Search results for "query"
showing 10 items of 125 documents
ScaleSem : model checking and semantic web
2012
The increasing development of networks and especially the Internet has greatly expanded the gap between heterogeneous information systems. In a review of studies of interoperability of heterogeneous information systems, we find that all the work in this area tends to be in solving the problems of semantic heterogeneity. The W3C (World Wide Web Consortium) standards proposed to represent the semantic ontology. Ontology is becoming an indispensable support for interoperability of information systems, and in particular the semantics. The structure of the ontology is a combination of concepts, properties and relations. This combination is also called a semantic graph. Several languages have bee…
An ontology-based decision support system for interventions based on monitoring medical conditions on patients in hospital wards
2014
Masteroppgave i Informasjons- og kommunikasjonsteknologi IKT590 Universitetet i Agder 2014 In this project we present our research and implementation of an ontology-based clinical decision support system, which is supported by Sørlandet Sykehus Kristiansand. We discuss the generic technology of designing decision support systems as well as the practical implementation in our project. Firstly, we design the system structure using UML in Eclipse, based on which, the system is built in Protégé using ontology techniques. And then patients’ information and clinical rules are added in the system as the form of individuals. Finally, SPARQL query is used to query for the decisions based on the calc…
Spatialization of the Semantic Web
2012
syntax for Horn-like rules. The SWRL as the form, antecedentconsequent, where both antecedent and consequent are conjunctions of atoms written a1^ ... ^ an. Atoms in rules can be of the form C(x), P(x,y), Q(x,z), sameAs(x,y), differentFrom(x,y), or builtIn(pred, z1, ..., zn), where C is an OWL description, P is an OWL individual-valued property, Q is an OWL data-valued property, pred is a datatype predicate URIref, x and y are either individual-valued variables or OWL individuals, and z, z1, ... zn are either data-valued variables or OWL data literals. An OWL data literal is either a typed literal or a plain literal. Variables are indicated by using the standard convention of prefixing the…
Tīmekļa lietotnes izstrāde ar Java, Oracle DB un JavaScript
2018
Tīmekļa lietotnes mērķis ir atvieglot informācijas pārskatīšanu un strukturēšanu pēc tīmekļa lietotnes lietotāju vajadzībām. Tīmekļa lietotne paredzēta kā daļa no projekta, kas tiek izstrādāts uzņēmumā “Exigen Services Latvia”. Tīmekļa lietotne ir rīks, kurā lietotāji var veidot biznesa datu attēlošanas skatus, tos strukturējot vēlamajās informācijas grupās un apakšgrupās. Izveidotajām informācijas grupām iespējams mainīt izmērus un pozīciju interneta pārlūkprogrammas logā, kā atskaites punktu ņemot visu informācijas grupu vecāka elementu. Attēlošanas skatam iespējams piešķirt lietotājam vēlamo nosaukumu un to saglabāt datubāzē atkārtotai izmantošanai. Attēlošanas skatus iespējam meklēt pēc…
Interneta veikals un noliktavas pārvaldības sistēma
2016
SIA “BIOFARMA” internetveikals un noliktavas sistēma ir tīmekļa lietojumprogrammatūra, kas ļauj uzņēmuma klientiem ērti iepazīties ar uzņēmuma katalogu, uzzināt vairāk par uzņēmumu un veikt pasūtījumus. Uzņēmuma darbinieki spēj pārvaldīt veikala saturu, ievadīt informāciju par noliktavas stāvokli, veidot un drukāt pavadzīmes, kā arī ievadīt papildus uzņēmumam aktuālu informāciju. Šī sistēma aizvieto pašreizējo noliktavas pārvaldības risinājumu un optimizē uzņēmuma darbību. Sistēma tika izstrādāta ar Laravel, jQuery, Bootstrap un citiem atvērtā pirmkoda rīkiem.
Historialliset kartat ja JYX-julkaisuarkisto
2015
A web search methodology for different user typologies
2009
Search engines and directories are the main tools used to find desired information into the ocean of digital contents that is the Web. However, they are not presently able to understand the user specific needs and starting knowledge because their inability to simulate the processes of human mind. Natural Language Processing, Folksonomy, Semantic Web and Serendipitous Surfing are some of the recent research fields towards understanding of human natural language and in general of real user needs. This work aims to add one step more to this evolution path by presenting a new search methodology that allows users to create new knowledge paths on the web based on their specific requirements. Thus…
Explaining Causes Behind SQL Query Formulation Errors
2020
This Full Research Paper presents the most prominent query formulation errors in Structured Query Language (SQL), and maps these errors to their cognitive explanations. Understanding query formulation errors is a key to teaching SQL. more effectively. However, studies on what kind of errors novices struggle with are relatively scarce when compared to, for example, programming languages. Although committing errors is a crucial part in learning, some errors are relatively easy to fix, and their commonness is not necessarily an indication of their difficulty. Other errors, however, halt the learning process, and are never fixed by the query writer. Using a previously established error taxonomy…
TB-Structure : Collective Intelligence for Exploratory Keyword Search
2017
In this paper we address an exploratory search challenge by presenting a new (structure-driven) collaborative filtering technique. The aim is to increase search effectiveness by predicting implicit seeker’s intents at an early stage of the search process. This is achieved by uncovering behavioral patterns within large datasets of preserved collective search experience. We apply a specific tree-based data structure called a TB (There-and-Back) structure for compact storage of search history in the form of merged query trails – sequences of queries approaching iteratively a seeker’s goal. The organization of TB-structures allows inferring new implicit trails for the prediction of a seeker’s i…
Dati kā ontoloģija - glabāšana, vaicāšana, vizualizācija
2014
Anotācija Promocijas darba centrālā tēma ir semantiski dati un to lietojums datu atlasē un sistēmu izstrādē. Darba centrālā tēze ir “Semantiskā Latvija” – ontoloģijas kā vienojošs aspekts. Tās tiek publicētas, ir pieejama platforma, kas interpretē ontoloģiju un ļauj tajā ievadīt un labot datus, ir pieejams grafisks rīks, kas ļauj sastādīt grafiskus vaicājumus pār izveidotajiem datiem. Darbā ir izstrādāta grafiska vaicājumu valoda, ar kuras palīdzību var sastādīt grafiskus vaicājumus pār semantiskiem datiem. Vaicājumi tālāk tiek tulkoti uz SPARQL vaicājumu valodu. Mēs esam pierādījuši, ka vaicājumu valoda ir saprotama un uzlabo lietotājiem lasāmību. Vaicājumu valodai ir izstrādāts arī eksper…