نتایج جستجو برای: hierarchical feature selection fs

تعداد نتایج: 619574  

The Internet provides easy access to a kind of library resources. However, classification of documents from a large amount of data is still an issue and demands time and energy to find certain documents. Classification of similar documents in specific classes of data can reduce the time for searching the required data, particularly text documents. This is further facilitated by using Artificial...

Journal: :journal of medical signals and sensors 0
nooshin jafari fesharaki hossein pourghassem

abstract— due to the daily mass production and the widespread variation of medical x-ray images, it is necessary to classify these for searching and retrieving proposes, especially for content-based medical image retrieval systems. in this paper, a medical x-ray image hierarchical classification structure based on a novel merging and splitting scheme and using shape and texture features is prop...

The Internet provides easy access to a kind of library resources. However, classification of documents from a large amount of data is still an issue and demands time and energy to find certain documents. Classification of similar documents in specific classes of data can reduce the time for searching the required data, particularly text documents. This is further facilitated by using Artificial...

Journal: :International Journal of Approximate Reasoning 2010

Journal: :Computers & Electrical Engineering 2015
Nadia Abd-Alsabour

This paper studies the effect of fixing the length of the selected feature subsets on the performance of ant colony optimization (ACO) for feature selection (FS) for supervised learning. It addresses this concern by investigating: (1) determining the optimal feature subset from datamining perspective, (2) demonstrating the solution convergence in case of fixing the length of the selected featur...

2014
Petar Ristoski Heiko Paulheim

Feature selection is an important preprocessing step in data mining, which has an impact on both the runtime and the result quality of the subsequent processing steps. While there are many cases where hierarchic relations between features exist, most existing feature selection approaches are not capable of exploiting those relations. In this paper, we introduce a method for feature selection in...

2006
N. Mac Parthaláin

Feature Selection (FS) methods based on fuzzy-rough set theory (FRFS) have employed the dependency function to guide the FS process with much success. More recently a method has been developed which uses fuzzy-entropy [9] to perform this task. Such use of fuzzy-entropy as an evaluation measure in fuzzy-rough feature selection can result in smaller subset sizes than those obtained through FRFS a...

2007
Anazida Zainal Mohd Aizaini Maarof Siti Mariyam Shamsuddin

Generally, IDS use all the features in network packet to evaluate and look for intrusive patterns. This data contains redundant and some give false correlation. Thus, feature selection is required to address this issue. This study integrates a statistical approach called Rough Set and evolutionary computing approach called Particle Swarm to form a 2-tier structure of feature selection process. ...

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