37,310 Hits in 6.7 sec

Continuous range monitoring of mobile objects in road networks

Dragan Stojanovic, Apostolos N. Papadopoulos, Bratislav Predic, Slobodanka Djordjevic-Kajan, Alexandros Nanopoulos
2008 Data & Knowledge Engineering  
We propose a method for continuous range query processing for different types of queries, characterized by mobility of objects and/or queries which all follow paths in an underlying spatial network.  ...  The method assumes an available 2D indexing scheme for indexing spatial network data.  ...  By indexing queries not mobile objects, Q-index method avoids frequent updates of the index structure and thus expensive maintenance of this structure.  ... 
doi:10.1016/j.datak.2007.06.021 fatcat:oxhjrua2jvhtxa276rlasyrqdq

Sensing for Mobile Objects [chapter]

Nicholas D. Larusso, Ambuj K. Singh
2012 Managing and Mining Sensor Data  
Next, we review the problem of tracking for mobile objects to estimate an object's location given a sequence of noisy observations.  ...  We focus our survey on three main areas: (i) data management, which includes indexing and querying mobile objects, (ii) tracking, making use of noisy location observations to infer an object's actual or  ...  In [104] , the authors present both a movement model for mobile objects with uncertainty as well as an index structure for efficient query processing.  ... 
doi:10.1007/978-1-4614-6309-2_10 fatcat:b6xsuttztrfcnk5grrxpnged3a

A Novel Dual-Index Design to Efficiently Support Snapshot Location-Based Query Processing in Mobile Environments

Haojun Wang, Roger Zimmermann
2010 IEEE Transactions on Mobile Computing  
MOVNet's dual-index design utilizes an on-disk R-tree to store the network connectivities and an in-memory grid structure to maintain moving object position updates.  ...  To cope with this challenge, we present a framework that supports location-based services on MOVing objects in road Networks (MOVNet, for short) [26] .  ...  Dual-Indexing Structure Design To record the connectivity and coordinates of vertices in stationary networks, MOVNet utilizes an on-disk R*-tree, a data structure which has been intensively studied for  ... 
doi:10.1109/tmc.2010.63 fatcat:vki5x4w2pncpzjzpmzhl6y65ky

Model for adaptive multimedia services

Jari Forstadius, Jussi Ala-Kurikka, Antti T. Koivisto, Jaakko J. Sauvola, Andrew G. Tescher, Bhaskaran Vasudev, V. Michael Bove, Jr.
2001 Multimedia Systems and Applications IV  
The model is demonstrated with an 'ice-hockey service' running in our platform called Princess. The service also utilizes SMIL and key frame techniques for the video representation.  ...  Hence, when creating a new service for the mobile environments, content modelling is a vital issue.  ...  ACKNOWLEDGMENTS The authors wish to thank the Academy of Finland and the National Technology Agency for their support.  ... 
doi:10.1117/12.448217 fatcat:3p6unbhkvvf4rihlyphj5kjzky

Processing of Continuous Location-Based Range Queries on Moving Objects in Road Networks

Haojun Wang, Roger Zimmermann
2011 IEEE Transactions on Knowledge and Data Engineering  
The dual index structure that we proposed for MOVNet has been appropriately modified.  ...  With the proliferation of mobile devices, an increasing number of urban users subscribe to location-based services.  ...  In similar spirit, MOVNet utilizes an in-memory grid index to manage the location updates of moving POIs.  ... 
doi:10.1109/tkde.2010.171 fatcat:lxhwrykhivfx5i4bt7crlkm7qe

Balancing transparency, efficiency and security in pervasive systems [article]

Mark Wenstrom, Eloisa Bentivegna, Ali Hurson (Pennsylvania State University)
2008 arXiv   pre-print
The discussion will be closed by an overview of the solutions proposed by current pervasive computing efforts, both in the area of generic platforms and for dedicated applications such as pervasive education  ...  This chapter will survey pervasive computing with a look at how its constraint for transparency affects issues of resource management and security.  ...  As an alternative indexing scheme, the individual indices for each data object can be combined into an aggregate index.  ... 
arXiv:0801.3102v1 fatcat:6yi3sozlxjgvxjys7imhkomrn4

Mobile image recognition

Jonathan J. Hull, Xu Liu, Berna Erol, Jamey Graham, Jorge Moraleda
2010 Proceedings of the Eleventh Workshop on Mobile Computing Systems & Applications - HotMobile '10  
We argue that the most desirable architecture for mobile image recognition runs the complete algorithm on the mobile device.  ...  We present a method for mobile recognition of paper documents and an application to newspapers that lets readers retrieve electronic data linked to articles, photos, and advertisements.  ...  ., newspapers), we propose that updates should occur sometime late in the evening. An application scenario for our new architecture is shown in Fig. 3 .  ... 
doi:10.1145/1734583.1734604 dblp:conf/wmcsa/HullLEGM10 fatcat:4q33y7s5prbdrfgykx2hw3bzva

