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Data Mining Concepts and Techniques phần 5 ppt

Data Mining Concepts and Techniques phần 5 ppt

Data Mining Concepts and Techniques phần 5 ppt

... C4 .5, and CART, has been well established for rel-atively small data sets. Efficiency becomes an issue of concern when these algorithmsare applied to the mining of very large real-world databases. ... the themeof classification from a database-oriented perspective.6.4 Bayesian Classification 311the attributes age and income, respectively, and that X is a 35- year-old customer withan income ... personfrom our set of customers is 35 years old and earns $40,000.“How are these probabilities estimated?” P(H), P(X|H), and P(X) may be estimatedfrom the given data, as we shall see below. Bayes’...
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Data Mining Concepts and Techniques phần 6 ppt

Data Mining Concepts and Techniques phần 6 ppt

... inCooper and Herskovits [CH92], Buntine [Bun94], and Heckerman, Geiger, and Chick-ering [HGC 95] . Algorithms for inference on belief networks can be found in Russell and Norvig [RN 95] and Jensen ... 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], and Harp, Samad, and Guha [HSG90] ), and ... such as Duda et al. [DHS01] and James [Jam 85] , as well as articles by Cover and Hart [CH67] and Fukunaga and Hummels [FH87]. Their integration with attribute-weighting and the pruning of noisy...
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Data Mining Concepts and Techniques phần 1 potx

Data Mining Concepts and Techniques phần 1 potx

... Data Mining 66611.3.3 Visual and Audio Data Mining 66711.3.4 Data Mining and Collaborative Filtering 67011.4 Social Impacts of Data Mining 6 75 11.4.1 Ubiquitous and Invisible Data Mining 6 75 11.4.2 ... object-relational databases and specific application-oriented databases, such as spatial databases, time-series databases,text databases, and multimedia databases. The challenges and techniques of mining ... a Data Mining System 66011.2.2 Examples of Commercial Data Mining Systems 66311.3 Additional Themes on Data Mining 6 65 11.3.1 Theoretical Foundations of Data Mining 6 65 11.3.2 Statistical Data...
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Data Mining Concepts and Techniques phần 2 ppsx

Data Mining Concepts and Techniques phần 2 ppsx

... (inclusive).2.3 Data Cleaning 65 2.3.3 Data Cleaning as a ProcessMissing values, noise, and inconsistencies contribute to inaccurate data. So far, we havelooked at techniques for handling missing data and ... A set of unit price data for items sold at a branch of AllElectronics.Unit price ($) Count of items sold40 2 75 43 30047 250 74 360 75 5 15 78 54 0 1 15 320117 270120 350 there may not be ... 972.7Summary Data preprocessing is an important issue for both data warehousing and data mining, as real-world data tend to be incomplete, noisy, and inconsistent. Data preprocessingincludes data cleaning,...
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Data Mining Concepts and Techniques phần 3 docx

Data Mining Concepts and Techniques phần 3 docx

... processing, and data mining. We also introduce on-line analytical mining (OLAM), a powerful paradigm thatintegrates OLAP with data mining technology.3 .5. 1 Data Warehouse Usage Data warehouses and data ... Warehouse and OLAP Technology: An Overview3 .5 From Data Warehousing to Data Mining “How do data warehousing and OLAP relate to data mining? ” In this section, we study theusage of data warehousing ... memory. 152 Chapter 3 Data Warehouse and OLAP Technology: An Overview data by OLAP operations), and data mining (which supports knowledge discovery).OLAP-based data mining is referred to as OLAP mining, ...
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Data Mining Concepts and Techniques phần 4 potx

Data Mining Concepts and Techniques phần 4 potx

... count sales countAsia 15 300 120 1000 1 35 1300Europe 12 250 150 1200 162 1 450 NorthAmerica 28 450 200 1800 228 2 250 all regions 45 1000 470 4000 52 5 50 00Generalized data can be presented graphically, ... 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 ... a2 and its projected database. Similar pruning can be donefor a3, , a 50 as well. Thus the mining of closed frequent itemsets in this data setterminates after mining a1’s projected database.Item...
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Data Mining Concepts and Techniques phần 7 ppsx

Data Mining Concepts and Techniques phần 7 ppsx

... 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 relationaldatabases, transactional databases, and data warehouses. The growth of data in variouscomplex forms (e.g., semi-structured and unstructured, spatial and ... telecommu-nications data, transaction data from the retail industry, and data from electric powergrids. Traditional OLAP and data mining methods typically require multiple scans ofthe data and are therefore...
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Data Mining Concepts and Techniques phần 8 potx

Data Mining Concepts and Techniques phần 8 potx

... 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 ... of sequence data include cus-tomer shopping sequences, Web clickstreams, and biological sequences. 54 8 Chapter 9 Graph Mining, Social Network Analysis, and Multirelational Data Mining graph. ... that in frequent itemset mining, because there are many waysto join two substructures. 55 4 Chapter 9 Graph Mining, Social Network Analysis, and Multirelational Data Mining NNNNOO(a) caffeineNNSOONNNNOONNNNOO(b)...
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Data Mining Concepts and Techniques phần 9 pot

Data Mining Concepts and Techniques phần 9 pot

... multimedia data mining focuses on image data mining. Mining text data and mining the World Wide Web are studied in the two subsequent638 Chapter 10 Mining Object, Spatial, Multimedia, Text, and Web Data where ... t1t2t3t4t 5 t6t7d10 4 10 8 0 5 0d2 5 19 7 16 0 0 32d3 15 0 0 4 9 0 17d422 3 12 0 5 15 0d 5 0 7 0 9 2 4 12634 Chapter 10 Mining Object, Spatial, Multimedia, Text, and Web Data These equations ... inbroadcast data streams, and in personal and professional databases. This amount is rapidly growing.There are great demands for effective content-based retrieval and data mining methodsfor audio and...
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Data Mining Concepts and Techniques phần 10 pot

Data Mining Concepts and Techniques phần 10 pot

... 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 ... B. Xia, and O. R. Zaïane. DBMiner: A system for mining knowledge inlarge relational databases. In Proc. 1996 Int. Conf. Data Mining and Knowledge Discovery(KDD’96), pages 250255 , Portland, OR, ... complex data types. Other trends include biological data mining, mining software bugs, Web mining, distributed and real-time mining, graph mining, social network analysis, multirelational and multidatabase...
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