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Toward Heterogeneous Cardinal Direction Calculus [chapter]

Yohei Kurata, Hui Shi
2009 Lecture Notes in Computer Science  
We are, therefore, developing heterogeneous cardinal direction calculus, which allows reasoning on cardinal direction relations without regard to object types.  ...  Cardinal direction relations are binary spatial relations determined under an extrinsically-defined direction system (e.g., north of).  ...  Acknowledgment This work is supported by DFG (Deutsche Forschungsgemeinschaft) through the Collaborative Research Center SFB/TR 8 Spatial Cognition-Strategic Project "Spatial Calculi for Heterogeneous  ... 
doi:10.1007/978-3-642-04617-9_57 fatcat:h5tu5x445bdhrathndxtovhye4

Discovering Spatial and Temporal Links among RDF Data

Panayiotis Smeros, Manolis Koubarakis
2016 The Web Conference  
the new features, allows data publishers to generate a wide variety of spatial, temporal and spatiotemporal relations between their data and other Linked Open Data, dealing effectively with the common heterogeneity  ...  Direction Calculus.  ...  This calculus concentrates on cardinal direction relations [11, 27] which are used to describe how regions of space are placed relative to one another e.g., region a is north of region b (Figure 1 (  ... 
dblp:conf/www/SmerosK16 fatcat:2dpdtouxsfem7iw6gh2f5jhblm

Casl Specifications of Qualitative Calculi [chapter]

Stefan Wölfl, Till Mossakowski
2005 Lecture Notes in Computer Science  
Examples of spatial calculi include mereotopological calculi, Frank's cardinal direction calculus, Freksa's double cross calculus, Egenhofer and Franzosa's intersection calculi, and Randell, Cui, and Cohn's  ...  And vice versa, intervals can be used to represent spatial objects that feature an internal direction.  ...  For this reason the 2-point calculus is often referred to as cardinal direction calculus in the literature.  ... 
doi:10.1007/11556114_13 fatcat:7xuhplmsfbftbf7cxrcj6td6qe

The pre-history of Kenneth Arrow's social choice and individual values

Patrick Suppes
2005 Social Choice and Welfare  
But Hotellings course in mathematical economics was not at all oriented toward the axiomatic approach.  ...  In his effort to break the bonds of traditional logic and to expand the limits of logical inquiry, he directed his attention to the general concept of relations and fully recognized its significance.  ... 
doi:10.1007/s00355-005-0006-x fatcat:npumfirymfcmhkfggfbhrqrmgm

Geospatial semantics and linked spatiotemporal data – Past, present, and future

Krzysztof Janowicz, Simon Scheider, Todd Pehle, Glen Hart
2012 Semantic Web Journal  
The vast heterogeneity of the involved disciplines ranging from the natural sciences to the social sciences introduces new challenges in terms of interoperability.  ...  In this editorial, we outline the research field of geospatial semantics, highlight major research directions and trends, and glance at future challenges.  ...  A promising direction of research is to combine qualitative reasoners with 1 Prominent spatial calculi are mereotopological calculi, Frank's cardinal direction calculus, Freksa's double cross calculus,  ... 
doi:10.3233/sw-2012-0077 fatcat:zofsat7qefbcbcmdpfw6hurapi

Towards a Moral Compass to Guide Sustainability Transformations in a High-End Climate Change World

Marco Grasso, J. David Tàbara
2019 Sustainability  
cardinal direction.  ...  world, governance arrangements should aim at acquiring and maintaining the Integrity cardinal direction, as well as autonomy assured by the Independence cardinal direction.  ... 
doi:10.3390/su11102971 fatcat:uphi55jq4rcfdavl6pt3svaxge

A discrete Hidden Markov models recognition module for temporal series: Application to real-time 3D hand gestures

Yannick Dennemont, Guillaume Bouyer, Samir Otmane, Malik Mallem
2012 2012 3rd International Conference on Image Processing Theory, Tools and Applications (IPTA)  
Orbs can be on a cardinal point or in the screen center. The user should perform a translation gesture toward an orb situated on a cardinal point to succeed.  ...  When reducing the calculus frequency, the results rise of a little more than 10%.  ... 
doi:10.1109/ipta.2012.6469509 dblp:conf/ipta/DennemontBOM12 fatcat:4v4okawsyfb6peun6x6pi2uowm

Integrating a Program Design Calculus and a Subset of UML

R. F. Paige
1999 Computer journal  
The two methods are integrated using a meta-method for formal method integration based on heterogeneous notations.  ...  The predicative programming design calculus is integrated with an object-oriented method that uses a subset of the Uni ed Modelling Language.  ...  D UML notation allows annotation of aggregations with cardinality constraints.  ... 
doi:10.1093/comjnl/42.2.82 fatcat:sabdbus63jfidfgid6puguyhdu

