272 Hits in 7.0 sec

Distributed messaging and light streaming system for combating pandemics

Yavuz Melih Özgüven, Süleyman Eken
2021 Journal of Ambient Intelligence and Humanized Computing  
, and performing skyline based queries.  ...  In this system, three of the major components are the translation of tweets matching with user-defined bounding boxes, name entity recognition in tweets, and skyline queries.  ...  (Corsi et al. 2020) give a systematic review of literature for big data analytics (Eken 2020a ) as a tool for fighting pandemics.  ... 
doi:10.1007/s12652-021-03328-0 pmid:34127932 pmcid:PMC8190525 fatcat:uebu243jrzh6tl3dse6xja4xaq

Recommendations for two-way selections using skyline view queries

Jian Chen, Jin Huang, Bin Jiang, Jian Pei, Jian Yin
2012 Knowledge and Information Systems  
However, the existing skyline computation algorithms focus on answering a single skyline query at a time and do not consider sharing computation when answering skyline view queries for many members in  ...  In order to make recommendations in various scenarios, we propose a series of skyline view queries.  ...  However, to the best of our knowledge, skyline queries for recommendations in two-way selection have not been studied systematically.  ... 
doi:10.1007/s10115-012-0489-6 fatcat:5yemmvxjwvgftea2iy44jyd4t4

Program book

2010 2010 IEEE 26th International Conference on Data Engineering Workshops (ICDEW 2010)  
of spatial indexes on the spatial attributes.  ...  Progressive Result Generation for Multi-Criteria Decision Support Queries Venkatesh Raghavan, Elke A.  ...  when applied to social networks and searching for people, contacts or shared interests is very different from the search over documents studied in information retrieval.  ... 
doi:10.1109/icdew.2010.5452773 fatcat:oyq2tujbvjfpxjlyixux5q57vu

A Conceptual Framework for using Big Data in Egyptian Agriculture

Sayed Ahmed, Amira S. Mahmoud, Eslam Farg, Amany M. Mohamed, Marwa S. Moustafa, Mohamed A. E. AbdelRahman, Hisham M. AbdelSalam, Sayed M. Arafat
2022 International Journal of Advanced Computer Science and Applications  
In this work, we review the BD role in the agriculture sector in responding to two main questions: 1) Which technique, frameworks and data types were adopted. 2) Identification of the existing gap associated  ...  Agriculture is a typical contributor to the Egyptian economy, which could benefit from the comprehensive capabilities of Big Data (BD).  ...  It was constructed on top of Spark RDD for providing a broad range of spatial operations, including range query, spatial join, spatial filtering, R-Tree index, and R-Tree partitioning to boost queries  ... 
doi:10.14569/ijacsa.2022.0130322 fatcat:i6exbyctdbgtndzqubfbqps7eq

Online Skyline Analysis with Dynamic Preferences on Nominal Attributes

R.C.-W. Wong, Jian Pei, A.W.-C. Fu, Ke Wang
2009 IEEE Transactions on Knowledge and Data Engineering  
We address two novel types of interesting queries: a viewpoint query returns with respect to which orders a point is (or is not) in the skylines, and a refined skyline query retrieves the skyline with  ...  The importance of skyline analysis has been well recognized in multicriteria decision-making applications. All of the previous studies assume a fixed order on the attributes in question.  ...  ACKNOWLEDGMENTS The authors are grateful to the anonymous reviewers for their constructive comments on this paper.  ... 
doi:10.1109/tkde.2008.115 fatcat:6sm2t5eu6rd4nc5cyf5j3pew3a

A Survey on IoT Big Data Analytic Systems: Current and Future

Yuya Sasaki
2021 IEEE Internet of Things Journal  
decisions.  ...  We explore Hadoop-and Spark-based batch processing systems for spatio-temporal and trajectory data. We also review fog-and edge-aware stream processing systems.  ...  Other query types such as ID search, skyline queries [36] , and similarity search are also supported in many systems.  ... 
doi:10.1109/jiot.2021.3131724 fatcat:cgvglkxiavdg3a6uv2zljl4ofm

29th International Conference on Data Engineering [book of abstracts]

2013 2013 IEEE 29th International Conference on Data Engineering Workshops (ICDEW)  
of the TPC-H Benchmark as a case study for the efficient implementation of decision support queries on main memory columnstore databases.  ...  Hash tables, also often used for main-memory indexes, are fast but only support point queries.  ... 
doi:10.1109/icdew.2013.6547409 fatcat:wadzpuh3b5htli4mgb4jreoika

Review of Big Data and Processing Frameworks for Disaster Response Applications

Silvino Pedro Cumbane, Gyozo Gidófalvi
2019 ISPRS International Journal of Geo-Information  
architecture, data flow, data processing model, fault-tolerance, scalability, latency, back-pressure mechanism, programming languages, and support for machine learning libraries, which are related to  ...  Finally, a link between big data and processing frameworks is established, based on the processing provisioning for essential tasks in the response phase of disaster management.  ...  Acknowledgments: We thank the anonymous reviewers for their insightful comments, which significantly improved the paper. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/ijgi8090387 fatcat:2fhh4kol2nfatbokwiggnfm5ge

