The Healthdirect Australia Story

The Healthdirect Australia Story

James Humffray

Development of a semantic framework to support the Australian population in their time of need

Florian Huber

Contents

What is Healthdirect Australia?

What issues do we want solved?

Semantic and content platform

Australian Health Thesaurus (AHT)

Benefits of AHT

Future directions

Healthdirect Australia

Ensuring all Australians have access to the rightadvice on the appropriate care for their health issue

when they need it and where they need it.

The issueHow to ensure all Australians have access to the right advice on the appropriate care for their health issue when they need it and where they need it.

How to provide semantic capability to support the Australian population in their time of need?

Semantic and content platform

The main challenges were:

• Multiple websites that draw their content from multiple sources

and are published across multiple devices.

• The "healthcare" domain is a confusing topic for many, filled with

Latin names for diseases and industry jargon making it difficult

for people to access and understand information

• Accurate, automatic content classification

• Support the publishing workflow for both edited and

harvested/ingested/syndicated content

Content platform

Used components:

PoolParty Thesaurus Server (PPT)

● Vocabulary server to manage taxonomies and thesauri

● Use, manage and publish linked data and large

enterprise knowledge graphs

● Based on standardized linked data technologies

PoolParty Extractor (PPX)

● Scalable, high availability

● Powerful entity extractor and text mining service

PoolParty API

● Fast and unsophisticated integration into enterprise

systems

Enterprise Server

Development of the Australian Health Thesaurus

• Department of Health Thesaurus• Local thesauri/taxonomies• Symptom Check• International thesauri/taxonomies

• MeSH• DSM-V• ICD10

• Common search terms (Google Analytics)

• Search terms with no results (Hitwise)

• Across health information industry• Ongoing maintenance

Over 5000 changes since Feb 2014

Information Partnership

• Currently 120 information partners

▪ Peak bodies

▪ Government agencies

▪ Specialist health organisations

▪ General health organisations

• Healthdirect currently has 25,000 content links

Content publication process

Benefits of AHT

How we are using PoolParty

Improves search for users

Search on “orbital neoplasm” returns results on “eye cancer”

Benefits of AHT

How we are using PoolParty

Display related or similar content

Benefits of AHT

How we are using PoolParty

Provide filters to narrow search

Used for Auto-suggestion

Benefits of AHT

How we are using PoolParty

Concepts mapped to Lifestage facet

Benefits of AHT

How we are using PoolParty

Concepts mapped to relevant videos

Benefits of AHT

How we are using PoolParty

Concepts mapped to promotable websites

Benefits of AHT

How we are using PoolParty

Concepts mapped to relevant information partner display

Benefits of AHT

How we are using PoolParty

Classification applied to images, using third-party DAM tool

Benefits of AHT

How we are using PoolParty

Classification mapped to a Symptom Checker flow

Benefits of AHT

Summary

Australian Health Thesaurus (AHT) and PoolParty are integral to our search and content management strategy!

Requirements and challenges

• Conversion of taxonomies: transformation of AHT to SKOS, linking AHT and MeSH.

• Semantic search: dealing with semantic concepts as part of indexing and search applications built on Solr.

• Staging architecture: provide separated development and production environments for thesaurus management and usage. Mastering the synchronization of environments.

• High availability of services: guarantee high availability of knowledge models for production environment.

• Continuous integration of services: integration of PoolParty components in the sophisticated continuous integration workflow of Healthdirect.

Conversion of taxonomies

Using the knowledge graph for semantic search

… use the relationships

… use the labels

Staging architecture

High availability of Extraction services

Future directions

Using classifications to determine publishing channel

Healthdirect

PregnancyBirthBaby

MindHealthConnect

MyAgedCare

Others as required

Future directions

Linking to other thesauri

● Australian Pictorial Thesaurus (APT)

● Australian Medicines Terminology (AMT)

● SNOMED-CT-AU

Future directions – Visualisations- Tag clouds

Future directions - new information model

Future directions - LOD

Future directions – Visualisations

Thank you

Questions?

Contact

James Humffrayjames.humffray@healthdirect.org.auhttp://au.linkedin.com/pub/james-humffray/7/9b/9bb

Florian Huberf.huber@semantic-web.athttp://at.linkedin.com/pub/florian-huber/68/6b3/b63/