Abstract: A technique includes determining social media expressed sentiment, including processing data indicative of a plurality of social media messages to decompose each of the social media messages into a plurality of attributes; for each social media message, identifying attributes of the plurality of attributes, which are associated with user selected attribute categories and are part of the message, and for each identified attribute, assigning a sentiment to the attribute and updating statistics for the selected attribute categories based on the assigned sentiment. The technique includes visualizing the social media expressed sentiment, including displaying at least some of the statistics.

Abstract: A method and device may accept a first database query plan including a plurality of rows and a second database query plan including a plurality of rows, compare each row in the first database query plan with a corresponding row in the second database query plan, and based on each comparison, calculate a difference between the compared rows. Each difference may be recorded in an output file.

Abstract: A method of visually representing how a sentiment score is computed comprises, with a sentiment scoring device, determining a number of sentiment scores for each of a number of attributes within a forum, writing a visualization file in a database based on metadata representing the sentiment scores, and outputting, to an output device, a representation of how the sentiment score was computed based on the visualization file. A system for displaying to a user how a sentiment score is computed comprises a sentiment scoring device, a forum source communicatively coupled to the sentiment scoring device, and an output device communicatively coupled to the sentiment scoring device, in which the sentiment scoring device obtains text from the forum source, determines sentiment scores for a number of attributes within the text, and outputs, to the output device, a representation of how the sentiment score was computed.

Abstract: First data indicative of a first histogram and second data indicative of a second histogram are received and processed to determine quantitative differences between the first and second histograms. Third data is generated, which is indicative of the result of the quantitative differences.

Abstract: A method and device may accept a first database query plan including a plurality of rows and a second database query plan including a plurality of rows, compare each row in the first database query plan with a corresponding row in the second database query plan, and based on each comparison, calculate a difference between the compared rows. Each difference may be recorded in an output file.