43 research outputs found
Query Migration from Object Oriented World to Semantic World
— In the last decades, object-oriented approach was
able to take a large share of databases market aiming to design
and implement structured and reusable software through the
composition of independent elements in order to have programs
with a high performance. On the other hand, the mass of
information stored in the web is increasing day after day with
a vertiginous speed, exposing the currently web faced with the
problem of creating a bridge so as to facilitate access to data
between different applications and systems as well as to look
for relevant and exact information wished by users. In addition,
all existing approach of rewriting object oriented languages to
SPARQL language rely on models transformation process to
guarantee this mapping. All the previous raisons has prompted us
to write this paper in order to bridge an important gap between
these two heterogeneous worlds (object oriented and semantic web
world) by proposing the first provably semantics preserving OQLto-SPARQL translation algorithm for each element of OQL Query
(SELECT clause, FROM clause, FILTER constraint, implicit/
explicit join and union/intersection SELECT queries)
Multimodal Generic Framework for Multimedia Documents Adaptation
Today, people are increasingly capable of creating and sharing documents (which generally are multimedia oriented) via the internet. These multimedia documents can be accessed at anytime and anywhere (city, home, etc.) on a wide variety of devices, such as laptops, tablets and smartphones. The heterogeneity of devices and user preferences has raised a serious issue for multimedia contents adaptation. Our research focuses on multimedia documents adaptation with a strong focus on interaction with users and exploration of multimodality. We propose a multimodal framework for adapting multimedia documents based on a distributed implementation of W3C’s Multimodal Architecture and Interfaces applied to ubiquitous computing. The core of our proposed architecture is the presence of a smart interaction manager that accepts context related information from sensors in the environment as well as from other sources, including information available on the web and multimodal user inputs. The interaction manager integrates and reasons over this information to predict the user’s situation and service use. A key to realizing this framework is the use of an ontology that undergirds the communication and representation, and the use of the cloud to insure the service continuity on heterogeneous mobile devices. Smart city is assumed as the reference scenario
Smart Emergency Alert System Using Internet of Things and Linked Open Data for Chronic Disease Patients
International audienceNowadays, the widespread deployment of more powerful devices (sensors, smartphones, tablets, etc.) has provided us with great number sources of sensing data that are exploited in several domains namely the healthcare domain. Chronic diseases are the most common causes of death and disability worldwide. These types of diseases require more and more studies to help patients and notify cases of crises that lead to death. Representing knowledge through building an ontology for emergency alert system is important to achieve semantic interoperability among health information, predict the patient real-time context and to better execute decision notification. Linked Open Data services are used in our paper in order to provide with the semantic description of collected data from different sources (wearable sensors, environmental sensors, etc.)
Converting UML Class Diagrams into Temporal Object Relational DataBase
Number of active researchers and experts, are engaged to develop and implement new mechanism and features in time varying database management system (TVDBMS), to respond to the recommendation of modern business environment..Time-varying data management has been much taken into consideration with either the attribute or tuple time stamping schema. Our main approach here is to try to offer a better solution to all mentioned limitations of existing works in order to provide the non-procedural data definitions, queries of temporal data as complete as possible technical conversion that allow to easily realize and share all conceptual details of the UML class specifications, from conception and design point of view. This paper contributes to represent a logical design schema by UML class diagrams, which are handled by stereotypes to express a temporal object relational database with attribute timestamping
Existence of Periodic solutions of integro-differential delay equations with two variable in vector-valued function space
2The aim of this work is to study the existence of a periodic solutions of neutral integro-differential partial functional differential equations with two variable: ∂ ∂x ∂ ∂y (u(x, y)−Bu(x− r, y − r)) + Au(x, y) = x −∞ y −∞ a(x − s, y − ξ)u(s, ξ)dξds + f (x, y), x, y ∈ [0, 2π]. Our approach is based on the L p-multipliers of linear operators
Using TAM model to empirically examine students' attitudes towards e-services in college of business administration
This study examines the relationships between Perceived Ease of Use and Perceived Usefulness with actual use of E-Services among 189 students from College of Business Administration (CBA) at Prince Sattam bin Abdulaziz University (PSAU) for the academic year 2017/2018. Using a survey-based methodology based on TAM perceptive, the results show that Perceived Ease for Use (PEU) and Perceived Usefulness (PU) had positive associations with Actual Use (AU) of E-Services among CBA students. Thus, the result of this study supports the prediction of TAM theory. The results of this study should be useful to educational policy makers in Kingdom of Saudi Arabia (KSA) and elsewhere, as there is an opportunity of enhancing the E-Services in the academic context
IJIMAI Editor's Note - Vol. 4 Issue 1
The research works presented in this issue are based on various topics of interest, among which are included: Pattern Recognition, Multimedia Information Retrieval, Knowledge extraction and knowledge mining, Data mining, Intelligent Systems & Artificial Intelligence, Wireless Technology, Network Telecommunication, Security & Network Management, Advanced Network Technologies