Samuel Abedu

Projects

Systems I have built and deployed in research and industry — from pharmaceutical chatbots to open-source developer tools.

2025·Sandoz

Drug Information Chatbot

Problem
Healthcare professionals and patients need fast, reliable access to drug and pharmaceutical information, but existing tools are often fragmented and difficult to use in practice.
My contribution
Led development of an AI-powered chatbot that answers drug-information questions for real users in the pharmaceutical industry, from design through deployment.
Outcome
Deployed a production chatbot used to support drug-information access, with experiences documented in a peer-reviewed industry case study.
Technologies
LLMsRAGPythonCloud deployment
Live demoPaper
2025·DAS Lab · Concordia University

RepoChat

Problem
Developers and non-technical stakeholders struggle to extract insights from GitHub repositories because repository data is spread across commits, issues, files, and metadata.
My contribution
Built a web-based chatbot that synergizes LLMs with knowledge graphs to translate natural-language questions into graph queries and return repository answers.
Outcome
Achieved 90% accuracy on a user study of 40 repository-related questions and released an open-source tool and replication package.
Technologies
PythonLangChainNeo4jGitHub GraphQLStreamlit
Live demoCodePaperDOIDataset