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The Ultralink – an expert system for contextual hyperlinking in knowledge management
Manuel C. Peitsch
Head of Systems BiologyNovartis Institutes for Biomedical Research
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A Knowledge Space
0.5 1.50.5 1.50.5 1.5
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Connecting the Knowledge Bodies (requirements)
Intelligent integration of heterogeneous data to enable “Seamless Navigation”:
One-stop shop.
Re-useable, in any Web and Office application.
Intelligent, i.e. knows about biology, medicine, chemistry, diseases, business, people, etc…
On demand and easy to use.
Configurable.
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Connecting the Knowledge Bodies (Components)
Indexing of large heterogeneous data collections (databases, full texts) to enable semantic expansion.
Information Retrieval and Extraction, entity recognition, semantic enrichment.
Knowledge Map (navigating the conceptual network).
Terminology Hub (thesauri and ontologies).
Ontology-associated business rules.
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Creating references (Terminology Hub)
Different knowledge repositories have different ways to encode a concept:
Registry Number
Unique Internal ID
Concept Identifier
Enumerating terms
Just using different terms without any constraintsSearching a term in source A and B may lead to different
results although the underlying concepts exists in both sources (false negatives in IR and IE)
Terminology Hub ensures coherent mapping
Between coding systems
Between different representation levels (e.g. ID vs. Concept)
Between local terms and global terms
Over 8 GB of cross-referencing information
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What entities constitute our Terminology?
Chemical entities – IUPAC names, trivial names, trade names, INNs, compound codes, ligands.
Biological entities – targets, genes/protein, modes of actions…
Diseases, Indications, Side Effects, Contraindications
Institutions, Affiliations, People
Geographic locations
…
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The UltraLink : a revolutionary tool to navigate the “Knowledge Space”
1. Zoning This process uses our (meta-) knowledge about information
structure, and tags the relevant contexts of the documents or database records.
2. Identification of terms based on the terminology or on regular expression
Term Identification: identify the lexical items in a text, relate them to a term and retrieve the corresponding reference term via thesaurus relations.
Concept Identification: identify the concept related to the reference term(s).
Type Assignment: Assign the concept type related to a concept identifier
3. Extraction and normalization
4. Get list of rules to apply Verifiers Application of rules
5. Display
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Creating the Ultralink
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UltraLink Examples
Treatment of ambiguities
WILMs TUMORDISEASE Wilms' tumor => nephroblastomaGENE NAME WT1TARGET Wilms' tumor
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UltraLink Examples
Term extraction / Normalization -> Examples (mtor, mammalian target of rapamycin)
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UltraLink Examples
Term to UltraLink:
granulocyte - macrophage colony stimulating factor
Concept Type: TARGET
Normalized term (non exhaustive):
Granulocyte-macrophage colony-stimulating factor
Synonyms:
colony stimulating factor 2
Colony-stimulating factor, CSF ,GCSF, GM-CSF
Granulocyte macrophage colony stimulating factor
Molgramostin, Sargramostim
Local terms (non exhaustive list of examples):
EMBL e.g. AC004511, AF373868, …
Pubmed e.g. 1569568, 1737041, …
NCBI e.g. 10090, 10116, 9606
GO e.g. GO:000512, GO:0019221, …
UniProt e.g. P01587, …
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Link to Pathway information from TCF7L2
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Further query, Genome/Proteome Information
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Access to tools and reagents
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MetaCore Map containing FZD4 (frizzled 4)
Proteins where
antibodies are available
are marked with
an additional icon
Mouse-over
shows
specificity
Hyperlink
to
Antibodies
Web Report
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UltraLink Examples
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UltraLink Examples
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The Ultralink can be call from the Internet Explorer
Internet Explorer IntegrationGPS Add-in
Internet Explorer IntegrationGPS Add-in
Web Page Tagged Document
2
Sends the document for
analysis
3
Gets back tagged parts
1
User requests for analysis
4
Injection of specific HTML
tags
Web
Serv
ice (
WS
DL)
Web
Serv
ice (
WS
DL)
GPS Lexical Analysis Server ToolsGPS Lexical Analysis Server Tools
TerminologyTerminology
Lexical ExtractionLexical Extraction
ZoningZoning
TaggingTagging
DocStructuresDocStructures
Meta-RulesMeta-Rules
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Activation UltraLink
Annotations on any web page
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Web
Serv
ice (
WS
DL)
Web
Serv
ice (
WS
DL)
The Ultralink is integrated with Microsoft Office
Microsoft Smart TagExtraction
Microsoft Smart TagExtraction
Office Document
Tagged Document
2
Sends the document for
analysis
3
Gets back tagged parts
1
User requests for analysis
GPS Lexical Analysis Server ToolsGPS Lexical Analysis Server Tools
TerminologyTerminology
Lexical ExtractionLexical Extraction
ZoningZoning
TaggingTagging
DocStructuresDocStructures
Meta-RulesMeta-Rules
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Annotations on full text in a Word document
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Ultralinks can be coded into any application
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Acknowledgements
Thérèse Vachon
Martin Romacker
Pierre Parisot
Nicolas Grandjean
Brigitte Charpiot
Jean-Marc von Allmen
Daniel Cronenberger
Olivier Kreim
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Knowledge Space and GPS Navigator
Backup slides
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What constitutes the Knowledge Space
Ultralinker
SemanticSearch
Text Mining
Analytics
Internet
Other ResearchDocumentation
Chemistry
Biology
Literature
Comp. Inf.
Bioinformatics
Meta Data K map
ThesauriiOntologies
Rules
Definedworkflows
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Data Analysis – Protease modulators in CI DBs July 2004 - ADIS & Pharmaprojects
Univariate - Companies Univariate - MOA
Univariate - Diseases conditionned by Companies Clustering Diseases -MOAs
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Graph Navigator – Protease modulators in CI DBs July 2004 - ADIS & Pharmaprojects
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Clustering