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Semantic Web Summit EastNovember 16 & 17, 2010 – Boston, MA
What is Semantic Search?
Bryan BellVice President, Enterprise Solutions
[email protected]+1.847.508.7938
www.expertsytem.net
Largest, fastest growing semantic software company worldwide
• What is semantic search?
• Why is a semantic network important?
• What is a semantic network?
• Why does a semantic platform excel?
• Precision vs. Recall and why it matters.
• Disambiguator demonstration
• Quick demonstration of a leading Question & Answer system.
Today’s topics: 20 minutes
• Ways to leverage semantic technology in your
organization
What is semantic search?
Semantics is the science of the meaning that lies beneath words and an understanding of the
relationships between words.
Same word – Different meaningsJaguar = car
jaguar = animal
Jaguars = football team
Different words – Same meaningDisability Legislation = Equal Opportunity Law
Different words – Related meaningsOrganization = company
Organization = trade union
Organization = charity
…because language is too ambiguous.
Why is a semantic network important?
What is a semantic network?
It is a complex map of associations and meanings of words:• Includes all definitions of all words.
• Include relationships among all words.
• This enables both high precision & high recall.
The quality of results is directly related to the
complexity and richness of the network.
-- and --The ability to PROPERLY
ANALYZE words.
4 Requirements Definition Example
Morphological Analysis understand word formsdog, dog-catcher, and doggy-bag are closely related
Grammatical Analysisunderstand the parts of
speech
"There are 40 rows in the table" uses rows as a noun, vs. "She rows 5 times a week" uses rows as a verb
Logical Analysisunderstand how words
relate to other words
“Davey Jones, represented by attorney Daniel Stanley, is married to Rebecca Carter". Rebecca is married to Davey not Daniel.
Semantic Analysis (disambiguation)
understand the context
of key words
"I used chicken broth for my soup stock" uses stock in the context of food, vs. "The company keeps lots of stock on hand" uses stock in the context of inventory.
What does properly analyzed mean?
Why does a Semantic Platform excel?The answer is in primary measures of
Information Management
#1 – Precision (a measure of exactness)
Retrieving a high level of accurate results
that are relevant to your search.
#2 – Recall (a measure of completeness)
Retrieving a high percentage of relevant documents.
Locating what applies.
Keyword and math based technology can achieve one but not both.
Semantic Disambiguator
The semantic understanding of words in context is a primary key to success.
Semantic technology works at a real conceptual level.
Automated Q&A meets semantics
- LIVE Demonstration -
50,000 questions / week = 26,000,000 questions annually
93% accuracy
No human intervention
Multi-language deployment
R.O.I.$10 savings for each question
answered automatically.
Ways to leverage semantics in your organization.
Web site search
Internal search
Knowledgeidentification & extraction
Web based self-help solutions
E-mailsecurity
Sentiment Analysis
Taxonomy developement
Extending Ontologies
Competitive Intelligence
CollaberationExpert finder
Help Desk / 800#operator support
IntelligenceHomeland Security
Research & Development
Data securityPII & PHI
Auto-Classification
Application areas
The future of semantics• Semantics is a revolutionary approach to the management of unstructured information.
• Keyword, statistics and shallow linguistics have reached their plateau. There are no significant developments possible, while the deep semantic understanding of content has a wide variety of applications for growing in many directions.
• This means that semantic has the potential to become a pervasive technology.
• The sooner you adopt the further ahead you will be. There will be a learning curve. Don’t let that slow you down.
Semantics and why it matters.
Thank you.
Bryan BellVice President, Enterprise Solutions
[email protected]+1.847.508.7938
www.expertsytem.net
Largest, fastest growing semantic software company worldwide
