منابع مشابه
Mining Statistically Significant Substrings Based on the Chi-Square Measure
Given the vast reservoirs of data stored worldwide, efficient mining of data from a large information store has emerged as a great challenge. Many databases like that of intrusion detection systems, web-click records, player statistics, texts, proteins etc., store strings or sequences. Searching for an unusual pattern within such long strings of data has emerged as a requirement for diverse app...
متن کاملMost Significant Substring Mining Based on Chi-square Measure
Given the vast reservoirs of sequence data stored worldwide, efficient mining of string databases such as intrusion detection systems, player statistics, texts, proteins, etc. has emerged as a great challenge. Searching for an unusual pattern within long strings of data has emerged as a requirement for diverse applications. Given a string, the problem then is to identify the substrings that dif...
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The Chi square test is a statistical test which measures the association between two categorical variables. A working knowledge of tests of this nature are important for the chiropractor and osteopath in order to be able to critically appraise the literature.
متن کاملOn the multi _ chi-square tests and their data complexity
Chi-square tests are generally used for distinguishing purposes; however when they are combined to simultaneously test several independent variables, extra notation is required. In this study, the chi-square statistics in some previous works is revealed to be computed half of its real value. Therefore, the notion of Multi _ Chi-square tests is formulated to avoid possible future confusions. In ...
متن کاملChi-square lower bounds
The information inequality has been shown to be an effective tool for providing lower bounds for the minimax risk. Bounds based on the chisquare distance can sometimes offer a considerable improvement especially when applied iteratively. This paper compares these two methods in four examples including the bounded normal mean problem as well as obervations from a Poisson distribution.
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ژورنال
عنوان ژورنال: The Cartographic Journal
سال: 1978
ISSN: 0008-7041,1743-2774
DOI: 10.1179/caj.1978.15.2.93