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Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow...

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Page 1: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

fuzzy applicationsmerrick cloete | sahithi jadav

Page 2: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

this presentation

fuzzy applications

adaptive pricing

EDM

plug flow reactor

summary

Page 3: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

adaptive pricing aims to dynamically change the price of a productit aims to adapt to market trends:

demand fluctuationsProduct variability

Page 4: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

adaptive pricingneed to ensure products are adequately priced, not too expensive or cheap

adaptations need to avoid exploitation vulnerabilities, undesired product drops below profitable value at which point it is bought in bulk

avoid price hike loops whereby certain products reach unreasonably high prices

Page 5: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

benefits

works well with slow to purchase products – things that don’t have a constant stream

of purchase order or don’t suit a bid system

handles large numbers of factors well without overly complex rules

Minimal data require compared to machine learning, defined by

developer – understand consumer base better

Page 6: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

implementationProduct

Popularity

Shop Performance

User Recency

Market Penetration

Category Popularity

Time of week Performance

User Purchase Pate

Fuzzy Rule Set

discount

Page 7: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

fuzzy inputsexplanation of inputs:

Product Popularity

Category Popularity

Shop Performance

Page 8: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

fuzzy inputs cont.explanation of inputs:

Time of Week Performance

User Recency

User Purchase Rate

Page 9: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

fuzzy inputs and outputexplanation of inputs and output:

Market Penetration

Discount

Page 10: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

rule set

Page 11: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

Fuzzy control system

-Fuzzy logic controllers in proportional integral and deferential forms

-Fuzzy logic control closed system

-Illustration

Page 12: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

Control closed loop:- Handling imprecision and nonlinearity in complex

systems- Input & output variables are normalized

Page 13: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

Logic Controllers in PI’s

-Two input variables, the error and the change of error

-Two input output FLC is derived from input variables and output variables.

Page 14: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

PD like Fuzzy controller

-PD controller can be derived from Max-product inference technique

-Change in control variable according to the time plays a vital role

Page 15: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

Plug flow tubular reactor:

-A simple exothermic kinetics takes place from A->B

Page 16: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

-Seven fuzzy sets are derived for each variable e(t),ce(t),cu(t)

-Reduction in the coolant temperature decreases the output concentration, and inversely, the reasoning for

the construction of the fuzzy control rules.

Page 17: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

PERFORMANCE ANALYSIS

Page 18: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

Fuzzy reasoning in EDM

• EDM (electrical discharge machining) is a very complicated and stochastic process.

• Fuzzy reasoning system is used as classifier, sparks and arcs

• Electrical impedance is calculated using fuzzy sets.

Page 19: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

EDM

Page 20: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

summaryAdaptive Pricing

Plug Flow Reactor

EDM

Page 21: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

referencesAdaptive Pricing with Fuzzy Logic http://blog.fuzzy.io/2015/03/25/adaptive-pricing-with-fuzzy-logic/

A CASE STUDY: A FUZZY CONTROL SYSTEM Chapter 15.4http://www.inf.ufpr.br/aurora/disciplinas/topicosia2/livros/search/FR.pdf

A Fuzzy Neural Control Systemhttp://onlinepresent.org/proceedings/vol31_2013/20.pdf

Page 22: Merrick cloete | sahithi jadav. this presentation fuzzy applications adaptive pricing EDM plug flow reactor summary.

fuzzy applicationsmerrick cloete |sahithi jadav


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