|
|
Repurposing Grey Literature - Linking Research Data to Full-Text Publications: Some Preliminary Results
Farace, Dominic
This presentation deals with the research design and preliminary results of EPP, an Enhanced Publications Project carried out among a pool of over 280 authors in the International Conference Series on Grey Literature. In a way, this project seeks to circumvent the data vs. documents camp in the grey literature community by way of a middle ground provided through enhanced publications. Enhanced publications allow for a fuller understanding of the process in which data and information are used and applied in the generation of knowledge. The enhanced publication of grey literature precludes the idea of a random selection of data and information, and instead focuses on the human intervention in data-rich environments. Enhanced publications inherently contribute to the review process of grey literature as well as the replication of research and improved visibility of research results in the scholarly communication chain.
Fulltext: nusl-_3 -  PDF
Slides: nusl-_2 - PDF; nusl-_4 - PDF
Video: nusl-_1 -  MP4
|
|
|
Mapování ontologií a jeho vyhodnocování pomocí vzorů
Zamazal, Ondřej ; Svátek, Vojtěch (advisor) ; Vacura, Miroslav (referee) ; Pokorný, Jaroslav (referee) ; Štuller, Július (referee)
Ontology Matching is one of the hottest topic within the Semantic Web of recent years. There is still ample of space for improvement in terms of performance. Furthermore, current ontology matchers mostly concentrate on simple entity to entity matching. However, matching of whole structures could bring some additional complex relationships. These structures of ontologies can be captured as ontology patterns. The main theme of this thesis is an examination of pattern-based ontology matching enhanced with ontology transformation and pattern-based ontology alignment evaluation. The former is examined due to its potential benefits regarding complex matching and matching as such. The latter is examined because complex hypotheses could be beneficial feedback as complement to traditional evaluation methods. These two tasks are related to four different topics: ontology patterns, ontology transformation, ontology alignment evaluation and ontology matching. With regard to those four topics, this work covers the following aspects: * Examination of different aspects of ontology patterns. Particularly, description of relevant ontology patterns for ontology transformation and for ontology matching (such as naming, matching and transformation patterns). * Description of a pattern-based method for ontology transformation. * Introduction of new methods for an alignment evaluation; including using patterns as a complex structures for more detailed analysis. * Experiments and demonstrations of new concepts introduced in this thesis. The thesis first introduces naming pattern and matching pattern classification on which ontology transformation framework is based. Naming patterns are useful for detection of ontology patterns and for generation of new names for entities. Matching patterns are basis for transformation patterns in terms of sharing some building blocks. In comparison with matching patterns, transformation patterns have transformation links that represent way how parts of ontology patterns are transformed. Besides several evaluations and implementations, the thesis provides a demonstration of getting complex matching due to ontology transformation process. Ontology transformation framework has been implemented in Java environment where all generic patterns are represented as corresponding Java objects. Three main implemented services are made generally available as RESTful services: ontology pattern detection, transformation instruction generation and ontology transformation.
|
|
|
SPARQL plugin for Ontopia Knowledge Suite
Ovčáčík, Vlastimil ; Kliegr, Tomáš (advisor) ; Svátek, Vojtěch (referee)
Reader of this bachelor thesis will familiarize with two technologies of semantic web -- Topic Maps and RDF. In the first half of this document we can find principles, history and thoughts on near future of both technologies. There are explained necessary principles of both standards. Emphasis is placed on query languages SPARQL and TMQL. Object of this thesis is understanding differences and mutual aspects of both Topic Maps and RDF. This understanding is key for finding interoperability between these two technologies on semantic web. The second half of this thesis is aimed on implementation of sparql4ontopia - a plugin for Ontopia Knowledge Suite, which enables quering topic maps with SPARQL. This plugin utilizes Sesame project for SPARQL query evaluation and Nikunau tool from SesameTM project for mapping SPARQL on Topic Maps Data Model. Possibilities and limitations of this plugin are described. There is also description of sparql4ontopia development and implementation. Last chapter shed light on SPARQL endpoint and possible way of implementation into Ontopia Knowledge Suite.
|
|
|
Support of Semantics in CMS Drupal
Kubaliak, Lukáš ; Svátek, Vojtěch (advisor) ; Hazucha, Andrej (referee)
The work concern about the support of semantics in known content managing systems. It is describing the possibilities of use for these technologies and their public accessibility. We find out, that today's technologies and methods are in the state of public inducting. In the question of semantic support in CMS Drupal we developed a tool for extending its support of semantic formats. This tool allows CMS Drupal to export its information in a Topic Maps format. For this it uses the XTM file.
