artificial intelligence needs explanation ai · 2020-06-12 · copyright librt 2019 3 fundamental...
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Copyright LibRT 2019
AIX
Why and how transparency increases the success of
Artificial Intelligence solutions.
Silvie Spreeuwenberg
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Artificial Intelligence needs eXplanation
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AI EXPLAINED
AI is a technology trend referencing any
development to automate or optimize tasks that
traditionally have required human intelligence.
Society is demanding transparency
StatisticsMachine learning
Rule-based systems
IT
Algorithms
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AI & IT
Since the invention of the computer, AI and IT have
been closely related.
A picture of the analytical machine. Description generated by Microsoft’s AI engine: A picture containing wall, indoor, chair, table.
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AI & IT
A machine could be programmed to solve
problems of any complexity or even compose music.
Lady Lovelace (1843)
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AI HYPE
Startups in AI raise more money.
Everyone will interact daily with AI-based within next
decade.
Gartner Hype Cycle for emerging technologies 2018
HYPE CYCLE FOR EMERGING TECHNOLOGIES, 2018
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THREE AI WAVES1
19901960
Connectionism Expert systems Machine learning
2020
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Why XAI is important?
I am not an expert
I am an expert
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WHAT AI CAN DO
The deceased artist Dali is talking to you, explaining about his life and making selfies with visitors as if
he is still alive.
Dali Museum, St. Petersburg, Florida
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DEMYSTIFY
It’s a lot more fun to think of robots that can think than to realize the cold
hard truth that they (currently) can’t.
Shamoon Siddiqui’s Shallow Thoughts About Deep
Learning.
WHAT IS THE HELLO WORLD EXAMPLE OF A
NEURAL NETWORK?
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A NEURON
Artificial Neural Networks are “biologically inspired.”
We have neurons in our brains (over 100 billion!) and they connect to each other in many interesting
ways.
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BASIC MATH
Algebra is solving equations with unknowns
(called “variables.”)
If you have one variable it is easy to solve… but the
more variables you add the more complex it get’s
https://medium.com/shallow-thoughts-about-deep-learning/why-deep-neural-networks-dont-actually-think-b5768f751f43
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STRATEGY
Try to come up with numbers for the
(potentially) tens of thousands of variables.
Since you can’t come up with numbers that
DEFINITELY work, it’s finding numbers that give
the fewest errors.
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ARCHITECTURE OF A SIMPLE NEURAL NETWORK
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EXAMPLE CASE
Hello world example of NN
Recognize the numbers 1, 2,3,4,5,6,7,8 and 9 in a
grid consisting of 64 pixels.
Youtube channel 3Blue1Brown
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ACHITECTURE64 input nodes
- one for each pixel -
64 hidden nodes- the knowledge -
9 output nodes- one for each number -
all nodes are connected to each other (not shown)
1
2
3
4
5
6
7
8
9
1 …….. 64 1 …….. 64
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Weights of the links are adjusted based on the
activation in the previous layer and the predicted
outcome.
1
2
3
4
5
6
7
8
9
1 …….. 64 1 …….. 64
LEARNING
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Perhaps a set of neurons is activated for
each horizontal line in the input.
1
2
3
4
5
6
7
8
9
1 …….. 64 1 …….. 64
KNOWING
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DEEP-NN
Multiple layers, multiple neural networks connected.
Lot’s of computing power.
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AI IS NOT…
The system that beat the best human players in the ancient game of Go was
REALLY good at… playing Go. That’s it.
It isn’t able to take that incredible expertise and
apply it to ANY other problem.
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WHAT AI BRINGS TO FINANCE ?
Real time transaction monitoring to detect fraud by data analysis of past
transactions, expert knowledge and machine
learning.
It is not acceptable to close an account based on the risk
score of a model that we don’t understand.
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Only 52%
of graduates get graduate-level jobs,
CIPD reveals
other type of jobs
https://www.recruitment-international.co.uk/blog/2017/11/ only-52-percent-of-graduates-get-graduate-level-jobs-cipd-reveals
48 % 52%
graduate-level jobs
Google’s algorithm that was trained to help them
selecting new hires turned out to be highly gender biased towards man.
AI FAILS
POOR DATA
BIASED DATA
MISSING FEATURES
MISSING SITUATIONS
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“Should I marry Ann?”
_David
“NO!”
_Oracle
“Nobody would say, ‘I'm voting for this guy
because he's got the stronger chin,’ but that, in fact, is
partly what happens.”
PsychologistKahneman,
Nobel prize 2002
HUMAN DECISION MAKING
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Why XAI is important?
It will be required
Better ROI
More trusted
Enhanced decision making
It is feasable
5 REASONS
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1Systems that explain themselves
have a better ROI
Explanations make a solution easier adaptable
to changes
Explanations increase the success rate of
AI solutions
1
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BUSINESS & ITIT
… has a tendency to make things more complex than
it really is.
Business … have a tendency to
easily defer their responsibility to IT.
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We can’t just use AI instead of understanding
but must under first and then add AI!
Troubled relationship with IT
The numbers in the above graph, based on the CHAOS Report from the Standish Group, list the percentage of IT projects from 2011 – 2015 that are delivered On Time, On Budget, with satisfactory result (called the Modern Resolution).
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Your business will be more trusted
2
Make more credible decisions
Being a responsible business
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MONITORING
TRANSACTIONS
BIG DATA
AI MODEL
LIQUIDITY BUFFERS
EXPLANATION
The financial sector is commonly held to a higher
standard as trust is essential for the system.
