Tài liệu Data Preparation for Data Mining- P16 ppt
Tài liệu Data Preparation for Data Mining- P16 ppt
... mining tools and data modeling tools focus. The near future will see the development of automated data preparation tools for series data. Approaches for automated series data preparation ... near future for data preparation includes fully automated information exposure for the types of data discussed in this book, including series data, and adding thematic,...
Ngày tải lên: 15/12/2013, 13:15
Tài liệu Data Preparation for Data Mining- P10 docx
... Series Data Series data differs from the forms of data so far discussed mainly in the way in which the data enfolds the information. The main difference is that the ordering of the data ... Figure 9.11 Waterforms and their correlograms. 9.4 Modeling Series Data Given these tools for describing series data, how do they help with preparing the data for...
Ngày tải lên: 15/12/2013, 13:15
Tài liệu Data Preparation for Data Mining- P11 pdf
... transform accomplishes this. The second transform subtracts the mean of the transformed variable from each transformed value, and divides the result by the standard deviation. The formula for ... second transform subtracts the mean of the transformed variable from each transformed value, and divides the result by the standard deviation. The formula for this second transformation is .....
Ngày tải lên: 15/12/2013, 13:15
Tài liệu Data Preparation for Data Mining- P12 pptx
... of the survey, rather than data preparation? Data preparation concentrates on transforming and adjusting variables’ values to ensure maximum information exposure. Data surveying concentrates ... function can be expressed as a formula, just as the formula for determining the value of the logistic function is For convenience, this whole formula can be taken as a...
Ngày tải lên: 15/12/2013, 13:15
Tài liệu Data Preparation for Data Mining- P13 pptx
... a mining tool.” “Information is contained in variability.” Information, information, information. Clearly, “information” is a key feature of data preparation. In fact, information—its discovery, ... that, as a rule of thumb for the minimum amount of data to accept, for mining (as opposed to data preparation) , use at least twice the number of instances required for a data...
Ngày tải lên: 15/12/2013, 13:15
Tài liệu Data Preparation for Data Mining- P14 pdf
... variability of a data set is captured, entropic analysis forms the main tool for surveying data. The other tools are useful, but used largely for exploring only where entropic or information analysis ... note that this data reduction activity is not properly part of the data survey. The survey only looks at and measures the data set presented. While it provides information ab...
Ngày tải lên: 15/12/2013, 13:15
Tài liệu Data Preparation for Data Mining- P15 doc
... noise—all useful information for the miner. Not all information/noise/capture maps look like this one does. For comparison, Figure 11.30 shows a map for a different data set. ... map for the CREDIT data set in Figure 11.31 that carries useful information. In spite of the apparent perfect predictions possible from the information enfolded in this data (shown i...
Ngày tải lên: 15/12/2013, 13:15
Tài liệu Data Preparation for Data Mining- P17 ppt
... mining tools and data modeling tools focus. The near future will see the development of automated data preparation tools for series data. Approaches for automated series data preparation ... near future for data preparation includes fully automated information exposure for the types of data discussed in this book, including series data, and adding thematic,...
Ngày tải lên: 15/12/2013, 13:15
Data Preparation for Data Mining- P3
... their limited data capacity and inability to handle certain types of operations needed in data preparation, data surveying, and data modeling. For exploring small data sets, and for displaying ... prepare the data set for mining—to best expose the information contained in it to the mining tool. Indeed, the whole purpose for mining data is to transform the information...
Ngày tải lên: 24/10/2013, 19:15
Data Preparation for Data Mining- P4
... considered alone. Data Set /Data Survey Issue: Well- and Ill-Formed Manifolds This is really the first data survey step as well as the last data preparation step. The data survey, discussed ... execution data is in its “raw” form, and the model works only with prepared data, it is necessary to transform the execution data in the same way that the training a...
Ngày tải lên: 24/10/2013, 19:15