applying data mining classification techniques for employees performance prediction
Data Mining Classification: Alternative Techniques - Lecture Notes for Chapter 5 Introduction to Data Mining pdf
... Uses k “closest” points (nearest neighbors) for performing classification © Tan,Steinbach, Kumar Introduction to Data Mining 43 Nearest Neighbor Classification Scaling issues – Attributes ... Tan,Steinbach, Kumar Introduction to Data Mining 36 Instance Based Classifiers Examples: – Rote-learner • Memorizes entire training data and performs classification only if attributes of record ... = X w w X ≅ 1 if X makes accurate prediction most of the time w X > 1 if X is not reliable for making predictions © Tan,Steinbach, Kumar Introduction to Data Mining 12 Rule Ordering Schemes Rule-based...
Ngày tải lên: 15/03/2014, 09:20
Data Mining Classification: Basic Concepts, Decision Trees, and Model Evaluation Lecture Notes for Chapter 4 Introduction to Data Mining pptx
... trees – Accuracy is comparable to other classification techniques for many simple data sets © Tan,Steinbach, Kumar Introduction to Data Mining 9 Apply Model to Test Data Refund MarSt TaxInc YES NO NO NO Yes ... Tan,Steinbach, Kumar Introduction to Data Mining 3 Illustrating Classification Task © Tan,Steinbach, Kumar Introduction to Data Mining 13 Apply Model to Test Data Refund MarSt TaxInc YES NO NO NO Yes ... Attributes Training Data Model: Decision Tree © Tan,Steinbach, Kumar Introduction to Data Mining 8 Decision Tree Classification Task Decision Tree © Tan,Steinbach, Kumar Introduction to Data Mining 35...
Ngày tải lên: 15/03/2014, 09:20
modeling with data tools and techniques for scientific computing oct 2008
... test_ct = 5e6; 4 double data[ ] = { 30, 86, 5 24, 38 }; 6 apop _data * testdata = apop_line_to _data( data,0,2,2); 7 for (i = 0; i< test_ct; i++) 8 apop_test_fisher_exact(testdata); 9 } Listing 1.5 ... times. Online source: . 1 test_ct <− 5e6 2 data <− c( 30, 86, 3 24, 38 ) 4 testdata<− matrix (data, nrow=2) 5 for (i in 1:test_ct){ 6 fisher.test(testdata) 7 } Listing 1.6 R code to do the same ... like the debugger and profiler • Methods for reliability testing functions and making them more robust • Databases, and how to get them to produce data in the format you need • Talking to external...
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Optimizing and Testing WLANs: Proven Techniques for Maximum Performance pdf
Ngày tải lên: 27/06/2014, 00:20
Data Mining Techniques: For Marketing, Sales, and Customer Relationship Management - Second Edition
... that, on a technical level, the data mining effort is working and the data is reasonably accurate. This can be quite comforting. If the data and the data mining techniques applied to it are powerful ... resolve these issues. Data mining can help make more informed decisions. It can suggest tests to make. Ultimately, though, the business needs What Is Data Mining? Data mining, as we use the ... of techniques to apply in a particular situation depends on the nature of the data mining task, the nature of the available data, and the skills and preferences of the data miner. Data mining...
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John wiley sons data mining techniques for marketing sales_20 pptx
... level data, 96 publications Building the Data Warehouse (Bill Inmon), 474 Business Modeling and Data Mining (Dorian Pyle), 60 Data Preparation for Data Mining (Dorian Pyle), 75 The Data ... discussed, 7 Data Preparation for Data Mining (Dorian Pyle), 75 The Data Warehouse Toolkit (Ralph Kimball), 474 data warehousing customer patterns, 5 for decision support, 13 discussed, 4 database ... Business Modeling and Data Mining, 60 Data Preparation for Data Mining, 75 470643 bindex.qxd 3/8/04 11:08 AM Page 619 C Index 619 calculations, probabilities, 133–135 call detail databases, 37 call-center...
