Tag Archives: java

An Improved Pattern Viewer

Posted on 2025-04-18 by Philippe Fournier-Viger

Today, I will talk about some features of the upcoming version of SPMF 2.63 that I am working on and is planned for release next month. Improved Pattern Visualizer window The first feature is an improvement of the Pattern Viewer … Continue reading →

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SPMF 2.62 is released!

Posted on 2024-06-13 by Philippe Fournier-Viger

This is a short blog post to announce that SPMF 2.62 is released, and can be downloaded from the SPMF website‘s download page. The previous version of SPMF (2.60) introduced a lot of new features, also with some code refactoring, … Continue reading →

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SPMF 2.60 is released!

Posted on 2024-04-21 by Philippe Fournier-Viger

This is a short message today to announce that the new version of SPMF 2.60 is finally released! This is a major version as it contains many new things. The full lists of changes can be found on the download … Continue reading →

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How to download an offline copy of the SPMF documentation?

Posted on 2024-04-15 by Philippe Fournier-Viger

Today, I will show you how to download an offline copy of the SPMF documentation. In the upcoming version 2.60 of SPMF, you can run this algorithm to open the windows of developpers tools: Then you can click here to … Continue reading →

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SPMF: upcoming feature: The Memory Viewer

Posted on 2023-07-17 by Philippe Fournier-Viger

Today, I would like to introduce an upcoming feature that will be released in the next version of SPMF (v. 2.60). It is a tool called the Memory Viewer. This tool is very simple yet useful for investigating the performance … Continue reading →

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What is a Closed Itemset and Why is it Useful?

Posted on 2023-03-31 by Philippe Fournier-Viger

In this blog post, I will explain in simple terms what is a closed itemset and give some examples. I will also mention a few algorithms that can be used to find closed itemsets and that they can be found … Continue reading →

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Efficiency problems with using java.util.Hashmap

Posted on 2023-02-20 by Philippe Fournier-Viger

Today, I will talk about some efficiency problems when using the java.util.Hashmap data structure provided by Java. This is an important topics for programmers that aim at implementing efficient software that rely on maps. Brief review about HashMap First, let’s … Continue reading →

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SPMF’s architecture (5) The Graphical User Interface

Posted on 2023-02-14 by Philippe Fournier-Viger

This is the fifth post of a series of blog posts about the architecture of the SPMF data mining library. Today, I will specifically talk about the graphical user interface of SPMF, its main components and how it interacts with … Continue reading →

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SPMF’s architecture (4) The MemoryLogger

Posted on 2023-02-07 by Philippe Fournier-Viger

Today, I will continue the series of blog posts to explain the architecture of the SPMF data mining library, and I will talk in particular about a module in SPMF called the MemoryLogger. This module is responsible for recording the … Continue reading →

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SPMF’s architecture (3) The Preference Manager

Posted on 2023-01-31 by Philippe Fournier-Viger

This is the third of a series of blog posts about the architecture of the SPMF data mining library. Today, I will explain the role of another an internal module in SPMF, called the Preference Manager. This module is used … Continue reading →

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