IBM Watson
@RomeoKienzler

the goal


the goal


you: 20 Watts
the goal


you: 20 Watts
IBM Watson: 200.000 Watts
the human brain

the human brain

Supervised Machine Learning

Supervised Machine Learning

y = \alpha + \beta_{1} x_1 +\beta_{2} x_2 +\beta_{3} x_2 +\beta_{4} x_4+\beta_{5} x_5
y=α+β1x1+β2x2+β3x2+β4x4+β5x5
Source: http://i.stack.imgur.com/GI5ax.png
functions beyond linearity

Neural Networks

Watson (distance view)

Feature Extraction










Training






GO !!!





Watson Architecture
Watson Architecture


Query Decomposition
- Focus: this Michigan City
- LAT: Michigan
- Keywords: 1894, C.W. Post, created, warm, cereal, drink, Postum, Michigan, City
In 1894 C.W. Post created his warm cereal drink Postum in this Michigan city
Parsing

Parsing
Watson Architecture



Primary Search
- Lucene and Indri search engine
- Preprocessing generated keyword->text based documents
- Keyword associated with found document added to candidate answer list
- Primary Search extended with all synonyms
Watson Architecture


Hypothesis Generation
Unlike most sea animals, in the sea horse this pair of sense organs can move independently of one another
- A Sea Horse can move its eyes independently.
- A Sea Horse can move its ears independently.
- A Sea Horse can move its skin independently.
- A Sea Horse can move its nose independently.
- A Sea Horse can move its tung independently.
Watson Architecture



Evidence Scoring
- Generated Candidate Answer is
- ESG'd
- PAS'd
- searched against corpus
- LATs used to determine whether a candidate answer is an instance of the answer types
Evidence Scoring


Oncology Expert Advisor

Oncology Expert Advisor
- Dynamic patient summary
- Evidence-based treatment options
- Care pathway advisory

- N=400 historical patient cases
- false-positive rate 2.9%
- false-negative rate 0.4%
- accuracy 82.6%
Watson in the Cloud
Do it yourself!
http://ibm.biz/joinIBMCloud
Personality Insights
Bibliography
- Wie lernen Kinder? Aktuelles aus der Gehirnforschung, Manfred Spitzer
- IEEE IBM Journal of Research and Development, Issue 3.4, This is Watson
- IBM Watson for Oncology
-
Superintelligence: Paths, Dangers, Strategies, Bostrom, Nick
- IBM Cloud
IBM Watson
By Romeo Kienzler
IBM Watson
A short overview how IBM Watson works
- 3,140