Relevance assessment for location information received from multiple sources
First Claim
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1. A system for assessing relevance location information received from multiple sources, said system comprising:
- a. at least one database;
b. a location receiver receiving location related data and storing said location related data in said database, each of said location related data associated with a precision value;
c. a client association manager associating one or more tracking clients with one or more users, said client association manager calculating a stationary confidence and a moving confidence for combinations of tracking clients and users, said calculated values stored in said database, and d. a location query engine receiving a request for identifying a location of a client, said location query engine extracting and sorting current location data associated with said client, and said location query engine identifying and resolving temporal or spatial conflicts in said sorted location data based on at least said calculated confidence values.
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Abstract
Rather than attempting to compute an average position where the mobile object might reside, location reports are ranked according to their relevance using a combination of spatial, temporal, and associative factors. This is particularly beneficial when the number of location information sources is large due to many independent trackable mobile objects (mobile phone, car, credit cards, identity cards, etc.) one might be associated with.
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Citations
24 Claims
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1. A system for assessing relevance location information received from multiple sources, said system comprising:
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a. at least one database;
b. a location receiver receiving location related data and storing said location related data in said database, each of said location related data associated with a precision value;
c. a client association manager associating one or more tracking clients with one or more users, said client association manager calculating a stationary confidence and a moving confidence for combinations of tracking clients and users, said calculated values stored in said database, and d. a location query engine receiving a request for identifying a location of a client, said location query engine extracting and sorting current location data associated with said client, and said location query engine identifying and resolving temporal or spatial conflicts in said sorted location data based on at least said calculated confidence values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for combining temporal and associative factors to form a single relevance assessment, said method comprising the steps of:
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a. receiving a request for location record associated with a client;
b. extracting one or more location records related to said client, each of said location record having an error value associated with it;
c. sorting said extracted location records and identifying spatial and temporal conflicts in said extracted location reports;
d. computing associative confidence values with each of said conflicting location reports, and e. resolving spatial conflicts via picking a location record with a smallest error, and resolving temporal conflicts via picking location record with most recent timestamp, and resolving both temporal and spatial conflicts via picking location record with greater computed associative confidence value. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. An article of manufacture comprising a computer usable medium having computer readable program code embodied therein which combines temporal and associative factors to form a single relevance assessment, said medium further comprising:
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a. computer readable program code receiving a request for location record associated with a client;
b. computer readable program code extracting one or more location records related to said client, each of said location record having an error value associated with it;
c. computer readable program code sorting said extracted location records and identifying spatial and temporal conflicts in said extracted location reports;
d. computer readable program code computing associative confidence values with each of said conflicting location reports, and e. computer readable program code resolving spatial conflicts via picking location record with least error, and computer readable program code resolving temporal conflicts via picking location record with most recent timestamp, or computer readable program code resolving both temporal and spatial conflicts via picking location record with greater computed associative confidence value.
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22. A system for assessing relevance location information received from multiple sources, said system comprising:
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a. a location database;
b. a location receiver receiving location related data and storing said location related data in said location database, each of said location related data associated with a precision value;
c. a client association database;
d. a client association manager associating one or more tracking clients with one or more clients, said client association manager calculating a stationary confidence and a moving confidence for combinations of said tracking clients and said clients, said identified values stored in said client association database, and e. a location query engine receiving a request for identifying a location of a client, said location query engine accessing, extracting, and sorting current location data associated with said client from said location database, and said location query engine resolving temporal or spatial conflicts in said sorted location data via said identified stationary or moving confidence. - View Dependent Claims (23, 24)
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Specification