download-pdfMARKET NEED

There is an information overload from unstructured text used as business leads (knowledge on customers, markets  or technologies) from which users need to find the Facts:  the relevant Entities, the Links between Entities and their evolution.

Extracting practical information from text is a complex task requiring human understanding of semantics. The Knowledge Graph (KG) technologies bring a competitive edge as part of the Semantic Web. KGs can capture the network of Relationships between Entities in a graph structure, while also building a Knowledge Base (KB), designed to enable automated reasoning.

Existing open-access industrial knowledge graphs have mapped billions of entities from large scale web data and use as KB various expert-built ontologies, graph databases or triple stores. The use of wide scope platforms require expert knowledge and can be time and computationally expensive – as very large KG become difficult to query, while domain-specific understanding of text may require generating new models.

TECHNOLOGY SOLUTION

The KnowText demonstrator performs automated Knowledge Graph extraction from a collection of texts and enables users to visualize and query the KG and its background ontology. Facts extracted as <Subject, Predicate, Object> triples are represented as a graph and linked to an automatically extracted OWL Ontology featuring 15 Classes of Named Entities and one Class for domain vocabulary words, within a basic schema.

Both the extracted triples and the OWL ontology files can be downloaded and further explored.

The KnowText visualisation tab, explained.

The KnowText workflow.

APPLICABILITY

The KnowText demonstrator provides:

  • Automated generation of a domain specific KG (within a company domain of interest) using as information pool only data uploaded by the user;
  • Interactive visualisations of the text collection as a Knowledge Graph (filtering & exploration of Entities & facts);
  • Easy query methods based on Entities & Relations search or free typed text.

KnowText is a python based web application: portable, flexible, scalable, accessible via a web link, easy to use by non-expert users.

RESEARCH TEAM

  • Dr. Bojan Bozic, TU Dublin
  • Dr. Tamara Matthews, TU Dublin
  • Mr. Jayadeep Kumar Sasikumar, TU Dublin
  • Mr. Abhimanyu Gangwar, TU Dublin