Fei Chen Email & Phone Number

Palo Alto, Ca, Us

San Jose, California, Us

Mountain View, California, Us

Data-Driven Site Optimization Platform* Distributed, highly efficient big data/machine learning system development for understanding correlations between users’ behaviors and website assets. This system is built on top of Spark, Cascading, Redshift, Solr Cloud. * Advanced machine learning technique development for mining the site optimization opportunities to increase conversions, such as opportunities of landing page, campaign, ads performance.Real-time Auto Page Generation and Publishing* Distributed, highly available and scalable backend system development for online retailers to create a category page, search page, or other kinds of page, with a given query automatically with machine learning techniques.* Distributed, highly scalable backend system development for publishing these pages to various marketing channel in real-time.Webpage Management System* Distributed, highly available and scalable datastore and search infrastructure design and development for online retailers to manage 100+ millions of web pages. The system is built on top of cutting-edge systems, such as Cassandra Cluster, Solr Cloud, Elastic Search, etc.* Highly scalable scoring framework design and development for computing various metrics for each of 100+ million pages, such as quality, variation, uniqueness, user behavior, etc.Analytics of Ecommerce Web Traffic* Large-scale system development for Java-based serving system analyzing 100+ million pixel logs per day.* Large scale data processing, Map-Reduce algorithms using Apache Hadoop framework, Amazon AWS (specifically S3, EC2 and Elastic Map-Reduce).

Scalability of VMware ESX hosts* Significantly improved the number of virtual machines supported by a VMware ESX host from 512 to 1024.vCenter Performance over WAN* Optimized the performance and scalability of vSphere and vCenter in high-latency and low-bandwidth environment by ~45%.

East Lansing, Mi, Us

High Performance Evaluation of Access Control Policies.* Prototyped XEngine, the first fast and scalable XACML policy evaluation engine (4000+ line Java code).* XEngine has drawn much attention from both academia and industry (downloaded 175 times).Testing, Fault Localization, and Automatic Fault Correction of Firewall Policies.* Proposed efficient and effective tools for firewall testing and fault localization.* Prototyped the first systematic framework for automatic correction of firewall policy faults.Privacy and Integrity Preserving Data Publishing.* Designed a secure and efficient protocol for query processing in sensor networks.* Designed a secure and efficient protocol for query processing in sensor networks.Cross-Domain Firewall Optimization and Network Reachability Quantification.* Designed the first privacy-preserving protocol for cooperative firewall optimization.* Designed the first privacy-preserving protocol for quantifying network reachability.

Digital Watermarking for MPEG-4 and H.264 Videos.* Designed and implemented an efficient digital watermarking scheme for MPEG-4 and H.264 videos.

Bluetalk, a SIP-based VoIP Service.* Led a 10+ group to develop Bluetalk, a SIP-Based VoIP service that enables users to make voice calls and send instant messages using a smart phone that connects to a PC via Bluetooth or WiFi.* Designed system architecture and integrated SIP client with Bluetooth communication module.* Won the Golden Prize in Nokia Symbian Application Challenge.

Ph.D, Department Of Computer Science And Engineering

M.E., Information Processing And Pattern Recognition

B.S., Department Of Automation