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John wiley sons data mining techniques for marketing sales_2 pptx
... analyzing data on the information. can provide value. into actionable information using data mining techniques. Identify Transform data 1 2 3 4 5 6 7 8 9 10 Measure the results of the efforts ... of data mining in practice. Figure 2.1 shows the four stages: 1. Identifying the business problem. 2. Mining data to transform the data into actionable information. 3. Acting on the information. ... the data mining techniques discussed in this book are suitable for use in prediction so long as training data is available in the proper form. The 470643 c02.qxd 3/8/04 11:09 AM Page 21 of Data...
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John wiley sons data mining techniques for marketing sales_4 pdf
... before. The newly discovered relationships suggest new hypotheses to test and the data mining process begins all over again. Lessons Learned Data mining comes in two forms. Directed data mining ... California based on data that excludes calls to Los Angeles. Step Six: Transform Data to Bring Information to the Surface Once the data has been assembled and major data problems fixed, the data ... c04.qxd 3/8/04 11:10 AM Page 97 Data Mining Applications 97 mining techniques used to generate the scores. It is worth noting, however, that many of the data mining techniques in this book can...
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John wiley sons data mining techniques for marketing sales_5 pdf
... which messages are most appropriate for each one. Even a customer with low scores for every offer has higher scores for some then others. In Mastering Data Mining (Wiley, 1999), we describe how ... 11:10 AM Page 109 Data Mining Applications 109 Start Tracking Customers before They Become Customers It is a good idea to start recording information about prospects even before they become ... for other reasons as well. For instance, it is one way of taking several variables and converting them to similar ranges. This can be useful for several data mining techniques, such as clustering...
Ngày tải lên: 21/06/2014, 04:20
John wiley sons data mining techniques for marketing sales_6 ppt
... in several areas: ■■ Data miners tend to ignore measurement error in raw data. ■■ Data miners assume that there is more than enough data and process- ing power. ■■ Data mining assumes dependency ... make the same classification, although each leaf makes that classification for a different reason. For example, in a tree that classifies fruits and vegetables by color, the leaves for apple, ... 11:11 AM Page 159 The Lure of Statistics: Data Mining Using Familiar Tools 159 statisticians use similar techniques to solve similar problems, the data mining approach differs from the standard...
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John wiley sons data mining techniques for marketing sales_8 ppt
... Networks 219 Neural Networks for Directed Data Mining The previous example illustrates the most common use of neural networks: building a model for classification or prediction. The steps in this ... test set to see how well it performs. 7. Apply the model generated by the network to predict outcomes for unknown inputs. Fortunately, data mining software now performs most of these steps auto- matically. ... children variable might be mapped as follows: 0 (for 0 children), 0.5 (for one child), 0.75 (for two children), 0.875 (for three children), and so on. For cate- gorical variables, it is often easier...
Ngày tải lên: 21/06/2014, 04:20
John wiley sons data mining techniques for marketing sales_12 doc
... not appropri- ate for all types of problems. It is not a prediction tool or classification tool like a neural network that takes data in and produces an answer. Many types of data are simply ... applied to data. These patterns can be turned into new features of the data, for use in conjunction with other directed data mining techniques. 470643 c11.qxd 3/8/04 11:17 AM Page 355 Automatic Cluster ... X. Clearly, they must all be converted to a common scale before distances will make any sense. Unfortunately, in commercial data mining there is usually no common scale available because the...
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John wiley sons data mining techniques for marketing sales_13 docx
... calculation for these customers, paying par- ticular attention to the role of censoring. When looking at customer data for hazard calculations, both the tenure and the censoring flag are needed. For ... the data speak instead of finding a special function to speak for it. Empirical hazard probabilities simply let the historical data determine what is likely to happen, without trying to fit data ... cus- tomer databases often contain data on millions of customers and former customers. Much of the statistical background of survival analysis is focused on extracting every last bit of information...
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John wiley sons data mining techniques for marketing sales_19 potx
... Choosing a Data Mining Technique The choice of which data mining technique or techniques to apply depends on the particular data mining task to be accomplished and on the data available for analysis. ... to build the data mining team and secure sponsorship for a data mining pilot. The successful efforts crossed corporate boundaries to involve people from both marketing and information technology. ... understood the data, people who understood the data mining techniques, peo- ple who understood the business problem to be addressed, and at least one person with experience applying data mining to...
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