Geospatial-Temporal Semantic Graphs for Automated Wide-Area Search
| العنوان: | Geospatial-Temporal Semantic Graphs for Automated Wide-Area Search |
|---|---|
| المؤلفون: | Brost, Randolph C., Carroll, Michelle, Dennison, Debbie, Goforth, John, McLendon III, William C., Morrow, James D., O' Neil-Dunne, Jarlath, Parekh, Ojas D., Patterson, Andrew John, Rintoul, Mark Daniel, Strip, David R., Woodbridge, Diane M.-K. |
| سنة النشر: | 2024 |
| المجموعة: | SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
| مصطلحات موضوعية: | 97 MATHEMATICS AND COMPUTING |
| الوصف: | We address the problem of wide-area search of overhead imagery. Given a time sequence of overhead images, we construct a geospatial-temporal semantic graph, which expresses the complex continuous information in the overhead images in a discrete searchable form, including explicit modeling of changes seen from one image to the next. We can then express desired search goals as a template graph, and search for matches using simple and efficient graph search algorithms. This produces a set of potential matches which provide cues for where to examine the imagery in detail, applying human expertise to determine which matches are correct. We include a match quality metric that scores the matches according to how well they match the stated search goal. This enables matches to be presented in sorted order with the best matches first, similar to the results returned by a web search engine. We present an evaluation of the method applied to several examples and data sets, and show that it can be used successfully for some problems. We also remark on several limitations of the method and note additional work needed to improve its scope and robustness. Approved for public release; further dissemination unlimited. |
| نوع الوثيقة: | other/unknown material |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| Relation: | http://www.osti.gov/servlets/purl/1527318; https://www.osti.gov/biblio/1527318; https://doi.org/10.2172/1527318 |
| DOI: | 10.2172/1527318 |
| الاتاحة: | http://www.osti.gov/servlets/purl/1527318 https://www.osti.gov/biblio/1527318 https://doi.org/10.2172/1527318 |
| رقم الانضمام: | edsbas.A8912081 |
| قاعدة البيانات: | BASE |
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