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07 2012 档案
Top 14 Business Intelligence predictions for 2012
摘要：Don’t confuse continuity for laziness. On face value, rehashing events already transpired as ‘predictions’ may create the appearance of lethargy. But, it seems that many emergent themes from the 2010/11 Business Intelligence (BI) scene will dominate 2012, having now developed into significant market
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Three typical types of Data Mining applications
摘要：Three typical types of Data Mining applications: Classification Regression ClusteringClassificationIn a classification type problem, we have a variable of interest which is categorical in nature. For example, this could be: Classification of credit risk, either good or bad Classifying patients as hi
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load data to matlab
摘要：To deal with the data, we have to load it to matlab and express it with variables.%load data to matlabrawdata = load('E:\Pattern Recognition\Data Mining Repository\adult\resource\converted_data.data');%get data of all fieldsage = rawdata(:,1)';workclass = rawdata(:,2)';fnlwgt = rawda
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Thank You Quotes - How to say THANK YOU
摘要：Do you need to say thank you? Here are a variety of quotes you can use to say thank you in a handwritten thank you card, a letter or an email message.Use these thank you quotes as a starting point, then edit and expand on the quote so it fits your personal circumstances and the reason you are writin
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Data conversion – the first step towards data processing
摘要：Data conversion – the first step towards data processing Convert all string to integers: ranging from 0 to n.Agecontinuous.WorkclassPrivate, Self-emp-not-inc, Self-emp-inc, Federal-gov, Local-gov, State-gov, Without-pay, Never-worked.Fnlwgtcontinuous.EducationBachelors, Some-college, 11th, HS-grad,
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Web Resources on Patten Recognition
摘要：模式识别网络资源链接一、模式识别相关网址及其论坛网址1、中国模式识别与机器学习论坛http://bbs.pr-ml.cn （推荐）2、振动论坛——人工智能与模式识别http://www.chinavib.com/forum/forum-108-1.html3、研学论坛——人工智能与模式识别http://219.232.49.40/index.php4、中国图像网——模式识别http://www.china-image.cn/mssb/index.aspx5、中国人工智能网 >> 人工智能、模式识别、图像处理 http://www.chinaai.org/6、模式识别国家重点实验室h
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Apriori algorithm
摘要：DescriptionIn computer science and data mining, Apriori[1] is a classic algorithm for learning association rules. Apriori is designed to operate on databases containing transactions (for example, collections of items bought by customers, or details of a website frequentation). Other algorithms are d
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Association Rule Definitions
摘要：Definitions:•Set of items: I={I1,I2,…,Im}•Transactions: D={t1,t2, …, tn}, tj∈I•Itemset: {Ii1,Ii2, …, Iik} ∈I•Support of an itemset: Percentage of transactions which contain that itemset.•Large (Frequent) itemset: Itemset whose number of occurrences is above a threshold.•Association Rule (AR): implic
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Closure (mathematics)
摘要：A set has closure under an operation if performance of that operation on members of the set always produces a member of the same set. For example, the real numbers are closed under subtraction, but the natural numbers are not: 3 and 8 are both natural numbers, but the result of 3 − 8 is not a natura
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Methods for outlier detection
摘要：Distribution-based methodsDistance-based methodsDensity-based methodsClustering-based methods
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Some key terms of Data Mining
摘要：Outlier mining - A data mining task aiming to find a specific number of objects that are considerably dissimilar, exceptional and inconsistent with respect to the majority records in the input databases.Subspace - A combination of features of attributes of a database.Outlying subspaces -An outlying
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Regular Expressions in Java
摘要：In the project of Data Mining, I have to make use of the regular expressions to deal with the large amount of text in html.I used regular expression in Linux (grep) before and find it quite an efficient way to deal with text, especially when their amount is very large.IntroductionRegular expressions
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How To Debug a Pyhon Program
摘要：I have used python for several months and find it important to know how to debug a python program, to toggle breakpoints, to view the stacks and so on.How to run a program in IDLEIn python IDLE, we can click menu Run -- Run Module to execute our program, alse we can use F5.Perhaps the most common wa
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