68 research outputs found
Towards automatic construction of domain ontologies: Application to ISA88 and assessment
Process Systems Engineering has shown a growing interest on ontologies to develop knowledge models, organize information, and produce software accordingly. Although software tools supporting the structure of ontologies exist, developing a PSE ontology is a creative procedure to be performed by human experts from each specific domain. This work explores the opportunities for automatic construction of domain ontologies. Specialised documentation can be selected and automatically parsed; next pattern recognition methods can be used to extract concepts and relations; finally, supervision is required to validate the automatic outcome, as well as to complete the task. The bulk of the development of an ontology is expected to result from the application of systematic procedures, thus the development time will be significantly reduced. Automatic methods were prepared and applied to the development of an ontology for batch processing based on the ISA88 standard. Methods are described and commented, and results are discussed from the comparison with a previous ontology for the same domain manually developed.Postprint (published version
Improving automation standards via semantic modelling: Application to ISA88
Standardization is essential for automation. Extensibility, scalability, and reusability are important features for automation software that rely in the efficient modelling of the addressed systems. The work presented here is from the ongoing development of a methodology for semi-automatic ontology construction methodology from technical documents. The main aim of this work is to systematically check the consistency of technical documents and support the improvement of technical document consistency. The formalization of conceptual models and the subsequent writing of technical standards are simultaneously analyzed, and guidelines proposed for application to future technical standards. Three paradigms are discussed for the development of domain ontologies from technical documents, starting from the current state of the art, continuing with the intermediate method presented and used in this paper, and ending with the suggested paradigm for the future. The ISA88 Standard is taken as a representative case study. Linguistic techniques from the semi-automatic ontology construction methodology is applied to the ISA88 Standard and different modelling and standardization aspects that are worth sharing with the automation community is addressed. This study discusses different paradigms for developing and sharing conceptual models for the subsequent development of automation software, along with presenting the systematic consistency checking methodPeer ReviewedPostprint (author's final draft
Method of Extracting Is-A and Part-Of Relations Using Pattern Pairs in Mass Corpus
PACLIC 23 / City University of Hong Kong / 3-5 December 200
Extraction of Word Set for Increasing Human-Computer Interaction in Information Retrieval
We present a mechanism that provides word sets which can make human-computer interaction more active in the course of information retrieval, with natural language processing technology and a mathematic measure for calculating degree of inclusion. We show what type of words should be added to the current query, i.e. keywords which previously had been input, in order to make human-computer interaction more creative. We try to extract related word sets with taxonomical and non-taxonomical relations from documents by employing case-marking particles derived from syntactic analysis. Then, we verify which kind of related words is more useful as an additional word for retrieval support and makes human-computer interaction more fruitful
Competency assessment of short free text answers
The increased adoption of competency-based
education has posed the need of an automated competency
assessment. Most of the existing assisted assessment does not
cater for competency assessment. The high percentage on the use
of short free text answer as competency assessment shows that
the need of the competency assisted assessment is urgent. This
paper studies on the need and also review on existing assisted
assessments focusing on short free text answer. A Node Link
(NL) Scoring technique is proposed as an alternative automated
solution to assess learners’ competency in short free text answers.
Keyword: competency assessment; short free text answers; Node
Link Scoring techniqu
PARNT: A statistic based approach to extract non-taxonomic relationships of ontologies from text
Learning Non-Taxonomic Relationships is a subfield
of Ontology learning that aims at automating the
extraction of these relationships from text. This article
proposes PARNT, a novel approach that supports ontology
engineers in extracting these elements from corpora of plain
English. PARNT is parametrized, extensible and uses original
solutions that help to achieve better results when compared to
other techniques for extracting non-taxonomic relationships
from ontology concepts and English text. To evaluate the
PARNT effectiveness, a comparative experiment with another
state of the art technique was conducted.This work is supported by CNPq and CAPES, research funding agencies of the Brazilian government
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