have an interview as part of their data collection. this application is more suitable for sequential mixed method researchers who use quantitative data to frame subsequent qualitative subsamples for conducting interviews.  methods: in more detail, the algorithm (i.e.,...

Journal: :علوم باغبانی 0
محی الدین پیر خضری محمداسماعیل حسنی محمد فخر طباطبایی

abstract for evaluation and identification some of the chamomile species in two genera anthemis and matricaria, morphological and phonological characteristics were used. the experiment was conducted in a randomized completely blocks design (rcbd) with three replicates, sixteen quantitative and qualitative traits were evaluated such as plant height, anthodium diameter, receptacle diameter, ligul...

Journal: :international journal of environmental research 2011
l. belkhiri a. boudoukha l. mouni

q-mode hierarchical cluster (hca) and principal component analysis (pca) were simultaneously applied to groundwater hydrochemical data from the three times in 2004: june, september, and december, along the ain azel aquifer, algeria, to extract principal factors corresponding to the different sources of variation in the hydrochemistry, with the objective of defining the main controls on the h...

Journal: :journal of agricultural science and technology 2015
s. chatterjee r. goswami p. bandopadhyay

targeted extension for heterogeneous farming systems is a challenge in developing countries. farm type identification and characterization based on estimates of income from different farm components allows simplifying diversity in farming systems. use of multivariate statistical techniques, such as principal component analysis (pca) and cluster analysis (ca), help in such farm typology delineat...

Journal: :iranian journal of environmental sciences 0
debbrota mallick institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh md. islam institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh avijit talukder institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh shamindra mondal institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh md. al-imran institute of marine sciences and fisheries, university of chittagong, chittagong 4331, bangladesh satchidananda biswas shushilan, khulna, bangladesh

the karnafully is one of the most important rivers due to its profound influence on water chemistry and sediment characteristics. the present study intended to assess the quality of water and sediment from intertidal zone of this river in respect to the pollution index. seasonal water and sediment samples were collected during four seasons (monsoon, post-monsoon, winter, and pre-monsoon) of 201...

Journal: :journal of rangeland science 2012
ali ashraf jafari milad lak ghasem assadian

. in order to study the variation for seed yield and its components, 200 accessions of alfalfa (medicago sativa l.) were sown as drilled plots, using alpha designs/unreplicated with two repeated entries with in all of 10 blocks under dry land farming system in kabodarahang research station, hamadan, iran, during 2010 to 2011. data were analyzed for descriptive statistics, correlation, regressio...

Hassanali Aghajani Kazem Ravanestan

Clusters are geographically close groups of related companies or institutions related to a certain area which are inherently more efficient than the other companies due to advantages such as being located in one place, networks, external knowledge, variability of human capital, etc. Today, development through clusters plays a pivotal role in the economic and industrial policies of developed...

Feridon Ghadimi Mohammad Ghomi

This paper presents results of an assessment of dominant hydro-geochemical processes controlling groundwater chemical composition, using an integrated application of cluster analysis and factor analysis. The area is located in south of saline playa and in Arak city. Cluster analysis classified samples into two main clusters according to their dominant chemical composition: cluster A (dominant c...

Objective: This article presents an application of cluster analysis for social sciences researches especially those studies that have an interview as part of their data collection. This application is more suitable for sequential mixed method researchers who use quantitative data to frame subsequent qualitative subsamples for conducting interviews.  Methods: In more detail, the algorithm (i....

Seyed H. Iran-Manesh and Seyed T. A. Niaki,

In this paper an application of the cluster analysis technique in educational planning is demonstrated by means of a developed computer software with some characteristics of an expert system. The main idea is based on the knowledge-based systems which have been applied in group technology. The software is applied to weekly schedules of the courses and professors of the Industrial Engineering De...

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