Abstract: A database system includes an original data source storing pieces of original data and a cache source storing pieces of cached data, each associated with an accuracy value. A method of processing queries in the system includes: for each randomly selected client query, retrieving a first piece of cached data matching the query, and retrieving a first piece of original data matching the query; for non-selected client queries, retrieving a second piece of cached data matching the query; evaluating the accuracy value of the second piece of cached data; if the accuracy value is below a given threshold, retrieving a second piece of original data matching the query, and updating the second piece of cached data by the second piece of original data; and adapting a probabilistic model based on the first piece of cached data and the first piece of original data using a machine learning algorithm.

Abstract: A database system includes an original data source storing pieces of original data and a cache source storing pieces of cached data, each associated with an accuracy value. A method of processing queries in the system includes: for each randomly selected client query, retrieving a first piece of cached data matching the query, and retrieving a first piece of original data matching the query; for non-selected client queries, retrieving a second piece of cached data matching the query; evaluating the accuracy value of the second piece of cached data; if the accuracy value is below a given threshold, retrieving a second piece of original data matching the query, and updating the second piece of cached data by the second piece of original data; and adapting a probabilistic model based on the first piece of cached data and the first piece of original data using a machine learning algorithm.

Abstract: A computer-implemented system of passenger oriented seating allocation proposes seats to passengers based on both a passenger and an airline's ranking of seating criteria. The system may assign a numerical weight to each seating criteria based on the passenger and the airline's ranking of the seating criteria, and a seating generation module may generate a seat based on these numerical weights. The system may also generate affinity links between passengers, which may be utilized to integrate personal passenger-oriented and professional information of a passenger to be utilized during the seating allocation process to take into account passengers' preferences in being seated next to people with whom they may be interested.