Personalized online information search and visualization

Table 1 The system saves time and improves online search efficiency (n = 35)

Questions	Criteria	Scale	Mean ± SD
The system
	useful	1 for not at all and 9 very useful	7.5 ± 1.4
	easy to use	1 for very difficult to 9 very easy	6.6 ± 2.3
	will use it regularly	1 for not and 9 certainly will	6.5 ± 2.2
	recommend using it	1 for not and 9 highly	7.5 ± 2.0
Efficiency
	time prior to using it	0.5, 1.0, 1.5, ...4.0 hrs/wk	2.2 ± 1.3
	time after using it	0.5, 1.0, 1.5, ...4.0 hrs/wk	1.0 ± 1.2*
Relevancy
	relevant articles	10, 20, ..., 90%	69.3 ± 19.4
	new among the relevant	10, 20, ..., 90%	33.6 ± 15.7
Users
	know MeSH before	1 for not at all and 9 for expert	3.2 ± 2.0
	new to computer	1 for new and 9 for expert.	6.3 ± 2.4
	reasons to try it
		too busy to search	74%
		too time consuming	43%
		too many irrelevant reports	17%
		frustrated when searching	11%

*p < 0.001 using paired t-test assuming equal variances as compared with hours spent weekly prior to using system.

ISSN: 1472-6947