Telefonaktiebolaget Lm Ericsson (Publ)

Jawad Mohamed Zahoor

Subramanian Shivashankar

Manoj Prasanna Kumar

Simon Moritz

Brindha Padmanaabhan

Erik Mellegard

Erik MELLEGÅRD

Query handling devices in a federated database system and related methods and computer program products for handling queries in the federated database system are disclosed. The query handling device receives database queries directed towards a group of databases from several applications and filters the queries based on common query rules such as common query syntax, investigates the queries that have passed the filtering, and sends the investigated queries to the databases. The investigation includes prioritising between at least some queries according to a query prioritisation scheme. The prioritised queries are sent according to the query prioritisation scheme.

Federated database system

A query handling arrangement is disclosed for a federated database system. The database system includes data storing applications configured to store data in corresponding databases. The query handling arrangement includes a query handling device that receives a database query from a query generating application concerning the obtaining of data from the databases, obtains usage profiles regarding allowed use of the data in the databases provided by a usage profile announcing device, investigates the usage profiles, obtains data from the databases according to the obtained usage profiles, and responds to the query with the obtained data.

Exposing data to query generating applications using usage profiles

Embodiments of the invention disclose a method, identifier and a computer program product for identifying influential users among a group of users associated with a communication network. The disclosed method includes selecting two or more ranking models from a plurality of ranking models such that each ranking model provides scores to the users in the group based on a usage data of the users, calculating a weighing factor for each of the selected ranking models, generating an aggregate score for each user using the weighing factor and the score provided by each one of the selected model such that based on the aggregate score, the influential users among the group of users are identified.

System or apparatus for finding influential users

Computers, a user equipment, a computer system, computer program products, and a method for a computer system are disclosed. In some embodiments, the method comprises the steps of: receiving user IDs, cell IDs and time stamps associated with the cell IDs and the user IDs; requesting and receiving, from a cell ID database, geographical coordinates corresponding to the cell IDs; finding stations and times for each user ID based on, at least in part, the geographical coordinates and time stamps associated with each user ID; exchanging the stations with a place for each one of the stations; generating at least one OD sub-matrix associated with each user ID based on, at least in part, places and times of arrival and departure associated with these places; and merging the OD matrices into an OD matrix.

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Chennai, India

Jawad Mohamed Zahoor