Analyzing Network Protocols of Application Layer Using Hidden Semi-Markov Model

Table 1

Results of keyword extraction for text-based protocols.

System	Protocol	True keyword	Inferred keyword	True positive	Precision (%)	Recall (%)
HsMM	HTTP	36	80	33	41.25	91.67
	SSDP	24	54	24	44.44	100
Discv	HTTP	36	859	25	2.33	69.44
	SSDP	24	94	22	23.40	91.67
PI	HTTP	22	1	1	100	4.55
	SSDP	20	12	4	33.33	20.00