Chang Liu Email & Phone Number

Mountain View, California, Us

Mountain View, California, Us

Mountain View, California, Us

Moveworks is a cloud-based AI platform purpose-built for large enterprises that solves one, big, frustrating problem: Resolving employees' IT support issues. We are an engineering led advanced AI team that is building autonomous AI to solve IT issues, instantly and automatically - with no human intervention. We count many of the world’s most recognizable brands as our customers. From hyper-growth startups to the Fortune 500, these companies rely on Moveworks to keep their employees productive and their businesses running smoothly. Our team is growing fast and if you want to make an impact at a rapid-growth AI company, working with cutting-edge technology and solving impactful problems, please reach out to me or check out our careers page.

Mountain View, California, Us

厦门市, 福建省, Cn

• Built and maintained infrastructure for programmatic advertising on various ad platforms and ad exchanges.• Trained and served ml model for click-through rate prediction using spark.• Developed automatic product feature extraction and ad creative generation tools w/ natural language processing.• Built data analysis pipelines and visualization dashboards for internal and external use.

London, Gb

• Researched on damage detection using guided ultrasonic waves on civil and mechanical structures.• Developed a methodology to evaluate the performance of damage detection methods on real settings.• Participated projects including signal de-noising in large-grain material, finite element modeling of corrosion.

San Francisco, Ca, Us

• Built trufitskincare.com, recommending skin care products based on user profile and preference.• Scraped 400,000+ user reviews from Sephora.com and Birchbox.com with urllib and Selenium, cleaned data with Python and NLTK, and stored data in a MySQL database.• Generated recommendation using item-centric collaborative filter implemented in Python scikit-learn.• Analyzed sentiment of review texts and keywords using a Naïve Bayesian classifier trained using NLTK. • Built a user-interactive front end using Flask, Bootstrap, and deployed on Amazon Web Services.

Pittsburgh, Pa, Us

Worked as teaching assistant for five different courses in Department of Civil and Environmental Engineering at Carnegie Mellon University. - Data Management - Data Acquisition - Advanced Infrastructure System (AIS) Project - Rapid Prototyping for AIS though O-O Programming - Building Information Modeling Responsibilities include holding office hours, giving recitations, preparing and grading assignments, advising student projects.

Pittsburgh, Pa, Us

My research focuses on applying signal processing and machine learning techniques to better understand sensor data collected from variety of infrastructures, especially for monitoring the structural integrity. Recent work focused on implementing a low-cost ultrasonic sensing system to detect and localize damage on civil infrastructures under practical environmental and operational conditions. Specialties: Ultrasonic sensing, statistical machine learning, principal component analysis, data acquisition and management.

• Launched SchemaFusion (schemafusion.com) that helps manage building information more efficiently.• Built a smart web-platform using Python+Django for intelligent information management and visualization. • Led a team to develop a module to recognize building components from scanned building drawings using Hough transform, ray casting, and moving-window cross-correlation implemented in MATLAB and Python.• Seed funded by Project Olympus, CMU and Acceleprise Enterprise Accelerator, Washington, DC.

Doctor Of Philosophy (Phd), Civil Engineering

Master'S Degree, Civil Engineering

Bachelor'S Degree, Civil Engineering