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    Method and apparatus for default rating estimation
    1.
    发明专利
    Method and apparatus for default rating estimation 未知

    公开(公告)号：AU2008362901A1

    公开(公告)日：2010-04-22

    申请号：AU2008362901

    申请日：2008-10-17

    Applicant: ERICSSON TELEFON AB L M

    Inventor： LIDSTROM MATTIAS ,  BJORK JONAS ,  SODERBERG JOAKIM

    IPC: G06Q30/00

    Abstract: A method of estimating a default rating of a rated dataset is provided, where the dataset comprises at least one series of ratings associated with at least one user and each series comprise ratings associated with at least two items. For a reference user and an item for which a rated value is missing the item's average rating, ir, the reference users average rating, Ru, and the datasets average rating, dr, is collected. A Poisson distribution of the reference users rating is then generated on the basis of the reference users average rating. A random Poisson rating, ur, is calculated on the basis of the Poisson distribution, and a default rating, r, is estimated by weighting the random Poisson rating on the basis of the items average rating, the users average rating and the datasets average rating.

    System and methods for updating user profiles and providing selected documents to users
    2.
    发明专利
    System and methods for updating user profiles and providing selected documents to users 未知

    公开(公告)号：AU2010241537B2

    公开(公告)日：2012-10-18

    申请号：AU2010241537

    申请日：2010-11-22

    Applicant: ERICSSON TELEFON AB L M

    Inventor： MORITZ SIMON ,  BJORK JONAS ,  CARLSSON RICHARD ,  OLSSON HJALMAR

    IPC: G06F17/30

    Abstract: The present invention provides an improved recommender system. In some embodiments, the recommender system automatically builds a user profile for a user based solely on the action or actions the user takes with respect to certain documents and the contents of the documents. That is, the profile is based on implicit ratings. In addition to maintaining a user profile for each user, each document in a set of documents will have its own document profile, which is also referred to as a document vector. Advantageously, in some embodiments, the user profile will consist of the same attributes as the document vectors, This advantageous feature enables the recommender system to compare users and documents in order to generate recommendations. document: 1667747 Ericsson Ref: P29521_US1 24 Rfem Ref: 3602-180

    SYSTEM AND METHODS FOR UPDATING USER PROFILES AND PROVIDING SELECTED DOCUMENTS TO USERS
    4.
    发明专利
    SYSTEM AND METHODS FOR UPDATING USER PROFILES AND PROVIDING SELECTED DOCUMENTS TO USERS 未知

    公开(公告)号：NZ588714A

    公开(公告)日：2012-05-25

    申请号：NZ58871410

    申请日：2010-10-20

    Applicant: ERICSSON TELEFON AB L M

    Inventor： MORITZ SIMON ,  BJORK JONAS ,  CARLSSON RICHARD ,  OLSSON HJALMAR

    IPC: G07F17/30 ,  G06Q30/00

    Abstract: A method performed by a document server for updating and/or creating a profile associated with a user of a client device and a document serving system for creating and/or updating a set of term/value pairs associated with a user are disclosed. The document serving system (106) comprises a data processing system (202); a data storage system (206) accessible to the data processing system; and a network interface (204) coupled to a network (110). The data processing system is configured to select a document containing a set of one or more terms. If there is a profile associated with the user, the selection of the document is based on the profile, and if there is no profile associated with the user, a profile is created and is associated with the user, and the selection of the document is not based on the profile. The data processing system is further configured to transmit the document to a user via the network interface and the network; receive information identifying an action or actions the user took with respect to the document; establish a set of term/value pairs in response to receiving the information where each the pair consists of a term and an associated value. The data processing system is configured to establish the set of term/value pairs by determining, for each term included in the set of terms, a value to associate with the term, the value being a function of the user's action or actions. The data processing system is further configured to store in the data storage system the set of term/value pairs such that the set of term/value pairs is associated with the user.

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