Data Scientist
2017 - PRESENTGN Science- Created a neural network-based text classifier and text summarizer with transfer learning (using Fast.ai and AWS SageMaker) for a client's proprietary data.
- Built a data pipeline to scrape (ETL) more than 1 million PDFs from a website to model and rate a financial broker's integrity using the AWS platform (EC2, RDS, DynamoDB).
- Implemented new clustering algorithms for the identification and characterization of neuronal cell types.
- Developed and managed digital marketing campaigns (Facebook Ads, Google, AdWords Search/Display/Video), for big-budget (more than $100,000/month) clients.
- Implemented A/B testing to optimize the customer journey through a conversion funnel.
Technologies: Amazon SageMaker, Amazon DynamoDB, Amazon EC2, PostgreSQL, MongoDB, Fast.ai, PythonScientist
2010 - 2013Revalesio Corporation- Set up electrophysiology laboratory facilities for in-house ion channel screening.
- Established a semi-automated patch clamp pipeline for membrane-based target screening using proprietary cell lines.
- Coordinated studies with leading institutions and CRAs to elucidate the biophysical mechanism of action for nanobubble therapeutics.
- Actively contributed to the physical-chemistry characterization of nanoparticles in solution.
- Devised new detection methods using nanopores.
- Successfully detected and characterized cardiomyocyte activity modulation for A/B testing.
Technologies: MATLABPostdoctorate Fellow
2006 - 2007Boston Children's Hospital | Harvard Medical School- Conducted single-cell-patch-clamp experiments on tissue slices from the mammalian visual thalamus.
- Devised stereotactic injection techniques for the focalized injection of viral vectors.
Technologies: MATLAB, Neuroscience
James Choi
Natural Language Processing (NLP) Developer in Vancouver, BC, Canada
Member since October 26, 2018
James enjoys the challenges of extracting value from real-world datasets by wielding the latest machine learning and artificial intelligence tools in the Python stack. He has extensive experience in scientific research in academia and industry and thrives in collaborative teamwork.
James is now available for hire
Portfolio
- GN ScienceAmazon SageMaker, Amazon DynamoDB, Amazon EC2, PostgreSQL, MongoDB, Fast.ai...
- Revalesio CorporationMATLAB
- Boston Children's Hospital | Harvard Medical SchoolMATLAB, Neuroscience
Experience
- NumPy 2 years
- Natural Language Processing (NLP) 2 years
- Machine Learning 2 years
- Scikit-learn 2 years
- Amazon Web Services (AWS) 2 years
- Amazon EC2 2 years
- PySpark 1 year
Availability
Part-time
Preferred Environment
Amazon Web Services (AWS), MacOS, Linux, Vim Text Editor, Atom, Python, Git
The most amazing...
...thing I've worked on was applying my neuroscience expertise to develop new methods in the characterization of charge-stabilized nanostructures (nanobubbles).
Employment
Experience
- Current and Previous Projects in Data Sciencehttp://q0j0p.github.io
This is a blog that documents all of the projects that I have tackled thus far.
Skills
Paradigms
Data Science, CRISP-DMOther
Software Development, Natural Language Processing (NLP), Artificial Intelligence (AI), Supervised Learning, Machine Learning, Neuroscience, Clustering, Big DataLanguages
Python 3, Python 2, Python, SQLLibraries/APIs
Pandas, NumPy, Scikit-learn, PySpark, Fast.aiTools
GitHub, Git, Atom, Vim Text Editor, MATLAB, Amazon SageMaker, Amazon ECS (Amazon Elastic Container Service), AWS Glue, AWS CLIPlatforms
Amazon EC2, Amazon Web Services (AWS), Linux, MacOS, Jupyter NotebookStorage
MongoDB, Amazon DynamoDB, Amazon S3 (AWS S3), PostgreSQLFrameworks
AWS EMR
Education
- PhD Degree in Neuroscience1998 - 2005Brandeis University - Waltham, MA, USA
- Bachelor of Arts Degree in Biochemistry and Cognitive Science1993 - 1998Rice University - Houston, TX, USA
Certifications
- Data ScienceMARCH 2018 - PRESENTGalvanize
- TESOLOCTOBER 2014 - PRESENTInternational Language Academy of Canada Vancouver‎
