Data analytics and AI
This glossary contains definitions related to customer data analytics, predictive analytics, data visualization and operational business intelligence. Some definitions explain the meaning of words used to Hadoop and other software tools used in big data analytics. Other definitions are related to the strategies that business intelligence professionals, data scientists, statisticians and data analysts use to make data-driven decisions.
Algorithms
Terms related to procedures or formulas for solving a problem by conducting a sequence of specified actions. In computing, algorithms in the form of mathematical instructions play an important part in search, artificial intelligence (AI) and machine learning.
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What is prediction error?
A prediction error is the failure of a model of a system to accurately forecast outcomes.
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What is HMAC (Hash-Based Message Authentication Code)?
Hash-based message authentication code (HMAC) is a message encryption method that uses a cryptographic key with a hash function.
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What is binary and how is it used in computing?
Binary describes a numbering scheme in which there are only two possible values for each digit -- 0 or 1 -- and is the basis for all binary code used in computing systems.
Artificial intelligence
Terms related to artificial intelligence (AI), including definitions about machine learning and words and phrases about training data, algorithms, natural language processing, neural networks and automation.
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What are oversampling and undersampling?
Oversampling and undersampling are techniques used in data analytics and statistics to modify unequal data classes to create balanced data sets.
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What is pattern recognition?
Pattern recognition is the ability to detect arrangements of characteristics in data that yields information about a given system or data set.
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What is prediction error?
A prediction error is the failure of a model of a system to accurately forecast outcomes.
Data and data management
Terms related to data, including definitions about data warehousing and words and phrases about data management.
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What is data in use?
Data in use is data that is currently being updated, processed, erased, accessed or read by a system, application, user or device.
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What is PL/SQL (Procedural Language/Structured Query Language)?
In Oracle database management, PL/SQL is a procedural language extension to Structured Query Language (SQL).
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What is a health information exchange (HIE)?
Health information exchange (HIE) refers to the electronic transmission and exchange of patients' healthcare-related data among healthcare professionals, medical facilities, health information organizations, public health agencies and patients.
Database management
Terms related to databases, including definitions about relational databases and words and phrases about database management.
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What is PL/SQL (Procedural Language/Structured Query Language)?
In Oracle database management, PL/SQL is a procedural language extension to Structured Query Language (SQL).
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What is a distributed database?
A distributed database is a database that consists of two or more files located in different sites on the same or different networks.
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What is MySQL?
MySQL is a popular, scalable, user-friendly, open source and free relational database management system (RDBMS) that uses Structured Query Language (SQL) to store, manage, and manipulate data.