When it comes to AI, strong operational controls
could be more important then capital and liquidity buffers.
De Nederlandse Bank report on AI
in financial sector 2019
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Explanations enhance decision making3
Unwanted decision biases come to the surface
Missing commonsense knowledge is detected
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AI model presented with a foil makes the wrong
decision.
When it sees 'a cat in front of a dog house' it
concludes that it’s a dog.
When it sees a 'dog playing with a ball' it concludes
that it’s a cat.
etc.
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To accurately forecast the number of passengers on the first day of a holiday season you expect this
common knowledge to be part of the explanation.
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Explainable AI is feasible using a six-step approach
41. Get a shared
understanding of the domain
2. Understand the task and select the right scope
3. Collect the right data and improve its quality
4. Select AI technology that deliver results
5. Generate good explanations
6. Evolve the system over time
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Explainable AI is feasible using a six-step approach1. Get a shared understanding of the domain
Businesses that can state clearly who they target and
what it means to be successful are likelier to be
efficient, effective and successful in the
application of AI and decision support systems.
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Perhaps your organization is working on an enterprise
ontology or data dictionary?
These are good initiatives to align terminology
between departments. Hopefully your business
stakeholders are involved!
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Explainable AI is feasible using a six-step approach2. Understand the task and select the right scope
To collect the right data for your solution (the next step), you first have to
understand the decision task that you want to
support.
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Break-up the question into potential influencers and phrase them as a testable
hypothesis.
Test them using basic statistical analysis on the available data and create
a root-cause analysis.
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Explainable AI is feasible using a six-step approach3. Collect the right data and improve its quality
The good news about this decennium is that most
organizations are already collecting data.
Are we collecting the right data for our objectives?
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A model to predict the orientation (North, South or East West) of a highway in
the US based onthe Highway number will be
very complex....
while a model that is allowed to use the ‘feature’
indicating if the highway number is an even number (or not) will be very simple.
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Explainable AI is feasible using a six-step approach4. Select AI technology that deliver results
It is the task that determines which
technique should be used.
Use a hammer if you are dealing with a nail and don’t try the screwdriver because
it is available!
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Deterministic AI methods generate results for a
task using a recipe that is completely designed in
advance.
There are many problems that are non- deterministic by nature but can be well- supported using deterministic methods.
Non-deterministic methods generate re-
sults for a task based on patterns that are found
using advanced statistics and (big) data.
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XAI combines the technology of the three AI waves
DEEP LEARNING
NEURAL NETWERK
STATISTIC
EXPLAINABILITY
LE
AR
NIN
G P
ER
FOR
MA
NC
E
BAYESIANNETWERKS
MARKOVCHAINS
DECISION TREES
RULES
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Explainable AI is feasible using a six-step approach5. Generate good explanations
If the explanation is complicated, nonsensical
or is difficult to understand, the distrust towards the system’s decision will
increase.
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Instead we need to develop seperate models to support communication of
an explanation in a context
Accuracy, robustness and precision are not the way to convince a domain expert.
DEEP LEARNING
NEURAL NETWERK
STATISTIC
EXPLAINABILITY
LE
AR
NIN
G P
ER
FOR
MA
NC
E
BAYESIANNETWERKS
MARKOVCHAINS
DECISION TREES
RULES
DEEP LEARNING
NEURAL NETWERK
STATISTIC
EXPLAINABILITY
LE
AR
NIN
G P
ER
FOR
MA
NC
E
BAYESIANNETWERKS
MARKOVCHAINS
DECISION TREES
RULES
“Should I marry Ann?”
_David
“NO!”
_Oracle
MACHINE LEARNED MODEL EXPLANATION MODEL INTERACTION MODEL
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An explanation does not need to be complete
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22
Are we in a catch 22?
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Society is demanding transparency
People have ethical concerns
Governments prepare legislation demanding
explanations
5
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AI technology can be used for the good and the bad.
… it can fake images, fake videos and make fake news.
… it can detect lies and guide people to make better
decisions by using large amounts of data.
www.thispersondoesnotexist.com
www.fakenewschallenge.org
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1/3 of the population would like a computer saying:
"I love you"
2/5th of the population believe “AI can behave
morally”
1/4th of the population believes “AI will take over
the world”.
recent public opinion study on AI by Pega
I love you …
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Copyright LibRT 2019
People assign intentionality to systems whose internal workings they do not understand.
Philosopher, Deniel Dennet
"the computer says no", "the computer is not cooperative today", "he must be cleaned," "my computer loves to crash"
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Copyright LibRT 2019
3 fundamental rights of democracy are threatened:
1.Freedom of choice
2. Access to information
3.Equality of opportunity
European CommissionReport on trustworthy AI
July, 2019 Suggested readings and echoed or homogenized shared opinions provide us with a tunneled view based on our own patterns.
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Copyright LibRT 2019
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Copyright LibRT 2019
Make a 1 milion loan!
Are you sure?!
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Copyright LibRT 2019
Don’t make that loan.
Why?
KEEP THE HUMAN IN THE LOOP
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Copyright LibRT 2019
throwing
high low
boy
boy
girl
small
pinkplaying
ball
red
Yellow
gloves
hands
baseball
AIx
Artificial Intelligence needs explanation: pre-order now!
Discount code 20%AIX-BRPN-19
Follow meSilvie Spreeuwenberg
THANK YOU