Mar 31, 2020 pdf semantic web by michael workman, data processing. The trend towards making cities, offices, and homes smarter by turning them into sensor rich. To address the shortcomings of existing sensor ontologies, such as lack of a unified ontology framework and being built completely manually, this work proposes. Five challenges for the semantic sensor web semantic web journal. Ontology alignment architecture for semantic sensor web integration article pdf available in sensors 9. W3c semantic sensor networks ontologies, applications, and future directions cory henson ohio center of excellence in knowledgeenabled computing kno. Using scxml for semantic annotation and context modelling. The semantic sensor network ssn ontology is an ontology for. Semantic sensor network ontology world wide web consortium. Enabling query technologies for the semantic sensor web. The term semantic sensor web was coined by sheth et al. In this paper, such an ontology model is proposed, as well as a realworld use.
This paper presents a novel approach to combine, process and enrich data from heterogeneous sensor networks, and, further, to semantically annotate the observations of the sensed world thus obtained and publish them on the future semantic sensor web. The combination of sensor networks with the web, web services and database technologies, was named some years ago as the sensor web or the. Sensor ontology building in semantic sensor web springerlink. Section4illustrates an integrated design workflow that supports this goal. In this paper we propose the use of statecharts, as implemented in w3c scxml language, to enrich and process lowlevel data sensor networks resulting in a. In the next century, planet earth will don an electronic skin. Sensor networks are increasingly being deployed in the environment for many different purposes. It will use the internet as a scaffold to support and transmit its. Using the semantic web to progress from sensor frameworks to context frameworks is not new it has been proposed in the recent semantic sensor web initiative 8, 9. Ppt semantic sensor web powerpoint presentation free to. Both ontologies are described below, and examples of their usage are given. Pdf sensors are distributed across the globe leading to an avalanche of data about our environment. A use case in semantic modelling and ranking for the sensor web.
At the other end we have databases, programs and sensor output. Semantic sensor data search in a largescale federated sensor. Moreover, we transformed such annotations to semantic descriptions, by using the cloudbased thingspeak middleware. The encoding of sensor descriptions and sensor observation data. I am new in the semantic web field, and im trying to create a java model using jena to extract classes, subclass andor comments from an owl file any helpguidance on how to do such thing would be. The combination of sensor networks with the web, web services and database technologies, was named some years ago as the sensor web or the sensor internet 1,6,7,11,15. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as. Lastly we discuss the potential of a semantic web based bim for future smart buildings. Like the internet, the semantic web will be as decentralized as possible. Integrating building information modeling and sensor.
Ontologybased streaming data access aims at generating semantic web con tent from existing. Sharing humangenerated observations by integrating hmi and. Most of the work done on this topic, performed in some cases under the umbrella of the ogc sensor web enablement working group1. Semantic sensor networks ceur workshop proceedings. Wei, w and barnaghi, p 2009 semantic annotation and reasoning for sensor data in. The semantic sensor network ontology world wide web. The semantic sensor network ssn ontology compton et al. The observations that they produce are made available with heterogeneous schemas, vocabularies and data formats, making it difficult to share and reuse this data, for other purposes than those for which they were originally set up.
The semantic sensor web ssw is a marriage of sensor and semantic web technologies. The recent advancements in this area are discussed in several existing works including the w3cs semantic sensor network incubator groups ontology. Pdf ontology alignment architecture for semantic sensor. Five challenges for the semantic sensor web editor s. The sso was developed as a minimal and common ground for heavyweight ontologies for the use on the semantic sensor web as well as to explicitly address the need.
In our methodology we proposed to encode sensor and observation data annotations through semantic web technologies and to embed them within devices. Ontologies enable reasoning, classification and other types of automation to extend the swe stan dards of the ogc. The ssn ontology of the w3c semantic sensor network incubator. In semantic sensor web the lack of semantics in the sensor web is intended to be overcome by using semantic web technologies, so heterogeneous sensor data. Pdf the ssn ontology of the w3c semantic sensor network. Currently, loviot is maintained since she is a postdoc researcher at insight within the. It is the realization of the sensor web in the context of the semantic web. Abstractcurrent internet of things concepts point to a future where connected objects gather. Five challenges for sensor web applications this section starts presenting those challenges in the area of the sensor web that have to do with the characteristics of the data sources that are handled in typical sensor web applications, and then moves into those challenges that have to do with the creation of. The joint w3c world wide web consortium and ogc open geospatial consortium spatial data on the web sdw working group developed a set of ontologies to describe sensors, actuators, samplers as well as their observations, actuation, and sampling activities.
