SMART: SEMANTICALLY MASHUP REST WEB SERVICES

ABSTRAC

Survey ::when semantics meet crowdsourcing to enhance big data variety

With the rapid growth of collected data and the variety of its content, the need for efficient integration at a Big Data level becomes crucial. Semantic technologies, as a means of integration and coordination of heterogeneous systems, may help big data to manage terminology and relationships to link various data from different data sources. However, and due to the difficulty of integration and analytics of some datasets with high-precision, automated processes cannot reach a high level of accuracy without the human cognitive ability. Crowdsourcing platforms have the potential to integrate (entity matching, entity resolution) and analyze (sentiment analysis, image recognition) heterogeneous data sources when in some cases these integration tasks may prove to be problematic for computers. In this survey, we explore and compare empirical research studies that rely on merging semantic and crowdsourcing technologies. And, in the light of this comparison, we propose a high-level integration workflow, which shows how merging these technologies can enhance the big data integration process and tackle the data analysis challenges

The power of a blockchain-based supply chain

A supply chain is a system of organizations, people, activities, information and resources involved in moving a product or service from supplier to customer. It is designed to maintain the quality of sensitive goods during the whole shipment. Centralized supply chain management systems expose the supply chain to corruption, fraud, and tampering. Blockchain has emerged as a new distributed information technology; it represents a new approach in supply chain area, where visibility and transparency of product flows are the principal challenges. This paper describes how the blockchain can be integrated into the supply chain architecture to create a reliable, transparent, authentic and secure system. To reach this goal, we studied the benefits of introducing the blockchain to the supply chain and the challenges encountered in a blockchain-based supply chain management ecosystem. We combined theoretical and real-world application studies to build our theory about the requirements for an efficient blockchain-based supply chain

Uncertain GeoInformation Representation and Reasoning: a Use case in LBS Integration

International audienceDue to the fact that mobile devices are in widespread use, many applications including Location Based Services (LBS)had been involved to deliver relevant information to customers anywhere at any time and thus based on theirprofile and geographical position. However, with the increasing number of heterogeneous databases, many problems may ariserelated to 1) the interoperability of geographical databases, 2) the integration of geospatial data / metadata of the same location service, provided differently by many operators and 3) the uncertain positioning results due to GPS/Radio coveragetechnologies, geo coding conversion functions and mobile devices’ Limitations. In this paper, the ‘uncertainty’ issues on geographic,place names and semantic details for homologous objects towards a complete map conflation were solved by our MPLoM framework (Location Integration) and our Visual Domain Ontology application (Cartographic Integration) with anextension of Web Ontology Language named CartOWL

Integrating many legends through ontology for cartographic symbols

International audienceThe use of ontology is common for many domains such as semantic web, e-commerce, artificial intelligence and geographical information systems. Besides, the vocabulary used in ontologies is always textual; concepts and relations are identified and labelled by words. However, some concepts include a visual aspect especially in the cartographic domain. For example, in a cartographic legend, a point of interest symbol is identified as a concept with its icon and/or abbreviation, color, texture, font style, orientation or number. The overall concerns of our research are to integrate different legends as visual ontologies towards a unique reference one (base map and symbols from many providers). The objective of our article is to 1) propose a new type of ontology where the concepts are visual and to apply it to cartographic symbols then to 2) develop an application prototype in order to handle these kinds of ontologies with an extension of Web Ontology Language (CartOWL)

A Local Leader election protocol applied to decentralized traffic regulation

International audienc

Intégration sémantique et cartographique des services localisés multifournisseurs

