نتایج جستجو برای: bouldin
تعداد نتایج: 203 فیلتر نتایج به سال:
The Radial Coordinate Visualization (Radviz) technique has been widely used to effectively evaluate the existence of patterns in highly dimensional data sets. A crucial aspect of this technique lies in the arrangement of the dimensions, which determines the quality of the posterior visualization. Dimension arrangement (DA) has been shown to be an NP-problem and different heuristics have been pr...
Automatic identification of learners groups based on similarity of learning style improves e-learning systems from the viewpoint of learning adaptation and collaboration among learners. In this paper, a new system is proposed for identifying groups of learners, who have similar learning style, by using learners’ behavior information in an e-learning environment. Proposed clustering method for s...
In the real world clustering problems, it is often encountered to perform cluster analysis on data sets with mixed numeric and categorical values. However, most existing clustering algorithms are only efficient for the numeric data rather than the mixed data set. In addition, traditional methods, for example, the K-means algorithm, usually ask the user to provide the number of clusters. In this...
Citation: Everett JD, Baird ME, Buchanan P, Bulman C, Davies C, Downie R, Griffiths C, Heneghan R, Kloser RJ, Laiolo L, Lara-Lopez A, Lozano-Montes H, Matear RJ, McEnnulty F, Robson B, Rochester W, Skerratt J, Smith JA, Strzelecki J, Suthers IM, Swadling KM, van Ruth P and Richardson AJ (2017) Modeling What We Sample and Sampling What We Model: Challenges for Zooplankton Model Assessment. Front...
Addiction is a biological, psychological, and social disease. Several factors are involved in etiology, substance abuse, and addiction which interact with each other and lead to the beginning of drug use and then addiction. Heroin is an addictive drug that, by acting on the central nervous system, reduces the density of neurons in the brain and interferes with decision making. This paper examin...
بخش بندی تصویر یکی از مسائل مهم در حوزه پردازش تصویر است که تاکنون بدان پرداخته شده است. با توجّه به تمام تلاش هایی که در این حوزه صورت گرفته است، امّا این موضوع همچنان به عنوان یکی از چالش های حل نشده در پردازش تصویر به شمار می رود. از جمله حوزه های مهم کاربرد بخش بندی تصویر می توان به موارد ذیل اشاره نمود: پزشکی، تشخیص الگو، دید روبات و بازیابی مبتنی بر محتوای تصویر. هدف اصلی بخش بندی تصویر، تج...
electroencephalogram (eeg) is one of the useful biological signals to distinguish different brain diseases and mental states. in recent years, detecting different emotional states from biological signals has been merged more attention by researchers and several feature extraction methods and classifiers are suggested to recognize emotions from eeg signals. in this research, we introduce an emot...
Bibit padi yang mempunyai kualitas unggul memiliki peran penting dalam peningkatan produktivitas pada sektor pertanian. Banyaknya bibit dikembangkan oleh Balai Besar Penelitian Tanaman Padi menghasilkan karakteristik baru serta kemiripan hampir sama. berdasarkan karakteristiknya dapat dikelompokkan dengan menggunakan metode Clustering dimana proses perhitungannya pengukuran jarak. Pada peneliti...
Öneri sistemleri, kullanıcıların memnuniyetini ve bağlılığını arttırıp, kullanıcılara kişiselleştirilmiş sistem deneyimini yaşatabilmek için geliştirilmiştir. sistemleri sayesinde kullanıcılar tercihlerine en uygun olan sonucu az çaba göstererek bulabilmektedirler. Kullanıcıya özel öneri sistemlerinin önemi son yıllarda giderek artmakta filmler, şarkılar, haberler başta olmak üzere çeşitli alan...
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