نتایج جستجو برای: one method named supervised fuzzy c

تعداد نتایج: 4192688  

2003
Atsushi INOUE

A robust method of intelligent information processing with respect to user’s perception of data, named Perceptual Information Processing (PIP), is being studied. This method uses fuzzy sets as the representation of user perceptions and a soft computing method called Mass Assignment Theory (MAT) the computational core to manage consistencies between histograms of actual data and the fuzzy sets. ...

1998
Jinsung Oh Luis F. Chaparro

In this paper we introduce a neural network implementation of fuzzy mathematical morphology operators and apply it to image denoising. Using a supervised training method and differentiable equivalent representations for the fuzzy morphological operators, we derive efficient adaptation algorithms to optimize the structuring elements. We can then design fuzzy morphological filters for processing ...

2012
Niladri Shekhar Mishra Susmita Ghosh Ashish Ghosh

For the problem of change detection it is difficult to have sufficient amount of ground truth information that is needed in supervised learning. On the contrary it is easy to identify a few labeled patterns by the experts. In this situation to avoid wastage of available information semi-supervision is suggestible to enhance the performance of unsupervised ones. Here we present the fuzzy cluster...

Journal: :iranian journal of fuzzy systems 2013
mohammad taheri hamid azad koorush ziarati reza sanaye

recently, tuning the weights of the rules in fuzzy rule-base classification systems is researched in order to improve the accuracy of classification. in this paper, a margin-based optimization model, inspired by support vector machine classifiers, is proposed to compute these fuzzy rule weights. this approach not only  considers both accuracy and generalization criteria in a single objective fu...

2008
Jzau-Sheng Lin Shao-Han Liu

In this paper, a new Hopfield-model net based on fuzzy possibilistic reasoning is proposed for the classification of multispectral images. The main purpose is to modify the Hopfield network embedded with fuzzy possibilistic -means (FPCM) method to construct a classification system named fuzzy-possibilistic Hopfield net (FPHN). The classification system is a paradigm for the implementation of fu...

H. Ghoudjehbaklou and H. Seifi, M.E. Hamedani Golshan,

Finding the collapse susceptible portion of a power system is one of the purposes of voltage stability analysis. This part which is a voltage control area is called the voltage weak area. Determining the weak area and adjecent voltage control areas has special importance in the improvement of voltage stability. Designing an on-line corrective control requires the voltage weak area to be determi...

H. Ghoudjehbaklou and H. Seifi, M.E. Hamedani Golshan,

Finding the collapse susceptible portion of a power system is one of the purposes of voltage stability analysis. This part which is a voltage control area is called the voltage weak area. Determining the weak area and adjecent voltage control areas has special importance in the improvement of voltage stability. Designing an on-line corrective control requires the voltage weak area to be determi...

2003
Mohamed A. Shalan Manoj K. Arora John Elgy

Introduction Classification is a fundamental image processing operation to extract information from remote sensing data. Both crisp and fuzzy classifications may be performed. In a crisp classification, each image pixel is assumed to be pure and is classified to one class. Often, particularly in coarse spatial resolution images, the pixels may be mixed containing two or more classes. Fuzzy clas...

2016
Xu Han Jung-jae Kim Chee Keong Kwoh

BACKGROUND Biomedical text mining may target various kinds of valuable information embedded in the literature, but a critical obstacle to the extension of the mining targets is the cost of manual construction of labeled data, which are required for state-of-the-art supervised learning systems. Active learning is to choose the most informative documents for the supervised learning in order to re...

2005
Behrang Mohit Rebecca Hwa

We report an empirical study on the role of syntactic features in building a semisupervised named entity (NE) tagger. Our study addresses two questions: What types of syntactic features are suitable for extracting potential NEs to train a classifier in a semi-supervised setting? How good is the resulting NE classifier on testing instances dissimilar from its training data? Our study shows that ...

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