About Us
Founded in February 2020 and headquartered in Boston, Massachusetts, LexiGraph provides custom software development, data science, machine learning, and large language model integration services to select clients serving the public interest.
We specialize in natural language processing and public health applications, managing cloud-based Web application development, deployment, security, availability, and scalability.
Clark Freifeld, PhD
Founder/Principal
Dr. Freifeld's research focuses on applications of computing and artificial intelligence to the improvement of population health. His work has been supported by agencies including CDC, WHO, DHS, DOD, HHS, and FDA, as well as being recognized by the Smithsonian and Library of Congress. Past projects include: HealthMap, a global disease surveillance platform, and MedWatcher, a medical product safety monitoring system.
Currently a Senior Software Engineer at NewGrid, a climate-tech startup, Freifeld served on the faculty in Computer Science at Northeastern University from 2016 to 2022. Before joining the faculty at Northeastern, Freifeld was co-founder and Chief Technology Officer of Epidemico, a health informatics spinout from Boston Children's and MIT, now a division of Booz Allen Hamilton. He holds a Bachelor's in Computer Science and Mathematics from Yale University, a Master's from the MIT Media Lab, and a PhD in Biomedical Engineering from Boston University.
Christopher Menone, MESc
Project Manager
A graduate of Princeton and Yale, where he studied biology and environmental science, Christopher has been active in the public health field since 2010. Since then, he has contributed to projects and publications on a variety of topics, including the use of social listening to monitor the use and effects of pharmaceutical products, the development of a mobile app for adverse-event reporting, and the utilization of crowdsourced black-market drug price data for the assessment of abuse-deterrence strategies.
Projects
FORESFA
Global medicine quality monitoring platform funded by Wellcome Trust, tracking falsified and substandard medicine events using natural language processing.
Client: Oxford University
Consortium InformationView Project
StreetRx
Crowdsourcing platform tracking black-market transactions in pharmaceutical products, serving 300k+ visits annually.
Client: Seeking collaborators
View ProjectHateMap
Global monitoring system for hate incidents, characterized by severity and target identity.
Independent research project with Northeastern, UCSF, and UCBerkeley
Legislative Tracking System
Speech-to-text video data scraping and processing pipeline with LLM integration for state-level legislative tracking.
Client: InstaTrac
Prison Release Mortality Study
Web scraping project measuring mortality in people recently released from prison.
Client: University of North Carolina, Center for Health Equity Research
Pharmaceutical Social Media Analysis
Twitter/X data extraction and analysis for mentions of pharmaceutical products over time.
Client: Large pharmaceutical company ($1B+ revenue)