... from a large sample (Bradley, 2003 , p. 51). Opt out option leads to increase in spam, as it confirms an active address (Bradley, 2003 ; Levine et al., 2004). Open relays allows spammers to offload costs to third party computers, who have open mail relays and spammers are able to send...

...A. MacFarlane; S.E. Robertson; J.A. McCann In this paper methods for both speeding up passage processing and examining more passages using parallel computers are explored. The number of passages processed are varied in order to examine the effect on retrieval effectiveness and efficiency...

...Julian Warner Information science has been convincingly characterised as a response to developments in information and communications technologies and as part of the gestalt of the computer. Despite this, it has had a limited understanding of information technology and has repressed or disguised...