International Business Machines Corporation

Google Inc.

Yuzhou Zhang

Bo Gao

Liya Fan

Wen Hao An

Xi Sun

Edward Y Chang

Zhiyuan Liu

The invention relates to compressed data transmission in wireless data communication. Disclosed are methods and apparatuses for transporting residue of vehicle position data via a wireless network. A disclosed method for transporting residue of vehicle position data via a wireless network, includes the steps of: receiving data for updating residue encoding schema from a monitoring server; constructing a residue encoding schema based on the data, thereby producing a constructed residue encoding schema; and storing the constructed residue encoding schema such that the constructed residue encoding schema will become the current residue encoding schema; where: the constructed residue encoding schema is constructed such that each residue of the constructed residue encoding schema corresponds to a code; and the constructed residue encoding schema is constructed such that a residue having a relatively high probability of occurrence corresponds to a code of relatively short length.

Transporting residue of vehicle position data via wireless network

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enhanced parallel latent Dirichlet allocation (PLDA+). A PLDA+ system is a system of multiple processors that are configured to generate topics from multiple documents. The multiple processors are designated as two types: document processors and matrix processors. The documents are distributed among the document processors. Generated topics are distributed among the matrix processors. Tasks performed on the document processors and matrix processors are segregated into two types of tasks: computation-bound tasks and communication-bound tasks. Computation-bound tasks are CPU intensive tasks; communication-bound tasks are network intensive tasks. Data placement and pipeline strategies are employed such that the computation-bound tasks and the communication-bound tasks are distributed to the processors in a balanced manner, and performed in parallel.

Parallel generation of topics from documents

Growing community of inventors

Beijing, China

Yuzhou Zhang