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Ontology-based Case-Based Reasoning (OntCBR) for Engineering ...

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8. <strong>Case</strong> Search with Networks<br />

8.1 Searching CSN<br />

AirPurifier<br />

has_req<br />

subreq<br />

Cleaning_Air<br />

subreq<br />

Searching algorithm: Best-first search with a threshold<br />

Concept structure<br />

be<strong>for</strong>e reasoning with ontology<br />

fan_assy<br />

subpart<br />

fan<br />

Air_Env<br />

subpart<br />

motor<br />

Make_Wind<br />

Concept structure<br />

after reasoning with ontology.<br />

AirPurifier<br />

subpart<br />

fan_assy<br />

subpart<br />

subpart<br />

subpart<br />

crossflow_fan<br />

has_req has_req<br />

subreq<br />

has_req<br />

Air_Env<br />

has_req<br />

Cleaning_Air<br />

subreq Make_Wind<br />

AirPurifier<br />

Cleaning_Air<br />

Make_Wind<br />

motor<br />

sim(n) =<br />

33.4%<br />

RDN #1<br />

sim(n) =<br />

11.7%<br />

AirPurifier<br />

Cleaning_Air<br />

sim(n) =<br />

33.4%<br />

AirPurifier<br />

Make_Wind<br />

AirPurifier<br />

SiroccoFan Clean_Air<br />

RDN #3<br />

AirPurifier<br />

Cleaning_Air<br />

sim(n) =<br />

11.7%<br />

SiroccoFan<br />

Long_Scroll<br />

Make_Wind<br />

AirPurifier<br />

Cleaning_Air<br />

54<br />

sim(n) =<br />

11.7%<br />

AirPurifier<br />

has_r<br />

eqAir_Env<br />

sim(n) =<br />

16.7%<br />

AirPurifier<br />

RDN #2<br />

AirPurifier<br />

Long_scroll Clean_Air<br />

AirPurifier<br />

Cleaning_Air<br />

SiroccoFan<br />

Long_Scroll<br />

Air_Env<br />

Make_Wind<br />

AirPurifier<br />

Long_Scroll<br />

AirPurifier<br />

Cleaning_Air<br />

sim(n) =<br />

0%<br />

AirPurifier<br />

SiroccoFan Long_Scroll<br />

SiroccoFan<br />

Long_Scroll<br />

Air_Env<br />

sim(n) =<br />

11.4%<br />

AirPurifier<br />

SiroccoFan<br />

SiroccoFan<br />

Long_Scroll<br />

AirPurifier<br />

has_r<br />

eq<br />

Air_Env<br />

Make_Wind<br />

sim(n) =<br />

41%<br />

AirPurifier<br />

4<br />

5<br />

sim(n) =<br />

16.7%<br />

AirPurifier<br />

CrossflowFan<br />

RDN #4<br />

CSN Search<br />

RDN Search<br />

AirPurifier<br />

Crossflow_fan<br />

Make_Wind<br />

Crossflow_Fan<br />

Air_Env<br />

Make_Wind<br />

matching weight values <strong>for</strong> concepts<br />

-. Required_function = 0.7<br />

-. Part = 1<br />

sim(n) =<br />

28.4%<br />

sim(n) =<br />

28.4%<br />

AirPurifier<br />

Crossflow_fan Air_Env

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