Computational Intelligence - February 2014 - 20

Aldo Gangemi
LIPN, Université Paris13-CNRS-SorbonneCité, FRaNCe
STLab, ISTC-CNR, ITaLY

Valentina Presutti and Diego Reforgiato Recupero
STLab, ISTC-CNR, ITaLY

© wikimedia commons

Frame-Based
Detection of Opinion
Holders and Topics:
A Model and a Tool

S

1. Introduction

entiment Analysis (SA) aims
at identifying and extracting the attitude of a subject i.e., an opinion holder,
towards a topic, or the overall
tonality of a document. In
recent years, the exponential
increase of Internet usage and
exchange of public opinions on
*Authors are listed in alphabetical order as their
contributions are equally distributed.
Digital Object Identifier 10.1109/MCI.2013.2291688
Date of publication: 14 January 2014

20

Abstract-Sentilo is a model
the Web is the driving force behind
and a tool to detect holders and
SA and made it become one of the
topics of opinion sentences. Sentilo
implements an approach based on the neomost studied tasks of Natural LanDavidsonian assumption that events and situaguage Processing (NLP). The
tions are the primary entities for contextualizing
Web is a huge repository of
opinions, which makes it able to distinguish holdstructured and unstructured
ers, main topics, and sub-topics of an opinion. It
data: the analysis of this data in
uses a heuristic graph mining approach that relies on
FRED, a machine reader for the Semantic Web that
order to extract opinions and
leverages Natural Language Processing (NLP) and
sentiments is an opportunity as
Knowledge Representation (KR) components
well as a challenging problem.
jointly with cognitively-inspired frames. The
SA can be document-based,
evaluation results are excellent for holder
where the sentiment in the entire
detection (F1: 95%), very good for subtopic detection (F1: 78%), and good
document is summarized as positive,
for topic detection (F1: 68%).
negative or objective, as well as sen-

IEEE ComputatIonal IntEllIgEnCE magazInE | FEbruary 2014

tence based, where individual sentences

1556-603x/14/$31.00©2014IEEE



Table of Contents for the Digital Edition of Computational Intelligence - February 2014

Computational Intelligence - February 2014 - Cover1
Computational Intelligence - February 2014 - Cover2
Computational Intelligence - February 2014 - 1
Computational Intelligence - February 2014 - 2
Computational Intelligence - February 2014 - 3
Computational Intelligence - February 2014 - 4
Computational Intelligence - February 2014 - 5
Computational Intelligence - February 2014 - 6
Computational Intelligence - February 2014 - 7
Computational Intelligence - February 2014 - 8
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Computational Intelligence - February 2014 - 11
Computational Intelligence - February 2014 - 12
Computational Intelligence - February 2014 - 13
Computational Intelligence - February 2014 - 14
Computational Intelligence - February 2014 - 15
Computational Intelligence - February 2014 - 16
Computational Intelligence - February 2014 - 17
Computational Intelligence - February 2014 - 18
Computational Intelligence - February 2014 - 19
Computational Intelligence - February 2014 - 20
Computational Intelligence - February 2014 - 21
Computational Intelligence - February 2014 - 22
Computational Intelligence - February 2014 - 23
Computational Intelligence - February 2014 - 24
Computational Intelligence - February 2014 - 25
Computational Intelligence - February 2014 - 26
Computational Intelligence - February 2014 - 27
Computational Intelligence - February 2014 - 28
Computational Intelligence - February 2014 - 29
Computational Intelligence - February 2014 - 30
Computational Intelligence - February 2014 - 31
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Computational Intelligence - February 2014 - 33
Computational Intelligence - February 2014 - 34
Computational Intelligence - February 2014 - 35
Computational Intelligence - February 2014 - 36
Computational Intelligence - February 2014 - 37
Computational Intelligence - February 2014 - 38
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Computational Intelligence - February 2014 - 40
Computational Intelligence - February 2014 - 41
Computational Intelligence - February 2014 - 42
Computational Intelligence - February 2014 - 43
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Computational Intelligence - February 2014 - 46
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Computational Intelligence - February 2014 - 61
Computational Intelligence - February 2014 - 62
Computational Intelligence - February 2014 - 63
Computational Intelligence - February 2014 - 64
Computational Intelligence - February 2014 - Cover3
Computational Intelligence - February 2014 - Cover4
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