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Universal Word and UNL Knowledge Base

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dance(agt volitional thing)' : to dance. Semantic-syntactic units of UNL expressions ' ... volitional thing. do(agt thing) do(agt thing,gol thing) do(agt thing, ... – PowerPoint PPT presentation

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Title: Universal Word and UNL Knowledge Base


1
Universal Word and UNL Knowledge Base
  • Meiying Zhu
  • Hiroshi Uchida
  • UNL Center
  • UNDL Foundation

2
Issues
  • What is a UW?
  • What is the relation between UWs and the UNL
    Knowledge Base (KB)?
  • How to define a UW?

3
What is a UW?
  • Vocabulary of UNL
  • Labels for concepts
  • dance(iclgtaction) (a social) dance
  • dance(agtgtvolitional thing) to dance
  • Semantic-syntactic units of UNL expressions
  • I danced yesterday
  • agt(dance(agtgtvolitional thing)._at_entry._at_past,
    I)
  • tim(dance(agtgtvolitional thing)._at_entry._at_past,
    yesterday)

4
What concepts UWs can express?
  • Since UWs are made up based on English words,
  • How to deal with a concept not found in English?
  • How to deal with a concept different from
    English? How to deal with the difference between
    concepts?

5
Concepts and English Words
(2)
(4)
CE
(1)
C
?
(3)
(5)
6
Concepts and English Words
CE
7
Collection of Concepts
E2
E1
E4
E3
E5
8
Hierarchy of Concepts
C
C3
C1
C2
9
  • To define a concept is to link the UW for the
    concept to related UWs in the UNL KB
  • If necessary, specialize the UW

10
Relation betweenUWsandUNL KB
  • UNL KB define the concepts of UWs
  • UWs construct the UNL KB

11
What is the UNL KB?
  • The UNL KB is a semantic network comprising every
    directed binary relation holding between UWs.
  • All binary relations of the UNL KB are under the
    following format
  • relation(UW1, UW2) 0 255

12
UW SYSTEM OF THE UNL KB
uw
adjective concept
adverbial concept
nominal concept
verbal concept
how
do(agtgtthing)
do(agtgtthing,golgtthing)
do(agtgtthing,golgtthing,objgtthing)
do(agtgtthing,)
13
Features of the UW SYSTEM
  • Property Inheritance
  • Lower UWs inherit the properties of upper UWs
  • Replacement
  • Upper UWs can replace lower UWs in the
    specific context of the lower UWs

14
Frame of Master Definition
  • ltHEADWORDgt ( iclgt ltUWgt,
  • iofgt ltUWgt,
  • equgt ltUWgt,
  • agtgt ltUWgt,
  • andgt ltUWgt,
  • aojgt ltUWgt,
  • basgt ltUWgt,
  • bengt ltUWgt,
  • viagt ltUWgt
  • )

Link to at least one upper UW
Describe relations specific to the UW
15
Roles of Master Definition
UW1
UW3
UW2
  • Define the concept
  • Define the label for the concept
  • Build up the UNL KB

16
  • do(agtgtthing,andgtdo,bengtthing,caggtthing,cobgtthing
    ,congtthing, coogtthing,cntgtdo,durgtthing,golgtthing,i
    nsgtconcrete thing, mangthow,metgtabstract
    thing,objgtthing,plcgtplacegtthing,
    plfgtthing,pltgtthing,ptngtthing,purgtthing,rsngtthing,
    scngtthing, seqgtdo,srcgtthing,timgttime,tmfgttime,tmtgt
    time,viagtthing, iclgtverbal concept)
  • do(agtgtthing,golgtthing,iclgtdo,objgtthing,ptngtt
    hing,srcgtthing)
  • do(agtgtvolitional thing,iclgtdo(agtgtthing))
  • act(iclgtdo(agtgtvolitional thing))
  • breathe(iclgtdo(agtgtvolitional thing))
  • dance(iclgtdo(agtgtvolitional thing))

17
  • More information is available at
  • URL www.unlc.undl.org
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