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Intelligent information disseminationIntelligent information dissemination description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20080155015, Intelligent information dissemination. Brief Patent Description - Full Patent Description - Patent Application Claims
FIELD OF THE INVENTION
The present invention relates to distribution of data in computer systems. In particular it relates to information dissemination in high performance trading systems. BACKGROUND OF THE INVENTIONToday it is very common that information is sent over computer networks. The amount of information being sent is rapidly increasing due to the advances in technology, making it possible to send and handle more information at higher speed compared to before. Furthermore, new applications demands a higher amount of information compared to before. Even further, the importance of information has open up a new field of business wherein information is sold. An example of computer systems wherein information dissemination is one of the most essential parts are electronic trading systems. Electronic trading of securities, derivatives, commodities and other financial instruments results in large amount of information which has to be distributed to users that needs the information for making trade decisions, statistical calculations and other assessments. Furthermore the users connected to such a centralised trading system want to have the information as soon as possible. In these cases it may not be enough to only boost the performance in the central system by for example updating the hardware, in order to get rid of a bottleneck or other latency problem in the system. Usually these bottlenecks end up at the user side anyway, since the users may have limited possibilities to update their connection to the central system. Thus, this type of central system has to generate and distribute a lot of data to many different users not only on continous basis but also at specific times and occations during a trading day, and it has to be done in an efficient way. An example of a system for providing electronic information is described in US 2005/0273421. This document describes a different system wherein the trading information and mulitiple types of electronic information is sent in the same data stream. Providing electronic trading information and electronic information on the same data stream significantly increases the computations required on a target device and by servers being used by electronic trading providers to separate the information. The system disclosed in us 2005/0273421 solves this problem by splitting the first data stream into plural second data streams that can be selectively requested, displayed and used by a user. Each of the plural second data streams includes one or more of the plural different types of electronic trading information from the first data stream. Thereby allowing an individual target device to selectively request, receive and use the one or more of the plural types of electronic trading information in the second data stream faster than using the same electronic trading information from the first data stream. However, this type of filtering is often much to rough since a user/client is most likely interested in other data streams too. Thus the above described system has drawbacks, especially in environments having limited bandwidth connection, since it splitts the information based on the type of electronic information. Hence the above system is useless in networks where the data rates of the connections for users is limited and varies between different users. Some trading system has other functionalities for distributing information. However, the problem for these solutions is that they require the system to generate and send duplicated information. These solutions may for example generate one message flow for a user A (with a great connection) that contains the entire depth and one message flow for a user B (with a poor connection) that contains a limited picture of the market (top X levels). The two messages will therefore contain duplicated information for the top X levels. This will result in extra load on both the central systems performance and the traffic on the central and peripheral network. Another problem with electronic information systems is that usually there is a central processor/s that aggregates the information and distributes it. Since the processor has to use time on aggregating and spreading duplicated information there will be less time for other tasks such as receiving information and thus bottlenecks may occur in other parts of the system. Another problem with the prior art systems is that they do not consider counter performances provided by customers when distributing data. Thus some customers may expericence an unfair treatment. BRIEF DESCRIPTION OF THE INVENTIONThus it is an object of the present invention to provide a solution for disseminating data in a more efficient way. It is another object of the present invention to provide a solution for sending out data to users having different data rate of their data connections. It is another object of the present invention to provide a solution for sending out data in a bandwidth efficient way. It is another object of the present invention to provide a solution for sending out data without the need of duplicating the data. It is another object of the present invention to consider customer counter performances when sending out data. According to a first aspect of the invention the above and other objects are achieved by a computer system for sending data sets to a plurality of clients via a network, the computer system comprising:
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