نتایج جستجو برای: cost based feature selection

تعداد نتایج: 3511513  

Journal: :International Journal of Computational Intelligence Systems 2018

Journal: :amirkabir international journal of electrical & electronics engineering 2013
f. shirbani h. soltanian zadeh

biomedical datasets usually include a large number of features relative to the number of samples. however, some data dimensions may be less relevant or even irrelevant to the output class. selection of an optimal subset of features is critical, not only to reduce the processing cost but also to improve the classification results. to this end, this paper presents a hybrid method of filter and wr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی صنعتی کرمان - دانشکده برق و کامپیوتر 1393

در پرتودرمانی با بیم خارجی، هدف اصلی رساندن دوز تجویز شده به حجم تومور می باشد در حالی که کمترین دوز ممکن توسط بافت های سالم اطراف آن دریافت گردد. با این حال در ناحیه نیم تنه بالای بدن، حرکات ناشی از ضربان قلب، فشار های مختلف نظیر پر و خالی شدن مثانه یا روده ها و به خصوص تنفس موجب عدم قطعیت بالایی در تشخیص موقعیت تومور شده که در نتیجه کیفیت درمان را کاهش می دهند. یکی از جدیدترین روش ها برای جبر...

Journal: :Vision Research 2012
Shih-Yu Lo Christina J. Howard Alex O. Holcombe

According to a limited-resource account of feature-based attention, dividing feature-based attention by selecting targets on the basis of different features dilutes its power. Multiple-feature costs have been documented previously, but it is not clear whether the multiple-feature cost arose at the selection (segregating targets from non-targets) stage predicted by the limited-resource account. ...

Feature selection is considered as an important issue in classification domain. Selecting a good feature through maximum relevance criterion to class label and minimum redundancy among features affect improving the classification accuracy. However, most current feature selection algorithms just work with the centralized methods. In this paper, we suggest a distributed version of the mRMR featu...

Journal: :The Journal of the Acoustical Society of Korea 2012

2014
Shihai Shi Qin Liu

Software cost estimation is one of the most crucial processes in software development management because it involves many management activities such as project planning, resource allocation and risk assessment. Accurate software cost estimation not only does help to make investment and bid plan but also enable the project to be completed in the limited cost and time. The research interest of th...

Negin Manavizadeh, Tara Ghafouri,

Background: In the current study, a hybrid feature selection approach involving filter and wrapper methods is applied to some bioscience databases with various records, attributes and classes; hence, this strategy enjoys the advantages of both methods such as fast execution, generality, and accuracy. The purpose is diagnosing of the disease status and estimating of the patient survival. Method...

Journal: :Electronics 2021

This study proposes an alternate data extraction method that combines three well-known feature selection methods for handling large and problematic datasets: the correlation-based (CFS), best first search (BFS), dominance-based rough set approach (DRSA) methods. aims to enhance classifier’s performance in decision analysis by eliminating uncorrelated inconsistent values. The proposed method, na...

Journal: :MATEC web of conferences 2021

The software cost prediction is a crucial element for project’s success because it helps the project managers to efficiently estimate needed effort any project. There exist in literature many machine learning methods like decision trees, artificial neural networks (ANN), and support vector regressors (SVR), etc. However, studies confirm that accurate estimations greatly depend on hyperparameter...

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