نتایج جستجو برای: data mining segmentation

تعداد نتایج: 2490718  

2003
A. J. Brimicombe

Spatial data mining seeks to discover meaningful patterns from data where a key dimension of the data is geographical location. This spatial dimension becomes important when data either refer to specific locations andJor have significant spatial dependence and which needs to be taken into consideration if meaningfid patterns are to emerge. For point data there are two main groups of approaches....

Journal: :journal of medical signals and sensors 0
reza azmi boshra pishgoo narges norozi samira yeganeh

brain mr images tissue segmentation is one of the most important parts of the clinical diagnostic tools. pixel classification methods have been frequently used in the image segmentation with two supervised and unsupervised approaches up to now. supervised segmentation methods lead to high accuracy but they need a large amount of labeled data, which is hard, expensive and slow to obtain. moreove...

2015
Meiyan Huang Wei Yang Yao Wu

In Medical diagnosis, through Magnetic Resonance Images Robustness and accuracy of the Prediction algorithms are very important, because the result is crucial for treatment of Patients. There are many popular classification and clustering algorithms used for predicting the diseases from Images. The goal of clustering a medical image is to simplify the representation of an image into a meaningfu...

2013
ZHI - HANG TANG BEI - PING TANG

Data mining has gained popularity in the database field recently, the gained knowledge is static because of the static nature of the database, and does not reflect the dynamic nature of knowledge. Extension data mining is a product combining Extenics with data mining, By using the theory and method of Extenics, it can mine the knowledge from database which is relative to solve contradictory pro...

2010
Shankar S Sri Krishna

The paradigm shift from ̳data-centered pattern mining‘ to ̳domain driven actionable knowledge discovery‘ has increased the need for considering the business yield (utility) and demand or rate of recurrence of the items (frequency) while mining a retail business transaction database. Such a data mining process will help in mining different types of itemsets of varying business utility and demand....

2006
Tak-Chung Fu Korris Fu-Lai Chung Chak-man Ng

is one of the fundamental components in time series data mining. One of the uses of the time series segmentation is trend analysis-to segment the time series into primitive trends like uptrend and downtrend. In this paper, a time series segmentation method based on a specialized binary tree representation scheme is proposed; this representation scheme is customized for financial time series to ...

2001
Lisa Pritscher Hans Feyen

In the airline industry, data analysis and data mining are a prerequisite to push customer relationship management (CRM) ahead. Knowledge about data mining methods, marketing strategies and airline business processes has to be combined to successfully implement CRM. This paper is a case study and gives an overview about distinct issues, which have to be taken into account in order to provide a ...

2008
Danhuai Guo

Advances in wireless transmission and increasing quantity of GPS in vehicles flood us with massive amount of trajectory data. The large amounts of trajectories imply considerable quantity of interesting road condition that current traffic database lacks. Mining live traffic condition from trajectories is a challenge due to complexity of road network model, uncertainty of driving behavior as wel...

2010
Shankar S Sri Krishna

The paradigm shift from ‘data-centered pattern mining’ to ‘domain driven actionable knowledge discovery’ has increased the need for considering the business yield (utility) and demand or rate of recurrence of the items (frequency) while mining a retail business transaction database. Such a data mining process will help in mining different types of itemsets of varying business utility and demand...

2005
Yanbo J. Wang

Analysing customers in groups is one of the most fundamental issues in Marketing. It helps companies sufficiently learn from their customers, and rationally design their marketing strategies. Given a customer database with n records (customers) and m attributes (one’s characteristics) stored, different approaches can be applied to automatically segment (cluster) records in divisions. In this pa...

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