公开(公告)号：US08069010B2

公开(公告)日：2011-11-29

申请号：US12174081

申请日：2008-07-16

申请人： Sung-hwan Choi ,  Cheol-ju Hwang ,  Jae-hwang Lee ,  Jeong-rok Jang ,  Yun-ju Choe ,  Do-yeon Kim

发明人： Sung-hwan Choi ,  Cheol-ju Hwang ,  Jae-hwang Lee ,  Jeong-rok Jang ,  Yun-ju Choe ,  Do-yeon Kim

IPC分类号： G06F17/15

CPC分类号： G06Q30/02

摘要： A method and apparatus for predicting content preferences of an active user with reference to content preferences of other users that are similar to those of the active user, the method including: measuring similarity ratios of the active user and other users using an overlapping ratio of use of content items commonly used between the active user and the respective other users; generating a recommender list for the active user based on the measured similarity ratios; and predicting a preference rating of the first user with respect to an unused content item based on a preference rating of an other user included in the recommender list with respect to the unused content item. Accordingly, the similarity ratio between the users can be accurately measured so that reliability of a preference rating prediction system can be increased.

摘要翻译： 一种参考与其他用户相似的活动用户的内容偏好来预测活动用户的内容偏好的方法和装置，所述方法包括：使用重叠的使用比率来测量活动用户和其他用户的相似比 在活动用户和相应的其他用户之间通常使用的内容项目; 基于测量的相似性比例生成活动用户的推荐者列表; 以及基于关于所述未使用的内容项目的所述推荐者列表中包括的其他用户的偏好评级来预测所述第一用户相对于未使用内容项的偏好评级。 因此，可以精确地测量用户之间的相似度，从而可以提高偏好评级预测系统的可靠性。

公开(公告)号：US20090047619A1

公开(公告)日：2009-02-19

申请号：US11883705

申请日：2006-02-02

申请人： Suk-song Oh ,  Hae-joong Kim ,  Chang-jin Ji ,  Do-yeon Kim ,  Young-muk Choi ,  Sung-joon Choi ,  Sung-min Ha

发明人： Suk-song Oh ,  Hae-joong Kim ,  Chang-jin Ji ,  Do-yeon Kim ,  Young-muk Choi ,  Sung-joon Choi ,  Sung-min Ha

IPC分类号： A61C3/08

CPC分类号： A61C5/50 ,  A61C1/0015 ,  A61C5/55

摘要： A cordless complex root canal plugger for dental clinics is disclosed. The root canal plugger includes a battery charger; a pen-type vertical spreader having a rechargeable battery unit and a control unit therein; and a gun-type injection device having both a rechargeable battery unit and a control unit therein. The battery charger, the pen-type vertical spreader and the gun-type injection device are provided as a group of complementary products. The cordless complex root canal plugger allows an endodontist to move freely in a dental clinic while executing a root canal plugging procedure using the cordless complex root canal plugger during nerve treatment. Thus, the endodontist can more easily, rapidly and precisely pack a root canal with a filler material and, therefore, the cordless complex root canal plugger induces en-dodontists to buy it.

摘要翻译： 公开了一种用于牙科诊所的无绳复合根管插管器。 根管插管包括电池充电器; 一种具有可充电电池单元和其中的控制单元的笔式立式吊具; 以及其中具有可再充电电池单元和控制单元的枪式注射装置。 电池充电器，笔式立式撒布机和枪式注射装置作为一组互补产品提供。 无绳复合根管插塞允许牙髓牙科医生在牙科诊所中自由移动，同时在神经治疗期间使用无绳复合根管塞子执行根管封堵程序。 因此，牙髓病学家可以更容易，快速和精确地用填充材料包扎根管，因此，无绳复合根管插管器可以诱导痴呆症患者购买它。