نتایج جستجو برای: hierarchical clustering

تعداد نتایج: 184775  

ژورنال: پژوهش در پزشکی 2007
محرابی, یدالله, نقوی, بهار, علوی مجد, حمید, واحدی, محسن,

Background: Microarray DNA technology has paved the way for investigators to expressed thousands of genes in a short time. Analysis of this big amount of raw data includes normalization, clustering and classification. The present study surveys the application of clustering technique in microarray DNA analysis. Materials and methods: We analyzed data of Van’t Veer et al study dealing with BRCA1...

Journal: :journal of computer and robotics 0
mohammad reza keyvanpour department of computer engineering, alzahra university, tehran, iran mostafa javideh shamsipoor technical college, tehran, iran mohammad reza ebrahimi islamic azad university, qazvin branch, qazvin, iran

traditional leveraging statistical methods for analyzing today’s large volumes of spatial data have high computational burdens. to eliminate the deficiency, relatively modern data mining techniques have been recently applied in different spatial analysis tasks with the purpose of autonomous knowledge extraction from high-volume spatial data. fortunately, geospatial data is considered a proper s...

Journal: :journal of advances in computer research 2016
amir ebrahimi ghahnavieh abolghasem a. raie

each license plate recognition system is composed of three main parts, namely, license plate detection, character segmentation and character recognition. in this paper, we focus on the improvement and innovation of the character recognition step. for this purpose, a new hierarchical architecture based on support vector machines (svms) is suggested for persian license plate characters recognitio...

Artificial immune system (AIS) is one of the most meta-heuristic algorithms to solve complex problems. With a large number of data, creating a rapid decision and stable results are the most challenging tasks due to the rapid variation in real world. Clustering technique is a possible solution for overcoming these problems. The goal of clustering analysis is to group similar objects. AIS algor...

2013

Background. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Provided Data Set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Exercise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Graphs have so many applications in real world problems. When we deal with huge volume of data, analyzing data is difficult or sometimes impossible. In big data problems, clustering data is a useful tool for data analysis. Singular value decomposition(SVD) is one of the best algorithms for clustering graph but we do not have any choice to select the number of clusters and the number of members ...

ژورنال: دانشور پزشکی 2010
خادم معبودی, علی‌اکبر , خیر, نصیبه , رضایی طاویرانی, مصطفی , زرنگارنیا, یلدا , علوی مجد, حمید ,

Background and Objective: Using proteomic methodologies and advent of high-throughput (HTP) investigation of proteins has created a need for new approaches in bioinformatics analysis of experimental results. Cluster analysis is a suitable statistical procedure that can be useful for analyzing these data sets.   Materials and Methods: In this research study, the identified proteins associated wi...

Energy constraint is the biggest challenge in wireless sensor networks because the power supply of each sensor node is a battery that is not rechargeable or replaceable due to the applications of these networks. One of the successful methods for saving energy in these networks is clustering. It has caused that cluster-based routing algorithms are successful routing algorithm for these networks....

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