Building Domain Ontologies from Text for Educational Purposes (revised July 2008)
نویسندگان
چکیده
This paper presents a semi-automatic framework that aims to produce domain concept maps from text and then to derive domain ontologies from these concept maps. This methodology particularly targets the eLearning and AIED (Artificial Intelligence in Education) communities as they need such structures to sustain the production of eLearning resources tailored to learners’ needs. This paper details the steps to transform textual resources, particularly textual learning objects (LOs), into domain concept maps and it explains how this abstract structure is transformed into a formal domain ontology. A methodology is also presented to evaluate the results of ontology learning. The paper shows how such structures (domain concept maps and formal ontologies) make it possible to bridge the gap between eLearning and Intelligent Tutoring Systems by providing a common domain model.
منابع مشابه
Presenting a method for extracting structured domain-dependent information from Farsi Web pages
Extracting structured information about entities from web texts is an important task in web mining, natural language processing, and information extraction. Information extraction is useful in many applications including search engines, question-answering systems, recommender systems, machine translation, etc. An information extraction system aims to identify the entities from the text and extr...
متن کاملOntologies, Taxonomies, Thesauri: Learning from Texts
The use of ontologies as representations of knowledge is widespread but their construction, until recently, has been entirely manual. We argue in this paper for the use of text corpora and automated natural language processing methods for the construction of ontologies. We delineate the challenges and present criteria for the selection of appropriate methods. We distinguish three major steps in...
متن کاملThe domain model of an adaptive learning system for poor comprehenders
Comprehension of stories involves the decoding of the text, the activation of prior knowledge and, ultimately, the construction of a coherent mental representation of what the story is about. Nowadays, more and more 8-10 year-old children turn out to be poor comprehenders: they demonstrate text comprehension difficulties, despite proficiency in decoding and well developed low-level cognitive sk...
متن کاملMining Ontologies from Text
Ontologies have become an important means for structuring knowledge and building knowledge-intensive systems. For this purpose, efforts have been made to facilitate the ontology engineering process, in particular the acquisition of ontologies from domain texts. We present a general architecture for discovering conceptual structures and engineering ontologies. Based on our generic architecture w...
متن کاملAIML Knowledge Base Construction from Text Corpora
Text mining (TM) and computational linguistics (CL) are computationally intensive fields where many tools are becoming available to study large text corpora and exploit the use corpora for various purposes. In this chapter we will address the problem of building conversational agents or chatbots from corpora for domain-specific educational purposes. After addressing some linguistic issues relev...
متن کامل