A new approach in e-learners grouping using Hybrid Clustering Method

2012 ◽  
Author(s):  
Gholam Ali Montazer ◽  
Mohammad Sadegh Rezaei
Keyword(s):  
Clustering Method ◽  
New Approach ◽  
Hybrid Clustering

scholarly journals An automatic approach to exclude interlopers from asteroid families

2017 ◽  
Vol 470 (1) ◽  
pp. 576-591 ◽  
Author(s):  
Viktor Radović ◽  
Bojan Novaković ◽  
Valerio Carruba ◽  
Dušan Marčeta
Keyword(s):  
Hierarchical Clustering ◽  
Family Members ◽  
Main Idea ◽  
Clustering Method ◽  
New Approach ◽  
Valuable Source ◽  
Additional Step ◽  
Chaining Effect ◽  
Source Of Information ◽  
Asteroid Families

Abstract Asteroid families are a valuable source of information to many asteroid-related researches, assuming a reliable list of their members could be obtained. However, as the number of known asteroids increases fast it becomes more and more difficult to obtain a robust list of members of an asteroid family. Here, we are proposing a new approach to deal with the problem, based on the well-known hierarchical clustering method. An additional step in the whole procedure is introduced in order to reduce a so-called chaining effect. The main idea is to prevent chaining through an already identified interloper. We show that in this way a number of potential interlopers among family members is significantly reduced. Moreover, we developed an automatic online-based portal to apply this procedure, i.e. to generate a list of family members as well as a list of potential interlopers. The Asteroid Families Portal is freely available to all interested researchers.

scholarly journals OLYMPUS: An automated hybrid clustering method in time series gene expression. Case study: Host response after Influenza A (H1N1) infection

2013 ◽  
Vol 111 (3) ◽  
pp. 650-661 ◽  
Author(s):  
Konstantina Dimitrakopoulou ◽  
Aristidis G. Vrahatis ◽  
Esther Wilk ◽  
Athanasios K. Tsakalidis ◽  
Anastasios Bezerianos
Keyword(s):  
Gene Expression ◽  
Time Series ◽  
Host Response ◽  
Influenza A ◽  
H1n1 Infection ◽  
Clustering Method ◽  
Hybrid Clustering ◽  
Time Series Gene Expression ◽  
Influenza A H1n1
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