نتایج جستجو برای: coherent generators clustering

تعداد نتایج: 184386  

2010
Yi Shi Maryam Hasan Zhipeng Cai Guohui Lin Dale Schuurmans

We propose a new bi-clustering algorithm, LinCoh, for finding linear coherent bi-clusters in gene expression microarray data. Our method exploits a robust technique for identifying conditionally correlated genes, combined with an efficient density based search for clustering sample sets. Experimental results on both synthetic and real datasets demonstrated that LinCoh consistently finds more ac...

2003
Chris H. Q. Ding

We present a coherent framework for data clustering. Starting with a Hopfield network, we show the solutions for several well-motivated clustering objective functions are principal components. For MinMaxCut objectives motivated for ensuring cluster balance, the solutions are the nonlinearly scaled principal components. Using scaled PC A, we generalize to multi-way clustering, constructing a sel...

Journal: :Discrete Math., Alg. and Appl. 2012
Yi Shi Maryam Hasan Zhipeng Cai Guohui Lin Dale Schuurmans

We propose a new bi-clustering algorithm, LinCoh, for finding linear coherent bi-clusters in gene expression microarray data. Our method exploits a robust technique for identifying conditionally correlated genes, combined with an efficient density based search for clustering sample sets. Experimental results on both synthetic and real datasets demonstrated that LinCoh consistently finds more ac...

Journal: :iranian journal of radiation research 0
m. momennezhad nuclear medicine research center, emam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iran s.r. zakavi nuclear medicine research center, emam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iran r. sadeghi nuclear medicine research center, emam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iran

background: 99mtc is a widely used radioisotope in nuclear medicine centers which is obtained by elution from mo-99/tc-99m generators. usually the generators are either supplied by the iran atomic energy agency or by private companies from foreign countries. in this study we have measured 99mo contamination in 99mtc elute from different generators in a period of one year. materials and methods:...

Journal: :Physical review letters 2014
A Higuera A Mislivec L Aliaga O Altinok A Bercellie M Betancourt A Bodek A Bravar W K Brooks H Budd A Butkevich M F Carneiro C M Castromonte M E Christy J Chvojka H da Motta J Devan S A Dytman G A Díaz B Eberly J Felix L Fields R Fine G A Fiorentini H Gallagher A Gomez R Gran D A Harris K Hurtado J Kleykamp M Kordosky T Le E Maher S Manly W A Mann C M Marshall D A Martinez Caicedo K S McFarland C L McGivern A M McGowan B Messerly J Miller J G Morfín J Mousseau T Muhlbeier D Naples J K Nelson A Norrick J Osta J L Palomino V Paolone J Park C E Patrick G N Perdue R D Ransome H Ray L Ren P A Rodrigues D Ruterbories H Schellman D W Schmitz F D Snider C J Solano Salinas N Tagg B G Tice E Valencia T Walton J Wolcott M Wospakrik G Zavala D Zhang B P Ziemer

Neutrino-induced coherent charged pion production on nuclei νμA→μ(±)π(∓)A is a rare, inelastic interaction in which a small squared four-momentum |t| is transferred to the recoil nucleus, leaving it intact in the reaction. In the scintillator tracker of MINERvA, we remove events with evidence of particles from nuclear breakup and reconstruct |t| from the final-state pion and muon. We select low...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Zhigang Chen Suzanne M Sears Hector Martin Demetrios N Christodoulides Mordechai Segev

We demonstrate theoretically and experimentally the spontaneous clustering of solitons in partially coherent wavefronts during the final stages of pattern formation initiated by modulation instability and noise.

2011
SHU-CHEN WANG

This paper presents the applications of hierarchical clustering to the generators in a power system. A useful application of fuzzy mathematics is that the correction of clustering results and determination of whether it can obtain correct transitive closure. Thus, the fuzzy transitive closure plays an important role in hierarchical clustering. Based on the fuzzy relation matrix, the hierarchica...

2011
Ullas Gargi Wenjun Lu Vahab S. Mirrokni Sangho Yoon

Detecting coherent and well-connected communities inside large-scale graphs is an interesting problem that can provide useful insight into the graph structure and individual communities. It can also serve as the basis for content exploration and discovery within the graph. Clustering is a popular technique for community detection, however, the two main categories of clustering algorithms, i.e, ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید