A method and system for identifying social trends are provided. The method includes collecting multimedia content from a plurality of data sources; gathering environmental variables related to the collected multimedia content; extracting visual elements from the collected multimedia content; generating at least one signature for each extracted visual element; generating at least one cluster of visual elements by clustering at least similar signatures generated for the extracted visual elements; correlating environmental variables related to visual elements in the at least one cluster; determining at least one social trend by associating the correlated environmental variables with the at least one cluster.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A method for identifying social trends, comprising: collecting multimedia content from a plurality of data sources; gathering environmental variables related to the collected multimedia content; extracting visual elements from the collected multimedia content; generating at least one signature for each extracted visual element; generating at least one cluster of visual elements by clustering at least similar signatures generated for the extracted visual elements; correlating environmental variables related to visual elements in the at least one cluster; determining at least one social trend by associating the correlated environmental variables with the at least one cluster. 2. The method of claim 1, wherein, a data source is one of: a web server, an application server, a data repository. 3. The method of claim 1, wherein the visual element is at least one of: an image, a graphic, a video stream, a video clip, a video frame, and a photograph. 4. The method of claim 1, wherein each of the environmental variables is any one of: a location variable, a time variable, a weather variable, a speed variable, and a motion variable. 5. The method of claim 1, wherein correlating the environmental variables further comprises: checking if the correlated environmental variables meet a predefined correlation threshold. 6. The method of claim 1, wherein the at least one cluster is a concept, wherein the concept is a collection of signatures representing visual elements and metadata describing the concept. 7. The method of claim 1, further comprising: evaluating the determined social trend over time. 8. A non-transitory computer readable medium having stored thereon instructions for causing one or more processing units to execute the method according to claim 1. 9. A system for identifying social trends, comprising: a processing unit; and a memory coupled to the processing unit, the memory contains instructions that when executed by the processing unit configures the system to: collect multimedia content from a plurality of data sources; gather environmental variables related to the collected multimedia content; extract visual elements from the collected multimedia content; generate at least one signature for each extracted visual element; generate at least one cluster of visual elements by clustering at least similar signatures generated for the extracted visual elements; correlate environmental variables related to visual elements in the at least one cluster; determine at least one social trend by associating the correlated environmental variables with the at least one cluster. 10. The system of claim 1, wherein, a data source is one of: a web server, an application server, a data repository. 11. The system of claim 1, wherein the visual element is at least one of: an image, a graphic, a video stream, a video clip, a video frame, and a photograph. 12. The system of claim 1, wherein each of the environmental variables is any one of: a location variable, a time variable, a weather variable, a speed variable, and a motion variable. 13. The system of claim 1, further configured to: check if the correlated environmental variables meet a predefined correlation threshold. 14. The system of claim 1, wherein the at least one cluster is a concept, wherein the concept is a collection of signatures representing visual elements and metadata describing the concept. 15. The system of claim 1, further configured to: evaluate the determined social trend over time.