The adobe flash plugin is needed to view this content. Software downloads from the largest open source applications and software directory. Ontologies that represent sensors and observations can form the basis for semantic sensor data infrastructures. After this pioneering work, many other works have embraced the idea of applying semantic technologies for different tasks related to the. Also, related concepts, subgroups of sensor types, or other dependencies cannot be explored and the integration of domain ontologies, semantic queries and semantic transformations in sensor web infrastructure have to be addressed. Such ontologies may help to cope with the problems of sensor discovery, data integration, and reuse, but need to be used in conjunction with algorithms for sensor selection and ranking. Enabling semantic mediation in ogc sensor web enablement. To date, the web has developed most rapidly as a medium of documents for people rather than for data and information that can be processed automatically. Semantic web technologies a set of technologies and frameworks that enable the web of data. Pdf ontology alignment architecture for semantic sensor web. Semantic annotation and reasoning for sensor data surrey.
Creator amelie gyrard eurecom insight nuigderi designed and implemented by amelie gyrard, she was a phd student at eurecom under the supervision of prof. The trend towards making cities, offices, and homes smarter by turning them into sensorrich. Pdf semantic web by michael workman, data processing. The semantic web can work because it relies on standards that the community adheres to the essence of the semantic web is that one can integrate data from different places using the same, ie, standard representation w3c has always been one of the major players in this technology in what follows, i will give an overview of what is.
Article pdf available in journal of web semantics 17 december 2012 with 818. Pdf semantic sensor web cory andrew henson academia. Any information or knowledge related to systems is. Krzysztof janowicz, pennsylvania state university, usa. An ontological representation of time series observations on. The authors propose an ontologybased approach for providing data. Aug 27, 20 from using twitter in participatory sensing and bicyclemounted sensors in pervasive environmental sensing, to creating a 100,000 sensor geomashup using semantic web technology, to the 3d visualisation of indoor and outdoor surveillance data in realtime and the development of nextgeneration. Semantic web technologies have been proposed as a means to enable interoperability for sensors and sensing systems. The encoding of sensor descriptions and sensor observation data with semantic web languages enables more expressive representation, advanced access, and formal analysis of sensor resources. Bridging the semantic sensor web and multimodal humanmachine. Transforming sensor data to rdf based on ssn ontology. Further, we have developed a prototype to demonstrate the effectiveness of our method. This was consistent with w3c endorsed best practices on publishing data on the web, which recommend a linked data approach, allowing sensor data, for example, to be published as part of a global and densely interconnected graph of data 34.
The ssn ontology of the w3c semantic sensor network incubator group. The semantic sensor web ssw 16 suggests enriching sensor observations with semantic metadata to enhance interoperability, with some of the semantic processing taking place on embedded devices. Compare the best free open source semantic web rdf, owl, etc. Semantic web x 2018 10x ios press the sosassn ontology. Then, an algorithm named sdrm is designed to transform sensor data to rdf conforming to ssn ontology, based on the predefined sasml mapping file. The initial w3c semantic sensor network incubator group ontology ssn was built around an ontology design pattern called the stimulus sensor observation sso pattern ssopattern. A semantic sensor web for environmental decision support. An ontological representation of time series observations could provide a more expressive model and resolve problems of semantic level interoperability of sensor networks on the semantic sensor web. Ppt semantic sensor web powerpoint presentation free to view id. The continual emergence of new terms such as sensor web, realworld internet, semantic sensor web, semantic sensor internet or human sensor web, suggests that more fundamental research effort is required to advance in how to effectively articulate and provide access to humangenerated observations, human sensors, sensor observations and the. Despite their importance in image analysis and scene under. This article is from sensors basel, switzerland, volume 12. Semantic sensor web ssw millions of sensors around the globe currently collect avalanches of data about our environment. Resource description framework rdf a variety of data interchange formats e.
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