Shu Chen Email & Phone Number

Google Billing System.

Campbell, Ca

Develop Ask data analytics infrastructure. Generate data analytics products using Hadoop Map/Reduce computation which helps optimizing ads/content targeting, search quality, news feeding and site integrity, providing business insights.

A Security and Privacy-Enhanced Architecture for Mobile Location-Based Services - Performed risk and threat analyses and defined attack models.- Designed security protocols and system architecture.- Proposed a GSM-based location verification method and evaluated the performance through MatLab simulation. Exploiting Environmental Properties for Wireless Localization- Proposed an innovative idea that uses environmental properties for wireless localization, which reduces the costs of deploying additional infrastructure.- Designed the Flex-EP localization algorithm and its variants which solved inconsistent data units problem and the problem that data is unavailable at certain positions.- Designed the Spatio-Correlation Weighting Mechanism (SCWM) which selects parameter subsets that yield good localization accuracy.- Demonstrated through MatLab simulation using real world data that SCWM is effective; moreover, Flex-EP algorithms outperform the traditional localization methods by 20%.Spatio-Temporal Access Control- Studied the problem of Context-Based Access Control, and identified the problem of Spatio-Temporal Access Control (STAC).- Formulated an abstract STAC model, and proposed using Finite Automata to represent complex access control policies.- Designed a seamless architecture for STAC which improves the security while minimizing privacy breaches and position spoofing.Dynamic Time-Dependent Encryption (DTDE)- Identified the problem in Location-Based File Access Control that a user whose permissions have expired attempts to re-open a restricted file.- Proposed a Dynamic Time-Dependent Encryption system to solve the problem.- Designed Dynamic Encryption algorithms, and proposed solutions to time synchronization and memory access control problems that arise in the DTDE system.

Responsibilities: Design and lecture on recitations; conduct lab sessions; design andgrade projects, homework assignments, quiz and exams; hold office hours and reviewsessions; manage courses using online course management system -- Sakai. Courses taught and topics covered:– Sequential Decision Making (Graduate level) – Spring 2009 Markov decision processes, Stochastic and repeated games, Partially Observable Markov decision processes, Reinforcement learning; Examines efficient algorithms for single agent andmulti-agent planning, and approaches to learning near-optimal decisions from experience. – Numerical Analysis (Graduate Level) – Spring 2006, Spring 2007, Fall 2006 Floating point numbers and roundoff error, Solutions of nonlinear and linear algebraic systems, Least squares approximation, Polynomial interpolation, Numerical differentiation andintegration, Numerical solution of ordinary differential equation. – Numerical Analysis and Computing (Undergrad Level) – Spring 2005 – Introduction to Computer Science – Fall 2004 Programming Process, introductory programming, Java programming, data structures,recursion, Object-Oriented Programming, Error handling. – Introduction to Computers and Applications – Spring 2004 Computer hardware and software features, Applications in presentation software, Electronic spreadsheet, Database management, Network applications, Webpage design, Graphics, Structured programming concepts using TRUE BASIC.

Location-based Services on Cellular Networks- Led and managed research project on locating mobile businesses using cellular networks.- Designed and implemented the simulation system using Java.- Built a prototype in real world cellular networks on AT&T's Mobile Switching Center and programmed on smart phones under Mobile Windows 6 using C.