International Business Machines Corporation

Lalitha Krishnamoorthy

Jeremy R Fox

Sheng Huang

John Handy Bosma

Yaoliang Chen

Xiaomin Xu

Jason Chester Garcowski

Xiaoyan Chen

Zhong Tao

Sri Sai Anupama Pasumarthy

A system, computer program product, and method for computing a correlation matrix with respect to massive of time-series is described where a threshold &#x3b5; is specified. The correlations greater than &#x3b5; do not need to be computed. A distance tree is constructed and used. The distance tree organizes the time-series by their correlation estimations. The correlation similarity is computed with MapReduce function by taking advantage of the distance tree. In an efficient MapReduce manner, there is a small I/O waste for overlapped partition. The load is balanced for uneven data distribution and there is early pruning for unnecessary computation. There is no reliance on dimensional reduction and no reliance on coordinates.

Massive time series correlation similarity computation

A computer system analyzes user sentiment to dynamically modify a communication session. One or more user interactions are captured during a communication session, wherein a machine learning model is updated based on the captured user interactions. A likelihood score of a user terminating the communication session before performing one or more desired actions is calculated. In response to determining that the likelihood score is above a threshold value, one or more queries are presented, during the communication session, to the user, wherein the one or more queries are selected using the machine learning model. Received user feedback is analyzed to determine a user sentiment. The communication session is dynamically modified based on to the user feedback and the user sentiment. Embodiments of the present invention further include a method and program product for analyzing user sentiment to dynamically modify a communication session in substantially the same manner described above.

Method, medium, and system for analyzing user sentiment to dynamically modify communication sessions

Various embodiments of a method, apparatus and article of manufacture that identify a boundary of a field of a text-based screen for a test tool are provided. These embodiments allow single test tool to test software applications that have a text-based screen and software applications that have a graphical user interface with Java objects.

Method, system and article of manufacture for testing a software application having a text-based screen with a test tool for a software application having a graphical user interface which uses objects

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Beaverton, OR, United States of America

Lalitha Krishnamoorthy