|
|
|
Metadata and searching information on the Internet
Hlaváčová, Tereza ; Sklenák, Vilém (advisor) ; Pinkas, Otakar (referee)
The aim of this work is to analyze the relationship of metadata and searching on the Internet. In the first part are presented metadata, namely meta tags, metadata schemas and two related projects - digital libraries and the Semantic Web. In the second chapter is introduced the history and development of the Internet search engines. Two search engines are analyzed in detail: Google and Seznam - especially their history, development and how they evaluate pages. The last part is devoted to the summary of the importance of metadata for searching on the Internet and possible future development of digital libraries and the Semantic Web.
|
|
|
Web interface for ontology similarity measures
Pichl, Ota ; Zamazal, Ondřej (advisor) ; Svátek, Vojtěch (referee)
Semantic Web is one of the most recent topics on the internet. The idea of Semantic Web is associated to informatics ontologies which can provide features for description of web knowledge. Ontologies than bring the feature of semantic annotation for data and knowledge on the internet. This work is focused on comparison of ontologies and determination of their similarity or dissimilarity. Determination of these similarities can be made with various types of methods like vector space measures or collection measures. It is appropriate to implement these methods due to problems and uncertainties which ontologies can bring. Ontology independence is one of the basic characteristics (open world assumption) and because of independence there can appear certain conflicts if exist two ontologies describing the same part of reality. There can be a problem when these two ontologies describe the same entity but with different label or in different structure. Nevertheless there are many other reasons for making these comparisons e.g. extension of semantic search engines or searching for similar ontologies which could be joined together. Solution of this problem can be found in ontology similarity measures. Currently there is no application like this which would provide methods for ontology measures. The main goal of this bachelor thesis is to create a web interface which will provide essential methods for determination of ontology similarity.
|
|
|
Ontologies represented in a relational database
Lučkaničová, Jekaterina ; Chlapek, Dušan (advisor) ; Tomášková, Barbora (referee)
Searching on the internet is still moving forward. The reason is very simple, more and more people use the internet to fint information, but they are often not satisfied with results. Growing body of information that requires large repositories of knowledge. Because of growing number of information stored in repositories , it is harder to get the resources you need. This work was created on the basic of knowledge about the semantic web. It seeks to familiarizethe general public about ontology, which contents the meanings of words and allows the use of these technologies. The work has a practical part in which the proposal as an ontological storage sites, as well as a repository built on a relational database.
|
|
|
What is hidden behind searching or Searching Session NTL 2011
Národní technická knihovna
Seminář je realizován v rámci projektu Moderní informační a komunikační technologie v knihovnictví s podporou programu Ministerstva kultury "Veřejné informační služby knihoven – podprogram Mimoškolní vzdělávání knihovníků". Cílem projektu je poskytnout teoretické znalosti a praktické dovednosti ve využití moderních informačních a komunikačních technologií především v oblasti služeb knihoven. Seminář "Co se skrývá za vyhledáváním aneb Searching Session NTK" je určen pracovníkům různých typů knihoven a informačním specialistům.
Fulltext: PDF
|
|
|
Distributed Evaluation of Web Source Quality
Řimnáč, Martin ; Špánek, Roman
The paper descries an approach using a reputation system to evaluate a quality of data provided by data sources on the Internet. The approach is designed to be fully distributed and experiments show that such approach can be used to simplify user decision about which source is more reliable.
|
|
|
Publishing the vocabulary of the types of grey literature as linked data
Mynarz, Jindřich ; Pejšová, Petra ; Simandlová, Tereza ; Labuda, Radim
The formulation of the vocabulary of the types of grey literature in RDF (Resource Description Framework) provides an explicit conceptualization of the domain of grey literature. This type of modelling harnesses the expressive power of ontology languages for RDF data format and its flexible and extensible nature. Formalized in this way, the vocabulary serves as a means to describe grey literature resources in a structured, machine-readable manner. Adopting linked data publishing model affords the re-use and light-weight integration of the vocabulary with other vocabularies via links. The vocabulary built in this way can re-purpose existing vocabularies and re-purpose their concepts by putting them in a new context. This may lead to tighter integration of grey literature within the Web and make it easier to be discovered.
Fulltext: PDF
|
guest ::
