solution02 - INFS4203/INFS7203 Data Mining (2008) Solution...

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INFS4203/INFS7203 Data Mining (2008) – Solution for Assignment 2 Document Representation: Step 1 – Remove Preposition Document 1: Linux is an open source operating system One of the most famous developers for Linux is RedHat Conceptually open source is good. Document 2: Most people use Windows not open source rather than Linux open source Yet using Linux is not difficult Document 3: The School of Information Technology and Electrical Engineering has more than 300 students It does not have any opening currently Step 2 – Remove Stopword Document 1: Linux is an open source operating system One of the most famous developers for Linux is RedHat Conceptually open source is good Document 2: Most people use Windows not open source rather than Linux open source Yet using Linux is not difficult Document 3: The School of Information Technology and Electrical Engineering has more than 300 students It does not have any opening currently Note: 1. Some words can be arguable, such as “use”. You can consider it as stopword or not. However, some words (e.g. “not”, “most”) should normally be classified as stopwords UNLESS you can provide justifications (e.g. you claim that you based your decisions on some existing stopword lists found on some web sites). Step 3 – Cover to lower case Document 1: linux open source operating system famous developers linux redhat conceptually open source good Document 2:
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solution02 - INFS4203/INFS7203 Data Mining (2008) Solution...

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