Data Mining Concepts and Techniques phần 6 ppt

... test-3: 6. 16 Summary 373 0.0 0.0 0.2 0.4 0 .6 0.8 1.0 0.2 0.4 0 .6 0.8 1.0 true positive rate false positive rate Figure 6. 33 The ROC curves of two classification models. 6. 16 Summary Classification and ... functions (Hanson and Burr [HB88]), dynamic adjustment of the network topology (Me´zard and Nadal [MN89], Fahlman and Lebiere [FL90], Le Cun, Denker, and Solla [LDS90],...

Ngày tải lên: 08/08/2014, 18:22

... the tuples that it covers and see what percentage of them the rule can correctly classify. Example 6. 6 Rule accuracy and coverage. Let’s go back to our data of Table 6. 1. These are class-labeled tuples ... The backpropagation algorithm is described in Section 6. 6.3. Rule extraction from trained neural networks is discussed in Section 6. 6.4. 6. 6.1 A Multilayer Feed-Forward Neur...

Ngày tải lên: 08/08/2014, 18:22

... Mining 66 5 11.3.2 Statistical Data Mining 66 6 11.3.3 Visual and Audio Data Mining 66 7 11.3.4 Data Mining and Collaborative Filtering 67 0 11.4 Social Impacts of Data Mining 67 5 11.4.1 Ubiquitous and ... Prototypes 66 0 11.2.1 How to Choose a Data Mining System 66 0 11.2.2 Examples of Commercial Data Mining Systems 66 3 11.3 Additional Themes on Dat...

Ngày tải lên: 08/08/2014, 18:22

... (inclusive). 2.3 Data Cleaning 65 2.3.3 Data Cleaning as a Process Missing values, noise, and inconsistencies contribute to inaccurate data. So far, we have looked at techniques for handling missing data and ... 97 2.7 Summary Data preprocessing is an important issue for both data warehousing and data mining, as real-world data tend to be incomplete, noisy, and in...

Ngày tải lên: 08/08/2014, 18:22

... and lacks flexibility due to the difficulty in achieving 166 Chapter 4 Data Cube Computation and Data Generalization b 3 b 2  b 1  b 0 B C c 3  c 2   c 1   61 45 29 62 46 30 63 47 31 64 48 32 c 0 a 0 a 1 A a 2 a 3 1 5 9 13 ... processing, and data mining. We also introduce on-line analytical mining (OLAM), a powerful paradigm that integrates OLAP with data...

Ngày tải lên: 08/08/2014, 18:22

... include data cube–based data aggregation and attribute- oriented induction. From a data analysis point of view, data generalization is a form of descriptive data mining. Descriptive data mining ... Subramanian and Feigenbaum [SF86b]. Overviews of machine learning techniques can be found in Dietterich and Michalski [DM83], Michalski, Carbonell, and Mitchell [MCM 86] ,...

Ngày tải lên: 08/08/2014, 18:22

... efficiently. 8 Mining Stream, Time-Series, and Sequence Data Our previous chapters introduced the basic concepts and techniques of data mining. The techniques studied, however, were for simple and structured ... structured data sets, such as data in relational databases, transactional databases, and data warehouses. The growth of data in various complex forms (e.g....

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... substructures. 9. Metadata mining. Metadata are data about data. Metadata provide semi-structured data about unstructured data, ranging from text and Web data to multimedia data- bases. It is useful for data ... itemset stream mining; the Hoeffding tree, VFDT, and CVFDT algorithms for stream data classification; and the STREAM and CluStream algorithms for stream data...

Ngày tải lên: 08/08/2014, 18:22

... multimedia data mining focuses on image data mining. Mining text data and mining the World Wide Web are studied in the two subsequent 63 8 Chapter 10 Mining Object, Spatial, Multimedia, Text, and Web Data where ... closely linked to image analysis and scientific data mining, and thus many image analysis techniques and scien- tific data analysis methods can be...

Ngày tải lên: 08/08/2014, 18:22

... constraint-based mining) , the integration of data mining with data warehousing and database systems, the standardization of data mining languages, visualization methods, and new meth- ods for handling ... complex data types. Other trends include biological data mining, mining software bugs, Web mining, distributed and real-time mining, graph mining, social network...

Ngày tải lên: 08/08/2014, 18:22