yangying xu
Santa Clara, California, United States
2K followers
500+ connections
About
Software Engineer with 6+ yoe designing and delivering large-scale cloud infra…
Activity
2K followers
Experience
Education
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Carnegie Mellon University
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#1 MIS Program
Data & Software Management: Objected-Oriented Java Programming, Distributed Systems, OOAD, Web Application Development, NoSQL/SQL Database Management, Linux ,Machine Learning, Big data and Large-scale computing, Data Mining
Business/Management: Organizational Design and Implementation, Digital Transformation, Professional Speaking/Writing, Managing Disruptive Technologies -
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Licenses & Certifications
Volunteer Experience
Publications
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Kalman Filter-based Time Series Prediction of Cake Factory Daily Sale
CISP-BMEI Conference, EI Compendex & ISTP & IEEE Xplore
Courses
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Enterprise Web Development
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Big data and Large-scale computing
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Data Mining
95791
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Database Management
95703
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Distributed System
95702
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Financial Accounting
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Introduction to Machine Learning (phd)
10701
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Linux & Open source
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NoSQL database management
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Object Oriented Programming in Java
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Organization Design and Implementation
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Projects
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Semantic Book Recommendation System
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• Developed an intelligent content-based book recommender leveraging Large Language Models to enhance user discovery and deliver personalized reading suggestions.
• Prepared and cleaned a 7K-book dataset using Pandas, implementing vector search by converting book descriptions into embeddings via OpenAI API and storing them in ChromaDB.
• Engineered book category classification via zero-shot learning with Hugging Face Transformers and sentiment analysis using fine-tuned RoBERTa model for…• Developed an intelligent content-based book recommender leveraging Large Language Models to enhance user discovery and deliver personalized reading suggestions.
• Prepared and cleaned a 7K-book dataset using Pandas, implementing vector search by converting book descriptions into embeddings via OpenAI API and storing them in ChromaDB.
• Engineered book category classification via zero-shot learning with Hugging Face Transformers and sentiment analysis using fine-tuned RoBERTa model for precise recommendations.
• Built a Gradio dashboard allowing users to input queries and dynamically filter results by category and sentiment. -
Location-based Event Search and Ticket Recommendation Web
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• Designed an interactive web page for users to search event and purchase tickets utilizing AJAX.
• Improved personalized business event recommendation based on search history and favorite records.
• Used MySQL to store user data for consistency and implemented NoSQL database (MongoDB) to migrate event data from Ticketmaster API for better scaling.
• Deployed to Amazon EC2 to handle 300 queries per second tested by Apache JMeter.
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Mobile-to-Cloud Currency Converter Web Service
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•Develop a currency converter RESTful Web Service, to fetch real-time and past exchange rate with a 3rd party API.
•Built an Android mobile application that communicates with the web service deployed on cloud Heroku.
•Store the log information in MongoDB and created a web-based dashboard to display logging and operations analytics information.
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Distributed BlockChain Management Service | Distributed System
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• Designed and implemented blockchain API, which enables remote clients to record transactions, with Proof-of-Work protocol in J2EE platform in different web service styles (SOAP, RESTful, etc).
• Secured the transaction process by realizing server authentication via SSL Protocol and by implementing digital signature mechanism through SHA256, TEA and RSA.
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LBS based Android App for smart driving | Android
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• Integrated Google Map API to display the nearby hot alerts and navigate to avoid the traffic.
• Utilized Android Broadcast Intent to handle inter-communication between drivers and passengers.
• Improved the UI/UX flow with Animation, ToolBar/ActionBar, etc.
• Handled the speed recognition intent to handle simple voice control.
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AirBnB New User Bookings (Kaggle Data Mining Project)
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Built classification model using XgBoost algorithm to predict the preferred holiday destination country of new users based on the data of 210,000 users' behaviors with an accuracy of 86%.
Honors & Awards
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2 yr's University Academic Excellence Award (Top 5%)
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3 yr's National Encouragement Scholarship
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Languages
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Chinese
Native or bilingual proficiency
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English
Professional working proficiency
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Spanish
Elementary proficiency
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