57 results about "Information filtering system" patented technology

Organization definition information M31 is stored in an organization definition information storage unit 31, contents M33 to be provided to a user is stored in a contents storage unit 33 and filter definition information M22 which is sent from a filter definition information generation unit 22 is stored in a filter definition information storage unit 32. A filtering execution unit 23 obtains information M10c on the contents, in which necessary information is stored, from the user, obtains filter definition information M32 on the contents, specified by the information M10c, from the filter definition information storage unit 32, obtains user's organization definition information M31, specified by filter definition information M32, from an organization definition information storage unit 31, builds a filter, and executes filtering to the contents M33.

The invention provides a control method for setting an obstruction for junk information, which comprises the following steps: a, determining the credit rating of a user; b, determining the attribute of an identifying code according to the credit rating; and c, providing the identifying code to the user. The invention further provides a control device for setting the obstruction for the junk information, which comprises a first determining device, a second determining device and a first providing device, wherein the first determining device is used for determining the credit rating of the user; the second determining device is used for determining the attribute of the identifying code according to the credit rating; and the first providing device is used for providing the identifying code for the user. Through providing identifying codes with different attributes, such as different character lengths, for different users, the obstruction is set for the issuing of the junk information; simultaneously, the identifying code which is input easily is provided for a high-credit user; and the experience extent of the user is improved. The control method and the control device can be widely applicable to information filtering systems; through using the control method and the control device, the obstruction for the issuing of the information is set for a potential junk information issuer; and the issuing amount of the junk information in a network environment is reduced effectively.

The present invention aims to effectively restrict access of a general user to an inappropriate information piece at the judgment of an information manager. In order to pick up a desired information from an information storage medium or an information communication network while excluding inappropriate information, an information manager inputs suitability of information (a teacher signal) to an information presented at a user terminal 21 to a group profile learning unit 16 and prepares a group profile reflecting suitability of the information as specified by the information manager using the teacher signal. At a score calculating unit 13, a score signal indicating suitability of information is calculated for each information using the group profile, and access of an information user in a group to inappropriate information is restricted.

The invention discloses a harmful information filtration system based on mobile Internet and a method thereof, which belongs to the communication field. The system comprises a core network provided with a data acquisition unit, a data restore unit, a storage unit, a harmful information interception unit, a harmful information recognition unit and a harmful information reveal and configuration unit; the core network, the data acquisition unit, the data restore unit, the harmful information recognition unit, the storage unit and the harmful information reveal and configuration unit are sequentially connected; the harmful information recognition unit, the harmful information interception unit and the core network are sequentially connected. The invention can make real-time analysis on the harmful information of all mobile Internet users, and provides the corresponding interception function, increases the automation degree and the accuracy of the harmful information filtration system of the mobile Internet, and can be used as an import means for the telecom operators to build the mobile Internet bawdy pornography information discovery and filtration.

The invention provides an ordering strategy-based information filtering system, which relates to the technical field of information filtering, and solves the problems of inconsistency between an optimization objective and a filtering problem evaluating indicator, the deviation of a model optimization result and restricted performance in the conventional information filtering model. The information filtering system of the invention consists of a training model, a filter and a feature weight library, wherein a method for identifying a new information unit by the filter comprises the following steps: converting an information filtering problem into an ordering problem; performing optimization aiming at a core evaluating indicator 1-ROCA; establishing an ordering strategy-based information filtering model, wherein the ordering strategy-based information filtering model adopts an ordering logistic regression learning algorithm and comprehensively uses a TONE strategy-based parameter weight updating algorithm and resampling technology to obtain a weight parameter and obtain a prediction score value of the new information unit; and judging the attribute of a new mail according to the result of comparison of the prediction score with a predetermined threshold. The method of the invention can be applied to various information filtering and information push systems.