Toward Plot Units: Automatic Affect State Analysis - University of Utah

50 Pages·2010·0.28 MB·English

by  Amit Goyal

Toward Plot Units:
Automatic Affect State Analysis
Amit Goyal, Ellen Riloff, Hal Daume´ III and Nathan Gilbert
email: {amitg,riloff,hal,ngilbert}@cs.utah.edu
web: http://www.cs.utah.edu/˜amitg/
NAACL-HLT 2010
Workshop on Emotion in Text
5th June 2010
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(1/20)
Types of Affect States:
Mental (M)
Positive (+)
Negative (-)
Types of Causal Links
Motivation (m) links must point to M state
Actualization (a) links must point to +/- state
Termination (t) and Equivalence (e) links points backwards:
fromMstatetoMstate
from+/-stateto+/-state
Types of Cross character Links
Can occur between any pair of affect states
e.g. M to M (request) or + to + (shared)
Overview of Plot Units
Understand narrative text [Lehnert,1981]
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(2/20)
Types of Causal Links
Motivation (m) links must point to M state
Actualization (a) links must point to +/- state
Termination (t) and Equivalence (e) links points backwards:
fromMstatetoMstate
from+/-stateto+/-state
Types of Cross character Links
Can occur between any pair of affect states
e.g. M to M (request) or + to + (shared)
Overview of Plot Units
Understand narrative text [Lehnert,1981]
Types of Affect States:
Mental (M)
Positive (+)
Negative (-)
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(2/20)
Types of Cross character Links
Can occur between any pair of affect states
e.g. M to M (request) or + to + (shared)
Overview of Plot Units
Understand narrative text [Lehnert,1981]
Types of Affect States:
Mental (M)
Positive (+)
Negative (-)
Types of Causal Links
Motivation (m) links must point to M state
Actualization (a) links must point to +/- state
Termination (t) and Equivalence (e) links points backwards:
fromMstatetoMstate
from+/-stateto+/-state
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(2/20)
Overview of Plot Units
Understand narrative text [Lehnert,1981]
Types of Affect States:
Mental (M)
Positive (+)
Negative (-)
Types of Causal Links
Motivation (m) links must point to M state
Actualization (a) links must point to +/- state
Termination (t) and Equivalence (e) links points backwards:
fromMstatetoMstate
from+/-stateto+/-state
Types of Cross character Links
Can occur between any pair of affect states
e.g. M to M (request) or + to + (shared)
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(2/20)
John Paul
(car won’t start)
a1
s1
m
t
(wants car started) request
s2 a2 (agrees to help)
a a s2 a3
shared (gets it started)
(starts it) s3 a4
s4 a5
Example of Plot Units
(s1) When John tried to start his car this morning, it wouldn’t turn over.
(s2) He asked his neighbor Paul for help. (s3) Paul did something to
the carburetor and got it going. (s4) John thanked Paul and drove to
work.
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(3/20)
Example of Plot Units
(s1) When John tried to start his car this morning, it wouldn’t turn over.
(s2) He asked his neighbor Paul for help. (s3) Paul did something to
the carburetor and got it going. (s4) John thanked Paul and drove to
work.
John Paul
(car won’t start)
a1
s1
m
t
(wants car started) request
s2 a2 (agrees to help)
a a s2 a3
shared (gets it started)
(starts it) s3 a4
s4 a5
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(3/20)
M revealed through speech acts
thewolfaskedaneagletoextractthebone
Sentiment analysis captures some of the affect states
Direct Expressions of Emotion
1. Maxwasdisappointed2. Maxwaspleased
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(4/20)
Sentiment analysis captures some of the affect states
Direct Expressions of Emotion
1. Maxwasdisappointed2. Maxwaspleased
M revealed through speech acts
thewolfaskedaneagletoextractthebone
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(4/20)
Always with respect to a character
BenazirBhuttowasassassinatedbyAl-Qaeda
Need verbs like eaten/praise which are -/+ for PATIENT
Thedeerwaseatenbythelion
Thedeerwaspraisedbythelion
Plans and Goals represented as a mental state (M)
Inferredfromactions: thelionhunteddeer
Plancompletionproduces+/-affectstates
theeaglesuccessfullyextractsthebonefromthewolf’sthroat
World Knowledge e.g. John is hungry/thirsty
Affect state analysis is not Sentiment analysis
Actions or bad situations rather than opinions
John’scarwouldn’tturnover
EMOTION2010 AmitGoyal(UniversityofUtah) TowardPlotUnits:AutomaticAffectStateAnalysis(5/20)