Search results for "QL"
showing 10 items of 424 documents
A new approach based on NμSMV Model to query semantic graph
2011
International audience; The language most frequently used to represent the semantic graphs is the RDF (W3C standard for meta-modeling). The construction of semantic graphs is a source of numerous errors of interpretation. Processing of large semantic graphs can be a limit to use semantics in modern information systems. The work presented in this paper is part of a new research at the border between two areas: the semantic web and the model checking. For this, we developed a tool, RDF2NμSMV, which converts RDF graphs into NμSMV language. This conversion aims checking the semantic graphs with the model checker NμSMV in order to verify the consistency of the data. The data integration and shar…
Fossil echinoid (Echinoidea, Echinodermata) diversity of the Early Cretaceous (Hauterivian) in the Paris Basin (France).
2013
11 pages; International audience; This dataset inventories occurrence records of fossil echinoid specimens collected in the Calcaires à Spatangues Formation (CSF) that crops out in the southeast of the Paris Basin (France), and is dated from the Acanthodiscus radiatus chronozone (ca. 132 Ma, early Hauterivian, Early Cretaceous). Fossil richness and abundance of the CSF has attracted the attention of palaeontologists since the middle of the nineteenth century. This dataset compiles occurrence data (referenced by locality names and geographic coordinates with decimal numbers) of fossil echinoids both collated from the literature published over a century and a half, and completed by data from …
FOWLA, A Federated Architecture for Ontologies.
2015
International audience; The progress of information and communication technologies has greatly increased the quantity of data to process. Thus, managing data heterogeneity is a problem nowadays. In the 1980s, the concept of a Federated Database Architecture (FDBA) was introduced as a collection of components to unite loosely coupled federation. Semantic web technologies mitigate the data heterogeneity problem, however due to the data structure heterogeneity the integration of several ontologies is still a complex task. For tackling this problem, we propose a loosely coupled federated ontology architecture (FOWLA). Our approach allows the coexistence of various ontologies sharing common data…
A Rule Based System for Semantical Enrichment of Building Information Exchange
2014
International audience; In the area of building construction and management, the dematerial-ization of data and processes has been a global issue for the past 10 years. Go-ing beyond the geometric representation of a building, Building Information Modeling (BIM) is an approach that aims at integrating into one single system heterogeneous data and processes from different actors. Such integration is a complex and fastidious task. The implementation of the related processes for data querying, retrieval or modification is not less difficult. To tackle this prob-lem, we have developed a novel approach based on Semantic Web technolo-gies. In doing so, we have defined an ontology inspired on IFC …
Adding Knowledge Extracted by Association Rules into Similarity Queries
2010
International audience; In this paper, we propose new techniques to improve the quality of similarity queries over image databases performing association rule mining over textual descriptions and automatically extracted features of the image content. Based on the knowledge mined, each query posed is rewritten in order to better meet the user expectations. We propose an extension of SQL aimed at exploring mining processes over complex data, generating association rules that extract semantic information from the textual description superimposed to the extracted features, thereafter using them to rewrite the queries. As a result, the system obtains results closer to the user expectation than i…
Temporal Logic To Query Semantic Graphs Using The Model Checking Method
2012
International audience; Semantic interoperability problems have found their solutions due to the use of languages and techniques from the Semantic Web. The proliferations of ontologies and meta-information have improved the understanding of information and the relevance of search engine responses. However, the construction of semantic graphs is a source of numerous errors of interpretation or modeling, and scalability remains a major problem. The processing of large semantic graphs is a limit to the use of semantics in current information systems. The work presented in this paper is part of a new research at the border of two areas: the semantic web and the model checking. This line of rese…
Biomineralizations: insights and prospects from crustaceans.
2011
19 pages; International audience; For growing, crustaceans have to molt cyclically because of the presence of a rigid exoskeleton. Most of the crustaceans harden their cuticle not only by sclerotization, like all the arthropods, but also by calcification. All the physiology of crustaceans, including the calcification process, is then linked to molting cycles. This means for these animals to find regularly a source of calcium ions quickly available just after ecdysis. The sources of calcium used are diverse, ranging from the environment where the animals live to endogenous calcium deposits cyclically elaborated by some of them. As a result, crustaceans are submitted to an important and energ…
Dzīves kvalitāte bērniem ar atopisko dermatītu
2022
Atopiskais dermatīts pieder pie visizplatītākajām ādas slimībām pasaulē. Tā ir hroniska, alerģiska, iekaisuma ādas saslimšana, kas pārsvarā skar bērnus pirmsskolas vecumā. Dzīves kvalitātes rādītājs bērniem ar atopisko dermatītu ir būtisks parametrs, kas palīdz izvērtēt gan terapijas efektivitāti, gan bērna veselības stāvokli. Dzīves kvalitātes kontrole bērniem ar atopisko dermatītu, dot iespēju atrast problēmas, pie kurām tika pievērsta mazāka uzmanība un atrast iespējamos variantus, aprūpes taktikas uzlabošanai. Pētījuma mērķi. Analizēt dzīves kvalitāti bērniem ar atopisko dermatītu dažādās vecuma un dzimumu grupās, kā arī sakarībā ar slimību raksturojošiem faktoriem. Materiāli un metodes…
Personu un vietu attēlu datubāze
2018
Katru gadu ļoti liels ir to informācijas lietotāju skaits, kurus interesē bibliotēku, muzeju un arhīvu kolekciju ilustratīvais materiāls. Par to liecina gan attēlu izsniegums lasītavās, gan pieaugošais izgatavoto kopiju skaits. Vislielākā interese ir par personu un vietu attēliem. Lai risinātu attēlu pieejamības un saglabāšanas problēmas, 2003. gadā ar Kultūrkapitāla fonda (KKF) finansiālu atbalstu tika uzsākts Latvijas Universitātes Akadēmiskās bibliotēkas un Rakstniecības un mūzikas muzeja kopprojekts “Personu un vietu attēlu datubāze” un izveidota internetā pieejama tiešsaistes attēlu datubāze ar meklēšanas iespējām. Taču šī sistēma tika veidota ar tajā laikā pieejamajām iespējām, kas šo…
Augstskolu informācijas sistēmas modulis docētājiem
2022
Kvalifikācijas darba mērķis ir izstrādāt Latvijas Universitātes Informatīvās Sistēmas moduli docētājiem un dokumentācijā aprakstīt programmatūras prasības un projektējumu. Produkts izstrādāts Oracle datu bāzes serverī PL/SQL valodā, tīmekļa izstrādei lietots JavaScript, Vue.js. Sistēmas modulis nodrošina pārbaudījumu protokolu un citu elektroniski parakstāmo dokumentu pārvaldību. Augstskolu kursu docētāji var skatīt un labot pārbaudījumu kārtošanas datus, slēgt un nodot protokolus elektroniskai parakstīšanai. Studenti un darbinieki var skatīt parakstāmos un parakstītos dokumentus vienuviet. Sistēmas moduļa tīmekļa lapu veidošana balstīta uz izstrādātu tīmekļa elementu satvaru, kas nodrošina…