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A Survey on Disk Oriented Querying and Reasoning on the Semantic Web

M. del Mar Roldan-Garcia, J.F. Aldana-Montes
2006 22nd International Conference on Data Engineering Workshops (ICDEW'06)  
We can observe an evolution from RDF to OWL in most up-to-date systems.  ...  We also believe that the physical design of the knowledge base is a very important task, which includes the development of both specific storage structures and indexes for knowledge storage and retrieval  ...  [10] is an open source, massively scalable, purpose-built database for the storage and retrieval of metadata. Therefore, it can be used to store and retrieve RDF.  ... 
doi:10.1109/icdew.2006.21 dblp:conf/icde/GarciaM06 fatcat:xzmi5l6ptfcrtlpeyyji3kejgy

Jena

Jeremy J. Carroll, Ian Dickinson, Chris Dollin, Dave Reynolds, Andy Seaborne, Kevin Wilkinson
2004 Proceedings of the 13th international World Wide Web conference on Alternate track papers & posters - WWW Alt. '04  
The new Semantic Web recommendations for RDF, RDFS and OWL have, at their heart, the RDF graph. Jena2, a secondgeneration RDF toolkit, is similarly centered on the RDF graph.  ...  RDF graphs can be stored in-memory or in databases. Jena's query language, RDQL, and the Web API are both offered for the next round of standardization.  ...  PERSISTENT STORAGE As in Jena1, the database subsystem in Jena2 supports persistent storage of RDF Models in a conventional database [33] .  ... 
doi:10.1145/1013367.1013381 dblp:conf/www/CarrollDDRSW04 fatcat:pgcrdsh74rcvhart5nfmptv6ne

Relational processing of RDF queries

Sherif Sakr, Ghazi Al-Naymat
2010 SIGMOD record  
The RDF model has attracted the attention of the database community and many researchers have proposed different solutions to store and query RDF data efficiently.  ...  We provide an overview of the different approaches and classify them according to their storage and query evaluation strategies.  ...  While the interpreted format has storage benefits for sparse data, retrieving the values from attributes in tuples is more complex.  ... 
doi:10.1145/1815948.1815953 fatcat:yhobpplevzdjvnbfqgpciyzsx4

Jena

Jeremy J. Carroll, Ian Dickinson, Chris Dollin, Dave Reynolds, Andy Seaborne, Kevin Wilkinson
2004 Alternate track papers & posters of the 13th international conference on World Wide Web - WWW Alt. '04  
The new Semantic Web recommendations for RDF, RDFS and OWL have, at their heart, the RDF graph. Jena2, a secondgeneration RDF toolkit, is similarly centered on the RDF graph.  ...  RDF graphs can be stored in-memory or in databases. Jena's query language, RDQL, and the Web API are both offered for the next round of standardization.  ...  PERSISTENT STORAGE As in Jena1, the database subsystem in Jena2 supports persistent storage of RDF Models in a conventional database [33] .  ... 
doi:10.1145/1010432.1010446 fatcat:mm4ndvtzr5dohi3fci5twofuli

SOR: A Practical System for Ontology Storage, Reasoning and Search

Jing Lu, Li Ma, Lei Zhang, Jean-Sébastien Brunner, Chen Wang, Yue Pan, Yong Yu
2007 Very Large Data Bases Conference  
This demonstration shows how to efficiently solve three key problems in practical ontology management in RDBMS, namely storage, reasoning, and search.  ...  In this paper, we present and demonstrate SOR (Scalable Ontology Repository), a practical system for ontology storage, reasoning, and search.  ...  As introduced in the above, the Oracle RDF store, Jena2 and Sesame mainly use a triple table to store ontology in relational databases.  ... 
dblp:conf/vldb/LuMZBWPY07 fatcat:oswkliznbvcoxo3jsv4vvlqpky

RQ-RDF-3X: Going beyond triplestores

Jyoti Leeka, Srikanta Bedathur
2014 2014 IEEE 30th International Conference on Data Engineering Workshops  
Efficient storage and querying of large repositories of RDF content is important due to the widespread growth of Semantic Web and Linked Open Data initiatives.  ...  Many novel database systems that store RDF in its native form or within traditional relational storage have demonstrated their ability to scale to large volumes of RDF content.  ...  Storage and Indexing in RQ-RDF-3X In RQ-RDF-3X, we support reification by assigning a unique identifier (R) to each (S, P, O) triple.  ... 
doi:10.1109/icdew.2014.6818337 dblp:conf/icde/LeekaB14 fatcat:zwsepdgldvdaphxm2xdffqtr7e

Scaling RDF with Time

Andrea Pugliese, Octavian Udrea, V. S. Subrahmanian
2008 Proceeding of the 17th international conference on World Wide Web - WWW '08  
Past efforts to store RDF in relational stores include Jena2 from HP, Sesame from OpenRDF.org, and 3store from the University of Southampton.  ...  As a consequence, efforts have been made to annotate RDF triples with "valid time" intervals. However, to date, no proposals exist for efficient indexing of such temporal RDF databases.  ...  [16] -, is concerned with efficiently retrieving supergraphs of a given query from a set of graphs (the database).  ... 
doi:10.1145/1367497.1367579 dblp:conf/www/PuglieseUS08 fatcat:2epp55kvsbfi7bnnbgqxx2z72a

DOGMA: A Disk-Oriented Graph Matching Algorithm for RDF Databases [chapter]

