Data analysis - Citizendia

Computational physics

Numerical analysis · Simulation Data analysis · Visualization
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Data analysis is the process of looking at and summarizing data with the intent to extract useful information and develop conclusions. Computational physics is the study and implementation of numerical Algorithms in order to solve problems in Physics for which a quantitative theory already exists Numerical analysis is the study of Algorithms for the problems of continuous mathematics (as distinguished from Discrete mathematics) A computer simulation, a computer model or a computational model is a Computer program, or network of computers that attempts to simulate an See also Visualization and Information graphics Visualization is any technique for creating Images Diagrams or Debt AIDS Trade in Africa (or DATA) is a Multinational non-government organization founded in January 2002 in London by U2 's Information as a concept has a diversity of meanings from everyday usage to technical settings Data analysis is closely related to Data mining, but data mining tends to focus on larger data sets, with less emphasis on making inference, and often uses data that was originally collected for a different purpose. Data mining is the process of Sorting through large amounts of data and picking out relevant information Inference is the act or process of deriving a Conclusion based solely on what one already knows In statistical applications, some people divide data analysis into descriptive statistics, exploratory data analysis and confirmatory data analysis, where the EDA focuses on discovering new features in the data, and CDA on confirming or falsifying existing hypotheses. Statistics is a mathematical science pertaining to the collection analysis interpretation or explanation and presentation of Data. Descriptive Statistics are used to describe the basic features of the Data gathered from an experimental study in various ways Exploratory data analysis (EDA is an approach to analyzing data for the purpose of formulating hypotheses worth testing complementing the tools of conventional

Data analysis assumes different aspects, and possibly different names, in different fields.

The term data analysis is also used as a synonym for data modeling, which is unrelated to the subject of this article. Data modeling in Computer science is the process of creating a Data model by applying formal data model descriptions using data modelling techniques

1 Nuclear and particle physics
2 Social sciences
3 Information technology
4 Business
5 See also
6 Further reading

Nuclear and particle physics

In nuclear and particle physics the data usually originate from the experimental apparatus via a Data acquisition system. Nuclear physics is the field of Physics that studies the building blocks and interactions of Atomic nuclei. Particle physics is a branch of Physics that studies the elementary constituents of Matter and Radiation, and the interactions between them In experimental and applied Particle physics and Nuclear engineering, a particle detector, also known as a radiation detector, is a device used to Data acquisition is the sampling of the real world to generate data that can be manipulated by a computer It is then processed, in a step usually called data reduction, to apply calibrations and to extract physically significant information. Data reduction is most often, especially in large particle physics experiments, an automatic, batch-mode operation carried out by software written ad-hoc. The resulting data n-tuples are then scrutinized by the physicists, using specialized software tools like ROOT or PAW, comparing the results of the experiment with theory. ROOT is an object-oriented program and library developed by CERN. The Physics Analysis Workstation (PAW is an interactive scriptable computer software tool for data analysis and graphical presentation in High energy physics (HEP

The theoretical models are often difficult to compare directly with the results of the experiments, so they are used instead as input for Monte Carlo simulation software like Geant4 that predict the response of the detector to a given theoretical event, producing simulated events which are then compared to experimental data. Monte Carlo methods are a class of Computational Algorithms that rely on repeated Random sampling to compute their results Geant4 (for GEometry ANd Tracking) is a platform for "the Simulation of the passage of particles through Matter,"

See also: Computational physics. Computational physics is the study and implementation of numerical Algorithms in order to solve problems in Physics for which a quantitative theory already exists

Social sciences

Qualitative data analysis (QDA) or qualitative research is the analysis of non-numerical data, for example words, photographs, observations, etc. Qualitative research is a field of inquiry that crosscuts disciplines and subject matters. Qualitative research is a field of inquiry that crosscuts disciplines and subject matters. .

Information technology

A special case is the data analysis in information technology audits.

Business

See

Contents

Nuclear and particle physics

Social sciences

Information technology

Business

See also

Further reading