Weka for Windows


Weka Development Team(Free)

User rating7


A collection of algorithms for machine learning

Weka is a comprehensive data mining tool with a huge collection of machine learning algorithms. Its primary objective is to solve real-world data mining problems. Users can apply the algorithms directly to a data set or call them from custom Java code. The app comes with all the tools required for data classification, clustering, pre-processing, regression, visualisation, association rules, and more. The program can be used to develop new ML (machine learning) schemes.

With Weka download, the collection of algorithms ranges from the ones able to handle data modelling to pre-processing. The machine learning software’s core data mining algorithms include classification, clustering, and regression. While the program comes with a full package of algorithms for data analysis, it can only manage single flat files but not multi-relational sequence modelling and mining. Still, compared to other similar programs like JRE, Cisco Packet Tracer, and FOCA, Weka has become a leading choice among developers.

All the tools required for data pre-processing

Weka is a leading data mining app, which helps you understand data in a more efficient manner. The program comes with comprehensive data analysis tools, which can be used to develop new ML schemes and extract information. The application is used by programmers around the world, and is considered to be a great choice for data analysis.


What are the features?

The machine learning software offers a suite of features, including data mining, classification, machine learning, clustering, pre-processing, refreshing, experiments, visualisation, attribute selection, association rules, and more. Weka has been written in Java at the University of Waikato, New Zealand.

It’s important to understand that Weka’s techniques are based on the assumption that data is available as a relation or single flat line, where every data point has been prescribed a number of attributes. Subsequently, the data mining tool gives access to SQL databases using Java, and processes the result given by the database query. As mentioned before it can’t handle multi-relational data mining.

How’s the interface and design?

Weka download takes inspiration from an Explorer-style interface, where various functionalities can be accessed through component-based ‘Knowledge Flow’ interface. Users can also leverage the command line to insert queries or information. The program has the ‘Experimenter’ feature, which enables a systematic comparison of Weka’s performance.

The interface comes with multiple panels giving access to the primary components of the workbench, such as the Pre-Process Panel, which can be used to import data. Similarly, the Classify Panel lets users apply regression and classification algorithms.

The Associate Panel gives access to association rule learners, while the Cluster Panel can be used to access various clustering techniques. There’s also a Select Attributes Panel, which offers algos for identifying predictive attributes. Last but not least, Weka features a Visualise Panel, which displays a scatter plot matrix.

What are the software’s applications?

The data modelling tool offers a comprehensive set of learning algorithms, pre-processing tools, graphical user interfaces, evaluation methods, and a stable environment for comparing various algos. The data can be conveniently imported in multiple formats, including CSV, ARFF, Binary, and C4.5.

With the machine learning software, you can also read datasets from an SQL database or a URL. In Weka, pre-processing tools are called ‘Iters’, which are available for normalisation, combining attributes, discretisation, transformation attributes, and selecting attributes.

The learning schemes implemented with the data mining tool include decision lists and trees, multi-layer perceptrons, support vector machines, Bayes’ nets, logistic regression, etc. The meta classifiers include stacking, bagging, correcting output codes, boosting, weighted learning, and more. The implemented schemes include Cobweb, EM, FarthestFirst, X-means, and kMeans.

It’s worth mentioning that the ‘Clusters’ in the data modelling tool can be visualised and compared to ‘true’ clusters. In addition to this, Apriori can compute the rules that come with minimum support. With Weka, you can connect classifiers, data sources and other elements graphically.

A great program with core data mining algos

Overall, Weka download is an excellent choice for data mining with a complete set of algorithms. While the interface is simple, it requires you to possess some knowledge of machine learning. The program runs smoothly on multiple versions of the Windows operating system, but can experience occasional lags and crashes. Having said that, it’s still a great choice for developing new machine learning schemes.



Weka 3.9.6 for Windows
  • Windows 8,
  • Windows XP,
  • Windows Vista,
  • Windows 10,
  • Windows 7
Latest update:
Tuesday, June 7th 2022
Weka Development Team


Weka for PC


Weka Development Team(Free)

User rating7


We don't have any change log information yet for version 3.9.6 of Weka. Sometimes publishers take a little while to make this information available, so please check back in a few days to see if it has been updated.

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