نتایج جستجو برای: jaccards similarity coefficient

تعداد نتایج: 273628  

Journal: :Pattern Recognition Letters 2008
Young Sook Son Jangsun Baek

Gene expression levels are often measured consecutively in time through microarray experiments to detect cellular processes underlying regulatory effects observed and to assign functionality to genes whose function is yet unknown. Clustering methods allow us to group genes that show similar time-course expression profiles and that are thus likely to be co-regulated. The correlation coefficient,...

2012
Anand Karthik Tumuluru Chi-kiu Lo Dekai Wu

We present larger-scale evidence overturning previous results, showing that among the many alternative phrasal lexical similarity measures based on word vectors, the Jaccard coefficient most increases the robustness of MEANT, the recently introduced, fully-automatic, state-of-the-art semantic MT evaluation metric. MEANT critically depends on phrasal lexical similarity scores in order to automat...

Journal: :Journal of Chemical Information and Computer Sciences 1998
Peter Willett John M. Barnard Geoffrey M. Downs

This paper reviews the use of similarity searching in chemical databases. It begins by introducing the concept of similarity searching, differentiating it from the more common substructure searching, and then discusses the current generation of fragment-based measures that are used for searching chemical structure databases. The next sections focus upon two of the principal characteristics of a...

Journal: :علوم گیاهان زراعی ایران 0
حیدر نادری کارشناس ارشد، دانشکدۀ کشاورزی، دانشگاه محقق اردبیلی مجید شکرپور استادیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج علی اصغری دانشیار، دانشکدۀ کشاورزی، دانشگاه محقق اردبیلی همایون کانونی استادیار، مرکز تحقیقات جهاد کشاورزی، کردستان عزت اله اسفندیاری دانشیار، دانشکدۀ کشاورزی، دانشگاه مراغه

in this research, issr technique was applied to assess genetic diversity among 56 chickpea lines. out of 34 primers, nine primers produced appropriate banding patterns and produced 35 polymorphic bands in chickpea lines. mean percentage of polymorphism of the primers was 66.01 with range of 25 to 100 percent. mean of nei's genetic diversity and shannon information index over all primers we...

2009
Benjamin Martin Matthias Robine Pierre Hanna

We propose a new retrieval system based on musical structure using symbolic structural queries. The aim is to compare musical form in audio files without extracting explicitly the underlying audio structure. From a given or arbitrary segmentation, an audio file is segmented. Irrespective of the audio feature choice, we then compute a selfsimilarity matrix whose coefficients correspond to the es...

DNA fingerprinting has become an important tool for diversity assessment and varietal identification in plant breeding programs. Semi- random PCR primers targeting intron-exon splice junctions (ISJ) were used to evaluate the potential of these markers in identification and classification of rice genotypes. A total of 12 ISJ primers were used for screening fourteen Egyptian rice genotypes, inclu...

2016
Behnaz Moradabadi Mohammad Reza Meybodi

Link prediction is a social network research area that tries to predict future links using network structure. The main approaches in this area are based on predicting future links using network structure at a specific period, without considering the links behavior through different periods. For example, a common traditional approach in link prediction calculates a chosen similarity metric for e...

Journal: :Neural networks : the official journal of the International Neural Network Society 2008
Jian-Wu Xu Hovagim Bakardjian Andrzej Cichocki José Carlos Príncipe

We propose a novel similarity measure, called the correntropy coefficient, sensitive to higher order moments of the signal statistics based on a similarity function called the cross-correntopy. Cross-correntropy nonlinearly maps the original time series into a high-dimensional reproducing kernel Hilbert space (RKHS). The correntropy coefficient computes the cosine of the angle between the trans...

Ghafourian, Sobhan, Hosseini, Shiva, Kazemian, Hossein, Maleki, Abbas, Maleki, Mohammad Hossein, Mohebi, Reza, Sadeghifard, Noorkhoda,

Background and Objective: Shigella species belong to the family Enterobacteriaceae, which cause dysentery with abdominal pain and tenesmus in human. Our country is one of the endemic and occasional epidemic areas of the disease. In the present study, Repetitive Extragenic Palindromic Polymerase Chain Reaction (REP-PCR) technique that has high differentiation and specificity power compared to ph...

Journal: :علوم گیاهان زراعی ایران 0
مرضیه نوری گوغری دانشجوی کارشناسی ارشد دانشکدۀ کشاورزی دانشگاه ولی عصر رفسنجان حسین دشتی دانشیار دانشکدۀ کشاورزی دانشگاه ولی عصر رفسنجان شهاب مداح حسینی استادیار دانشکدۀ کشاورزی دانشگاه ولی عصر رفسنجان الهام دهقان مربی پژوهشی دانشکدۀ کشاورزی دانشگاه ولی عصر رفسنجان

genetic diversity is the basis success of improving the quality and quantity of crops. recognizing of genetic diversity and genetic potential of each plant species in plant breeding is necessary. in this study genetic diversity of 30 lentil samples belonging to collection of the college of agriculture of krage were evaluated using rapd molecular markers. rapd products were scored for presence (...

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