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Spatial Similarity Queries with Logical Operators [chapter]

Konstantinos A. Nedas, Max J. Egenhofer
2003 Lecture Notes in Computer Science  
The second set of methods contributes to a consistent and comprehensive methodology for spatial similarity retrieval in response to complex queries with combinations of logical operators.  ...  This paper develops methods for the retrieval of similar spatial information, in particular when several similarity constraints with logical combinations must be compared and integrated.  ...  Similar results to a query involving relational operators Similarity in Spatial Queries Expressed with Logical Operators Querying a system with logical operators is based on concepts from Boolean algebra  ... 
doi:10.1007/978-3-540-45072-6_25 fatcat:dpnnjp45qnhz7fvmvmj5q67v4u

A Qualitative Representation and Similarity Measurement Method in Geographic Information Retrieval [article]

Yong Gao, Lei Liu, Xing Lin, Yu Liu
2013 arXiv   pre-print
Similarly, spatial information is represented as geo-spatial propositions with the support of geographic knowledge base.  ...  Then the similarity is divided into thematic similarity and spatial similarity.  ...  by logic operators {˄, ˅, ¬}.  ... 
arXiv:1311.4644v1 fatcat:kk35l33lerhm7f6xmjx4vf6c5m

Knowledge-based image retrieval with spatial and temporal constructs

W.W. Chu, Chih-Cheng Hsu, A.F. Cardenas, R.K. Taira
1998 IEEE Transactions on Knowledge and Data Engineering  
Some of t h e p r o b l e m s t h a t m u s t b e addressed include: 1) How do w e c o m m u n i c a t e these n a t u r a l language queries to a c o m p u t e r system?  ...  ., in t h e vic i n i t y of), spatial concepts (e.g., INSIDE, NEARBY, FAR AWAY), a n d t e m p o r a l concepts (e.g., size doub l e d since i n i t i a l diagnosis); 2) W h a t m e t h o d s are u s  ...  Therefore, this provides a way to process queries with similar-to operators.  ... 
doi:10.1109/69.738355 fatcat:7wvntnnf2nbrbflewhkrtina7u

Content-based Image Retrieval by Spatial Similarity

Archana M. Kulkarn, R. C. Joshi
2002 Defence Science Journal  
Similarity-based retrieval of images is an important task in image databases. Most of the user's queries are on retrieving those database images that are spatially similar to a query image.  ...  A content-based image retrieval system that erticiently and effectively retrieves information from a defence image database along with the architecture for retrieving images by spatial similarity is presented  ...  For spatial by nearly half, the insertion and deletion operations similarity queries, various logical representations are simpler, giving better performance in searching. exist, such as 2-D string7, spatial  ... 
doi:10.14429/dsj.52.2183 fatcat:zpsflnbz3nelxgbpvhq6orps6y

A Filter Flow Visual Querying Language and Interface for Spatial Databases

A.J. Morris, A.I. Abdelmoty, B.A. El-Geresy, C.B. Jones
2004 Geoinformatica  
Geometaphors are then spatially arranged, and this speci®es the spatial operator between them.  ...  Filters are used to represent operations on the database and pictorial icons are used throughout the language for ®lters, operators and spatial relations.  ...  Non-spatial operators: With regards to spatial querying, some of the traditional database operators are not speci®ed in the languages [6] .  ... 
doi:10.1023/b:gein.0000017744.85002.4c fatcat:wmtrogzxcnd6la4apbbshrfsrm

Foundation of the DISIMA Image Query Languages

Vincent Oria, M. Tamer Özsu, Paul J. Iglinski
2004 Multimedia tools and applications  
Both languages are declarative and allow the combination of semantic and similarity queries.  ...  This paper summarizes the querying facilities implemented for the DISIMA system and gives their theoretical foundation: the data model and the complementary algebraic operations, the textual query language  ...  The work was conducted while the authors were affiliated with the University of Alberta.  ... 
doi:10.1023/b:mtap.0000031756.10332.9d fatcat:5pvtxbhxhzdvvohbaba73p5b34

Two Data Organizations for Storing Symbolic Images in a Relational Database System [chapter]

Aya Soffer, Hanan Samet
1999 Database Semantics  
The emphasis is on extracting both contextual and spatial information from the raw images. A logical image representation that preserves this information is defined.  ...  Sample queries and execution plans to respond to these queries are described for both organizations. Analytical cost analyses of these execution plans are given.  ...  Query processing and optimization is performed following the same guidelines of relational databases extended with a suitable cost model for accessing spatial indices and performing spatial operations.  ... 
doi:10.1007/978-0-387-35561-0_24 fatcat:jruzxosfpfhsfbk3bksjbat7li

