Category Archives: Data Mining

This is why you should visualize your data!

In the data science and data mining communities, several practitioners are applying various algorithms on data, without attempting to visualize the data.  This is a big mistake because sometimes, visualizing the data greatly helps to understand the data. Some phenomena are obvious … Continue reading

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An Introduction to Sequential Pattern Mining

In this blog post, I will give an introduction to sequential pattern mining, an important data mining task with a wide range of applications from text analysis to market basket analysis.  This blog post is aimed to be a short … Continue reading

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An Introduction to Data Mining

In this blog post, I will introduce the topic of data mining. The goal is to give a general overview of what is data mining. What is data mining? Data mining is a field of research that has emerged in … Continue reading

Posted in Data Mining, Data science, General | 2 Comments

An introduction to frequent subgraph mining

In this blog post, I will give an introduction to an interesting data mining task called frequent subgraph mining, which consists of discovering interesting patterns in graphs. This task is important since data is naturally represented as graph in many domains (e.g. … Continue reading

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We are launching a new data mining journal

In this blog post, I will discuss one of my recent and current project. I have been recently working with my colleague Chun-Wei Lin on launching a new journal, titled “Data Science and Pattern Recognition“. This is a new open-access journal, … Continue reading

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Introduction to clustering: the K-Means algorithm (with Java code)

In this blog post, I will introduce the popular data mining task of clustering (also called cluster analysis).  I will explain what is the goal of clustering, and then introduce the popular K-Means algorithm with an example. Moreover, I will briefly explain how an open-source Java implementation of … Continue reading

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Introduction to time series mining with SPMF

This blog post briefly explain how time series data mining can be performed with the Java open-source data mining library SPMF (v.2.06).  It first explain what is a time series and then discuss how data mining can be performed on time series. What is … Continue reading

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Postdoctoral positions in data mining in Shenzhen, China (apply now)

The CIID research center of the Harbin Institute of Technology (Shenzhen campus, China) is looking to hire two postdoctoral researchers to carry research on data mining / big data. The applicant must have: a Ph.D. in computer Science, a strong research background in data mining/big … Continue reading

Posted in artificial intelligence, Big data, Data Mining, Research | 1 Comment

The KDDCup 2015 dataset

The KDD cup 2015 dataset is about MOOC dropout prediction. I have  had recently found that the dataset had been offline on the official website. Thus, I have uploaded a copy of the KDD cup 2015 dataset on my website. You can download … Continue reading

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Discovering hidden patterns in texts using SPMF

This tutorial will explain how to analyze text documents to discover complex and hidden relationships between words.  We will illustrate this with a Sherlock Holmes novel. Moreover we will explain how hidden patterns in text can be used to recognize the author of a … Continue reading

Posted in Big data, Data Mining, Data science, Open-source | 6 Comments