Results 61 to 70 of about 1,055,752 (313)

Towards valid and reusable reference alignments — ten basic quality checks for ontology alignments and their application to three different reference data sets

open access: yesJournal of Biomedical Semantics, 2012
Identifying relationships between hitherto unrelated entities in different ontologies is the key task of ontology alignment. An alignment is either manually created by domain experts or automatically by an alignment system.
Beisswanger Elena, Hahn Udo
doaj   +1 more source

Algebras of Ontology Alignment Relations [PDF]

open access: yes, 2008
Correspondences in ontology alignments relate two ontology entities with a relation. Typical relations are equivalence or subsumption. However, different systems may need different kinds of relations. We propose to use the concepts of algebra of relations in order to express the relations between ontology entities in a general way. We show the benefits
openaire   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

User Validation in Ontology Alignment

open access: yes, 2016
User validation is one of the challenges facing the ontology alignment community, as there are limits to the quality of automated alignment algorithms. In this paper we present a broad study on user validation of ontology alignments that encompasses three distinct but interrelated aspects: the profile of the user, the services of the alignment system ...
Dragisic, Zlatan   +5 more
openaire   +3 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Multimatcher Model to Enhance Ontology Matching Using Background Knowledge

open access: yesInformation, 2021
Ontology matching is a rapidly emerging topic crucial for semantic web effort, data integration, and interoperability. Semantic heterogeneity is one of the most challenging aspects of ontology matching.
Sohaib Al-Yadumi   +4 more
doaj   +1 more source

Meaning Management: A Framework for Leadership Ontology [PDF]

open access: yes, 2019
Leadership is a multifaceted and complex subject of research and demands a sound ontological stance that guides studies for the development of more integrative leadership theories.
Oral, Muhittin
core   +1 more source

Comparison of ontology alignment systems across single matching task via the McNemar's test

open access: yes, 2018
Ontology alignment is widely-used to find the correspondences between different ontologies in diverse fields.After discovering the alignments,several performance scores are available to evaluate them.The scores typically require the identified alignment ...
Atashin, Amir Ahooye   +3 more
core   +1 more source

Dynamic Change Evaluation for Ontology Evolution in the Semantic Web [PDF]

open access: yes, 2008
Changes in an ontology may have a disruptive impact on any system using it. This impact may depend on structural changes such as introduction or removal of concept definitions, or it may be related to a change in the expected performance of the reasoning
Doran, Paul   +4 more
core   +1 more source

Data Linking with Ontology Alignment [PDF]

open access: yes, 2012
It is a trend to publish RDF data on the web, so that users can share information semantically. Then, linking isolated data sets together is highly needed. I would like to reduce the comparison scale by isolating the types of resources to be compared, so that it enhances the accuracy of the linking process.
openaire   +2 more sources

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