Abstract: A query processing method including decomposing an SQL into logical plans based on data source feature information, to obtain a logical plan set, where the data source feature information is stored in an internal storage space of the query engine; generating physical plans for the logical plan set based on the data source feature information, to obtain a physical plan set; determining query costs of the physical plan set based on the data source feature information, to obtain a physical plan with a highest priority; and executing the physical plan with the highest priority, to obtain a query result queried by a user.

Abstract: A query processing method including decomposing an SQL into logical plans based on data source feature information, to obtain a logical plan set, where the data source feature information is stored in an internal storage space of the query engine; generating physical plans for the logical plan set based on the data source feature information, to obtain a physical plan set; determining query costs of the physical plan set based on the data source feature information, to obtain a physical plan with a highest priority; and executing the physical plan with the highest priority, to obtain a query result queried by a user. The embodiments of this application further disclose a data source registration method and a query engine.

Abstract: A query processing method includes decomposing an SQL into logical plans based on data source feature information, to obtain a logical plan set, where the data source feature information is stored in an internal data source feature library of a query engine, and the internal data source feature library is stored in cache space of the query engine; generating physical plans for the logical plan set based on the data source feature information, to obtain a physical plan set; determining query costs of the physical plan set based on the data source feature information, to obtain a physical plan with a highest priority; and executing the physical plan with the highest priority, to obtain a query result queried by a user. A data source registration method and a query engine is further disclosed.

Abstract: a query processing method including decomposing an SQL into logical plans based on data source feature information, to obtain a logical plan set, where the data source feature information is stored in an internal data source feature library of a query engine, and the internal data source feature library is stored in cache space of the query engine; generating physical plans for the logical plan set based on the data source feature information, to obtain a physical plan set; determining query costs of the physical plan set based on the data source feature information, to obtain a physical plan with a highest priority; and executing the physical plan with the highest priority, to obtain a query result queried by a user. The embodiments of this application further disclose a data source registration method and a query engine.

Abstract: An approach is provided for providing mechanisms to control unattended notifications at a device. The approach includes determining that at least one notification presented at a device is an unattended notification. The approach also includes causing, at least in part, a presentation of one or more mechanisms for controlling the unattended notification at the device, one or more other devices, or a combination thereof.

Abstract: Methods and apparatuses for located-based content access control have been disclosed. A method may comprise: receiving, at a mobile device, from a short distance communication node, an identifier of the node; generating a device key for the mobile device based on the identifier of the node and an identifier of the mobile device; sending to the node the device key and the identifier of the mobile device, at least based on which the mobile device may be authenticated; and receiving, at the mobile device, from the node, one or more content keys, either encrypted or unencrypted, for decrypting content that has been or is to be saved in the mobile device.

Abstract: An approach is provided for providing user-corrected search results. The explanation platform processes and/or facilitates a processing of one or more search results to calculate a ranking of the one or more search results. Next, the explanation platform determines one or more parameters related to calculating the ranking, one or more values of the one or more parameters, or a combination thereof. Then, the explanation platform causes, at least in part, a presentation of one or more representations of at least one of the one or more parameters as one or more explanations for the ranking.

Abstract: An approach is provided for determining context-based groups based on context information. An input from a device specifying one or more criteria to determine a context-based group from among a plurality of other devices is received. The context information associated with the plurality of other devices is determined. The context-based group is determined based, at least in part, on the context information and the criteria.

Abstract: Methods and apparatuses for located-based content access control have been disclosed. A method may comprise: receiving, at a mobile device, from a short distance communication node, an identifier of the node; generating a device key for the mobile device based on the identifier of the node and an identifier of the mobile device; sending to the node the device key and the identifier of the mobile device, at least based on which the mobile device may be authenticated; and receiving, at the mobile device, from the node, one or more content keys, either encrypted or unencrypted, for decrypting content that has been or is to be saved in the mobile device.

Abstract: An approach is provided for providing mechanisms to control unattended notifications at a device. The approach includes determining that at least one notification presented at a device is an unattended notification. The approach also includes causing, at least in part, a presentation of one or more mechanisms for controlling the unattended notification at the device, one or more other devices, or a combination thereof.

Abstract: An approach is provided for providing device ringtone coordination. The approach involves determining a request for a playback of at least one ringtone at at least one device, wherein the playback is for a notification of at least one event. The approach also involves causing, at least in part, a coordination of the playback of the at least one ringtone among the at least one device, one or more other devices, or a combination thereof based, at least in part, on a determination of whether the one or more other devices are to be notified of the at least one event.

Abstract: An approach is provided for providing crowd-sourced location geocoding. A geocoding platform determines one or more location strings associated with at least one event, wherein the at least one event is associated with one or more users. The geocoding platform further causes, at least in part, a geocoding of the one or more location strings to determine location information associated with the at least one event based, at least in part, on one or more inputs, contextual information, a combination thereof associated with the one or more users.

Abstract: An approach is provided for sending a neighborhood-based ringtone advertisement. The approach involves receiving a ringtone request from a mobile communication device, wherein contextual information of the mobile communication device is determined and processed. The approach also involves determining the neighboring mobile communication devices, and then determining and processing the contextual information associated with the neighboring mobile communication devices. The approach further involves determining a ringtone that has the best influence on the users of the request sending mobile communication device, and the users of the neighboring mobile communication devices. Then, a neighborhood-based ringtone advertisement is selected.

Abstract: An approach is provided for providing address geo-coding that enhances query result quality while increasing the flexibility of textual query strings. A geo-coding platform determines a request for geo-coding information, wherein the request is from a client to at least one geo-coding knowledge base and specifies at least one textual input. The geo-coding platform further causes, at least in part, a generation of at least one geo-coding request based, at least in part, on the at least one textual input. The geo-coding platform also determines to transmit the at least one geo-coding request to the at least one geo-coding knowledge base, one or more other geo-coding knowledge bases, or a combination thereof.

Abstract: An approach is provided for providing user-corrected search results. The explanation platform processes and/or facilitates a processing of one or more search results to calculate a ranking of the one or more search results. Next, the explanation platform determines one or more parameters related to calculating the ranking, one or more values of the one or more parameters, or a combination thereof. Then, the explanation platform causes, at least in part, a presentation of one or more representations of at least one of the one or more parameters as one or more explanations for the ranking.

Abstract: An approach is provided for organizing a group event. An input from a device specifying a group event is received. A location associated with the group event is determined. One or more other devices within a proximity of the location are determined. A notification of the group event to the one or more other devices is generated.

Abstract: An approach is provided for determining context-based groups based on context information. An input from a device specifying one or more criteria to determine a context-based group from among a plurality of other devices is received. The context information associated with the plurality of other devices is determined. The context-based group is determined based, at least in part, on the context information and the criteria.

Abstract: Various embodiments include a method including receiving media data on an apparatus, and receiving one or more context attributes related to the apparatus or accessed by the apparatus. The method further includes determining whether the one or more context attributes relate to the media data, and causing, at least in part, display of the media data with the one or more context attributes that are determined to relate to the media data. Also, a method is provided that includes receiving media data on an apparatus, parsing the media data into one or more structured elements, determining one or more informational links that relate to the one or more structured elements of the media data, and causing, at least in part, display of the media data with the one or more informational links that are determined to relate to the one or more structured elements.