Abstract: Judgment systems and methods. The system includes a signal gathering module, an attribute retrieval module, a rule retrieval module, and a rule execution module. The signal gathering module receives identification of at least a first card and a second card, and defines statuses thereof. The attribute retrieval module retrieves attributes corresponding to the first and second cards according to the identification thereof. The rule retrieval module retrieves a rule according to the identification and statuses of the first and second cards. The rule execution module performs the rule on the first and second cards to change the attributes thereof.

Abstract: Guide route generation methods and systems. A target object is first selected by a visitor. The similarity or interest of candidate objects corresponding to the target object is calculated. Recommended objects are selected from the candidate objects according to the corresponding similarity or interest. A guide route is generated to link the recommended objects. The interest of the visitor is dynamically determined. If the interest is changed, the interest of the candidate objects is re-calculated, and recommended objects are re-selected from the candidate objects to generate a new guide route.

Abstract: Judgment systems and methods. The system includes a signal gathering module, an attribute retrieval module, a rule retrieval module, and a rule execution module. The signal gathering module receives identification of at least a first card and a second card, and defines statuses thereof. The attribute retrieval module retrieves attributes corresponding to the first and second cards according to the identification thereof. The rule retrieval module retrieves a rule according to the identification and statuses of the first and second cards. The rule execution module performs the rule on the first and second cards to change the attributes thereof.

Abstract: A system for peer-to-peer (p2p) communication. A instant message is received from a first daemon corresponding to a first instant messaging application type originating with a first client, and transmits the instant message to a second daemon corresponding to a second instant messaging application type originating with a second client. A third daemon receives the instant message using communication protocol corresponding to the first instant messaging application type. A message switching unit acquires the second instant messaging application type corresponding to the third daemon identity, and acquires a second daemon identity. A fourth daemon transmits the instant message to the second daemon corresponding to the second daemon identity using communication protocol corresponding to the second instant messaging application type.