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Table 2 Strategy description

From: Abbreviation definition identification based on automatic precision estimates

Strategy

Example

FirstLet: FL for all letters in SF

A lpha B eta (AB)

Fail: Alpha-Beta (AB)

FirstLetOneChSF: Applied for 1-letter SF.

FL with restrictionsa.

D opamine (D)

FirstLetGen: FC or FCG, at least one FCG

1-A lpha-B eta (AB), A lpha-B eta (AB)

Fail: Alpha Beta (AB)

FirstLetGen2: FC or FCG

A lpha B eta (AB), A lpha-B eta (AB)

FirstLetGenS: SF consists of upper-case letters and lower-case letter 's' at the end.

LS for final 's' in SF and FC for the rest

A lpha B etas (ABs)

Fail: Alpha Beta Gammas (ABs)

FirstLetGenStp: FC or FCG or ST, at least one ST (at most one ST between matched words or at end)

A lpha and B eta (AB)

Fail: Alpha Beta (AB), Alpha word Beta (AB)

FirstLetGenStp2: FC or FCG or ST, at least one pair of adjacent ST (at most two ST between matched words or at end)

A lpha of the B eta (AB)

Fail: Alpha Beta (AB), Alpha and Beta (AB)

FirstLetGenSkp: FC or FCG or SK, at least one SK (at most one SK between matched words or at end)

A lpha and B eta (AB), A lpha word B eta (AB)

Fail: Alpha Beta (AB)

WithinWrdFWrd: FC or FCG or SBW, at least one SBW, all SBW in a FC or FCG matched word in LF

A lphaB eta (AB) A lpha B etaG amma (ABG)

Fail: A lphaB eta inG amma (ABG)

(SBW but no FC in inGamma)

WithinWrdWrd: FC or FCG or SBW, at least one SBW

A lphaB eta (AB), A lphaB eta inG amma (ABG)

Fail: AlphaBxx (AB) (Bxx is not defined-word)

Alpha Beta (AB) (no SBW)

WithinWrdFWrdSkp: WithinWrdFWrd or SK, at least one SK (at most one SK between matched words or at end)

A lphaB eta word G amma (ABG)

Fail: AlphaBeta Gamma (ABG)

WithinWrdFLet: FC or FCG or NF, at least one NF, all NF in a FC or FCG matched word in LF

A lphaB xx (AB)

Fail: AlphaBxx inCxx (ABC), Alpha Bxx (AB)

WithinWrdLet: FC or FCG or NF, at least one NF

A lphaB xx (AB), A lphaB xx inC xx (ABC)

Fail: Alpha Bxx(AB) (no NF)

WithinWrdFLetSkp: WithinWrdFLet or SK, at least one SK (at most one SK between matched words or at end)

A lphaB xx word G amma (ABG)

Fail: AlphaBxx Gamma (ABG)

ContLet: FC or FCG or CL, at least one CL, all CL in a FC or FCG matched word in LF

AB xx (AB), AB xx C xx (ABC), A xxBC xx (ABC)

Fail: ABxx xCxx (ABC), xABxx (AB)

ContLetSkp: ContLet or SK, at least one SK (at most one SK between matched words or at end)

AB xx and C xx (ABC), AB xx word C xx (ABC)

Fail: ABxx Cxx (ABC)

AnyLet: The 1st character of SF: FC or FCG. The others: AC or SK (at most one SK between matched words or at end)

A lpha xB eta (AB), A lpha word xB eta (AB)

  1. a The SF and LF pair must appear in MEDLINE at least twice and LF must not be a stopword.