Benjamin Lerner


Associate Teaching Professor

Khoury College of Computer Sciences
Northeastern University

Fall 2024 office hours:

I do not yet know when my regularly-scheduled office hours this fall will be.
CS4500, TBD
CS2500, TBD
By appointment,
or whenever I'm online and available

Research interests and papers

  • Pyret: A language designed for teaching introductory programming, with an emphasis on testing, clarity, and the occasionally-awful pirate-themed pun.
  • Semantics for Web Programming: Modern web programs mix rich data structures, subtle event-based execution, third-party data, and powerful but small-scale APIs. Understanding and analyzing these programs requires first building testable and executable semantics for each of these pieces, and then using these semantics to drive program analyses.
  • Web browser extension compatibility: Firefox’s rise in popularity can be largely attributed to its much-touted extensions, which offer versatility, convenience and relatively-low learning curves to amateur and expert coders alike. But with such customizability comes problems: many extensions fail to work properly when installed simultaneously. This project aims to provide a better programming model for extensions that can detect and perhaps correct these conflicts before they happen.

More information can be found on the following page.


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Email (essential):
Location (likely):
West Village H, Office 326
Post (possible):
Northeastern University
Khoury College of Computer Sciences
360 Huntington Ave, 2nd floor
Boston, MA 02115
work Lecturer Office 326