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In this paper, the principles of organization of a scientific information system on active seismology providing a holistic view of the subject and various aspects of scientific activity are considered. The subject ontology of “Active Seismology” is used as the conceptual basis and information model for the system.
Recently, the use of service robots has increased considerably and their social contribution is expected. It is desirable that a robot, as a provider of operational information, can answer questions in both the open domain and intended operations, to respond to questions in a manner that satisfies users. This paper proposes a question answering system that can respond to questions in both intended...
This paper proposes a new travel recommendation system, which aims to provide a unified solution to user demands. It is a hybrid system that combines Case-Based Reasoning with domain-specific ontology. Queries can be constructed template-based or in natural language and a relaxation query management strategy is developed. The solution space is searched from two perspectives: relevance and diversity...
Ontology is essential in the formalization of domain knowledge for effective human-computer interactions (i.e., expert-finding). Many researchers have proposed approaches to measure the similarity between concepts by accessing fuzzy domain ontology. However, engineering of the construction of domain ontologies turns out to be labor intensive and tedious. In this paper, we propose an approach to mine...
The web size is increasing continuously. Chinese researchers have shown that web growth obeys the Moor's law and the Internet will double in size every 5.32 years. The more the Internet is growing; the more tendencies the people have to use the search engines. Moreover, since most of the commercial search engines are based on keyword indexing, there are many records in their result lists that are...
The use of domain knowledge is generally found to improve query efficiency in content filtering applications. In particular, tangible benefits have been achieved when using knowledge-based approaches within more specialized fields, such as medical free texts or legal documents. However, the problem is that sources of domain knowledge are time consuming to build and equally costly to maintain. As a...
Social bookmarking tools are rapidly emerging on the Web as it can be witnessed by the overwhelming number of participants. In such spaces, users annotate resources by means of any keyword or tag that they find relevant, giving raise to lightweight conceptual structures aka folksonomies. In this respect, needless to mention that ontologies can be of benefit for enhancing information retrieval metrics...
This paper presents an ontology-based semantic search system called Smartch. This system allows users to search concepts and association relationships based on domain ontology. Compared to current search methods, Smartch provides a kind of user-defined graphical queries and a function of searching the association relationships that exist between two concepts or instances. It makes use of a novel ranking...
All I know is that I know nothing (Socratic Ignorance). The world is an increasingly complex with problems that require swift resolution. Although knowledge is widely available, be it stored in companies' databases or spread over the Internet, humans have intrinsic limitations for handling very large volumes of information or keeping track of frequent updates in a constantly changing world. Moreover,...
The constant growth of the Internet has made recommender systems very useful to guide users coping with a large amount of data. In this paper, we present a domain independent collaborative and semantic-based recommender system which uses distinct and complementary modules. The approach targets users with various interests and is based on: (i) a collaborative module using association rules in order...
To elicit software requirements, we have to have knowledge about a problem domain, e.g., healthcare, shopping or banking where the software is applied. A description of domain knowledge such as a domain ontology helps requirements analysts to elicit requirements completely and correctly to some extent even if they do not have such knowledge sufficiently. Several requirements elicitation methods and...
There are two issues of ontology building and evaluating: 1) ontology construction is apart from ontology evaluation; 2) current methods more or less overlooked the role of ontology end-user. Our contribution is that this paper proposes a Web-based ontology development framework, with domain experts, ontology engineers and end users to participate in it, which emphasizes on the continuity between...
Web service is expected to be the key technology of implementing SOA solution on the Internet. However, it is more and more difficult to find suitable services with the increase in Web services. Service Network (SN), which is a semantic relation based Web service infrastructure, is proposed to bridge the gap between service providers and service consumers. In this paper, we discuss the whole process...
The rapid growth in the development of Internet-based information systems increases the demand for natural language interfaces that are easy to set up and maintain. Unfortunately, the problem of deep understanding natural language queries is far from being solved. In this paper, an automated question answering system based on domain ontology and question template is proposed, which does not need deep...
This paper discusses a modality to access and to organize unstructured contents related to a particular topic coming from the access to Wikipedia pages. The proposed approach is focused on the acquisition of new knowledge from Wikipedia pages and is based on the definition of useful patterns able to extract and identify novel concepts and relations to be added in the knowledge base. We proposes a...
Learning ontology from text is a challenge in knowledge engineering research and practice. Learning relations between concepts is even more difficult work. However, when considering only a particular domain in which the concept hierarchy and relations can be modeled manually within an acceptable period of time, the learning process may be simplified. We focus on learning composite concepts and building...
A semantic annotation method for web database query result which is under the condition of uncertain schema information is proposed in this paper by adopting the reinforcement learning method. Using domain ontology to annotate the query result, this paper takes the mapping between domain ontology and query result as a process of finding the best strategy. By training the numeric attribute value, we...
This system proposes Indian-logic ontology based Context-aware Query Refinement model to support context-sensitive semantic search in keyword based search engine. This is by formulating effective query using Indian logic based Ontology for Context identification to overcome ambiguous query terms and increase the relevancy of documents retrieved. Here we propose Indian-Logic based Context Ontology...
Semantic retrieval is a hot area of Web search technology constantly because of the growing information. This paper proposed a creative semantic retrieval method with Path Weight Semantic Distance (PWSD) algorithm which is improved from current model. Based on the domain ontology built by protege, PWSD considers both the hierarchy and the property restrictions of the concepts synthetically, and provides...
With the number of services published on the Internet growing at an explosive speed, it is difficult for service requesters to discover satisfactory web services. The reason for this phenomenon is that traditional service organization mode lacks semantic information metadata, which results in low discovery effect. In this paper, we firstly give a service description model and then present an overall...
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