Data Mining Concepts and Techniques phần 1 potx

... 665 11 .3.2 Statistical Data Mining 666 11 .3.3 Visual and Audio Data Mining 667 11 .3.4 Data Mining and Collaborative Filtering 670 11 .4 Social Impacts of Data Mining 675 11 .4 .1 Ubiquitous and ... Prototypes 660 11 .2 .1 How to Choose a Data Mining System 660 11 .2.2 Examples of Commercial Data Mining Systems 663 11 .3 Additional Themes on Data M...

Ngày tải lên: 08/08/2014, 18:22

... min sup} (10 ) } (11 ) return L = ∪ k L k ; procedure apriori gen(L k 1 :frequent (k 1) -itemsets) (1) for each itemset l 1 ∈ L k 1 (2) for each itemset l 2 ∈ L k 1 (3) if (l 1 [1] = l 2 [1] ) ∧(l 1 [2] ... d 9 , d 10 ), and (3) (d 1 , d 2 , c 3 , d 4 , , d 9 , d 10 ), where a 1 = d 1 , b 2 = d 2 , and c 3 = d 3 . The measure of the cube is count. 220 Chapter 4...

Ngày tải lên: 08/08/2014, 18:22

... 0 .10 C 0 .16 0.36 0.28 0.20 G 0 .15 0.35 0.36 0 .14 T 0.09 0.37 0.36 0 .18         (8 .11 ) CpG − =         A C G T A 0.27 0 .19 0. 31 0.23 C 0.33 0. 31 0.08 0.28 G 0.26 0.24 0. 31 0 .19 T ... substructures. 9. Metadata mining. Metadata are data about data. Metadata provide semi-structured data about unstructured data, ranging from text and Web data to multi...

Ngày tải lên: 08/08/2014, 18:22

... get χ 2 = (250−90) 2 90 + (50− 210 ) 2 210 + (200−360) 2 360 + (10 00−840) 2 840 = 284.44+ 12 1.90+ 71. 11+ 30.48 = 507.93. For this 2 × 2 table, the degrees of freedom are (2 1) (2 1) = 1. For 1 degree of freedom, ... approximately 10 0 f i % of the data are below or equal to the value, x i . We say “approximately” because 2.5 Data Reduction 83 25 20 15  10  5 0 1 10 11...

Ngày tải lên: 08/08/2014, 18:22

... item, and year. 4 .1 Efficient Methods for Data Cube Computation 17 7 a 1 :3 2 b* :1 3 b 1 :2 c* :1 4 d* :1 5 c*:2 d*:2 b* :1 3 c* :1 4 BCD :1 1 root:5 1 a 2 :2 b*:2 c 3 :2 d 4 :2 d* :1 5 a 1 CD/a 1 :1 a 1 b*D/a 1 b* :1 3 d* :1 5 a 1 b*c*/a 1 b*c* :1 4 Base–Tree ... quarter year dollars sold 10 01 TV 15 10 Q4 2003 250.60 10 02 TV 23 10 Q4 2003 17 5.00...

Ngày tải lên: 08/08/2014, 18:22

... on this partitioning is Gini income ∈ {low,medium} (D) = 10 14 Gini(D 1 ) + 4 14 Gini(D 2 ) = 10 14  1  6 10  2 −  4 10  2  + 4 14  1  1 4  2 −  3 4  2  = 0.450 = Gini income ∈ {high} (D). Similarly, ... O j = 1 1+e −I j ; }// compute the output of each unit j (10 ) // Backpropagate the errors: (11 ) for each unit j in the output layer (12 ) Err j = O j...

Ngày tải lên: 08/08/2014, 18:22

... follows: t = err(M 1 ) −err(M 2 )  var(M 1 −M 2 )/k , (6.68) where var(M 1 −M 2 ) = 1 k k ∑ i =1  err(M 1 ) i −err(M 2 ) i −( err(M 1 ) −err(M 2 ))  2 . (6.69) To determine whether M 1 and M 2 are ... estimated as var(M 1 −M 2 ) =  var(M 1 ) k 1 + var(M 2 ) k 2 , (6.70) and k 1 and k 2 are the number of cross-validation samples (in our case, 10 -fold cross- v...

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....

Ngày tải lên: 08/08/2014, 18:22

... t 1 t 2 t 3 t 4 t 5 t 6 t 7 d 1 0 4 10 8 0 5 0 d 2 5 19 7 16 0 0 32 d 3 15 0 0 4 9 0 17 d 4 22 3 12 0 5 15 0 d 5 0 7 0 9 2 4 12 634 Chapter 10 Mining Object, Spatial, Multimedia, Text, and Web Data These equations ... multimedia data mining focuses on image data mining. Mining text data and mining the World Wide Web are studied in the two subsequent 638 Cha...

Ngày tải lên: 08/08/2014, 18:22

... multidimen- sional databases. SIGMOD Record, 26 :12 17 , 19 97. [BS97b] A.BersonandS.J.Smith.DataWarehousing,DataMining,andOLAP.McGraw-Hill ,19 97. [BST99] A. Berson, S. J. Smith, and K. Thearling. Building Data Mining ... analysis, multirelational and multidatabase data mining, data privacy protection, and data security. Exercises 11 .1 Research anddescribe an application...

Ngày tải lên: 08/08/2014, 18:22