Fine-grained Qualitative Spatial Reasoning about Point Positions [article]

Sören Schwertfeger
2019 arXiv   pre-print
Ways of improving the complexity of the composition are shown and an implementation of the calculus demonstrates its capabilities.  ...  A new calculus for representing and reasoning about qualitative spatial orientation and distances is being designed. It supports an arbitrary level of granularity over ternary relations of points.  ...  than the cardinal direction calculus (see Section 2.3.3).  ... 
arXiv:1911.06543v1 fatcat:lf67sghtszaylhe7jneug7npi4

Causal Inference and Data Fusion in Econometrics [article]

Paul Hünermund
2021 arXiv   pre-print
limited to non-random, selection-biased samples, causal effects need to be learned from surrogate experiments with imperfect compliance, and causal knowledge has to be extrapolated across structurally heterogeneous  ...  framework proposed by Pearl (1995), the artificial intelligence (AI) literature has developed a wide array of techniques for causal learning that allow to leverage information from various imperfect, heterogeneous  ...  Nodes in G correspond to endogenous variables in V , and directed edges point from the set of parent nodes P A i towards V i . 6 An example is given in Figure 2a , which refers to the following SCM: z  ... 
arXiv:1912.09104v3 fatcat:dlnkjghgnneyxcnckp5bqs2yge

Evaluation of Quality for Semi-Structured Database System

Rita Ganguly, Department of Computer Applications, Anirban Sarkar, Dr.B.C.Roy Engineering College, Durgapur: 713206, West Bengal, India
2019 International Journal of Computer Network and Information Security  
The framework comprised of direct and indirect metrics for the purpose of quality evaluation. The framework facilities a double-fold view point using a set of quality measurement.  ...  The quality evaluation of transactional calculus for semi-structured database system develops metrics for data quality.  ...  It's specifying the irregular and heterogeneous structure, hierarchical and non-hierarchical relations, narray relationships, cardinality and participation constraint of instances with all details that  ... 
doi:10.5815/ijcnis.2019.12.04 fatcat:cu26cyptd5epdisevaarfwwq5u

A Geo-semantics Flyby [chapter]

Krzysztof Janowicz, Simon Scheider, Benjamin Adams
2013 Lecture Notes in Computer Science  
This makes ontologies, semantic annotations, and reasoning support essential ingredients towards a Geospatial Semantic Web.  ...  Geo-data is highly heterogeneous and ranges from qualitative interviews and thematic maps to satellite imagery and complex simulations.  ...  Prominent spatial calculi are mereotopological calculi, Frank's cardinal direction calculus, Freksa's double cross calculus, Egenhofer and Franzosa's 4-and 9-intersection calculi, Ligozat's flip-flop calculus  ... 
doi:10.1007/978-3-642-39784-4_6 fatcat:gtbsy52rrzgohg4j3agykxtr5i

Semantics-Aware Services for the Mobile Computing Environment [chapter]

Nikolaos Georgantas, Sonia Ben Mokhtar, Ferda Tartanoglu, Valérie Issarny
2005 Lecture Notes in Computer Science  
On the other hand, the Semantic Web introduces a promising approach towards the integration of heterogeneous components; current semantics-based approaches are, however, restricted to application-level  ...  Having -independently -defined capabilities Get and Buy as direct or less direct descendants of class Purchase enables the assertion of their conformance.  ...  More expressive than RDF Schema, it adds more vocabulary for describing properties and classes (such as disjointness, cardinality, equivalence).  ... 
doi:10.1007/11556169_1 fatcat:hv7gouc2bzcwpg7gvca7kr4plm

Broader terms curriculum mapping: Using natural language processing and visual-supported communication to create representative program planning experiences [article]

Rogério Duarte, Ângela Lacerda Nobre, Fernando Pimentel, Marc Jacquinet
2022 arXiv   pre-print
Steer programming skills towards high-level languages with practical use. iii.  ...  The strength of the links-the cardinality of possible 2-walks-is given both by numbers and by edge widths.  ... 
arXiv:2102.04811v3 fatcat:rruupto6kvgw3ihvkxzbdifp44

Evolutionary Query Optimization For Heterogeneous Distributed Database Systems

Reza Ghaemi, Amin Milani Fard, Hamid Tabatabaee, Mahdi Sadeghizadeh
2008 Zenodo  
of cardinalities.  ...  c) Fitness function Defining fitness function is one of the most important steps in designing a GA-based method, which can guide the search toward the best solution.  ... 
doi:10.5281/zenodo.1080054 fatcat:kuvp4xvlurf7rfviezzexnoaca
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