Test Data Preparation
Test Data Preparation
... 1 Test Data Preparation - Introduction A System is programmed by its data. Functional testing can suffer if data is poor, and good data can help improve functional testing. Good test data ... criteria test milestones tests to be performed use cases and/or test cases 1.1 Criteria for Test Data Collection This section of the Document specifies the description of the test...
Ngày tải lên: 25/10/2013, 03:20
Data Preparation for Data Mining- P3
... of data representation. 2.6.2 Building Data Dealing with Variables The data representation can usefully be looked at from two perspectives: as data and as a data set. The terms data and data ... due to 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...
Ngày tải lên: 24/10/2013, 19:15
Data Preparation for Data Mining- P4
... categorical training, test, and execution data. The data preparation techniques discussed in this book are designed to allow preparation of the data set in a variety of ways. They allow the data to be manipulated ... relationships, while the test data set is used for discovering noise. The instances in the test data set are not valid for independently testing any predictio...
Ngày tải lên: 24/10/2013, 19:15
Data Preparation for Data Mining- P5
... original data set. The data preparation software creates this variable and captures information about the missing value patterns. For each pattern of missing values in the data set, the data preparation ... where the data comes from, what is in the data, and what issues remain to be established—in other words, to determine the general quality of the data. This forms the fou...
Ngày tải lên: 29/10/2013, 02:15
Data Preparation for Data Mining- P6
... the original data sample. Random sampling does that. If the original data set represents a biased sample, that is evaluated partly in the data assay (Chapter 4), again when the data set itself ... use to discover what was in the data. It might provide a useful model of a very large data set and give useful insights into related structures. No training and test sets would be n...
Ngày tải lên: 29/10/2013, 02:15
Data Preparation for Data Mining- P7
... density of the data points depends on the number of data points present and the size of the space. The number of dimensions fixes unit state space volume, but the number of data points in that ... given area, particularly if in some places the given volume only has one data point, or even no data points, in it. If enough data points from a representative sample are added, ev...
Ngày tải lên: 08/11/2013, 02:15
Data Preparation for Data Mining- P8
... 7.1.1 Review of Data Preparation and Modeling (Training, Testing, and Execution) Chapter 3 described the creation, use, and purpose of the PIE, which is created during data preparation. ... important part of the data survey in addition to its use in data preparation. Several practical issues in providing a working data preparation computer program were also addres...
Ngày tải lên: 08/11/2013, 02:15
Data Preparation for Data Mining- P9
... to the data. It is every bit as important to avoid adding bias and distortion to the data as it is to make the information that is present available to the mining tool. The data itself, ... instance, data had been assembled into a data warehouse. The architects had carefully prepared the data for warehousing, including replacing the missing values. The data so prepar...
Ngày tải lên: 08/11/2013, 02:15
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 ... Trouble lurks inside series data; the road of data preparation is rocky and uncertain, sometimes ending mired in difficulties. It is all too easy to seriously damage data, render...
Ngày tải lên: 15/12/2013, 13:15
Tài liệu Data Preparation for Data Mining- P11 pdf
... series data preparation. Testing the performance of these procedures awaits the arrival of yet more powerful, low-cost computer systems. This has already happened with nonseries data preparation ... series data. Data visualization is a broad field in itself, and there are many highly powerful tools for handling data that have superb visualization capability. For small to moder...
Ngày tải lên: 15/12/2013, 13:15