Papers by Titus Winters

Computer Aided Grading with Agar - Frontiers in Education CS 2006 - Introduces Agar, a Computer-Aided Assessment (CAA) tool focused on working with, rather than replacing, existing usage paradigms for graders. By extending existing techniques, Agar allows for greater usability and flexibility than other CAA systems.
Closing The Loop On Test Creation: A Question Assessment Mechanism for Instructors - SIGCSE 2006 - Introduces an Item-Response Theory (IRT) based method for determining a numeric difficulty value for questions, as well as an estimate of the "noise" in student scores on those questions.
TinkerNet: A Low-Cost and Ready-To-Deply Networking Laboratory Platform - ACE2006 - Discusses installation and adoption issues for TinkerNet, as well as improvements to the system over the past two years.
What Do Students Know - ICER05 - Outlines tools and data-processing techniques for an outcomes-based assessment system.
Topic Extraction from Item-Level Grades - AAAI-05 Workshop on Educational Data Mining - Discussion of techniques for discovering topical-similarity in questions based on student scores on those questions.
TinkerNet: A Low-Cost Networking Laboratory - ACE 2004 - Introduces TinkerNet, a platform for students in undergraduate networks to build their own TCP/IP network stack and have it run on actual Ethernet hardware.