google leergang wiskunde onderwijs
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Praktijkverhalen ter inspiratie van het vernieuwen van het wiskunde onderwijsTRANSCRIPT
De praktijk van de wiskundige optimalisatie Google leergang vernieuwing wiskundeonderwijs
John Poppelaars
januari 2014
Weer een millennium probleem opgelost!
Wiskunde is super actueel!
Van wandelingen door de stad..
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..naar de kortste weg willen vinden om…
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..niets te willen missen.
TSP China: 71,009 steden
Wiskunde verslaat de wet van Moore!
7
9
ORTEC Company facts
10
ORTEC Netherlands (1981)
ORTEC France (1993)
ORTEC Belgium (1997)
ORTEC Germany (1998)
ORTEC USA (2000)
Customers: 1550+ Countries: 40+ Turnover: €60M+ Years active: 30+
Transport Retail Professional services
Sports Health Oil, Gas and Chemicals
Manufacturing and Construction
ORTEC Switzerland (2007)
ORTEC Romania (2008)
ORTEC United Kingdom (2008)
ORTEC Singapore (2009)
ORTEC Australia (2010)
Industry focus
Solutions, facts, and results
Production
De perfecte schaatswereld een matrix?
11
Vaststellen probleem Oplossen van het probleem Communicatie en
implementatie
Analytisch project = gestructureerde denkactiviteit
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Fra
min
g
Data
verz
am
ele
n
&
Data
analy
se
Modelb
ou
w
&
Model valid
atie
Scenario’s
&
Gevoelig
heid
sanaly
se
Com
munic
atie
&
Im
ple
menta
tie
Uit vele vaatjes tappen
Statistiek
Simuleren & Voorspellen
Heuristieken
Exacte Methoden
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Modelleren
Is
Een
Kunst
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De praktijk: Optimalisatie bij TNT Express
Express Complex
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Network
reconfigurations
Regulations
Highly volatile
demand
Tight service
requirements
TNT ambitie
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Betere
service
Unit cost
reduction Beter & sneller
op feiten gebaseerd
beslissen
What is the best network?
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Once a week:
Low cost, low service
Each day:
High cost, high service
= =
The hub and spoke alternative
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Each day: low cost, high service
Visualizing the network performance proved a goldmine of opportunities
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Volume information Italian network
MCL, savez-vous réellement ce que vous décidez?
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Jouer? http://tnt-ortec-game.nl
Hoge nood
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Stap voor stap
ROAD optimisation model (between all depots)
1
AIR optimisation model (airports to hubs + hub to hub)
2
PUD optimisation model (pickup and delivery)
3
Warehouse calculation model 4
Infrastructure and service scenario 0
Optimalisatie in de boardroom
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Scenario examples
(on randomized data)
1. Low
Cost 95%
2. Medium
Cost 79%
3. High
Cost 72%
4. Extreme
Cost 62%
Service impact
Overleven
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TLL
TKU HEL
ARN ORB
VST
SVG
OSL
GOT
BLL
MMX
BFS
DUB
ORK
SNN
STN
CWL
EMA
MME
EDI
LPL
BCN
VIT
MAD
VGO
OPO
LIS
SVQ
VLC
ZAZ
LIN
CIA
BLQ
CTA
LYS
TLS
BSL
GVA
RNS
MRS
GDN
WAW
KTW NUE
MUC
ERF
TXL
PRG
BRQ
VIE
BUD
LJU
IST
ATH
OTP
SOF PSR
TSF
HAJ
BOD
CDG
X
X
X
X
X
X
X
X
X
X
X
X
Airport closure
New airport
Unchanged airport
X
GO-Program
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Cumulative
savings
from 2008-2011:
€ 207
mln
Communities
of Practice
GO-
Academy
Optimization
solutions
Edelman award 2012
Tom’s ladder…
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Shift from information to intelligence economy
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@ORatWork
www.john-poppelaars.blogspot.nl
Reading material
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Specialization
Logistics
Supply Chain Optimisation
Risk Management
Years of Experience: 23
Education
Erasmus University (NL)
Econometrics (MSc)
Selected Experience Background
Curriculum Vitae John Poppelaars
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John Poppelaars is Director of Consulting for the ORTEC
Consulting Group, a business division of ORTEC. John is a
specialist in the field of logistics, supply chain optimization, and
workforce planning and scheduling, and a passionate proponent
of Operations Research as a key business enabler. Throughout
his 23 year career, he has applied the business maxim of
'improving decision-making quality' to numerous projects
across a myriad of industries in order to support clients to
optimize their businesses with the very latest optimization
techniques.
John was part of the team of TNT Express, ORTEC and Tilburg
University that was elected winner of the INFORMS Franz
Edelman Award
@ORatWork
Functional Expertise
Supply Chain Design and Optimization
Transport and Distribution optimization
Workforce Planning & Scheduling
Industry Expertise
Postal & Express
Logistics
Oil & Gas
Healthcare
Expertise