Erscheinungsdatum: 07.02.2019, Medium: Buch, Einband: Gebunden, Titel: Scalable Processing of Spatial-Keyword Queries, Autor: Mahmood, Ahmed R. // Aref, Walid G., Redaktion: Jagadish, H. V., Verlag: Morgan & Claypool Publishers, Sprache: Englisch, Schlagworte: COMPUTERS // Data Processing // Datenerfassung und // analyse, Rubrik: Informatik, Seiten: 118, Informationen: HC gerader Rücken kaschiert, Gewicht: 432 gr, Verkäufer: averdo
Erscheinungsdatum: 29.07.2017, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: Hybrid Index for Range Approximate Keyword Search on Spatial Database, Autor: Aung, Su Nandar, Verlag: LAP Lambert Academic Publishing, Sprache: Englisch, Rubrik: Informatik // EDV, Sonstiges, Seiten: 68, Informationen: Paperback, Gewicht: 118 gr, Verkäufer: averdo
Hybrid Index for Range Approximate Keyword Search on Spatial Database ab 35.99 € als Taschenbuch: . Aus dem Bereich: Bücher, English, International, Gebundene Ausgaben,
This research work mainly focuses on spatial keyword search on spatial database. Specially, in order to answer spatial keyword query efficiently, hybrid index that combines location and text data called geo-textual index structure is required. The main challenge is the combination of textual and spatial indices. This system intends to create geo-textual index to reduce unnecessary cost in processing spatial keyword queries and searching time for required results. Spatial keyword search algorithm is proposed to answer range keyword query. In the keyword searching process, errors and inconsistency can exist in user's typing keyword. To handle such type of errors, approximate string search method is used in this system. Hamming Distance approach is modified to answer keyword efficiently even if the two strings do not have the same length. This modified Hamming Distance takes the same string matching time with the original but the result are more accurate than the original.
By recirculating light in a nonlinear propagation medium, the nonlinear optical cavity allows for countless options of light transformation and manipulation. In passive media, optical bistability and frequency conversion are central figures. In active media, laser light can be generated with versatile underlying dynamics. Emphasizing on ultrafast dynamics, the vital arena for the information technology, the soliton is a common conceptual keyword, thriving into its modern developments with the closely related denominations of dissipative solitons and cavity solitons. Recent technological breakthroughs in optical cavities, from micro-resonators to ultra-long fiber cavities, have entitled the exploration of nonlinear optical dynamics over unprecedented spatial and temporal orders of magnitude. By gathering key contributions by renowned experts, this book aims at bridging the gap between recent research topics with a view to foster cross-fertilization between research areas and stimulating creative optical engineering design.
This book constitutes the refereed proceedings of the 14th International Symposium on Spatial and Temporal Databases, SSTD 2015, held in Hong Kong, China, in August 2015.The 24 revised full papers together with 8 demos presented were carefully reviewed and selected from 64 submissions. The conference program has the scope on following subjects: reachability query and path query, reverse query and indexing, navigation and routing, trajectory analysis, spatio-temporal approaches, privacy and matching, similarity search and pattern, keyword and pattern.