Explain how the Web enables effective collaborative computing. Discuss the similarities and differences among WebEx, Microsoft NetMeeting and Novell Groupwise software (in less than 300 words).
How is text mining different from traditional data mining? Give three examples where text mining is very useful for supporting business operations. Discuss the main differences between IBM SPSS and SAS. (in less than 500 words).
Read the resource material available on the course website about WEKA (in Week 5 and Week 6). Download WEKA software and install it onto your computer (ensure the bundled Java Runtime Environment, i.e. jre is installed). After successful installation of the program, classify iris from the data iris.arff using J48 classifier (keep other parameters as default). Write an analysis report based on the classification results. You need to include the results in your report.