"Concept" is preferred over "notion" in scientific linguistic texts. "Notion" is more colloquial. Some consider it a "false friend."

There are *many* references to the "concept of position" in texts on artificia intelligence.

Note the following examples from linguistics per se. The first two use the same punctuation as mine, with single quotes on 'position':

**... without his concept of 'position', he would have beeen compelled to adopt Martinet's** ... whereas kuwan is a realization of two other semantic units. ...
links.jstor.org/sici?sici=0097-8507(197009)46%3A3%3C671%3ASARIPA%3E2.0.CO%3B2-S

In this thesis, semantic categories underpin the analysis of the discourse, ... This relates to **the concept of 'position' itself**, which cannot be specified ...
www.grammatics.com/lexi_con/lexis-text/attitude/onATTITUDE1...

tactic, semantic, and pragmatic properties and of other factors, rhythmic and ...** the concept of “position” is closely related to that of “constituent."**...
wpage.unina.it/sornicol/bernini-sornicola.pdf

**The concept of “position” is by itself a reference** to new needs for comprehending the ... How could one imagine the core of photographic semantic space? ...
art.tartu.ee/~linnapp/DOKTORITOO%20Final%20/Photology%20English%20Summary.doc

2.1 Discussion on semantic meaning to identify morphemes ... on the top surface) indicates **concrete concept of position,** it is easy to be tested by zuo (左, ...
www.linguist.org.cn/doc/uc200504/uc20050406.doc

Tero Kainlauri: Semantic similarity of grammatical constructions ... **PTGs are based on the concept of position.** Positions can be occupied by cate- ...
www.hf.uib.no/forskerskole/doktorandkonferanse/Abstraktbog....

semantic relations between larger parts of the discourse and, secondly, crucially, ... **House's (1997) concept of "position roles" and "situation roles". ...**
www.sub.uni-hamburg.de/opus/volltexte/2005/2527/pdf/Dissert...

(Joan Bybee, cited below, is one of the authors I referred to a lot in my thesis.

it reflects syntactic or semantic relations (e.g., Bybee 1985, Pesetsky 1985, ... of the familiar concept of **position class ordering**. And the third is to ...
heldref.metapress.com/index/M0853184515L6K79.pdf

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