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Minimal spatio-temporal database repairs

Tobias Emrich, Hans-Peter Kriegel, Markus Mauder, Matthias Renz, Goce Trajcevski, Andreas Züfle
2013 Proceedings of the 21st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems - SIGSPATIAL'13  
This work addresses the problem of efficient detection and fixing of inconsistencies in Spatio-Temporal Databases.  ...  The main reason is that spatio-temporal phenomena are continuous, but their database representations are discrete.  ...  Probabilistic Spatio-Temporal Database Repairs: The recently published approach of [12] aims at repairing probabilistic spatio-temporal databases as defined in [13] .  ... 
doi:10.1145/2525314.2525468 dblp:conf/gis/EmrichKMRTZ13 fatcat:nvqlxdyllzhxrm6ejmucypi3va

Repairs and Consistent Answers for Inconsistent Probabilistic Spatio-Temporal Databases [chapter]

Francesco Parisi, John Grant
2014 Lecture Notes in Computer Science  
A 1 = loc(id 1 , Inconsistency in probabilistic spatio-temporal data Recognizing process getting SPOT atoms not error-free Data coming from different sensors may be inconsistent (i.e., entailing that  ...  Definition (PU-repair) A PU-repair for a SPOT database D is a consistent SPOT database D consisting of a probability-interval update atom a for each a ∈ D and s.t.  ...  of the spatio-temporal integrity constraints (that we'll present tomorrow morning) All the previous works on probabilistic spatio-temporal DBs assume that the database is consistent We introduced database  ... 
doi:10.1007/978-3-319-11508-5_22 fatcat:y63s7l25t5dvjpu4veubejqdxy

Dimensional Inconsistency Measures and Postulates in Spatio-Temporal Databases

John Grant, Maria Vanina Martinez, Cristian Molinaro, Francesco Parisi
2021 The Journal of Artificial Intelligence Research  
We then analyze their behavior w.r.t. common postulates defined for classical propositional knowledge bases, and find that the latter are not suitable for spatio-temporal databases, in that the proposed  ...  Often spatio-temporal data arising from such applications turn out to be inconsistent, i.e., representing an impossible situation in the real world.  ...  Spatio-Temporal Databases This section introduces the syntax and semantics of Spatio-Temporal (ST) Databases (DBs).  ... 
doi:10.1613/jair.1.12435 fatcat:w5mbl25nevehfbvydq3uo6cbpu

Video Completion Using Hierarchical Motion Estimation and Color Compensation

Jin Hong Kim, Rae Hong Park, Jino Lee
2013 International Journal of Computer Graphics & Animation  
First of all, we construct spatio-temporal Gaussian pyramid for reducing the computation time. We estimate the motion of the input video using color information of each pyramid level.  ...  Video completion is used for repairing damaged or missing data in a video sequence. This paper proposes a video completion method using hierarchical motion estimation and color compensation.  ...  Using spatio-temporal Gaussian pyramid, the computation time of searching source patch can be reduced.  ... 
doi:10.5121/ijcga.2013.3102 fatcat:cmwga7zlnrfcrm4rqvozq6qsje

Smart Maintenance Framework Based on Spatio-Visual Computing: The Case of Aircraft MRO [chapter]

Polina Bortsova, Peter Panfilov
2021 DAAAM Proceedings  
The main object of the study is a new integrated spatio-visual framework for smart MRO service of aircraft engines that includes technology and software solutions in support of operations at different  ...  to increasing the value proposition of management information systems of aviation organization through integrated spatial and visual computing solutions while using the domain of aircraft maintenance, repair  ...  The science of spatial computing that cover among others the problems of spatio-temporal prediction, working with qualitative spatio-temporal data and development of spatial and spatio-temporal computing  ... 
doi:10.2507/32nd.daaam.proceedings.095 fatcat:74teum5uxvcqnibebergi7dity

Transmission line unavailability due to correlated threat exposure

Erlend Sando Kiel, Gerd Hovin Kjolle
2019 2019 IEEE Milan PowerTech  
Spatio-temporal correlation in probability of failure for components can cause blackouts to occur more often than anticipated.  ...  The database contains information on historical failures of components, delivery point interruptions, and restoration and repair times.  ...  U OS = n t=1,t∈OS u t y (11) Spatio-temporal correlations and the associated failure bunching come into play for second order contingencies.  ... 
doi:10.1109/ptc.2019.8810845 fatcat:zagrwu4wj5aj5mvu7znxautjlu

ICDE conference 2015 detailed author index

2015 2015 IEEE 31st International Conference on Data Engineering  
Approach Wang, Jianyong 1561 StreamCube: Hierarchical Spatio-Temporal Hashtag Clustering for Event Exploration over the Twitter Stream Wang, Jin 519 Two Birds with One Stone: An Efficient Hierarchical  ...  Subscriptions [Search] A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Feng, Wei 1561 StreamCube: Hierarchical Spatio-Temporal Hashtag Clustering for Event Exploration over the Twitter Stream  ... 
doi:10.1109/icde.2015.7113260 fatcat:ep7pomkm55f45j33tkpoc5asim

