Published Subject Indicators for Participant Types

PSI Metadata

Description Case role types hold a unique position in the world of modeling - they model the Participants of Situations. The same can be said of English clauses, and indeed, very close semantic ties do exist between the two.

Each case role effectively asks a broad question about some Situation (association), answered both by its Participant (role player) topic - and ALSO by the W-P semantic constraints on each caserole subtype - which should usually agree! Because of this, one can reasonably say that..

These case role types help formalize English assertions.

They work by acting as standard binding points for semantic constraints that can model clause and verb meanings in arbitrary detail. That is their main benefit to you, which CTM facilitates.

Competing lists of similar concepts have evolved over decades of NLP research, but no standard has emerged. Accordingly, neither has any standard set of semantic constraints, which cripples progress on natural language understanding.

CTM 1.0 therefore gratefully follows John Sowa's lead and declares the role type PSIs below as its standard set. Initial constraints are very limited, but do include his [classification] of Participant types, embedded as codes in each definition.

Those role types not capitalized are proposed additions for CTM 1.1. It will be kept upward compatible, and add substantially more constraints. Comments and other candidates for primitive roles are welcome from all sources.

PublisherLexikos Corporation
CreatorDan Corwin
Languagehttp://www.topicmaps.org/xtm/1.0/language.xtm#en
Version2004/08/19
StatusPre-release CTM 1.0 draft for comment
Date Published2004/07/12

Index Of Subjects

Focushttp://www.lexikos.com/psi/ctm/caserole/#1
*...THMEhttp://www.lexikos.com/psi/ctm/caserole/#11
*...PTNThttp://www.lexikos.com/psi/ctm/caserole/#12
*...RSLThttp://www.lexikos.com/psi/ctm/caserole/#13
*...Thothttp://www.lexikos.com/psi/ctm/caserole/#14
Actorhttp://www.lexikos.com/psi/ctm/caserole/#2
*...EFCThttp://www.lexikos.com/psi/ctm/caserole/#21
*...AGNThttp://www.lexikos.com/psi/ctm/caserole/#22
*...Spkrhttp://www.lexikos.com/psi/ctm/caserole/#23
Partyhttp://www.lexikos.com/psi/ctm/caserole/#3
*...EXPRhttp://www.lexikos.com/psi/ctm/caserole/#31
*...RCPThttp://www.lexikos.com/psi/ctm/caserole/#32
*...BENFhttp://www.lexikos.com/psi/ctm/caserole/#33
*...Oppohttp://www.lexikos.com/psi/ctm/caserole/#34
Locushttp://www.lexikos.com/psi/ctm/caserole/#4
*...LOChttp://www.lexikos.com/psi/ctm/caserole/#41
*...PATHhttp://www.lexikos.com/psi/ctm/caserole/#42
*...ORGNhttp://www.lexikos.com/psi/ctm/caserole/#43
*...DESThttp://www.lexikos.com/psi/ctm/caserole/#44
Timinghttp://www.lexikos.com/psi/ctm/caserole/#5
*...PTIMhttp://www.lexikos.com/psi/ctm/caserole/#51
*...DURhttp://www.lexikos.com/psi/ctm/caserole/#52
*...STRThttp://www.lexikos.com/psi/ctm/caserole/#53
*...CMPLhttp://www.lexikos.com/psi/ctm/caserole/#54
Meanshttp://www.lexikos.com/psi/ctm/caserole/#6
*...INSThttp://www.lexikos.com/psi/ctm/caserole/#61
*...MATRhttp://www.lexikos.com/psi/ctm/caserole/#62
*...MEDMhttp://www.lexikos.com/psi/ctm/caserole/#63

Focus

Published Subject Identifier: http://www.lexikos.com/psi/ctm/caserole/#1

WHAT topic's STATE (if any) is most central in the Situation?

Actor

Published Subject Identifier: http://www.lexikos.com/psi/ctm/caserole/#2

WHICH topic (if any) INITIATED the Situation action?

Party

Published Subject Identifier: http://www.lexikos.com/psi/ctm/caserole/#3

WHO (if anyone) was the action DIRECTED TOWARD?

Locus

Published Subject Identifier: http://www.lexikos.com/psi/ctm/caserole/#4

WHERE in the DOMAIN of discourse did the action occur?

Timing

Published Subject Identifier: http://www.lexikos.com/psi/ctm/caserole/#5

WHEN did the action occur? (May be context-relative)

Means

Published Subject Identifier: http://www.lexikos.com/psi/ctm/caserole/#6

HOW was the action enabled or facilitated?