Matthias Bröcheler, Andrea Pugliese, V. S. Subrahmanian
2009 Lecture Notes in Computer Science  
As RDF databases increase in size to approach tens of millions of triples, and as sophisticated graph matching queries expressible in languages like SPARQL become increasingly important, scalability becomes  ...  We have implemented a preliminary system and tested it against four existing RDF database systems developed by others.  ...  Jena2 [7] is a popular Java RDF framework that supports persistent RDF storage backed by a relational database system (we used PostgreSQL [8]).  ... 
doi:10.1007/978-3-642-04930-9_7 fatcat:myg3xhd46vbfveqlo7gmkthb4m

A repository framework for self-growing robot software

Hyung-Min Koo, In-Young Ko
2005 12th Asia-Pacific Software Engineering Conference (APSEC'05)  
In this paper, we describe the requirements and architecture of the repository system for self-growing software. We also present a prototype implementation of the repository system.  ...  Self-growing software is a software system that grows its functionalities and configurations by itself based on dynamically monitored situations.  ...  The authors also would like to thank Hyun-il Shin, Yu-sik Park, Beom-jun Jeon, and Ki-hyeon Kim for their comments and insights.  ... 
doi:10.1109/apsec.2005.15 dblp:conf/apsec/KooK05 fatcat:vwpjwgrgjvdzrnpkne5ew6groi

Extracting Code Resource from OWL by Matching Method Signatures using UML Design Document

Gopinath Ganapathy, S. Sagayaraj
2011 International Journal of Advanced Computer Science and Applications  
The method signature is searched in OWL for the similar method prototypes and the appropriate code components will be extracted from the HDFS and reused in a project.  ...  Software companies develop projects in various domains, but hardly archive the programs for future use. The method signatures are stored in the OWL and the source code components are stored in HDFS.  ...  In response to these issues, Jena2 has a more decoupled architecture than Jena1. Jena2 provides inference support for both the RDF semantics [29] and the OWL semantics [30] .  ... 
doi:10.14569/ijacsa.2011.020215 fatcat:jex6v7bwrfaqpfzdksehc4frfm

An Analysis of RDF Storage Models and Query Optimization Techniques

Asim Sinan Yuksel, Ibrahim Arda Cankaya, Mehmet Erkan Yuksel
2015 International Journal of Information Engineering and Electronic Business  
Because of the difficulty of storing and querying RDF data, several storage techniques have been proposed for these tasks. In this paper, we present the motivations for using the RDF data model.  ...  Our findings will shed light on the current achievements in RDF research by comparing the different methodologies for storage and optimization proposed so far, thus identifying further research areas.  ...  This type of storage is efficient when a large amount of data is retrieved from the table, however it is not appropriate when retrieving very small amounts of data.  ... 
doi:10.5815/ijieeb.2015.02.04 fatcat:o6c2zmu3xbg3vn6qhgyjdsu2pu

A survey of RDF storage approaches

David C. Faye, Olivier Curé, Guillaume Blin
2012 ARIMA  
There is a real need to efficiently store and retrieve RDF data as the number and scale of Semantic Web in real-word applications in use increase.  ...  Efficient data storage and query processing that can scale to large amounts of possibly schema-less data has become an important research topic.  ...  Taxonomy of RDF storage layout An efficient RDF storage schema should offer both scalability in its data management performance and variety in its data storage, processing and representation.  ... 
doi:10.46298/arima.1956 fatcat:j2zjgg4dvzhmjm7qoimwzknjc4

Semantic File Annotation and Retrieval on Mobile Devices

Sadaqat Jan, Maozhen Li, Ghaidaa Al-Sultany, Hamed Al-Raweshidy, Ibrar Ali Shah
2011 Mobile Information Systems  
However, it has become a challenging issue for users to efficiently and effectively search for files of interest in a mobile environment involving a large number of mobile nodes.  ...  This paper presents SemFARM framework which facilitates users to publish, annotate and retrieve files which are geographically distributed in a mobile network enabled by Bluetooth.  ...  Performance evaluation Various tests and comparisons are outlined in the following subsections to measure the efficiency of SemFARM in terms of file retrieval and search accuracy.  ... 
doi:10.1155/2011/320984 fatcat:72vdnnj7jfffrmgcpirt76lnny

STLIS: A Scalable Two-Level Index Scheme for Big Data in IoT

Yonglin Leng, Zhikui Chen, Yueming Hu
2016 Mobile Information Systems  
Results demonstrate that our proposed scheme can respond to the complex query in real time and save much storage space compared with RDF-3X and Bitmat.  ...  As an effective representation model, RDF receives the most attention. More and more storage and index schemes have been developed for RDF model.  ...  In order to improve the retrieval efficiency, many alternative storage schemes are designed to reduce the self-join.  ... 
doi:10.1155/2016/5341797 fatcat:nsuwkztbqrdslm6vdbwvfqnqju

Scalable and Efficient Self-Join Processing technique in RDF data [article]

Awny Sayed, Amal Almaqrashi
2014 arXiv   pre-print
Efficient management of RDF data plays an important role in successfully understanding and fast querying data.  ...  As an improvement in this paper, we propose an alternative solution to facilitate flexibility and efficiency in that queries and try to reach to the optimal solution to decrease the self-joins as much  ...  RDF storage has witnessed numerous research initiatives in varied domains. Despite the best efforts, a scalable, efficient and fast index has eluded researcher's attention.  ... 
arXiv:1409.4507v1 fatcat:ghut2ck2fnctpivcjvfjc2dn4u
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