I'm Caleb β€” a full-stack engineer with a background in AI/ML. I'm currently a Senior SWE at Open Government Products, where I work on Healthtech products.

I am Singaporean πŸ‡ΈπŸ‡¬, so the way to my heart is local food. In my free time, I read and play chess β™ŸοΈ badly.

stuff I've worked on

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Care360 is a patient management system for Medical Social Workers that supports planning and management of patients' psychosocial and/or financial care. It is used by all public healthcare institutions in Singapore.

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An interactive visualization of the Cleanlab algorithm for finding label errors and out-of-distribution data in ML datasets

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Cleanlab's flagship SaaS product -- a no-code automatic data correction solution for fixing mislabeled data, removing out-of-distribution data, and ranking data by quality.

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Cleanlab automatically finds errors in datasets and enables users to do machine learning/analytics with messy real-world data and labels.

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Stanford's chatbot submission for the Alexa Prize competition, a university competition to advance conversational AI. It incorporates state-of-the-art methods in controllable neural generation and rich response generation modules that are informed by the hundreds of thousands of people that chatted with it throughout the year. In 2021, we came in 2nd and earned a $100K USD cash prize.

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ConvoKit is a Python toolkit for extracting conversational features and analyzing social phenomena in conversations. It includes several large conversational datasets along with scripts exemplifying the use of the toolkit on these datasets.