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Related Concept Videos

How Data are Classified: Categorical Data01:11

How Data are Classified: Categorical Data

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A variable, usually notated by capital letters such as X and Y, is a characteristic or measurement that can be determined for each member of a population. Data are the actual values of variables. They may be numbers, or they may be words. Datum is a single value.
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A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
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Updated: Jul 31, 2025

Databases to Efficiently Manage Medium Sized, Low Velocity, Multidimensional Data in Tissue Engineering
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Biomedical heterogeneous data categorization and schema mapping toward data integration.

Priya Deshpande1, Alexander Rasin2, Roselyne Tchoua2

  • 1Marquette University, Milwaukee, WI, United States.

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|May 4, 2023
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Summary
This summary is machine-generated.

Integrating diverse clinical data is crucial for healthcare advancement. This study presents a semantic categorization method to merge 88% of disparate clinical data, overcoming interoperability challenges.

Keywords:
data categorizationdata integrationdatasetsheterogeneous dataschema mappingsemantic similarityunstructured data

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Area of Science:

  • Clinical data science
  • Health informatics
  • Biomedical data integration

Background:

  • Clinical data is often unstructured, heterogeneous, and spans various formats and standards.
  • Patient privacy constraints and diverse data structures within organizations complicate data integration.
  • Manual data integration by domain experts is time-consuming and costly.

Purpose of the Study:

  • To develop a method for categorizing and merging clinical data by considering underlying semantics.
  • To overcome challenges in clinical data interoperability and integration.
  • To reduce reliance on manual expert input for data integration.

Main Methods:

  • Mapping clinical text into common semantic categories.
  • Computing similarity measures within these categories.
  • Utilizing reference information for case-based data integration.

Main Results:

  • Successfully merged 88% of clinical data from five distinct sources.
  • Demonstrated the effectiveness of semantic categorization for data integration.
  • Validated the approach in a multi-source clinical data environment.

Conclusions:

  • The proposed method effectively integrates heterogeneous clinical data by leveraging semantic understanding.
  • This approach offers a scalable and cost-effective solution for clinical data interoperability.
  • Semantic-based data integration holds significant potential for advancing healthcare research and practice.