Publications
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Graphical Manipulation of Evidence in Structured Arguments
A semiautomated approach to evidential reasoning uses template-based structured argumentation. Graphical depictions convey lines of reasoning, from evidence through to conclusions.
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Effectiveness of Reading and Mathematics Software Products: Findings from the First Student Cohort
The study used an experimental design to assess the effects of technology products, with volunteering teachers randomly assigned to use or not use selected products.
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Explaining Task Processing in Cognitive Assistants that Learn
We will describe the ICEE (Integrated Cognitive Explanation Environment) explanation system and its approach to explaining task reasoning.
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I Think It Makes Me Not Give Up On Dreams. What Students Say About Hero
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National Early Intervention Longitudinal Study (NEILS) Final Report
This National Early Intervention Longitudinal Study (NEILS) report presents the key findings from a national longitudinal study. This report summarizes some of the key findings from this 10-year study and…
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Teaching and California’s Future: California’s Teaching Force 2006: Key Issues and Trends
This annual report discusses trends in the supply, demand, and distribution of California teachers; details the impact of state policy changes on the teacher development system; and highlights themes that…
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Model Adaptation for Dialog Act Tagging
In this study we used the ICSI meeting corpus with high-level meeting recognition dialog act (MRDA) tags, that is, question, statement, backchannel, disruptions, and floor grabbers/holders. We performed controlled adaptation…
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Model Adaptation for Sentence Segmentation from Speech
This paper analyzes various methods to adapt sentence segmentation models trained on conversational telephone speech (CTS) to meeting style conversations. The sentence segmentation model trained using a large amount of…
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A Case Study in Engineering a Knowledge Base for an Intelligent Personal Assistant
We present a case study in engineering a large knowledge base (KB) to meet the requirements of a personal assistant. We discuss our KB development methodology and the engineering challenges…
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Infusing IT/STEM Skill Standards in Informal ITEST Learning
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A Study in Machine Learning from Imbalanced Data for Sentence Boundary Detection in Speech
We have constructed a hidden Markov model (HMM) system to detect sentence boundaries that uses both prosodic and textual information. Since there are more non-sentence boundaries than sentence boundaries in…
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Morphology-based Language Modeling for Conversational Arabic Speech Recognition
In this paper, we investigate improvements in Arabic language modeling by developing various morphology-based language models. We present four different approaches to morphology-based language modeling, including a novel technique called…