Publications
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Maximum Entropy Markov Models for Information Extraction and Segmentation
We address: modeling sequential data with HMMs, problems with previous methods: motivation, the maximum entropy Markov model, segmentation of FAQs: experiments and results.
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Ontology Construction Toolkit
The goal of this project was to enable knowledge engineers to construct knowledge bases (KBs) faster. To achieve this goal, we investigated two techniques: knowledge reuse and axiom templates. The…
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Reusability And Interoperability Of Tools For Mathematics Learning: Lessons From The Escot Project
In this paper we describe our experience in creating interactive mathematics activities that incorporate interoperating tools from multiple sources.
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Breaking The Mold: Technology-Based Science Assessment In The 21st Century
This article will focus solely on how technology is changing the world of educational testing.
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Globe Year 5 Evaluation: Classroom Practices
Since GLOBE began in 1995, GLOBE students have entered millions of measurements into it' archive and reviewed the resulting patterns and trends using tables, map visualizations, and graphing tools.
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Pasco Probes In The Chemsense Environment: Design Study 1
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Rate-dependent Acoustic Modeling for Large Vocabulary Conversational Speech Recognition
In this paper, we evaluate our approach on a large-vocabulary conversational speech recognition (LVCSR) task over the telephone, with several minimal pair comparisons based on different baseline systems.
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Students Collaborating With Computer Models And Physical Experiments
This study examines the actions and discourse of students in a chemistry laboratory course as they interact with available social and material resources.
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Domain Metatheories: Enabling User-Centric Planning
In this paper, we argue that improved usability requires a new representational layer that captures metatheoretic properties of a planning domain.
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Technology Design As Educational Research: Interweaving Imagination, Inquiry & Impact
New models of the research projects that include technology design are needed that draw upon the idealistic potential of technology, but engage with the practical problems of educational reform in…
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Basic Concepts Of Cryptography
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Bridging the lexical chasm: statistical approaches to answer-finding
This paper investigates whether a machine can automatically learn the task of finding, within a large collection of candidate responses, the answers to questions.