Abstract. Summary extract of heterogeneous multimedia documents is an important content and requirement of information management at the Internet era. Though some summary extract approaches have been proposed in recent years, in general they can only be used in a single-type media. More important is that the existed approaches of multimedia summary extract had no satisfactory effects, and can't be brought into practice. Aiming at these problems, an approach based on folksonomy with incentive and quality assurance mechanisms is put forward. The proven folksonomy ensures the practicality of the approach, the incentive and quality assurance mechanisms avoid the innate problems of folksonomy: cold boot and inaccurate tagging. The experiment shows that the approach is reasonable and effective.
Aiming at the drawbacks that are found by analyzing online teaching at the present, we discuss the impact of concept and technology of Web2.0 on collaborative learning and knowledge construction. In order to improve the quality of online teaching and learning, a new collaborative learning mode is proposed based on constructivism theory and Web2.0 technology in this paper, and its characteristics is interpreted in detail. The mode includes some popular technologies, such as blog, wiki, tagging, and so on. With the further popularization of Internet and mobile Internet, the new mode will have an important and positive impact on online teaching, which is beneficial to learners by providing hierarchical online teaching resources, and training autonomous learning ability of learners in the long run.
With the rapid development of e-commerce, the shortage of talents related to e-commerce has become increasingly prominent. The knowledge and abilities of students cultivated under the traditional teaching mode are seriously out of line with each other. Most of them lack the cognition of vocational ability requirements and have poor practical ability. Although they are graduates of e-commerce major, they are not competent for the practical work of e-commerce related posts. In order to solve above problems, this paper puts forward an immersive teaching mode of e-commerce course group, which is oriented to the cultivation of vocational abilities. The promotion and application of the research results can realize the seamless connection between talent training and enterprise demands and effectively improve the quality of talent training, so as to on the one hand effectively improve the employment rate of students, on the other hand effectively serve the regional economic development, eventually achieve a win-win situation among students, schools, enterprises and society.
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