Load:

Endpoint	Cell Cycle	Allie	PDBJ	UniProt?	DDBJ
Virtuoso(min)	4	46	103	* 43hours17mins	78hours8mins
OwlimSE(min)	3	28	127	testing	testing
Bigdata(min)	3	62	537		X
4Store (min)	2	12	6408	#	#
Mulgara(min)	10	89	X

** It needs another 17 hours to decompress and split the data set.

# We do not test 4Store on larger data set because its scalability is not ideal. From about 100M Allie data set to 500M PDBJ data set the time cost increases 500 times.

X Some Problem occurred when uploading the data. Please refer to its uploading procedure for details.

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Space used:

Endpoint	Cell Cycle	Allie	PDBJ	UniProt?	DDBJ
Virtuoso				308G	538G
OwlimSE	5.7G	18G	57G	481G	1079G
Bigdata	780M	6.9G	34G
4Store	2.2G	14.7G	*	*	*
Mulgara	2.4G	15.8G	X

Query for Cell Cycle:

Endpoint	case1	case2	case3	case4	case5	case6	case7	case8	case9	case10	case11	case12	case13	case14	case15	case16	case17	case18	case19
Virtuoso (ms)	24	2	23280	3	42500	13073	5	7562	41	2	120	19	5	1	56058	46	15	16	16721
OwlimSE(ms)	110	6	2472	2	149	2071	2	33	22	0	6	6	2	0	46129	X	X	X	14
Bigdata(ms)	331	42	3135	16	414	1191	21	97	43	14	23	43	13	13	19093	X	X	X	37
4Store (ms)	56	18	1236	13	33	64	22	67	2035	7	6	1563	8	7	*	X	X	X	15
Mulgara(ms)	1294	20	2207	9	343	2325	32	58	33	4	14	X	9	6	X	X	X	X	38

X or * shows that the endpoint does not support "count()" function or some unsupported function causes a wrong result.

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The pie chart shows that how many percent an end point accounts for the fastest performers.

The data shows that in the cell cycle queries on the 10 million or so triples:

(1)Virtuoso supports more query. In some cases Virtuoso response fast but some others cost far more than others, such as case5 and case19;

(2)Except that OwlimSE cannot support count() function, it totally perform better and has no worst case;

(3)Bigdata and Mulgara perform averagely well;

(4) 4Store do not support count() and give no response in case15. However it performs distinctively better in some cases such as case5 and case6.

Query for Allie:

Endpoint	case1	case2	case3	case4	case5
Virtuoso (ms)	23	1413	152	95	27299
OwlimSE(ms)	145	1980	1476	38	68369
Bigdata(ms)	427	4206	2549	212	195021
4Store (ms)	X	217	X	X	65128
Mulgara(ms)	373	121	X	X	X

4Store: Donot support "lang()" function.

Mulgara: Unable to support arbitrarily complex ORDER BY clause.

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Query for PDBJ:

Endpoint	case1	case2	case3	case4
Virtuoso (ms)	147	2	2	138
OwlimSE(ms)	53	1	191	4
Bigdata(ms)	213	17	55	56
4Store (ms)	1025	1274	131	1524
Mulgara(ms)	X	X	X	X

In these two groups of queries on about 100 million triples:

(1) Virtuoso and OwlimSE works better than others. Although in Allie Virtuoso performs a little better and OwlimSE is better in PDBJ, there looks no overwhelming advantages over each other.

(2) In Allie 4Store is still limited but performs better when it executes the query such as in case2. However as increasing the number of triples in PDBJ, it performs worst.

(3) Bigdata still keeps it situation: neither the best one nor the worst one.

Query for Uniprot:

Endpoint	case1	case2	case3	case4	case5	case6	case7	case8	case9	case10	case11	case12	case13	case14	case15	case16	case17	case18
Virtuoso (ms)	51	95	114	2	7	2206	34916	413	605	652	53	4	289	269	10631	9052	2	76
OwlimSE (ms)	429	383	519	139	21	628381	433913	6924	1923	58794	3266	117	22	42	35112	322058	5875	8900

Query for DDBJ:

Endpoint	case1	case2	case3	case4	case5	case6	case7	case8	case9	case10
OwlimSE (ms)	18648	3276	3710	82	85	117	5534	10468	2010	1
Virtuoso (ms)	226	218	418	56	7	98	5	4	7	1

In these two group of queries with about 4 billion and 8 billion triples, we found out that Virtuoso performs obviously better.

Conclusion