A computer-implemented system for real time topic detection in a social media message includes a knowledge base of keywords used to ingest the social media message and a partial parser deriving a syntax-semantic parse tree. The system also includes a topic calculator compositionally deriving the topic of the social media message by computing a topic value for given entities in the event described by the social media message. The topic value is derived from a first set of rules assigning Restrictor R-value to prominent R-expressions compositionally in the syntax-semantic parse tree and a second set of rules assigning a numeric Strength S-value to the R-expressions according to whether or not they are part of anaphoric chains in the social media message, and whether or not the R-expressions include name entities that are part of the knowledge base of keywords.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A computer-implemented system for real time topic detection in a social media message, wherein information structure of the social media message includes a topic and a comment, and wherein the topic is an R-expression (Referential expression) that restricts the information structure of an event described by the social media message, comprising: a knowledge base of keywords used to ingest the social media message; a partial parser deriving a syntax-semantic parse tree; a topic calculator compositionally deriving the topic of the social media message by computing a topic value for given entities in the event described by the social media message, wherein the topic value is derived from a first set of rules assigning a Restrictor R-value to prominent R-expressions compositionally in the syntax-semantic parse tree and a second set of rules assigning a numeric Strength S-value to the R-expressions according to whether or not they are part of anaphoric chains in the social media message, and whether or not the R-expressions include name entities that are part of the knowledge base of keywords. 2. The computer-implemented system for real time topic detection in the social media message according to claim 1, further including an inference engine reducing uncertainty in results of the topic calculator. 3. The computer-implemented system for real time topic detection in the social media message according to claim 2, wherein the inference engine includes a data structure and a set of inference rules. 4. The computer-implemented system for real time topic detection in the social media message according to claim 1, wherein the topic value of the social media message is associated with a strength value 1 to 3, where 1 is the lowest strength and 3 is the highest strength. 5. The computer-implemented system for real time topic detection in the social media message according to claim 4, wherein the strength value is the sum of the numeric Strength S-value of the second set of rates.