Chun Feng Zhang

7562090, Jul 14, 2009

Dec 19, 2002

10/324362

Guy Maring Lohman - San Jose CA, US
Nimrod Megiddo - Palo Alto CA, US
Jun Rao - San Jose CA, US
Chun Zhang - San Jose CA, US

International Business Machines Corporation - Armonk NY

G06F 7/00
G06F 12/00

707102, 707205

A system for automating data partitioning in a parallel database includes plural nodes connected in parallel. Each node includes a database server and two databases connected thereto. Each database server includes a query optimizer. Moreover, a partitioning advisor communicates with the database server and the query optimizer. The query optimizer and the partitioning advisor include a program for recommending and evaluating data table partitions that are useful for processing a workload of query statements. The data table partitions are recommended and evaluated without requiring the data tables to be physically repartitioned.

7636735, Dec 22, 2009

Aug 19, 2005

11/206978

Peter Jay Haas - San Jose CA, US
Vanja Josifovski - Los Gatos CA, US
Guy Maring Lohman - San Jose CA, US
Chun Zhang - San Jose CA, US

International Business Machines Corporation - Armonk NY

G06F 17/30

7071041, 707 2, 707 4, 707 5

Provided is a method for modeling the cost of XML as well as relational operators. As with traditional relational cost estimation, a set of system catalog statistics that summarizes the XML data is exploited; however, the novel use of a set of simple path statistics is also proposed. A new statistical learning technique called transform regression is utilized instead of detailed analytical models to predict the overall cost of an operator. Additionally, a query optimizer in a database is enabled to be self-tuning, automatically adapting to changes over time in the query workload and in the system environment.

8001109, Aug 16, 2011

Apr 28, 2008

12/110674

Guy Maring Lohman - San Jose CA, US
Nimrod Megiddo - Palo Alto CA, US
Jun Rao - San Jose CA, US
Chun Zhang - San Jose CA, US

International Business Machines Corporation - Armonk NY

G06F 7/00

707713

A system for automating data partitioning in a parallel database includes plural nodes connected in parallel. Each node includes a database server and two databases connected thereto. Each database server includes a query optimizer. Moreover, a partitioning advisor communicates with the database server and the query optimizer. The query optimizer and the partitioning advisor include a program for recommending and evaluating data table partitions that are useful for processing a workload of query statements. The data table partitions are recommended and evaluated without requiring the data tables to be physically repartitioned.

20080222087, Sep 11, 2008

May 15, 2006

11/383481

Andrey Balmin - Mountain View CA, US
Tom Eliaz - San Jose CA, US
Guy M. Lohman - San Jose CA, US
David E. Simmen - San Jose CA, US
Chun Zhang - San Jose CA, US

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

G06F 17/30

707 2, 707E17017

An cost based optimizer optimizes access to at least a portion of hierarchically-organized documents, such as those formatted using eXtensible Markup Language (XML), by estimating a number of results produced by the access of the hierarchically-organized documents. Estimating the number of results comprises computing the cardinality of each operator executing query language expressions and further computing a sequence size of sequences of hierarchically-organized nodes produced by the query language expressions. Access to the hierarchically-organized documents is optimized using the structure of the query expression and/or path statistics involving the hierarchically-organized data. The cardinality and the sequence size are used to calculate a cost estimation for execution of alternate query execution plans. Based on the cost estimation, an optimal query execution plan is selected from among the alternate query execution plans.

20100005077, Jan 7, 2010

Jul 7, 2008

12/168821

Ravi Krishnamurthy - Sunnyvale CA, US
Chi-Young Ku - San Ramon CA, US
James Shau - San Jose CA, US
Chun Zhang - San Jose CA, US
Kapil Surlaker - Sunnyvale CA, US
Jeremy Branscome - Santa Clara CA, US
Michael Corwin - Sunnyvale CA, US
Joseph I. Chamdani - Santa Clara CA, US

Kickfire, Inc. - Santa Clara CA

G06F 17/30

707 4, 707E17136

Embodiments of the present invention generate and optimize query plans that are at least partially executable in hardware. Upon receiving a query, the query is rewritten and optimized with a bias for hardware execution of fragments of the query. A template-based algorithm may be employed for transforming a query into fragments and then into query tasks. The various query tasks can then be routed to either a hardware accelerator, a software module, or sent back to a database management system for execution. For those tasks routed to the hardware accelerator, the query tasks are compiled into machine code database instructions. In order to optimize query execution, query tasks may be broken into subtasks, rearranged based on available resources of the hardware, pipelined, or branched conditionally

20180223372, Aug 9, 2018

Aug 3, 2016

15/749855

- Redwood City CA, US
Chun ZHANG - Palo Alto CA, US

C12Q 1/6886
G01N 33/574
C07K 16/28
A61K 31/337
A61K 39/395

The present invention provides biomarkers for identifying tumors likely to respond to treatment with Wnt pathway inhibitors. Also provided are methods for identifying tumors and/or patients that are likely to be responsive or non-responsive to treatment with a Wnt pathway inhibitor. Methods for treating a patient with cancer are provided, wherein the cancer is predicted to respond to a Wnt pathway inhibitor.

20160304968, Oct 20, 2016

Dec 2, 2014

15/101242

- Redwood CA, US
CHUN ZHANG - Palo Alto CA, US

C12Q 1/68
C07K 14/71
A61K 39/395
A61K 47/48
A61K 38/17
C07K 16/28
A61K 31/337

The present invention provides biomarkers for identifying tumors likely to respond to treatment with Wnt pathway inhibitors. Also provided are methods for identifying tumors and/or patients that are likely to be responsive or non-responsive to treatment with a Wnt pathway inhibitor. Methods for treating a patient with cancer are provided, wherein the cancer is predicted to respond to a Wnt pathway inhibitor.

20160030561, Feb 4, 2016

Mar 13, 2014

14/776259

- Redwood City CA, US
Chun ZHANG - Palo Alto CA, US
Ann M. KAPOUN - Mountain View CA, US

OncoMed Pharmaceuticals, Inc. - Redwood City CA

A61K 39/395
G01N 33/574
C12Q 1/68
C07K 16/28
A61K 45/06

Novel methods of treating pancreatic cancer are provided. In one embodiment, the method comprises determining NOTCH mRNA expression levels in pancreatic cancer cells. In another embodiment, the method further comprises administering to a subject in need thereof a therapeutically effective dose of a NOTCH antagonist.