Author Archives: Philippe Fournier-Viger

Test your knowledge about pattern mining!

Today, I publish a small quiz to test your knowledge about pattern mining. There are 10 questions, which are then followed by the answers. Those questions are not very hard 😉 How many can you get right? Questions Answers Tell … Continue reading

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Visualizing the item frequency distribution of pattern mining datasets

In this blog post, I will explain a quick and easy way of visualizing the frequency distribution of items in a dataset in SPMF format for pattern mining. To do this, we will use a new online tool that I … Continue reading

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An Online Tool to Draw FP-Trees

This blog post is to introduce a new tool made of HTML5 and JavaScript for drawing FP-trees, which you can access here: https://www.philippe-fournier-viger.com/tools/draw_fptree.php If you are not familiar with FP-trees, the FP-tree is a data structure used in the field of … Continue reading

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A yet more efficient high utility itemset mining algorithm (HAMM, to appear in IEEE TKDE)

Today, I will share the good news that I have participated as co-author in a paper proposing a new algorithm for high utility itemset mining called HAMM that is very efficient, and outperforms the state-of-the-art algorithm. This is not an … Continue reading

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How to count the frequency of words and ngrams in a text document? – Two online tools

I have added two new webpages offering tools to count the frequency of each word and ngrams (consecutive sequences of words) in a text document. These webpages can be found here: The Word Frequency Counter First, let me show you … Continue reading

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Introduction to Rare Itemset Mining

In the last decades, many data mining algorithms were developed to find interesting patterns in data (pattern mining). In particular, a lot of studies have been done about discovering frequent patterns (patterns that appear frequently) in a data. A classic … Continue reading

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Free Pattern Mining Course

Hi all, this is to let you know that I have developed a free pattern mining course that you can watch online.  The course is designed to introduce students or researchers to the different topics of pattern mining and explain … Continue reading

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What is a maximal itemset?

In data mining, an itemset is a collection of items that occur together in a transactional dataset. For example, if we have a dataset of customer purchases, an itemset could be {bread, cake, orange}, meaning that these three items were … Continue reading

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A Glossary of High Utility Pattern Mining

Today, I present a glossary of key terms usedin high utility itemset mining. This glossary will be useful to researchers and practitioners working on this important subtopic of pattern mining. By the way, if you are new to this research … Continue reading

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My paper is rejected. Can I appeal the editor’s decision?

Today, I will talk about what to do when a paper is rejected from a journal, and more specifically if it is possible to appeal the editor’s decision, and then what are the chance of success? Generally, if a researcher … Continue reading

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