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What (who) is lexical scan - definition

SUBFIELD OF LINGUISTIC SEMANTICS

Lexical relations; Lexical semantician

Graham scan

ALGORITHM FOR FINDING THE CONVEX HULL OF A SET OF POINTS IN THE PLANE

Graham Scan; Graham's scan; Graham's algorithm

Graham's scan is a method of finding the convex hull of a finite set of points in the plane with time complexity O(n log n). It is named after Ronald Graham, who published the original algorithm in 1972.

https://en.wikipedia.org/wiki/Graham_scan

Lexical hypothesis

HYPOTHESIS IN PERSONALITY PSYCHOLOGY THAT PERSONALITY TRAITS IMPORTANT TO A GROUP BECOME A PART OF THAT GROUP’S LANGUAGE

Sedimentation hypothesis; Fundamental lexical hypothesis; Lexical Hypothesis; Psycholexical

The lexical hypothesis (also known as the fundamental lexical hypothesis, lexical approach, or sedimentation hypothesis) is a thesis, current primarily in early personality psychology, and subsequently subsumed by many later efforts in that subfield. Despite some variation in its definition and application, the hypothesis is generally defined by two postulates.

https://en.wikipedia.org/wiki/Lexical_hypothesis

Track while scan

RADAR MODE

Track-while-scan; Track While Scan; Track-While-Scan; Track-while-scan mode; Track while Scan; Search and track

The track while scan (TWS) is a mode of radar operation in which the radar allocates part of its power to tracking the target or targets while part of its power is allocated to scanning, unlike the straight tracking mode, when the radar directs all its power to tracking the acquired targets. In the TWS mode the radar has a possibility to acquire additional targets as well as providing an overall view of the airspace and helping maintain better situational awareness.

https://en.wikipedia.org/wiki/Track_while_scan

Wikipedia

Lexical semantics

Lexical semantics (also known as lexicosemantics), as a subfield of linguistic semantics, is the study of word meanings. It includes the study of how words structure their meaning, how they act in grammar and compositionality, and the relationships between the distinct senses and uses of a word.

The units of analysis in lexical semantics are lexical units which include not only words but also sub-words or sub-units such as affixes and even compound words and phrases. Lexical units include the catalogue of words in a language, the lexicon. Lexical semantics looks at how the meaning of the lexical units correlates with the structure of the language or syntax. This is referred to as syntax-semantics interface.

The study of lexical semantics looks at:

the classification and decomposition of lexical items
the differences and similarities in lexical semantic structure cross-linguistically
the relationship of lexical meaning to sentence meaning and syntax.

Lexical units, also referred to as syntactic atoms, can stand alone such as in the case of root words or parts of compound words or they necessarily attach to other units such as prefixes and suffixes do. The former are called free morphemes and the latter bound morphemes. They fall into a narrow range of meanings (semantic fields) and can combine with each other to generate new denotations.

Cognitive semantics is the linguistic paradigm/framework that since the 1980s has generated the most studies in lexical semantics, introducing innovations like prototype theory, conceptual metaphors, and frame semantics.

https://en.wikipedia.org/wiki/Lexical semantics