Router Naming Convention for bbc.co.uk, 201207

Router Naming Convention for bbc.co.uk, 201207

Regular Expressions:

^.+\.([a-z]+)\.bbc\.co\.uk$

Statistics:

Training routers with at least two clustered interfaces: 1
Positive Predictive Value: 0.333
True Positives (green): 2
False Positives (red): 4
IP literals extracted (red): 0
False Negatives, identifier extracted (orange): 2
False Negatives, not matched: 0
Training routers with a single interface in suffix: 1

Legend:

Green	+	Inferred identifier, true positive when evaluated against training data
Orange	-	Inferred identifier, false negative when evaluated against training data
Red	!	Inferred identifier, false positive when evaluated against training data
Red	x	Inferred identifier, but contains part of IP address literal embedded in hostname
	~	False negative, not matched
	o	No regex matched the interface, but the interface was the only interface in this suffix on the router
	*	A filter regex matched the interface

Evaluation against training data:

		ch
132.185.143.14	!	143-14.ch.bbc.co.uk

		ch
132.185.143.33	!	143-33.ch.bbc.co.uk

		ch
132.185.143.34	!	143-34.ch.bbc.co.uk

		rdthdo
193.203.5.92	+	rt-lonap-a.rdthdo.bbc.co.uk
193.62.157.138		bbc-mcast.lond-ban4.ja.net

		thdo
195.66.224.103	-	bbc-linx.pr01.thdow.bbc.co.uk
212.58.239.217	+	ntl-ge2-8.prt0.thdo.bbc.co.uk
212.58.239.45	+	rt1.thdo.bbc.co.uk
193.62.157.178		bbc.lond-sbr4.ja.net

195.66.236.103	-	bbc-linx.pr01.rbsov.bbc.co.uk
193.203.5.91	!	rt-lonap-b.thdo.bbc.co.uk