Data mining is the application of statistical techniques to large data sets. Due to their size, they are processed using computer-supported methods. The terminology is somewhat misleading because it is about extracting knowledge from already existing data and not about generating data itself. Previously, we have pointed out the Different Tasks of Data Mining and Data Mining Issues. This article … [Read more...]
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How Decision Support System Works
Decision Support Systems are software systems that identify, process, compile and help evaluate information relevant to human decision-makers for operational and strategic tasks. This includes functions for sorting and filtering data, its flexible presentation as well as evaluation options such as totals or average calculations, comparisons, etc. Further functions allow the execution of model … [Read more...]
Types of Classification Methods
Classification methods, also known as classification procedures, are methods and criteria for classifying objects or situations into classes, i.e. for classification. Such a procedure is also known as a classifier. Many methods can be implemented as algorithms; this is also referred to as machine or automatic classification. Classification methods are always application-oriented, so there are many … [Read more...]
Time Series Analysis: Overview
In statistics, time series analysis deals with the inferential analysis of time series and the prediction of trends for their future development. It is a special form of regression analysis. A time series is a chronologically ordered sequence (but usually not a series in the mathematical sense) of numbers or observations, in which the arrangement of the characteristic characteristics necessarily … [Read more...]
Data Mining Issues
In our earlier discussions, we have clarified the data mining tasks. While most data mining methods try to be able to deal with data that is as general as possible, there are also specializations for more specialized data types. Text mining: Text mining is about the analysis of large textual data sets. This can be used, for example, to detect plagiarism or to classify the text inventory. … [Read more...]
What Are Different Tasks of Data Mining?
As explained in earlier articles, data mining is the systematic application of statistical methods to large data sets (especially "big data") with the aim of creating new Identify cross-connections and trends. Due to their size, such databases are processed using computer-aided methods. In practice, the sub-term data mining has been applied to the entire process of so-called "knowledge discovery … [Read more...]
What is Web Mining
Web mining is the transfer of data mining techniques for the (partially) automatic extraction of information from the Internet, especially the World Wide Web. Web mining adopts procedures and methods from the fields of information retrieval, machine learning, statistics, pattern recognition and data mining. Three objects of investigation can be distinguished: The content (web content mining) … [Read more...]
Recursion in Programming
In mathematics and computer science, recursion is a common term. Recursion is a process that is in principle infinite and contains itself as part or can be defined with the help of itself. Usually, recursive processes can be described relatively briefly or can be triggered by a relatively short statement. In recursion, the successive sub-processes or the objects created one after the other are not … [Read more...]
What is Iteration – Meanings
Iteration generally describes a process of repeated same or similar actions in order to approximate a solution or a specific goal. With this meaning first used in mathematics, the term is now in use in various fields with similar meaning. For example, in computer science, not only the process of repetition, but also the repetition itself is called iteration. In other areas, as in the Latin source … [Read more...]
Implementation of Requirements in Electronic Archiving Systems
Electronic archiving generally refers to the storage of information in electronic form. A special case of electronic archiving is the audit-proof archiving of documents relevant to commercial and tax law, for which special requirements apply, in particular immutability and long-term availability in accordance with the applicable retention periods. As a rule, special archiving systems are used … [Read more...]
What is Database Archiving
In computer science, database archiving refers to procedures to ensure the long-term availability of the required data relating to database systems. On the one hand, this includes simple backup/recovery procedures provided by most database management systems. On the other hand, this also includes application-oriented database archiving. Application-oriented database archiving has the following … [Read more...]