D2I
Integrazione, Warehousing e Mining di sorgenti eterogenee
Prototipo per algoritmi di clustering incrementale di dati: MICluE

Stefano Lodi, Claudio Sartori

 
Tema Tema 3: Data Mining
Codice D3-P1
Data 8 ottobre 2002
Tipo di prodotto Prodotto software
Unità responsabile BO
Unità coinvolte BO
Autori Stefano Lodi, Claudio Sartori
Autore da contattare Stefano Lodi
Dipartimento di Elettronica, Informatica e Sistemistica
via Risorgimento 2
40136 Bologna BO
slodi@deis.unibo.it
Presentazione prototipo D3-P1
Documentazione in linea   D3.P1.pdf
 


Descrizione

MICluE (Metric Incremental Clustering Engine) is a prototype for static and dynamic clustering in metric spaces.  MICluE accepts data sets embedded in both categorical and numeric spaces, provided that a distance function is defined on the data space. The prototype consists of two components: a graphical user interface and a clustering engine.  The graphical user interface is built using standard visual components for input and parameter settings, and a custom plotting utility to interactively display 2-dimensional projections of clusters, if the data set is numeric. The plotting utility allows zooming and panning in the data space. A distinct plotting utility to display neighbourhood information for every data object is also provided for debugging and exploration purposes. The clustering engine uses the Multi-Vantage Point Tree (MVP-Tree)  to speed up distance and neighbourhood calculations, and provides five static clustering methods based on neighbourhood information, and both a static and a fully dynamic clustering method based on non-parametric kernel density estimation.  The static clustering methods based on neighbourhood information include the shared near neighbours method, the mutual neighbourhood value method, the kth neighbour method, and two generalizations of such methods. The density estimate based method allows for selecting the kernel function and its smoothing parameter, as well as the approximation used to compute the density estimate.


Ambiente di sviluppo e di esecuzione

Borland Delphi 6 Enterprise
Microsoft Windows 2000 Professional

 

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Sito a cura di Domenico Lembo
lembo@dis.uniroma1.it