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Information Systems

Loosely speaking, information systems (IS) consist of all resources in an enterprise. These sources can be existed in a various of formats. Searching in this field is to find new methods to store and treat to its data.

The UPGMA algorithm

The UPGMA (Unweighted Pair Group Method with Arithmetic Mean) is a simple agglomerative or hierarchical clustering method. It is one of the most popular methods in ecology for the classification of sampling units (such as vegetation plots) on the basis ...

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What is e-commerce?


Nowadays, this term is defined as various of views. As a scientist, I would like to simplify it as much as possible. Loosely speaking, e-commerce (also written in forms eCommerce or E-commerce) is a business process done via internet.

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Hadoop: What It Is And How It Works

http://readwrite.com/2013/05/23/hadoop-what-it-is-and-how-it-works http://www.slideshare.net/andrewjbrust/big-data-strategy-for-the-relational-world http://www.capgemini.com/thought-leadership/making-big-data-work http://www-01.ibm.com/software/data/bigdata/ http://www-03.ibm.com/security/solution/intelligence-big-data/ Big Data and NoSQL for Database and BI Pros from Andrew Brust

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Khai thác thông tin bệnh nhân trong lĩnh vực chăm sóc sức khỏe

Tình cờ đọc một bài viết trên tạp chí Big Data Download, tôi thấy nội dung tuy đơn giản nhưng phản ánh được thông tin mà nhiều người quan tâm. Tôi mạo muội lấy một số ý của bài viết ...

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Research Topics in Information Systems

Tôi lấy nội dung từ trường đại học CarnegieMellon Tepper – School of Business để tiện cho những ai muốn tìm hiểu và nghiên cứu sâu hơn về các chủ đề chính trong lĩnh vực hệ thống thông tin RESEARCH ...

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Supervised vs. Unsupervised learning


Machine learning algorithms are described as either ‘supervised’ or ‘unsupervised’. The distinction is drawn from how the learner classifies data. In supervised algorithms, the classes are predetermined. These classes can be conceived of as a finite set, previously arrived at ...

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Categorical Clustering vs Topical Clustering

clustering example

In this post, I will give you some useful references about these two types of clustering methods: categorical vs topical clustering. Categorical Clustering: ROCK algorithm http://rss.acs.unt.edu/Rdoc/library/cba/html/rockCluster.html http://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R/Clustering/RockCluster Topical Clustering: Sahimi (1996), Applying the Multiple Cause Mixture Model to Text Categorization, ...

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Data Clustering

http://jamesmccaffrey.wordpress.com/2013/05/06/data-clustering-using-category-utility/ http://msdn.microsoft.com/en-us/magazine/dn198247.aspx

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Cluster Analysis

Statistica http://www.statsoft.com/textbook/cluster-analysis/

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Synchronize MySQL databases between Ubuntu and Windows

Solution 1:  Unify the folder data of XAMPP on Ubuntu and Windows. Both of the operating systems point to the same folder. See more details in the following post: http://stackoverflow.com/questions/4638981/is-it-possible-to-use-the-same-mysql-database-for-windows-xampp-and-linux-mysql/14368403#14368403 Solution 2:  Install a mini Linux distribution such as Slitaz, ...

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