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protected:limbo [2009/05/08 17:21] – created markprotected:limbo [2010/05/06 14:12] (current) bil
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 ====== LIMBO Algorithm ====== ====== LIMBO Algorithm ======
 +
 ====== History ====== ====== History ======
 +The algorithm was developed by Periklis Andritsos and Vassilios Tzerpos.
 +
 ====== Algorithm Intent ====== ====== Algorithm Intent ======
 +
 +To generate decompositions that exhibit the least information lost when entities are represented by their clusters.
 +
 ====== Factbase Properties ====== ====== Factbase Properties ======
 +
 +The factbase is a generic dependency data table where each row describes one [[terms|entity]] to be clustered. Each column contains the value for a specific [[terms|attribute]]. 
 +
 ====== Clustering Objectives ====== ====== Clustering Objectives ======
 +
 +The Limbo algorithm produces software decompositions with minimum information loss.
 +
 ====== Process Description ====== ====== Process Description ======
 +
 +An agglomerative clustering algorithm that on each step merges the two clusters with the least information loss.
 +
 +The information lost is calculated using the Agglomerative Information Bottleneck algorithm.     
 +
 ====== Decomposition Properties ====== ====== Decomposition Properties ======
 +
 +The LIMBO decomposition has a small value for its information lost function. 
 +
 ====== Algorithm Restrictions ====== ====== Algorithm Restrictions ======
 +
 ====== Failed Assumptions ====== ====== Failed Assumptions ======
 +
 ====== Detailed Algorithm Description ====== ====== Detailed Algorithm Description ======
 +
 +LIMBO has four phases:
 +   - Creation of the Summary Artefacts
 +   - Application of the AIB algorithm
 +   - Associating original artefacts with clusters
 +   - Determining the number of clusters 
 +
protected/limbo.1241803265.txt.gz · Last modified: 2009/05/08 17:21 by mark