Publications
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Pruning non-informative text through non-expert annotations to improve sentiment classification
In this paper, we present a highly effective procedure for using crowd-sourcing techniques for labeling informative and non-informative information regarding the sentiment expressed in a sentence.
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Want to be retweeted? Large scale analytics on factors impacting retweet in Twitter network
In this paper, we examine a number of features that might affect retweetability of tweets.
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Termination of Rewriting with Right-Flat Rules Modulo Permutative Theories
We present decidability results for termination of classes of term rewriting systems modulo permutative theories.
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Spoken Proper Name Retrieval for Limited Resource Languages Using Multilingual Hybrid Representations
In this paper, we present our research efforts towards multilingual spoken information retrieval with limitations in acoustic training data.
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Detection, Correlation, and Visualization of Attacks Against Critical Infrastructure Systems
We present some results of the Detection and Analysis of Threats to the Energy Sector project, wherein we adapted and developed several intrusion detection technologies for control systems.
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High-Enthalpy Test Environments, Flow Modeling and in Situ Diagnostics for Characterizing Ultra-High Temperature Ceramics
We describe the test environments generated by two types of these ground test facilities – subsonic inductively coupled plasma tunnels and supersonic arc-jet tunnels – and discuss the important roles…
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Synthesis of Carbon-Rich Hafnia Thin Films By Pulsed Laser Deposition
We explored direct synthesis of carbon-rich hafnia, which is known to form as a compact interlayer in the oxide scales of oxidized hafnium carbide.
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Scaffolding Group Explanation and Feedback with Handheld Technology: Impact on Students’ Mathematics Learning
We compared group and individual learning feedback, using two technologies: (1) Technology-mediated, Peer-Assisted Learning and (2) a popular desktop product, which provides feedback to individual students as they solve fractions…
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Decameter Structure in Heater-Induced Airglow at the High Frequency Active Auroral Research Program Facility
On 28 October 2008, small-scale rayed artificial airglow was observed at the High frequency Active Auroral Research Program (HAARP) heating facility by the HAARP telescopic imager.
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Design and Performance of Single Photon APD Focal Plane Arrays for 3-D LADAR Imaging
We describe the design, fabrication, and performance of focal plane arrays (FPAs) for use in 3-D LADAR imaging applications requiring single photon sensitivity.
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Scaffolding Group Explanation and Feedback with Handheld Technology: Impact on Students’ Mathematics Learning
We compared group and individual feedback, using two technologies: Technology-mediated, Peer-Assisted Learning (TechPALS), and a popular desktop product, which provides feedback to individual students as they solve fractions problems individually.
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Composite Imaging of Auroral Forms and Convective Flows During a Substorm Cycle
Measurements obtained with the electronically steerable Poker Flat Incoherent Scatter Radar (PFISR) and collocated all-sky camera were used to construct composite images of ionospheric convective flows and auroral forms.