Improved GuTao method for creating user models
A user model and user information technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to handle multi-valued attributes, and achieve the effect of overcoming the defect that only single-valued attributes can be processed
Inactive Publication Date: 2013-07-31
HOHAI UNIV
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Problems solved by technology
The invention proposes to use the degree of interest as the weight as the basis for converting multiple attributes to single-valued attributes, solves the problem that the GuTao method cannot handle multi-valued attributes, and realizes the improvement of the GuTao method
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[0042] The features of the technical solution of the present invention will be further elaborated below according to the drawings in the description and in combination with implementation.
[0043] Technical scheme of the present invention mainly contains following major steps:
[0044] 1. Acquisition and preprocessing of user information
[0045] ●Using the crawler tool Web-IA to obtain user information, including: search keywords, time to enter / leave the webpage, number of webpage views, duration of webpage stay and user's access track, etc.
[0046] ● Preprocessing information, preprocessing the obtained user information data according to the compound interest degree formula 4 proposed in the present invention, to determine whether the webpage contains keywords that the user is interested in.
[0047] 2. Build domain ontology
[0048] The obtained user information is preprocessed by using the initial single-value attribute background acquisition method proposed in the sum...
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The invention discloses an improved GuTao method for creating user models, which belongs to the field of personalized information service. Interest measure is introduced as a weight so that a multi-value attribute of formal context is converted to a single-value attribute, and the shortcoming that a GuTao method only can process a single-value attribute is overcome. The method includes main stepsof 1), preprocessing user information according to a derived composite interest measure formula, and obtaining a single-value attribute background; and 2), generating a user model based on the GuTao method on the basis of single-value formal context. The improved GuTao method has the advantages that the formal context can be automatically obtained from a domain-specific concept and relationship due to the self capacity of the GuTao method, a required concept is obtained by means of semi-automatically creating a domain body and automatically eliminating concept redundancy in a classification structure, and furthermore, the improved GuTao method is greatly improved in terms of capability of processing the multi-value attribute, and provides the basis for converting the multi-value attributeto the single-value attribute.
Description
technical field [0001] The invention relates to an improved GuTao method, which is used for constructing user models and belongs to the field of personalized information services. Background technique [0002] Personalized information service includes three parts: user modeling, item matching and personalized recommendation output. Constructing user models is the basis of personalized information services. In the early stage of personalized information service research, user modeling technology has not been paid attention to. The focus of the research work is on the specific technologies of personalized information services, such as user clustering technology, recommendation technology, information retrieval technology, etc. User modeling technology is only a subsidiary of these researches. With the deepening of research, researchers gradually realized that the quality of personalized information service not only depends on the specific implementation technology, but also ...
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IPC IPC(8): G06F17/30
Inventor 许国艳于天枢
Owner HOHAI UNIV