Improving ELM-Based Service Quality Prediction by Concise Feature Extraction

Table 3

QWS datasets attributes and their description.

Attributes	# Attributes name	Description	Units
	Response time	Time taken to send a request and receive a response	ms
	Availability	Number of successful invocations/total invocations	%
	Throughput	Total number of invocations for a given period of time	Invokes/s
	Successability	Number of responses/number of request messages	%
	Reliability	Ratio of the number of error messages to total messages	%
	Compliance	Number of successful invocations/total invocations	%
	Best practices	The extent to which a WSDL document follows WSDL documentation	%
	Latency	Time taken for the server to process a given request	ms
	Documentation	Measure a documentation (i.e., description tags) in WSDL	%
	Service classification	Levels representing service offering qualities (1 through 4)	Classifier
	Service name	Name of the Web services	None
	WSDL address	Location of the Web service definition language (WSDL) file on web	None