Po Cheung Yue

6457143, Sep 24, 2002

Sep 30, 1999

09/410244

Po Cheung Yue - Ossining NY

International Business Machines Corporation - Armonk NY

G06F 1100

714 43, 709223

A system and method for providing automated bottleneck identification in networks and networked application environments by processing using end-to-end quality of service measurements in combination with knowledge of internal resource dependency information generated by a network administrator. In one aspect, a method for identifying bottleneck resources in a network having a plurality of resources comprises the steps of: specifying a plurality of probe transactions in the network; generating resource dependency information representing dependent resources for each of the probe transactions; executing the probe transactions; measuring end-to-end quality of service data resulting from the executing of the probe transactions; and processing the resource dependency information and measured end-to-end quality of service data to identify bottleneck resources in the network. The system and method eliminate the need for obtaining and processing detailed measurements and/or estimates of parameters or data at the per resource level to identify bottlenecks.

51290430, Jul 7, 1992

Aug 14, 1989

7/393526

Po C. Yue - Ossining NY

International Business Machines Corporation - Armonk NY

G06F 1516

395 51

A monitoring system monitors an expert system application while such application executes for a period of time. The monitoring system records selected performance data relative to the operating efficiency of the expert system, and writes such data into a database for later use. After a test run of the expert system is completed, the monitoring system can select a small number of candidate rules for revision by a user, and display data to the user which allows the user to determine what types of changes need to be made to the candidate rules and to the working memory data organization.

6330564, Dec 11, 2001

Feb 10, 1999

9/247239

Joseph L. Hellerstein - Ossining NY
Po Chang Yue - Ossining NY

International Business Machines Corporation - Armonk NY

G06F 1700
G06F 700

707101

A system and method are described for automating navigations in systems with measurement data that are structured as a multidimensional database (MDDB). The navigation includes an Automated Navigation Engine that uses external representations of a dimension selection function and a cube selection function to guide MDDB navigations. The method consists of the steps: (1) select the MDDB dimension that has the largest dimension selection score; (2) if this score is too small, terminate the method; (3) otherwise, select the cube with the largest cube selection score. These steps are performed repeatedly until (2) applies. Navigations can be performed for data mining, problem isolation, trending analysis, etc.