摘要:
One embodiment of the present invention provides a system for navigating through information associated with physical objects or locations. During operation, the system detects a multi-resolution visual code placed on or in the vicinity of a physical object or location. The system then determines a level of resolution for the detected code, and decodes the code at the determined level of resolution to obtain the information. Subsequently, the system presents the information to a user, thereby allowing the user to navigate through information associated with the physical object or location.
摘要:
A method for specifying utility in an information delivery system having data sources and receiving nodes includes specifying utility for a set of possible information delivery patterns of data samples, where the specification of the utility depends on characteristics of delivery patterns observed by a receiving node, if any, located at a specified location.
摘要:
An information dissemination system has at least one node acting as a data source, at least one node acting as a data recipient, and an information layer residing on all of the nodes in a system. The information layer receives a generic utility function from an application on the node acting as a data source wanting to propagate information, uses the generic utility function at the node acting as data source to produce a microutility and uses the microutility on non-data source nodes of the system to propagate the information through the system to any recipients based upon the microutility.
摘要:
A method of managing traffic in an ad-hoc network includes receiving, at a local node, a received synopsis of data sample updates in a neighbor storage of a neighboring node, the synopsis being based at least in part on dynamic priorities associated with the data samples. The received synopsis is then compared with data sample updates in a local storage of the local node and the local node determines which data samples will be transmitted.
摘要:
A method for specifying utility in an information delivery system having data sources and receiving nodes includes specifying utility for a set of possible information delivery patterns of data samples, where the specification of the utility depends on characteristics of delivery patterns observed by a receiving node, if any, located at a specified location.
摘要:
A method of disseminating information in system having data sources and data recipients includes receiving a generic utility function at a data source for information to be delivered to a data recipient based upon an application for which the information is to be used. Data related to an environment in which the information is to be propagated is used to modify the generic utility function.
摘要:
A method of managing traffic in an ad hoc network includes measuring local data traffic levels on at least one network resource. Criteria are established for different transmission media. A microutility of a data sample is evaluated and the data sample is transmitted through one or more media, the selection of the media being based upon evaluation of the microutility against the criteria.
摘要:
A method of managing traffic in an ad hoc network includes measuring local data traffic levels on at least one network resource. Criteria are established for different transmission media. A microutility of a data sample is evaluated and the data sample is transmitted through one or more media, the selection of the media being based upon evaluation of the microutility against the criteria.
摘要:
A method of disseminating information in system having data sources and data recipients includes receiving a generic utility function at a data source for information to be delivered to a data recipient based upon an application for which the information is to be used. Data related to an environment in which the information is to be propagated is used to modify the generic utility function.
摘要:
A method of managing traffic in an ad hoc network determines local data traffic levels at a node, and uses the local data traffic levels to define a criteria. The criteria is applied to a microutility associated with the data sample to determine if the data sample should be propagated, temporarily delayed or dropped.