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Supervised learning is a popular approach to text classification among the research community as well as within software development industry. It enables intelligent systems to solve various text analysis problems such as document organization, spam detection and report scoring. However, the extremely difficult and time intensive process of creating a training corpus makes it inapplicable to many...
As a practical and efficient technique to access XML data, keyword query approaches should address two main problems: enable users to express their query intentions accurately and provide matching algorithms to realize users' query intentions faithfully. Most of the existing researches concentrate on the second
In general, content-based recommender systems use a keyword vector to locate recommendations. However, this method does not consider relations of each keyword and it is also inscrutable to users, who may have a hard time determining which words in their profiles are important and which may be skewing their results to
Keywords are indexed automatically for large-scale categorization corpora. Indexed keywords of more than 20 documents are selected as seed words, thus overcoming subjectivity of selecting seed words in clustering; at the same time, clustering is limited to particular category corpora and keywords indexed feature
(e. g. writing summary) and provides more relevant, personalized recommendations. Keyword maps proposed with keywords and various relations among them in this article describe content of each learning object and knowledge of each learner existing. The research hypothesizes that keyword maps should help to increase both
expansion of the keyword lexicon used to discover IED related web pages, which identified new relevant terms for inclusion. Additionally, we present an improved web page feature representation designed to better capture the structural and stylistic cues revealing of genres of communication, and a series of experiments
The present paper describes an approach for keyword- and concept-based search of relevant learning objects and delivery of them to learners. The paper also proposes to blend the keyword- and concept-based search with personalization to increase relevancy of delivered documents to the learners preferences. The
their historical and social context by understanding how the major topics associated with them have changed over time. Users can relate articles through time by examining the topical keywords that summarize a specific news event. By tracking the attention to a news article in the form of references in social media (such as
A keyword-based query is not sufficient for retrieving presentations. We assume that episodic memories about authoring slides and giving a presentation can be used for query because users easily recall and recognize slides associated with such memories. In this study, we present slide retrieval based on research
The keyword which describes in the most effective way Twenty-first century Higher education is suggested by Daniel et al. (2009) and it is ??expansion??. More and more people will invest in their own education and in this process higher education is on the front line. The need for education and training, though
The retrieval for educational course materials is mainly based on the keyword based match, educational course materials can not be achieved in a semantic way. The paper proposed the onto-query system, a specific semantic query system for educational domain. The paper first constructs the ontology for the instructional
the characteristics of special news text sets, we extracted the keywords of news texts from five factors; then we process the keywords by methods of abstracted or decomposed; further a relevance network of keywords is constructed in accordance with the processed keywords to realize the information visualization of
, this study mainly designs a concept-map-oriented e-book teaching material design system. First, the teachers plan out the concept maps of the teaching materials according to their teaching experience, next, the system connects to the online e-book library, as based on the keywords on the concept maps, to obtain relevant
Need for the robot-manipulator on the mobile robot is increasing. If the mobile manipulator is used in the on-road environment, the design concept of the manipulator is not different. But if it is designed for an off-road environment, it has to be designed to get over the vibrational forces induced by the off-road traveling. For the mobile platform, the design concept and process have been developed...
LiFePO4/C nanoparticles were synthesized by solid state reaction and controlled cooling rates. LiFePO4/C samples showed olivine phase irrespective of the cooling rate. However, the average particle sizes significantly changed with the cooling rate; the particle size was 200 nm when prepared by slow cooling (10°C/min) and 120 nm by fast cooling (air quenching). Assembled coin cells exhibited first...
The sexual exploitation of children online is seen as a global issue and has been addressed by both governments and private organizations. Efforts thus far have focused primarily on the use of image hash value databases to find content. However, recently researchers have begun to use keywords as a way to detect child
In this article, course study and reform on teaching The Principles of Database System is demonstrated from three aspects: class teaching, experimental teaching, and course design. Class teaching is enhanced by considering integration of course content, flexibility and inspiration in teaching style, motivation derived from problem solving and case study. For experimental teaching, the article puts...
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