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Topic Area: Data and Informatics

Displaying records 11 to 20 of 181 records.
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11. Salient Local 3D Features for 3D Shape Retrieval
Topic: Data and Informatics
Published: 4/7/2011
Authors: Afzal A Godil, Asim Wagan
Abstract: In this paper we describe a new formulation for the 3D salient local features based on the voxel grid inspired by the Scale Invariant Feature Transform (SIFT). We use it to identify the salient keypoints (invariant points) on a 3D voxelized model and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907645

12. NIST Workshop on Ontology Evaluation (NISTIR 7774)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7774
Topic: Data and Informatics
Published: 4/1/2011
Authors: Ram D Sriram, Conrad E Bock, Fabian M. Neuhaus, Evan K Wallace, Mary C Brady, Mark Musen, Joanne Luciano
Abstract: The National Institute for Standards and Technology sponsored a workshop in October, 2007, on the subject of ontology evaluation. An international group of invited experts met for two days to discuss problems in measuring ontology quality. The ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907201

13. A New Analysis of the False-Positive Rate of a Bloom Filter
Topic: Data and Informatics
Published: 10/15/2010
Authors: Ken Christensen, Allen L Roginsky, Miguel Jimeno
Abstract: A Bloom filter is a space-efficient data structure used for probabilistic set membership testing. When testing an object for set membership, a Bloom filter may give a false positive. The analysis of the false positive rate is key to understanding the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903775

14. Further Studies of Bootstrap Variability for ROC Analysis on Large Datasets
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7730
Topic: Data and Informatics
Published: 10/11/2010
Authors: Jin Chu Wu, Alvin Martin, Raghu N Kacker
Abstract: The nonparametric two-sample bootstrap is successfully applied to computing the measurement uncertainties in receiver operating characteristic (ROC) analysis on large datasets in areas such as biometrics, speaker recognition system, etc. To determine ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906977

15. Validation of Two-Sample Bootstrap in ROC Analysis on Large Datasets Using AURC
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7733
Topic: Data and Informatics
Published: 10/11/2010
Authors: Jin Chu Wu, Alvin Martin, Raghu N Kacker
Abstract: Sampling variability can result in uncertainties of measures. The nonparametric two-sample bootstrap method has been used to compute uncertainties of measures in receiver operating characteristic (ROC) analysis on large datasets, such as the standard ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906231

16. Measurement Uncertainties in Speaker Recognition Evaluation
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7722
Topic: Data and Informatics
Published: 9/15/2010
Authors: Jin Chu Wu, Alvin Martin, Craig Stuart Greenberg, Raghu N Kacker
Abstract: The speaker recognition evaluation is an ongoing series of evaluations conducted by NIST. A detection cost function is computed over the sequence of trials provided and used for all speaker detection tests while measuring speaker detection performanc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906230

17. SHREC'10 Track - Range Scan Retrieval
Topic: Data and Informatics
Published: 5/2/2010
Authors: Helin Dutagaci, Afzal A Godil, Chun Pan (Benny) Cheung
Abstract: The SHREC 10 Shape Retrieval Contest of Range Scans aims at comparing algorithms that match a range scan to complete 3D models in a target database. The queries are range scans of real objects, and the objective is to retrieve complete 3D models that ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905271

18. View subspaces for indexing and retrieval of 3D models
Topic: Data and Informatics
Published: 1/21/2010
Authors: Helin Dutagaci, Afzal A Godil, Bulent Sankur, Yucel Yemez
Abstract: View-based indexing schemes for 3D object retrieval is gaining popularity since they provide good retrieval results. These schemes are coherent with the theory that humans recognize objects based on their 2D appearances. The view-based techniques als ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904752

19. Climbing Mount Probable: Mutation as a Cause of Nonrandomness in Evolution
Topic: Data and Informatics
Published: 10/1/2009
Author: Arlin B Stoltzfus
Abstract: Genomes differ systematically in Guanine-plus-Cytosine (GC) content. GC-rich genomes encode proteins enriched in amino acids with GC-rich codons, such as Glycine (with codons GGT, GGC, GGA, GGG), while AT-rich genomes are enriched in amino acids wit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830573

20. Improving Data Quality in Embedded Sensor Systems for APC
Topic: Data and Informatics
Published: 9/28/2009
Authors: Julien Marc Amelot, YaShian Li-Baboud
Abstract: Achieving next-generation factory (NGF) goals has been an industry challenge for APC applications to acquire a sufficient level of data quality to maximize the benefits of automation. For example, it is difficult to get accurate timestamps because se ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903569



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