Cloud Computing Databases: Latest Trends And Architectural Concepts

Tarandeep Singh, Parvinder S. Sandhu
2011 Zenodo  
Such services are made available in a data center, using shared commodity hardware for computation and storage.  ...  Cloud services can provide efficiencies for application providers, both by limiting up-front capital expenses, and by reducing the cost of ownership over time.  ...  Furthermore, user defined metadata (maximum 4 KB) can be associated to an object and can be read and updated independently of the rest of the object.  ... 
doi:10.5281/zenodo.1057021 fatcat:3cykccfz7jab3h7bb2i5nwg7iy

Wireless Graffiti — Data, data everywhere [chapter]

Tomasz Imielinski, Badri Nath
2002 VLDB '02: Proceedings of the 28th International Conference on Very Large Databases  
In this paper, we take a retrospective look at the problem of querying and updating location dependent data in massively distributed mobile environments.  ...  We would like to thank our funding sources that include NSF, DARPA, and CISCO for supporting much of the Dataman research effort. We also thank Samir Goel for comments on this paper.  ...  This message reaches all those objects that satisfy the condition on the index attribute. This way, in dataspace, multicast serves as an indexing mechanism for this distributed collection of data.  ... 
doi:10.1016/b978-155860869-6/50010-x dblp:conf/vldb/ImielinskiB02 fatcat:tql3cgvmozcctctbnutojdnygi

Scalable architecture for context-aware activity-detecting mobile recommendation systems

Michael Roberts, Nicolas Ducheneaut, Bo Begole, Kurt Partridge, Bob Price, Victoria Bellotti, Alan Walendowski, Paul Rasmussen
2008 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks  
Additionally, notions of mobility and position in space, unique to mobile systems, provide interesting directions for the segmentation and scalability of mobile information systems.  ...  In this paper we describe the implementation of a mobile recommender system for leisure activities, codenamed Magitti, which was built for commercial deployment under stringent scalability requirements  ...  When data in the database is to be updated, we provide for asynchronous updates wherever possible via a write-though cache. A command pattern [20] is utilized for data insertion.  ... 
doi:10.1109/wowmom.2008.4594884 dblp:conf/wowmom/RobertsDBPPBWR08 fatcat:fyrrry6hgjbadbhpslq3exgjj4

Scalable Activity-Travel Pattern Monitoring Framework for Large-Scale City Environment

Youngki Lee, SangJeong Lee, Byoungjip Kim, Jungwoo Kim, Yunseok Rhee, Junehwa Song
2012 IEEE Transactions on Mobile Computing  
Monitoring ATP will incubate new types of value-added services such as predictive mobile advertisement, demand forecasting for urban stores, and adaptive transportation scheduling.  ...  More important, ActraMon employs the shared staging architecture and highly efficient processing techniques, which address the scalability challenges caused by massive location updates, a number of ATP  ...  Selcuk Candan for his valuable suggestions and discussion to improve the quality of this paper.  ... 
doi:10.1109/tmc.2011.113 fatcat:ht2cbcxsj5fytaahr2hv3a2exq

A Review on Various Techniques used for Image Document Retrieval from Digital Library

Kirti D. Munot
2015 International Journal of Engineering Research and  
To handle such heterogeneity, an efficient mobile image document retrieval various system are proposed.  ...  Edge Histogram Descriptor How the edge histogram descriptor for MPEG-7 can be efficiently utilized for image matching is given in [11] .  ...  To improve the image matching efficiency, the extracted visual signatures of database images have to be indexed, typically by an inverted indexing table.  ... 
doi:10.17577/ijertv4is030314 fatcat:d5hphrmizbaohklazkjyzuq7me

Advances in ubiquitous media technologies and applications

Rynson W. H. Lau, Ralf Klamma, Shu-Ching Chen, Benjamin Wah
2011 World wide web (Bussum)  
of Hong Kong, Hong Kong) proposes a novel cache placement strategy combined with an update scheme, which is particularly useful to real mobile peer-to-peer (MP2P) networks.  ...  with update support.  ... 
doi:10.1007/s11280-011-0123-7 fatcat:gt4oac5qgjfu3muhxd6xk655rq

Locating objects in mobile computing

E. Pitoura, G. Samaras
2001 IEEE Transactions on Knowledge and Data Engineering  
In this paper, we present a comprehensive survey of the various approaches to the problem of storing, querying, and updating the location of objects in mobile computing.  ...  Besides mobility in wireless computing, software mobile agents are another popular form of moving objects. Locating objects, i.e., identifying their current location, is central to mobile computing.  ...  service is mobile: Should the directory be hierarchically structured based on location or should an appropriate spatial index be built on top of it; what is an appropriate index in this case?  ... 
doi:10.1109/69.940733 fatcat:yp5edlkfxvbvrop2b726vh4mpm

Interoperability, XML Schema [chapter]

2017 Encyclopedia of GIS  
, Hilbert R-Tree, Spatial Indexing, Multimedia Indexing  ...  Cross-References Cross-References Geospatial Semantic Integration Geospatial Semantic Web Geospatial Semantic Web: Applications Geospatial Semantic Web, Interoperability Geospatial Semantic Web: Personalization Indexing  ...  For the applications too, query indexing can be an effective tool. An important area for future research is the development of index structures that can handle frequent updates to data.  ... 
doi:10.1007/978-3-319-17885-1_100625 fatcat:bgxdhdxa4bewzcggrogz56rdpi
« Previous Showing results 1 — 15 out of 37,310 results