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...]
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...]
Data Mining: An Overview
Data mining is the systematic application of statistical methods to large data sets 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 in databases". KDD), which also includes steps such as … [Read more...]
What is Sentiment Detection
Sentiment detection is a subfield of text mining and refers to the automatic evaluation of texts with the aim of recognizing an expressed attitude as positive or negative. Humans converse in natural languages, i.e. languages that, unlike formal languages, do not transmit meaning and information unambiguously and not only structurally, and whose automatic processing by computers is thus made more … [Read more...]
What is Information Extraction
Information extraction (IE) is the engineering application of methods from practical computer science, artificial intelligence and computational linguistics to the problem of automatic machine processing of unstructured information with the aim of acquiring knowledge. against a pre-defined domain. A typical example is the extraction of information about merger events, where, for example, instances … [Read more...]
What Is Enterprise Search?
Enterprise search refers to a subfield of information retrieval and refers to the process of computer-aided content-oriented search with the help of an internal company search engine, which indexes content by means of so-called crawlers. However, the search is usually not performed live on the original data sources, but on the search index. This index primarily includes internal data sources such … [Read more...]