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40results about How to "In line with interest" patented technology

Advertisement click rate estimation method based on decision tree, application recommendation method and device

InactiveCN105631707AAccurate click rateClick-through rate estimates are accurateAdvertisementsRelevant featurePersonalization
The present invention provides an advertisement click rate estimation method based on a decision tree and a device. The method comprises a step of obtaining the related characteristic information of a specific historical advertisement in a predetermined historical time period, a step of obtaining the personalized characteristic information of a target user, a step of carrying out decision tree model calculation based on the obtained target user personalized characteristic information and the related characteristic information of the specific historical advertisement so as to determine a cross characteristic vector for estimating the click rate of the specific historical advertisement, wherein each leaf node of the decision tree model represents one cross characteristic, a step of calculating based on the cross characteristic vector and the model training parameter obtained from training in advance so as to estimate the click rate of the specific historical advertisement. The invention also provides an application software recommendation method and a device. According to the method or the device, through the decision tree model, the cross characteristic with a strong classification characteristic is generated, and thus the advertisement click rate is accurately and rapidly estimated.
Owner:BEIJING QIHOO TECH CO LTD +1

Video recommendation method and related device

The embodiment of the invention provides a video recommendation method and a related device, which can improve the semantic representation of a video so as to recommend the video which is more suitable for the interest of a user to the user. The method comprises the following steps of determining a target image feature vector; determining a target text feature vector; determining a target audio feature vector; based on the target image feature vector, the target text feature vector and the target audio feature vector, obtaining the semantic representation of the target video through a targetsemantic conversion model, wherein the target semantic conversion model corresponds to the target image feature, the target text feature and the target audio feature; and when the semantic representation of the target video is matched with the interest portrait of the target object, pushing the target video to the target object.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Dynamic user attribute extraction method based on social media

The invention discloses a dynamic user attribute extraction method based on social media. The dynamic user attribute extraction method includes the steps: firstly, performing text preprocessing for an acquired training sample set and extracting subject terms to obtain K subjects and m subject terms of each subject; secondly, extracting short texts of a user to be processed, dividing time sub-segments, filling data through a time sliding window to obtain text data of the time sub-segments, counting the occurrence frequency of the subject terms after text preprocessing to obtain attribute weight information of the subjects, introducing time attenuation coefficient, sequentially acquiring user attribute features associated with time attributes in time sequence, extracting the user attribute features of the latest time sub-segment as current user attribute features and outputting the current user attribute features. Without external knowledge, the short texts of the social media are semantically expanded by disordered words in the texts, and dynamic user attributes can be extracted from micro-blog texts released or forwarded by users.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Graph structure-based recommendation method, apparatus and device, and storage medium

The invention relates to a graph structure-based recommendation method, apparatus and device, and a storage medium. The graph structure-based recommendation method comprises the steps of obtaining attribute information of each video; According to the attribute information, calculating the common similarity between every two videos; Generating a candidate recommendation set according to the generalsimilarity; Obtaining a user historical operation record of the user identifier according to the user identifier; Calculating a recommendation weight parameter according to the historical operation record of the user; Calculating the final similarity between each video and the user identifier according to the recommendation weight parameter; And sending a video recommendation result to the user identifier according to the final similarity. The video recommendation method has the effects of improving the video recommendation result and enabling the video recommendation result to be closer to the interest of the user.
Owner:广州市易杰数码科技有限公司

Method and device for recommending search terms based on input search terms

The invention provides a method and device for recommending search terms based on input search terms. The method comprises the following steps: determining a matching degree between a search term input by a user and an application in a preset application library; using a label set belonging to the application having the highest matching degree as a label set of the input search term; determining first similarity between every two applications in the preset application library; determining second similarity between the input search term and other search terms in a preset search term set based on the matching degree, the label set of the input search term, and the first similarity; and selecting a certain number of search terms from the preset search term set in a predetermined manner based on the second similarity to be recommended to the user.
Owner:ALIBABA (CHINA) CO LTD

Television video recommendation method and device, server and storage medium

The invention provides a television video recommendation method and device, a server and a storage medium, and relates to the technical field of digital televisions. The method comprises the followingsteps: receiving an operation request sent by television equipment, wherein the operation request comprises identification information of the television equipment and user behavior data for operatingthe television equipment; according to the identification information, obtaining a video matrix corresponding to the television equipment, a video recommendation model corresponding to the televisionequipment and family portrait features of the television equipment, wherein the video matrix comprises recommended videos of multiple roles; adopting a video recommendation model to process the userbehavior data, the family portrait features and the video matrix so as to determine a recommended video of the target role from the video matrix; and pushing the recommended video of the target role to the television equipment. According to the invention, personalized recommendation service can be provided for each family role, and the recommendation effect is improved.
Owner:FUTURE TV CO LTD

News recommendation method and device based on multi-feature fusion

The invention discloses a news recommendation method based on multi-feature fusion, and the method comprises the steps: obtaining a multi-feature vector of each piece of to-be-recommended news in a to-be-recommended news set when a triggering condition for news recommendation to a target user is reached; determining a user portrait of the target user; determining a first recommendation result based on the user portrait and the topic feature vector of each piece of to-be-recommended news in the to-be-recommended news set; determining a second recommendation result based on the currently browsednews of the target user and the keyword vector, the title and the abstract feature vector of each piece of to-be-recommended news in the to-be-recommended news set; and determining a final recommendation result according to the first recommendation result and the second recommendation result, and recommending the final recommendation result to the target user. By applying the technical scheme provided by the invention, the news recommended to the user more conforms to the interest of the user and is more targeted, and the browsing experience of the user is improved. The invention further discloses a news recommendation device based on multi-feature fusion. The news recommendation device has corresponding technical effects.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Methods and devices for constructing and using knowledge model of session system

The invention discloses a method and device for constructing and using a knowledge model of a session system, and the method for constructing the knowledge model of the session system comprises the steps: abstracting at least one theme associated with a knowledge point from the knowledge point in the session system; constructing a system theme tree based on the at least one theme; determining an association relationship among the knowledge points based on the system topic tree; and constructing a session system knowledge model at least based on the association relationship between the system topic tree and each knowledge point. Knowledge points are abstracted into at least one topic.. A topic tree is constructed by utilizing a topic, the association relationship among the knowledge pointsis determined according to the topic tree, and then the knowledge model of the session system can be constructed for recommending questions or answers to the user in the subsequent heuristic session process, so that questions or contents which more accord with the interest of the user can be recommended to the user.
Owner:AISPEECH CO LTD
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