Studying the Cohesion Evolution of Genes Related to Chronic Lymphocytic Leukemia Using Semantic Similarity in Gene Ontology and Self-Organizing Maps
This paper offers an interesting overview on the application of some of PERICLES results in the biomedicine domain. In particular, this publication deploys an ontology-based semantic similarity combined with self-organizing maps for studying the temporal evolution of cohesion among Chronic Lymphocytic Leukemia (CLL) -related genes and the extracted information. More information on the open-source tool […]
Digital Preservation Based on Contextualized Dependencies
This paper proposes a method that considers the preservation of a number of interdependent digital entities, including documents, in conformance with context related information. A change that influences one of these objects can be propagated to the rest of the objects via analysis of their represented dependencies.
On the Preservation of Evolving Digital Content – The Continuum Approach and Relevant Metadata Models
This paper describes a model-driven approach, termed the Continuum approach, in which models rather than the digital objects themselves can be analysed. In such setting, the use of appropriate metadata is very important, we therefore outline the PERICLES Linked Resource Model, an upper ontology for Modelling Digital ecosystems, and compare and contrast it to the […]
User-Driven Ontology Population from Linked Data Sources
Populating ontologies manually is a time-consuming and error-prone task and, thus, research has shifted its attention to automatic ontology population methodologies. The paper presents PROPheT, a novel ontology population tool for retrieving instances from Linked Data sources and subsequently inserting them into an OWL ontology. The tool offers entirely novel ontology population functionality to a […]
The PERICLES Process Compiler: Linking BPMN Processes into Complex Workflows for Model-Driven Preservation in Evolving Ecosystems
Understanding and reusing archived digital information after a decade of technological advancements, constant developments and changes to software and hardware is a very complex and time consuming task. Without a clear documentation and records of changes, research on the creation and modification of information systems and its associated data is almost impossible. To ease these […]
A Framework for Measuring Semantic Drift in Ontologies
Semantic drift is an active field of research, aiming to identify and measure changes in ontologies across time and versions, closely related to ontology evolution. However, practical and widely adopted methods that are directly applicable to Semantic Web constructs have yet to emerge. Building upon and extending existing work, this paper presents a framework for […]
SemaDrift: A Protégé Plugin for Measuring Semantic Drift in Ontologies
Semantic drift is an active research field, which aims to identify and measure changes in ontologies across time and versions. Yet, only few practical methods have emerged that are directly applicable to Semantic Web constructs, while the lack of relevant applications and tools is even greater. This paper presents a novel software tool developed in […]
A hybrid framework for news clustering based on the DBSCAN-Martingale and LDA
A novel density-based news clustering framework is introduced, using the well-established Latent Dirichlet Allocation and the novel “DBSCAN-Martingale” method.
Semantic Integration of Web Data for International Investment Decision Support
In this paper, a decision support system that semantically aggregates information from many heterogeneous web resources and provides guidance to SMEs for their potential investments, is presented.
Status of CELLAR: Update from an IETF Working Group for Matroska and FFV1
The Internet Engineering Task Force (IETF) has chartered a working group. It is named CELLAR and aims to develop specifications for a lossless audiovisual file format for use in archival environments.