With six years of data experience, I specialize in using advanced data science techniques to turn raw data into actionable insights across diverse industries. As a Data Scientist at YFY GROUP Fidelis IT Solutions, I’ve built RAG systems with ChromaDB, deployed credit investigation platforms, fine-tuned LLMs, and integrated text and numerical data for cutting-edge models. By embracing emerging technologies and continuous learning, I create innovative, high-impact solutions that deliver measurable results.
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Ai EngineerWspTaiwan -
Data ScientistYfy Inc. Dec 2023 - Present- Develop a RAG system that incorporates vectorized text data stored in ChromaDB, using the SelfQueryEngine as the retriever.- Design and deploy a comprehensive credit investigation platform featuring a credit assessment model, automated customer information extraction, and sales performance analysis.- Develop the data pipeline to process data into Neo4j database for implementing GraphRAG.- Fine-tuning Llama2-8B with QLORA to generate news summary.- Develop an LSTM model to forecast solar energy production.- Create a time series model that integrates both text and numerical data, leveraging insights from academic research.- Adopt cutting-edge techniques by reading academic papers and implementing their methodologies. -
Data ScientistShaku Technology Co., Ltd. Jun 2023 - Dec 2023- Participate in the AI+ Competition: Develop a risk assessment model that combines Gaussian Mixture Model with SHAP for explainable AI.Winning the highest reward.- Develop and maintain dashboards using BigQuery and Tableau. -
Data ScientistX-Legend Entertainment Co Ltd Apr 2021 - Nov 2022- Lead a team of 2 data analyst and 1 machine-learning engineer to cooperate with various teams in a fast-paced environment.- Leverage user behavior analysis and A/B test to identify an opportunity to increase product retention rate by 3%.- Developed a Random Forest model to predict player churn with an accuracy of 92%.- Manage and optimize the data pipeline of five products, decreasing the running time of data processing by 60%. -
Data AnalystX-Legend Entertainment Co Ltd Dec 2018 - Mar 2021- Build the data pipeline and increase the diversity of player behavior collection for further analysis.- Build out the data and reporting infrastructure from the ground up using R and Tableau to provide insights into the business KPIs.- Automated processing of millions of rows of data from daily player action to improve reporting of product metrics, saving the company 24 hours of weekly labor.- Work with product and design teams to understand design and monetization needs, then translate them into actionable reports in Tableau. -
Game DesignerX-Legend Entertainment Co Ltd Dec 2017 - Dec 2018- Design game system.- Optimize game system. -
Research AssistantLab Of Cell Dynamics, Institue Of Molecular Biology, Academia Sinica, Taiwan Jan 2016 - Aug 2017Nangang, Taiwan- Use MATLAB to analyze the cell death rate over time under different dose of the drug combination in order to observe the synergistic effect.
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Summer InternshipInstitute Of Molecular Biology, Academia Sinica, Taiwan Sep 2010 - Sep 2011Nangang, Taipei City
Chi Chang Education Details
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Industrial Engineering And Engineering Management
Frequently Asked Questions about Chi Chang
What company does Chi Chang work for?
Chi Chang works for Wsp
What is Chi Chang's role at the current company?
Chi Chang's current role is AI Engineer.
What schools did Chi Chang attend?
Chi Chang attended National Taiwan Normal University, National Tsing Hua University.
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