Data Mining: Exploring Data Lecture Notes for Chapter 3 Introduction to Data Mining potx

... a Data Mining Model Mining Model DM Engine Data To Predict DM Engine Predicted Data Training Data Mining Model To create a model, you must assemble a set of data where the attributes to ... applied to future data to predict outcomes or classify data. Topic Objective To explain the methodology for creating a mining model and to define terminology. Le...

Ngày tải lên: 24/01/2014, 19:20

... returned to the pool and reused, an application can handle a large number of CHAPTER 5 ■ INTRODUCTION TO DATA ACCESS 1 63 9187ch05CMP2.qxd 7/26/07 12:19 PM Page 1 63 Introduction to Data Access W elcome ... server, which is notoriously expensive, but the database server also needs to do a lot of work before it’s ready to accept requests from the client. CHAPTER 5 ■...

Ngày tải lên: 05/10/2013, 04:20

... www.verypdf.com to remove this watermark. 1.1 Variable-Length Codes 37 Values Gamma Delta Omega 1112 234 3 33 44 4554 5–7 5 5 5 8–15 7 8 6–7 16 31 9 9 7–8 32 – 63 11 10 8–10 64–88 13 11 10 100 13 11 11 1000 ... Details 130 4 .3 Underflow 133 4.4 Final Remarks 134 Intermezzo: The Real Numbers 135 4.5 Adaptive Arithmetic Coding 137 4.6 Range Encoding 140 Chapter Summary 141 5 I...

Ngày tải lên: 14/12/2013, 15:15

... 11|100 a 3 a 1 a 1 0 110|100 a 4 a 1 a 1 0 101 a 2 1 1|101 a 4 0 11|101 a 3 a 1 1 110|101 a 4 a 1 1 110 − 3 1|110 a 3 a 1 0 11|110 a 3 a 2 0 110|110 a 4 a 2 0 111 a 3 0 1|111 a 3 1 11|111 a 3 2 110|111 ... sequence 5, 2, 7, 9, and 16. These five numbers add up to 39 , so dividing them by 39 produces the five probabilities 5 /39 , 2 /39 , 7 /39 , 9 /39 , and 15 /39 . The Huffm...

Ngày tải lên: 14/12/2013, 15:15

... 6145–8192 6 2 9–12 16 7 257 38 4 26 12 81 93 12288 7 2 13 16 17 7 38 5–512 27 12 12289–1 638 4 8 3 17–24 18 8 5 13 768 28 13 1 638 5–24576 9 3 25 32 19 8 769–1024 29 13 24577 32 768 Table 3. 10: Thirty Prefix Distance ... 0 1 10 4 33 –48 20 9 1025–1 536 1 0 2 11 4 49–64 21 9 1 537 –2048 2 0 3 12 5 65–96 22 10 2049 30 72 3 0 4 13 5 97–128 23 10 30 73 4096 4 1 5,6 14 6 129–192 2...

Ngày tải lên: 14/12/2013, 15:15

... -33 -32 32 33 63 1111110 7: -127 -126 -125 -65 -64 64 65 127 11111110 . . . . . . 14: -1 638 3 -1 638 2 -1 638 1 -81 93 -8192 8192 81 93 1 638 3 111111111111110 15: -32 767 -32 766 -32 765 -1 638 5 ... Chrominance Table 5 .30 : Recommended Quantization Tables. 135 7911 131 5 35 7911 131 517 5 7 9 11 13 15 17 19 7 9 11 13 15 17 19 21 911 131 5171921 23 11 13 15 17 19...

Ngày tải lên: 14/12/2013, 15:15

... step is to decompose the top-left subband into four smaller ones. 01 23 10 16 18 40 42 48 50 51 54 55 5756 60 61 5958 62 63 52 53 8 21 27 29 19 22 28 30 20 25 31 33 23 26 32 34 24 9 15 17 39 41 47 49 7 6 12 14 36 38 44 46 5 11 13 35 37 43 45 4 Figure ... t=(1:n)./n; dat=sin(2*pi*t) filt=[0.4 830 0. 836 5 0.2241 -0.1294]; wc=fwt1(dat,1,filt) which outputs dat= 0 .38...

Ngày tải lên: 14/12/2013, 15:15

... + 0.950625 × 0.998162=0.99462270125 a 2 0.0677 632 2625 + 0.92685 937 5 × 0.0 231 62=0.089 231 2 430 937 5 0.0677 632 2625 + 0.92685 937 5 × 0.998162=0.992919 133 71875 Table Ans.7: Encoding the String a 2 a 2 a 2 a 2 . 4.2. ... 229– 231 compression factor, 17, 2 73 compression gain, 17, 2 73 compression performance measures, 16–17 compression ratio, 16, 2 73 compressor (definition of), 14...

Ngày tải lên: 14/12/2013, 15:15

... trees. The codes sizes for the trees are (5+5+5+5·2 +3 3+ 3·5 +3 5 + 12) /30 = 76 /30 , (5+5+4+4·2+4 3+ 3·5 +3 5 + 12) /30 = 76 /30 , (6+6+5+4·2 +3 3+ 3·5 +3 5 + 12) /30 = 76 /30 . 286 Answers to Exercises (a) AB 2 5 8 (b) ... Answers to Exercises s3 2 0 i3 0 1 1 6 1 r1 0 4 0 2 1 d1 esc 0 1 1 (j). Input: s. Output: 10. esc d 1 1 r 1  2 2 s 3 i 3 46 s3 3 0 i3 0 1 1 6 1 r1 0 5 0 2...

Ngày tải lên: 14/12/2013, 15:15

... composed of summary data? No. Data marts can contain detailed data in addition to summarized data. Using summarized data marts is a way to enhance query performance. 3. Do you need to purchase Microsoft ... used to provide context for the numeric data stored in the fact table. For example, a user may request monthly sales data measured by customer and by region....

Ngày tải lên: 21/12/2013, 19:15