Abstract: Disclosed are systems, methods, and non-transitory computer-readable storage media for identifying and assigning advertisements to impression slots based on each advertisement's impression set. An advertisement has one or more attributes, or impressions, that characterize it, which are collectively known as an impression set. Media content providers may take into account an advertisement's impression set when linking advertisements to impression slots. By iterating through a direct access table that contains impression slots and pointers, an advertisement inventory server can link, re-link, and award impression slots to the advertisement that has the highest value. The resulting direct access table shows the value-optimized impression slot assignments as well as the unsold inventory of impression slots in real-time. Furthermore, if a query is submitted, the advertisement inventory server can include the query results in the direct access table.

Abstract: A Search Engine utilizing a method and system for efficient storage and retrieval of data. The system comprises a record file, an index file, a duplicate segment file and access to a network of computers. The index files contains locations of data items, pointers to other index files, or an empty designation. The index files are arrays that contain locations corresponding to a predetermined range of characters with which the data items may be formed. Data items are stored according to the character strings of each data item. The first portion of a data object is indexed according to the indexing method of the present invention while a second portion of the data object is indexed according to another known database technology, such as B-tree.