CiteSeer, techXtra and computer science literature Saturday, 27 May 2006 4:03 pmPosted by Dongmei in computer science, search engines.
For those doing computer science (and applied mathematics) research, I'm sure that you use CiteSeer a lot. (CiteSeer is a public digital library and search engine in computer and information science (and related areas) that's hosted at Penn State, currently includes over 700,000 documents).
TechXtra (used to be called EEVLXtra), an initiative of Heriot Watt University cross-search 25 databases in engineering, math, and computing.
In addition to CiteSeer, TechXtra also searches arXiv ePrints, ePrints UK, NASA Technical Reports, CISTI (Canada Institute for Scientific and Technical Information), EEVL Ejournal Search Engine, Euclid Mathematics and Statistics Journals, and others.
So, when CiteSeer is busy (happens a lot), you can use techXtra as an alternative, however, I do find some discrepancy (tried "vector space model" as an example). And you can't do citation search in techXtra which is a nice feature of CiteSeer.