Author: SRI International
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Reference-Free Objective Quality Metrics for MPEG-Coded Video
In this paper, we propose a reference-free video quality metric for MPEG coded videos. It predicts subjective quality ratings using both reference-free MPEG artifact measures and MPEG system parameters (known or estimated).
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Fostering Collaboration with a Semantic Index over Textual Contributions
We are exploring new approaches to facilitating effective collaboration that remove or reduce common barriers and that exploit opportunities to encourage more effective collaboration, including transcending the cognitive biases of the participants.
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SRI’s 2004 NIST Speaker Recognition Evaluation System
This paper describes our recent efforts in exploring longer-range features and their statistical modeling techniques for speaker recognition. In particular, we describe a system that uses discriminant features from cepstral coefficients, and systems that use discriminant models from word n-grams and syllable-based NERF n-grams.
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An Introduction to Padi Task Templates (Padi Technical Report 3)
Principled Assessment Designs for Inquiry (PADI) is a project supported by the National Science Foundation to improve the assessment of inquiry in science learning.
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Style consistent classification of isogenous patterns
In many applications of pattern recognition, patterns appear together in groups (fields) that have a common origin.
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Designs For Assessing Foundational Data Literacy
Geoscience education could benefit from assessment instruments that validly and reliably assess students’ foundational data literacy skills, using appropriate item formats that provide valid and reliable evidence of different levels of skill and understanding.
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Teaching With Student Response System Technology: A Survey Of K-12 Teachers
The current questionnaire study is a first step toward understanding how teachers in K-12 settings integrate student response systems into their teaching.
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The Role of Higher-Order Constructs in the Inexact Matching of Semantic Graphs
This paper reports the results of an experimental analysis of higher-order constructs in graphical patterns and their effect on pattern matching efficiency.
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Evaluation Of The Intel Learn Program: Study Of A Design For The Scalability Of Digital Inclusion Programming
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Jason Academy Summative Program Evaluation Final Report
SRI conducted an evaluation study of JASON Academy courses to ascertain whether they are effective in increasing teachers’ content knowledge on topics that they must teach and that are part of most state standards and curriculum frameworks.
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Activity Recognition and Abnormality Detection with the Switching Hidden Semi-Markov model
We introduce the Switching Hidden Semi-Markov Model (S-HSMM), a two-layered extension of the hidden semi-Markov model (HSMM) for the modeling task.
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A Quasi-Experimental Study Of Student Conceptual Understanding And Inquiry Skills In Water Science