Router Naming Convention for swern.net.uk, 201104

Regular Expressions:

^([a-z]+)-[a-z]+-[^\.]+\.swern\.net\.uk$
^([a-z\d]+-[a-z\d]+)-[^\.]+\.swern\.net\.uk$

Statistics:

Training routers with at least two clustered interfaces: 12
Positive Predictive Value: 0.966
True Positives (green): 28
False Positives (red): 1
IP literals extracted (red): 0
False Negatives, identifier extracted (orange): 2
False Negatives, not matched: 3
Training routers with a single interface in suffix: 3

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:

		4900-c
194.83.94.213	+	4900-c-clif-ph.swern.net.uk
194.83.94.215	+	4900-c-fren-sh.swern.net.uk

		4900-f
194.83.94.211	+	4900-f-clif-sh.swern.net.uk
194.83.94.209	+	4900-f-fren-ph.swern.net.uk

		bathc
194.82.120.2	-	4900-bathc-bath.swern.net.uk
194.83.94.73	+	bathc-clif-ph.swern.net.uk
194.83.94.75	+	bathc-clif-sh.swern.net.uk

		bdw
194.83.94.81	+	bdw-fren-ph.swern.net.uk
194.83.94.83	+	bdw-fren-sh.swern.net.uk
194.83.94.87	+	bdw-tau-xc.swern.net.uk

		ex
194.83.94.121	+	ex-clif-ph.swern.net.uk
194.83.94.123	+	ex-clif-sh.swern.net.uk

		exc
194.82.125.82	~	exc-exeter.swern.net.uk
194.83.94.113	+	exc-fren-ph.swern.net.uk

		glos
194.83.94.105	+	glos-clif-ph.swern.net.uk
194.83.94.107	+	glos-clif-sh.swern.net.uk

		hp-3
194.82.125.37	+	hp-3-rnep-f.swern.net.uk

		ply
194.83.94.129	+	ply-fren-ph.swern.net.uk
194.83.94.131	+	ply-fren-sh.swern.net.uk
194.83.94.135	+	ply-plyc-xc.swern.net.uk

		plyc
194.83.94.137	+	plyc-clif-ph.swern.net.uk
194.83.94.139	+	plyc-clif-sh.swern.net.uk

		rnep
194.83.94.226	+	rnep-f-rnep-c.swern.net.uk
194.82.125.209	+	rnep-fd-rnep-cd.swern.net.uk
146.97.42.186		swern-b2.site.ja.net

		t-r1
194.83.94.197	+	t-r1-clif-pa.swern.net.uk
194.83.94.193	+	t-r1-fren-ph.swern.net.uk
194.83.94.195	+	t-r1-fren-sh.swern.net.uk

		t-r2
194.83.94.37	~	4948-t2.swern.net.uk
194.83.94.201	+	t-r2-clif-ph.swern.net.uk
194.83.94.203	+	t-r2-clif-sh.swern.net.uk
194.83.94.205	+	t-r2-fren-pa.swern.net.uk

		tau
194.83.94.89	+	tau-clif-ph.swern.net.uk
194.83.94.91	+	tau-clif-sh.swern.net.uk

		uwe
194.82.125.44	+	uwe-gw-1-rnep-c.swern.net.uk

194.83.94.10	~	4900-bath.swern.net.uk
194.83.94.65	-	bath-fren-ph.swern.net.uk
194.83.94.71	!	bathc-bath-xc.swern.net.uk