DebellorData Mining Platform with Stream Architecture

Marcin Wojnarski

Warsaw University, Poland

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Outline

Debellor – data mining platform

Motivation

Main features

Architecture: Cell data streaming multi-threading

Available in ver. 0.6

Future releases

Summary

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Language: Java

Licence: open source (GPL)

Download: www.debellor.org

Debello – to conquer (latin). Debellor – conqueror of data

Debellor

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Rseslib

Debellor – data mining platform

Weka TA-Lib

Lib

SVM

own…

own…

Debellor

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Motivation

Demand for more complex algorithms.

Necessity to combine elementary algorithms.

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Motivation

1. Data Processing Network (DPN)

Load Preprocess PredictPreprocess

Save

Load

Visualize

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Motivation

2. Committee of algorithms

Classifier B Voting

Classifier A

Classifier C

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Motivation

3. Nested algorithms

RBF neural network

K-means

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Requirements

Versatile Efficient

Simple

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All types of data processing algorithms

Extendible data types

Stream architecture large data sets

Multi-threading

Immutability of data objects safety

Features of Debellor

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Debellor

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Algorithm Cell

cell

Cell cell = new RseslibClassifier("C45");

cell.set("pruning", "true");

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Cell – data source

cell

cell.open();

Sample s1 = cell.next(),

s2 = cell.next(),

...

cell.close();

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Cell – data receiver

cell

cell.setSource(anotherCell);

anotherCell

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Trainable Cell

cell

cell.setSource(…);

cell.learn();

cell

EMPTY

TRAINED

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Data Streaming

A B

A B

BATCH

STREAM

It’s the cell who is responsible for asking for data

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Benefits of streaming

X X

crash!

training of k-means

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Thread_1

Multi-threading

A B

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Thread_1

Multi-threading

A.newThread();

A B

Thread_2

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Available in version 0.6

Rseslib algorithms: classifiers (~20 algorithms)

Weka algorithms: ARFF reader classifiers (~60) filters (47)

Debellor algorithms: Train&Test evaluation k-means for large data (stream-based)

Data types: numeric and symbolic features vectors of features, vectors of vectors of …

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Future releases

Multi-input & multi-output cells

Composite cells (e.g. meta-learning)

Serialization and copying

…

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Summary

Platform

Stream architecture

Extendible

Multi-threaded

Weka & Rseslib partially integrated

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www.debellor.org

Home

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