Probabilistic skylines on uncertain data: model and bounding-pruning-refining methods

Bin Jiang, Jian Pei, Xuemin Lin, Yidong Yuan
2010 Journal of Intelligent Information Systems  
Although a considerable amount of research has been dedicated to modeling uncertain data and answering some types of queries on uncertain data, how to conduct advanced analysis on uncertain data remains  ...  In this paper, we tackle the problem of skyline analysis on uncertain data.  ...  [8] are the first to study probabilistic range queries. They developed two auxiliary index structures to support querying uncertain intervals effectively. Tao et al.  ... 
doi:10.1007/s10844-010-0141-4 fatcat:pf45team3nckhbiwl624napsai

A Survey of Community Search Over Big Graphs [article]

Yixiang Fang, Xin Huang, Lu Qin, Ying Zhang, Wenjie Zhang, Reynold Cheng, Xuemin Lin
2019 arXiv   pre-print
In this survey, we conduct a thorough review of existing community search works.  ...  Nevertheless, these works focus on different types of graphs and formulate communities in different manners, and thus it is desirable to have a comprehensive review of these works.  ...  Acknowledgments We would like to thank Jiafeng Hu *For lack of space, we use abbreviations for the names of major conferences and journals in database and data mining areas (e.g., we use "PVLDB" to mean  ... 
arXiv:1904.12539v2 fatcat:swx7eervgbbgxpcf6znkx6cne4

LANet: An Enriched Knowledgebase for Location-aware Activity Recommendation System [article]

Sahisnu Mazumder
2016 arXiv   pre-print
Accumulation of large amount of location-specific reviews on web due to escalating popularity of Location-based Social Networking platforms like Yelp, Foursquare, Brightkite etc. in recent years, has created  ...  Experimental results show the information richness and accuracy of the proposed knowledge base which is comparable to human perception and accounts for our success in achieving the desired solution.  ...  In summary, LActRS makes decision in query mode, whereas user makes decision in broadcast mode.  ... 
arXiv:1606.03480v1 fatcat:kh4xfvkgnvds7h43jvj6ddd4um

A Review on Path Selection and Navigation Approaches Towards an Assisted Mobility of Visually Impaired People

2020 KSII Transactions on Internet and Information Systems  
It is observed that the solution to problem is complex and computationally intensive and significant effort is required towards the development of richer and comfortable paths for safe and smooth navigation  ...  In the process, we explore machine learning approaches for robotic path planning, multi constrained optimal path computation and sensor based wearable assistive devices for the visually impaired.  ...  Skyline queries are used in multi-criteria optimization/decision problems.  ... 
doi:10.3837/tiis.2020.08.007 fatcat:k3r6ceqxcbg7xkllthpox3ix3a

Data Semantics [chapter]

2017 Encyclopedia of GIS  
Cross-References Data Infrastructure, Spatial Geography Markup Language (GML) Metadata and Interoperability, Geospatial National Spatial Data Infrastructure (NSDI) OGC's Open Standards for Geospatial Interoperability  ...  Web Mapping and Web Cartography Web Services, Geospatial Cross-References Internet-Based Spatial Information Retrieval Internet GIS  ...  Decision support systems (DSS) are increasingly being combined with geographic information systems (GIS) to form a hybrid type of decision support tool known as a spatial decision support system (SDSS)  ... 
doi:10.1007/978-3-319-17885-1_100256 fatcat:npcac6ns2zdjfokmwpmzb2s6km

NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query [article]

Xiuqi Huang, Yuanning Gao, Xiaofeng Gao, Guihai Chen
2022 arXiv   pre-print
With a large volume of data containing locations, texts, check-in information, and social relationships, spatial keyword queries in LBSNs have become increasingly complex.  ...  In this paper, we identify and solve the Social-based Time-aware Spatial Keyword Query (STSKQ) that returns the top-k objects by considering geo-spatial score, keywords similarity, visiting time score,  ...  Various approaches [11, 12, 21] have been designed to support spatial keyword query, and these approaches mainly focus on keywords and spatial location.  ... 
arXiv:1908.09520v2 fatcat:pbtw67ldtbarzlbba2gnpmfkqi

Distributed Skyline Retrieval with Low Bandwidth Consumption

Lin Zhu, Yufei Tao, Shuigeng Zhou
2009 IEEE Transactions on Knowledge and Data Engineering  
This paper proposes an algorithm, called feedback-based distributed skyline (FDS), to support arbitrary horizontal partitioning.  ...  horizontal partitioning, (ii) effective only when each server has limited computing and communication abilities, and (iii) optimized only for skyline search in subspaces but inefficient in the full space  ...  decision making, etc.  ... 
doi:10.1109/tkde.2008.142 fatcat:wsytamhurndzznahu2dwpgzk5e
« Previous Showing results 1 — 15 out of 272 results