Research Article
Prefiltering Strategy to Improve Performance of Semantic Web Service Discovery
Listing 4
Part of goal instance specification dealing with the capability desired and the category of the desired service.
Goal Instance | “Book a flight from Berlin to Istanbul” | hasCategory
→ AirTransportation, | requestsCapability → goal_1 | hasPrecondition→ | reqFlight | originateCity → berlin, | terminalCity → istanbul, | departureDate → ?DDate, | returnDate → ?RDate, | numberPeople → 2 | :RequestTicket | , | hasPostcondition→ | (?BookTicket | departureDate → ?DDate, | returnDate → ?RDate | fromAirport → ?FromAirport, | toAirport → ?ToAirport, | cost → ?TotalCost | ]:Response | , | is_equal(?ToAirport, Sabiha_Gokcen), | less(?TotalCost, 500) | ), | optimization→ | optObj[optCost → ?TotalCost] | ] | |
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