Glossary 

This glossary includes terms and definitions for Knowledge Studio.

The following cross-references are used in this glossary:



* See refers you from a term to a preferred synonym, or from an acronym or abbreviation to the defined full form.
* See also refers you to a related or contrasting term.



[A](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_A)[B](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_B)[C](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_C)[D](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_D)[E](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_E)[F](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_F)[G](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_G)[H](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_H)[I](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_I)[K](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_K)[L](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_L)[M](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_M)[N](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_N)[O](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_O)[P](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_P)[R](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_R)[S](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_S)[T](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_T)



 A 



* accuracy

A measure of the correctness of annotations that are produced by a machine learning model. See also [precision](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_P) and [recall](https://cloud.ibm.com/docs/watson-knowledge-studio?topic=watson-knowledge-studio-glossarygloss_R).
* accuracy analysis

Analyzing machine learning model scores to determine whether changes are needed to improve accuracy.
* adjudication

An iterative process for resolving annotation conflicts by comparing the annotations added to the same document by different human annotators.
* analysis engine

A program that analyzes artifacts, such as documents, and infers information about them, and which implements the UIMA Analysis Engine interface specification. Analysis engines are constructed from building blocks called annotators. An analysis engine can contain a single annotator, which is referred to as a primitive analysis engine, or multiple annotators, which is referred to as an aggregate analysis engine.
* annotation

Information about a span of text. For example, an annotation might indicate that a span of text represents a company name.
* annotation set

In human annotation, a collection of documents that are extracted from the corpus that allow the workload to be shared by multiple human annotators. In machine-based annotation, a collection of documents that can be used as blind data, training data, or test data.
* annotation process manager

A role that is responsible for managing the full annotation lifecycle activities within a workspace. The project manager that is added to a workspace typically performs the activities of an annotation process manager.
* annotator