Multiword Candidate Generation
Expansions of Acronyms and Abbreviations in the Lexicon Release

• During the Lexicon annual release process, there are expansions of abbreviation and acronyms that are not in the Lexicon (base). These are potential multiword candidate.
• This process (before 2019) are detailed at Lexicon Validation - 2.13.newEui.abb/acr.tagged.txt.y.${YEAR}
• This process is enhanced in 2020+ release and is done before the Lexicon release. The result list is sent to linguist to tag [C|Y|EUI], Please see detailed at Generate LMW candidates from Lexicon - Abb/Acr expansion ${YEAR}
• The general guidelines to decide if these expansion are LMWs are:
  • must has
    • a POS
    • morphology rules
    • a specific meaning to its own
    • word order

  • Examples that should be excluded from LMWs:

    Invalid LMWs	Notes
    cause of death|COD|E0453760 condition on discharge|COD|E0453760	not a single POS because "law(s) of articulation". That is a noun with a postmodifying prepositional phrase, rather than being a single NP, it cannot be a Lexbuild base
    dead on arraival acquired immune deficiency	law(s) of articulation no morphology rules
    1-oleoyl-2-acetyl-sn-glycerol|OAG|E0698010 4-phenyl-2,3-dioxo-4-butenolide|PDOB|noun	no morphology rules chemical names that are more like formulas than like words
    acquired immunodeficiency syndrome test|AIDS test|E0776477	We have also declined to make Lexbuild records for names of studies, considering them to be too ephemeral as terms. If those studies have acronyms or abbreviations, the study names can appear as expansions in those records.
    portacaval shunted|PCS|E0700541	Not a valid base form

    Note that the restriction on complex NPs (law of articulation) can be overridden if a term is a true compound, with its own meaning apart from the constituent NP + PP. For instance, “tug of war” is considered a valid LMW, since it has a definition that could not be inferred from the combination of meanings tug + of + war alone. It also undergoes pluralization as a unit – [tug of war]s and not [tug]s of war[s].

• Generated files:

  Lexicon Release	Candidate Files	Status	Notes
  2015	2.2.4.newEuis.abb.tagged.txt.y.2015 2.2.4.newEuis.acr.tagged.txt.y.2015	Done
  2016	2.4.13.newEuis.abb.tagged.txt.y.2016 2.2.4.newEuis.acr.tagged.txt.y.2016	Done
  2017	2.13.newEui.abb.tagged.txt.y.2017 2.13.newEui.acr.tagged.txt.y.2017	Done
  2018	2.13.newEui.abb.tagged.txt.y.2018 2.13.newEui.acr.tagged.txt.y.2018	Done
  2019	2.13.newEui.abb.tagged.txt.y.2019 2.13.newEui.acr.tagged.txt.y.2019	Done
  2020	abbAcrExpansions.data.cand.2020	Done
  2021	abbAcrExpansions.data.cand.2021	Done
  2022	abbAcrExpansions.data.cand.2022	Done
  2023	abbAcrExpansions.data.cand.2023	Done
  2024	abbAcrExpansions.data.cand.2024	Done
  2025	abbAcrExpansions.data.cand.2025	Done