Teaching

• Current courses (Fall 2006):
  
• 15-100  Intro/Intermediate Programming - taught in Java for people who have no programming experience.
• 15-128  Freshman Immigration Course.  A course to introduce cs majors to computer science as a field and some of the projects at Carnegie Mellon.  Rich Pattis is the leader of this course.
  
• 15-391 Technical Consulting in the Community.  A course which has students consulting for non-profit organizations.  Co-taught with Joe Mertz.
  
• Past courses:
• SAMS - CS.
• A summer program for high school students, the Summer Academy for Math and Science, is run by the CMARC office.  Ananda Gunawardena, Neema Moraveji and I have worked on computer science projects with some students in this program.  My involvement was 2002-2004.
• Carnegie Mellon, Computer Science Department (2001- present)
  
• 15-100.   See current semester for a sample of this course.
  
• 15-111 Intermediate/Advanced Programming - beginning data structures in Java, for people who have introductory level programming experience in a language other than Java
• Muhlenberg College, Department of Mathematical Sciences.   (1998-2001) 
  
• Statistical Methods, Topics in Mathematics, Computer Science I, Computer Science II, Introduction to Computers, Data Structures, Theory of Programming Languages.
  
• St. Lawrence University, Department of Mathematics.   (1995-1998) 
  
• Concepts of Computation, Introduction to Computer Programming, Introduction to Computer Science, Data Structures, Object-Oriented Programming, Programming Languages, Algorithm Analysis.
• Dartmouth College, Department of Computer Science - then part of the Department of Mathematics (1994)
  
• Introduction to Computer Science (Honors)
  

Research

I received my PhD in Computer Science from Dartmouth College's Department of Computer Science in June 2002.
My thesis:  Locally Minimal Triangulations
Advisor:  Robert L. "Scot" Drysdale
 

My papers: (Some links thanks to others. I didn't make all this stuff available myself. Further, some of it is copyrighted.)

• "On Exclusion Regions for Optimal Triangulations", Scot Drysdale, Scott McElfresh, Jack Scott Snoeyink.  Discrete Applied Mathematics 109 (2001) 49--65. [Preliminary version at CG98, 14th European Workshop on Computational Geometry.]
• "Fast Greedy Triangulation Algorithms", Matt Dickerson, Scot Drysdale, Scott McElfresh, Emo Welzl. Computational Geometry: Theory and Applications, 8 (1997) 67--86.  [Preliminary version at SoCG94, ACM Symposium on Computational Geometry.]
• "New Algorithms and Empirical Findings on Minimum Weight Triangulation Heuristics", Matt Dickerson, Scott McElfresh, Mark Montague. Proceedings of the 11th Annual Symposium on Computational Geometry (1995): 238--247.

Some recent work in computational geometry includes:

Affiliations within CMU

• Lecturer, Computer Science Department, School of Computer Science (2001 - present)
  
• SCS representative, Educational Facilities Committee (2004-present)
• Coordinator, Introductory Programming, School of Computer Science (2004 - present)
• Member, Gates Building Classrooms Committee, School of Computer Science (2005 - present)

Affiliations external to CMU

• Association for Computing Machinery
• Special Interest Group on Computer Science Education
• Referee/reviewer for several of their symposia.  Have reviewed papers, special sessions, and workshops. (1995-present)
  
• Consortium for Computing Sciences in Colleges
• Northeastern Region
• Treasurer (1999-present : term ends 2005)
• Conference co-chair, 2004 conference at Union College
• Papers co-chair, 2001 conference at Middlebury College
• Panels/Tutorials/Workshops co-chair, 2000 conference at Ramapo College
• Panels/Tutorials/Workshops co-chair, 1998 conference at Sacred Heart University
  
• Panels/Tutorials/Workshops co-chair, 1997 conference at Northeastern University
• Advanced Placement Program
• Reader, for evaluating student reponses to the free-response questions on the AP Computer Science exam. (1995-present)
• Computer Professionals for Social Responsibility
• Member.