An information delivery device, comprising one or more processors and a memory for storing program instructions, wherein the one or more processors is configured to execute the program instructions to perform the following operations:
- determining a candidate advertisement list in response to a page request sent by a user terminal, wherein the candidate information list comprises a plurality of advertisements, the plurality of advertisements belonging to multiple advertisement types;
- generating initial ranks of the advertisements in the candidate advertisement list by sorting the plurality of advertisements in the candidate advertisement list in accordance with matching the user sending the page request;
- determining a connection type of the user terminal that sends the page request according to transmission of the page request, the connection type being either a WiFi connection or a non-WiFi connection;
- determining a number of advertisements of a designated type in the candidate advertisement list, the advertisements of the designated type being a supported type of advertisements placed by a same producer or a supported type of advertisements that promote an app;
- obtaining a preset threshold number configured to indicate a number of the advertisements of the designated type needs to reach for being prioritized;
- comparing the number of advertisements of the designated type with the preset threshold number;
- upon determining that the connection type is WiFi connection and the number of advertisements of the designated type is greater than the preset threshold number, selecting the designated delivery advertisement from the plurality of advertisements based on adjusted ranks, comprising:
- acquiring a current average rank of the advertisements of the supported type in the candidate advertisement list based on the ranks of the pieces of advertisements in the candidate advertisement list;
- calculating a selection probability of the advertisements of the supported type based on the current average rank of the advertisements of the supported type and the historical support average rank corresponding to the supported type;
- calculating a current support satisfaction degree based on a number of advertisements of the supported type which are already selected to be supported, a total number of requests sent by the user, and a preset support ratio;
- calculating a support probability for prioritizing the advertisements of the supported type based on the selection probability of the advertisements of the supported type and the current support satisfaction degree;
- adjusting a rank of each advertisement of the supported type in the candidate advertisement list according to the support probability to obtain the adjust ranks;
- and
- selecting the designated delivery advertisement from the candidate advertisement list based on the adjusted ranks;
- upon determining that the number of advertisements of the designated type is not greater than the preset threshold number, selecting the designated delivery advertisement from the plurality of advertisements based on the initial ranks;
- upon determining that the connection type is non-WiFi connection, selecting the designated delivery advertisement from the plurality of advertisements based on the initial ranks;
- and
- sending a response of the page request to the user terminal, wherein the response includes the designated delivery advertisement and causes the user terminal to display the designated delivery advertisement.