Towards a logical multidimensional model for spatial data warehousing and OLAP

Marcus Costa Sampaio, André Gomes de Sousa, Cláudio de Souza Baptista
2006 Proceedings of the 9th ACM international workshop on Data warehousing and OLAP - DOLAP '06  
This paper proposes a novel logical multidimensional model suitable for SDW, which is implemented on the top of an object-relational database system with support for spatial data.  ...  , by using dynamic maps with zooming, panning, aggregation and other spatial functionalities.  ...  For instance, let us consider an OLAP query, similar to the one in section 3.3 with the exception that there is no spatial window: Tests with and without R-tree index gave the following results: ( Non-indexed  ... 
doi:10.1145/1183512.1183528 dblp:conf/dolap/SampaioSB06 fatcat:idcob6wyljc2fjw7cr27fre6ii

Querying Vague Spatial Objects in Databases with VASA [chapter]

Markus Schneider, Alejandro Pauly
2008 Quality Aspects in Spatial Data Mining  
VASA is defined on the basis of exact models for crisp spatial objects and includes the definitions of vague spatial data types as well as the operations and predicates needed to effectively manipulate  ...  In the context of spatial databases, retrieval and handling of vague spatial objects through querying is critical in exploiting the functionality of the database.  ...  In [18] the operator ~ is used in a similar way to the similar-to operator.  ... 
doi:10.1201/9781420069273.sec1 fatcat:edqil3r4m5cbtgolfjvrlabudy

Integrating symbolic images into a multimedia database system using classification and abstraction approaches

Aya Soffer, Hanan Samet
1998 The VLDB journal  
Schema de nitions and indices that support query speci cations involving spatial as well as contextual constraints are presented.  ...  On the other hand, in the abstraction approach retrieval is on the basis of similarity of feature vector values of these objects.  ...  Query Q2 is then computed by a spatial join operation between the two spatial indices with no need for creating temporary indices as is done in Plan P2C.  ... 
doi:10.1007/s007780050068 fatcat:esqjuoqyxzbexppvsjhn5a7po4

FlexiDex: Flexible Indexing for Similarity Search with Logic-Based Query Models [chapter]

Marcel Zierenberg, Maria Bertram
2013 Lecture Notes in Computer Science  
The flexibility of an indexing approach plays an important role for its applicability, especially for logic-based similarity search.  ...  A flexible approach allows the use of the same precomputed index structure even if query elements like weights, operators, monotonicity or used features of the aggregation function change in the search  ...  Logic-based similarity search depends on the formulation of queries with the help of Boolean operators.  ... 
doi:10.1007/978-3-642-40683-6_21 fatcat:pm47mjpi75bljorke5igrotsb4

Pictorial queries by image similarity

A. Soffer, H. Samet
1996 Proceedings of 13th International Conference on Pattern Recognition  
Two image similarity factors are considered: (1) contextual similarity: how well does the content of one image match that of another. (2) spatial similarity: the relative locations of the matching symbols  ...  The query image is constructed by positioning objects so that the desired locational and spatial constraints hold.  ...  No spatial constraints are specified in these queries. More complex queries may be specified by combining query images with "AND" and "OR" operators.  ... 
doi:10.1109/icpr.1996.546805 dblp:conf/icpr/SofferS96 fatcat:stbp46yhmvby5gzt4iexf4wgty

Querying Uncertain Data in Geospatial Object-relational Databases Using SQL and Fuzzy Sets

R. Ďuračiová
2013 Slovak Journal of Civil Engineering  
This paper deals with uncertainty modeling in spatial object-relational databases by the use of Structured Query Language (SQL).  ...  The fuzzy spatial query approach is applied and tested on a case study with a fundamental database for GIS in Slovakia.  ...  SELECT id, The query above is logically correct and is applicable in all similar situations, but in the case of the lower performance of database systems, a query with the functions GREATEST and LEAST  ... 
doi:10.2478/sjce-2013-0016 fatcat:rcx2szj7hzgotjl3p2xgaswntu

Manipulating spatial data in constraint databases [chapter]

Alberto Belussi, Elisa Bertino, Barbara Catania
1997 Lecture Notes in Computer Science  
The relational algebra can be easily extended to deal with generalized relations. However, such algebra has some limitations when it is used for modeling spatial data.  ...  First of all, there is no explicit way to deal with the set of points representing a spatial object as a whole. Rather, only point-based computations can be performed using this algebra.  ...  A similar consideration holds if Q(t) contains the renaming operator.  ... 
doi:10.1007/3-540-63238-7_27 fatcat:egq3of5pebfargerhxgivzpiyu

Modeling and retrieving images by content

Venkat N. Gudivada, Vijay V. Raghavan
1997 Information Processing & Management  
Similarity retrieval of ICONIC image database. Pattern Recognition, 22(6), 675-682. Leung, C., Hibler, D., & Mwara, N. (1992). Picture retrieval by content description. J.  ...  Similar shape retrieval in shape data management. IEEE Computer, 28 (9) Information Sci., 18, 203-215. Rabitti, E & Stanchev, P. (1987). An approach to image retrieval from large image databases.  ...  These logical features are used to efficiently process various query operators. For example, the 6~-string class is used to process retrieval by spatial similarity queries.  ... 
doi:10.1016/s0306-4573(97)00007-1 fatcat:hi72fakq4zb3xovxomdkqedv5y
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