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Recently,ontology learning is considered as a new research hotspot in computer science. Introduced the merit and the working theory of ontology learning tool-Text2Onto in order to make the construction of Chinese ontology more convenient. According to the characteristics of Chinese and the differences between Chinese and English, proposed a Chinese ontology learning framework based on Text2Onto. Discussed...
This paper researches semantic annotation for professional documents on the web by using existed domain ontologies, and then proposes a semantic annotation approach for professional documents based on domain ontology partition. Firstly, we divide the domain ontology according to certain rules to form some domain ontology segments, and then, choose the most similar domain ontology segment(s) via calculating...
Collaborator's competencies play an import role in Computer-Supported Collaborative Learning (CSCL). Referring two existed learner metadata, we, from a human-centered viewpoint, create a new one which consists of two kinds of elements: automatic elements and manual elements. Then by analyzing characters of learner in the collaboration, we believe that the learners in the system form a P2P network...
The aim of ontology research is to develop knowledge representations that can be shared and reused. Domain ontologies provide shared and common understanding of a specific domain. In this paper, we discuss and analyze some ontology development methodologies. Based on the analysis of these methodologies and IEEE Standard for developing software life cycle processes, we propose a knowledge engineering...
This paper investigates some properties of two-way alternating pushdown automata with only existential (universal) states which have inkdots and sublogarithmic space. We show, for example, that for sublogarithmic space-bounded computations, multi-inkdot two-way alternating pushdown automata with only existential states are incomparable with the ones with only universal states, and the classes of sets...
This paper proposes a strategy of query optimization based on domain ontology. Three kinds of query optimization respectively based on is-a relation, part-of relation, and equivalent-class relation in the domain ontology are investigated. By using this strategy, a domain-specific information searching system building upon GoogleAPI and domain ontology is built, where optimized user query is processed...
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