A Survey of Modelling Trends in Temporal GIS

Willington Siabato, Christophe Claramunt, Sergio Ilarri, Miguel Angel Manso-Callejo
2018 ACM Computing Surveys  
This article offers an overview of: (i) the origins and history of Temporal Geographic Information Systems (T-GIS); (ii) relevant spatio-temporal data models proposed; (iii) the evolution of spatio-temporal  ...  The main achievements of spatio-temporal modelling in the field of Geographic Information Science that spans over the past three decades are surveyed.  ...  However, research topics have mostly been oriented to databases and spatio-temporal databases.  ... 
doi:10.1145/3141772 fatcat:ajbghpnedjau7ma5txucztye7q

Gait metrics analysis utilizing single-point inertial measurement units: a systematic review

Ralph Jasper Mobbs, Jordan Perring, Suresh Mahendra Raj, Monish Maharaj, Nicole Kah Mun Yoong, Luke Wicent Sy, Rannulu Dineth Fonseka, Pragadesh Natarajan, Wen Jie Choy
2021 mHealth  
Four databases were systematically searched to obtain relevant journal articles focusing on the measurement of gait metrics using single-point IMU sensors.  ...  The Preferred Reporting Items for Systematic Reviews and Meta-Analyses Guidelines (PRISMA) were followed utilizing the following databases: PubMed; MEDLINE; EMBASE and Cochrane.  ...  Linear measures of spatio-temporal variability and asymmetry are subsequently determined from mean spatio-temporal values, commonly expressed as the standard deviation or coefficient of variation and the  ... 
doi:10.21037/mhealth-21-17 pmid:35178440 pmcid:PMC8800203 fatcat:qe5wlmkyqbgwjdmb3ub5gs43ui

Context-aware Telco Outdoor Localization [article]

Yige Zhang, Weixiong Rao, Mingxuan Yuan, Jia Zeng, Pan Hui
2021 arXiv   pre-print
Unlike most existing works to detect and repair every flawed MR sample independently, we instead take into account spatio-temporal locality of MR locations and exploit trajectory context to detect and  ...  repair flawed positions.  ...  the repair objective is to minimize the change between initial database and repaired database.  ... 
arXiv:2108.10651v1 fatcat:4y6h7ttqprazxnl5dvgmt2qbtq

Spatio–Temporal Regularity Flow (SPREF): Its Estimation and Applications

Orkun Alatas, Pingkun Yan, Mubarak Shah
2007 IEEE transactions on circuits and systems for video technology (Print)  
Index Terms-Cross-sectional parallelism, regularity modeling, spatio-temporal feature, video compression, video inpainting.  ...  We propose to model the directions of regular variations with a 3-D vector field, which is referred to as spatio-temporal regularity flow (SPREF).  ...  Their method repairs the video by searching the missing part blindly in global spatio-temporal space, which is very time consuming.  ... 
doi:10.1109/tcsvt.2007.893832 fatcat:2bls6fccfjdfdltcqoqpoayinq

DataFog: Towards a Holistic Data Management Platform for the IoT Age at the Network Edge

Harshit Gupta, Zhuangdi Xu, Umakishore Ramachandran
2018 USENIX Workshop on Hot Topics in Edge Computing  
We identify key challenges towards building such a database over a widely geo-distributed and heterogeneous edge computing environment.  ...  Traditional time-series databases being Cloud-based are not suitable for meeting the low-latency requirement of such geo-distributed smart services.  ...  Spatio-temporal locality in range queries : For each query, there is a spatio-temporal region such that data-items belonging to that region are more relevant than other data-items.  ... 
dblp:conf/hotedge/GuptaXR18 fatcat:xuput736yvd7jnagdho52jpiqy

A Survey on Video Inpainting

Anu RachelAbraham, A. Kethsy Prabhavathy, J. Devi Shree
2012 International Journal of Computer Applications  
Here the repaired video preserves scene structure spatio-temporal consistency and variable illumination but it cannot repair shadows of a damaged object and there are chances of occurrence of incorrect  ...  Video repairing under variable illumination using cyclic motions. 2006 Variable illumination& spatio-temporal consistency is preserved. Works only for periodic motion.  ... 
doi:10.5120/8923-2761 fatcat:ntmlgqhzbrfsbayhf7i5x5jnqe

A Framework for Data Mining in Wind Power Time Series [chapter]

Oliver Kramer, Fabian Gieseke, Justin Heinermann, Jendrik Poloczek, Nils André Treiber
2014 Lecture Notes in Computer Science  
The resulting databases consist of huge amounts of wind energy time series data that can be used for prediction, controlling, and planning purposes.  ...  The fast growing infrastructure of wind turbines can be seen as large sensor system that screens the wind energy at a high temporal and spatial resolution.  ...  Can spatio-temporal relations be exploited for better data repair?  ... 
doi:10.1007/978-3-319-13290-7_8 fatcat:uot2kbzhqja7njgkye4y54rbqa

A Constraint-based Mission Planning Approach for Reconfigurable Multi-Robot Systems

Thomas M Roehr
2018 Inteligencia Artificial  
a constraint-based mission planning approach, and presents a set of revised definitions for reconfigurable multi-robot systems including the representation of the planning problem using spatially and temporally  ...  This lower bound represents a set of minimal general agents which is translated into the spatio-temporal requirement's CSP variable domain.  ...  A spatio-temporal requirement is a spatio-temporally qualified expression (stqe) s which describes the functional requirements and agent instance requirements for a given time-interval and a particular  ... 
doi:10.4114/intartif.vol21iss62pp25-39 fatcat:bnhwrph73ba6fbp4nub6us73gm
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