National audienceL’utilisation de systèmes portables étant aujourd’hui très répandue, de nombreuses applications comportant des services localisés ont été conçues pour délivrer des informations utiles aux utilisateurs et ce, partout, à tout moment en se basant sur leurs profils et leurs positions géographiques. De plus, avec le nombre croissant de données et d’applications géographiques distribuées issues des bases de données hétérogènes, de nombreux problèmes peuvent se présenter concernant 1) l’appariement des bases de données géographiques, 2) l’intégration des données/métadonnées géographiques de plusieurs fournisseurs et 3) le développement de portails conviviaux unifiés sur des systèmes portables de type PDA. Alors que de nombreux standards tel qu’OGC et des applications web tels que Google Maps et Bing, démontrent la faisabilité de portails issus d’un seul fournisseur, l’objectif de notre travail est d’améliorer l’approche qui génère des portails visuels autorisant plusieurs fournisseurs à commercialiser leurs services superposés sur une carte unifiée. En outre, plusieurs algorithmes de fusion, des raisonnements par intelligence artificielle, dont le concept d’ontologie, seront utilisés et modifiés avec d’autres propositions. Tout ceci sera testé par des prototypes afin de résoudre la problématique d’intégration des objets homologues et d’éviter leur duplication sur écran. Ces objets « multi-fournisseurs », se référant au même point d’intérêt mais ayant des données spatiales/non spatiales légèrement différentes, seront appariés par leurs noms de lieu, leurs positions géographiques, leurs détails sémantiques et leurs symboles cartographiques sur un seul fond de carte

Toward a traffic regulation based on event processing agent system

cited By 0International audienceThis paper proposes a traffic road regulation system that allows to extend the functional coverage of the regulation centers of urban traffic by delegating a local leader (L.L.). This L.L. is a vehicle elected by the neighboring cooperative vehicles. The proposed system helps unveil an average speed in the system, reduce the number of accidents, make more smoother traffic flow, reduce congestion and thus facilitate travel. The proposed approach is based on a Semantic Event Processing Agent (SEPA) system where the cooperative-vehicles participate in the election of a Local Leader by generating, analyzing and processing Complex Events. Rules in this Complex Event Processing (CEP) network, are semantically defined in order to ensure reactivity and adaptability to any situation. The proposed approach will help reduce congestion by making traffic more fluid while having a traffic regulation system that does not depend on the network infrastructure and which is is characterized by its reactivity, self adaptability, and autonomy. © 2017 IEEE

Location and Cartographic Integration for Multi-Providers Location Based Services

International audienceSince the development of Geographical Information System (GIS) and the increasing popularity of mobile devices, many standardization bodies such as OGC (Open Geospatial Consortium)had proposed the implementation of Location Based Services (LBS) applications.Furthermore, map service providers had started to use the correspondent devices for visualizing geographical data essentially based on the users’ location, his contextual information and his profile. However, many geographical databases (GDBs) could offer slightly different data/metadata for the same requested service. Advanced LBS have to improve interoperability among them. In this paper,we had elaborated many reasoning algorithms and build/match extended geo-ontology framework for the integration of homologous objects on mobile devices. Our approach is illustrated by a tourism LBS case study and could be applied for any geographical domain where position, place name, semantic details and visual aspects' (icon, texture, etc.) ambiguities will be integrated automatically through our platform

Cartographic Integration on mobile devices from several providers' LBS by means of map symbol ontology

International audienceWith the increasing number of geographical data and distributed geospatial applications with heterogeneous databases, manyproblems may arise while integrating the details of user‘s response from many service providers into a unified visual portal on mobile device (i.e. Street View map).Through a conventional point of view, the use of many Location Based Services (LBS) providers will imply several maps, one for each; whereas a cartographic integration will generate a unique map whose components will come from those various LBS providers. For this purpose, spatial domain ontology-driven approach of map symbols will be presented and some selection rules will be given especially based on user’s preferences and graphical semiology. To avoid duplicate outputs of homologous objects, issued from many providers, different issues of data/metadata integrations will be studied by using (1) geometric reasoning (based on Euclidian distance), (2) semantic reasoning (based on a feature ontology), (3) place name reasoning (based on a gazetteer or Levenshtein distance), within the framework of belief theory and (4) symbol integration (through the map symbol ontology). This article will present the fusion techniques and the development of a platform named MPLoM (Multi-Providers LBS on Mobile) which is able to support its mobile navigators with personalized preferences and location based services either in push or pull mode. We conclude this paper by advocating the creation of new web services based on multiple providers