Wednesday, February 23, 2005

SFX (Yale)

Katie Bauer, ELI Interface Librarian, gives informative one-hour presentation on SFX. Note current experimental work between Yale and Google Scholar, with citation analysis, Yale holdings, and SFX link appearing to side of results list. Jeffrey Barnett seems to be involved in this initiative.

Firefox has plugin for SFX-enabled Google Scholar. Problem with Google Scholar is we don't know how many or which journals are indexed and how far back in time the indexing goes. So not yet recommended except in combination with other database searches.

OpenURL includes Base URL plus citation information. Base is, followed by what looks like a cgi advanced search form dump including all available citation information. Here is example from PubMed Not all articles have unique numeric identifiers, but those that do can be the easiest for SFX to find.

SFX set of rules asks: first: what journal does article appear in, then; does Yale own this title; then: builds citation on fly.

Example from WebofScience, one of most heavily used databases at Yale, historically an index of citations and well known for having pioneered use of citation analysis (i.e., who's been citing article and how frequently; what's most frequently y cited article, etc.) Following search, every citation has Yale SFX link ; note in lower right hand corner "Analyze Results". People often think SFX link means Yale has full text, but the actual percentage is small.

Clicking on icon yields "SFX Menu". Pulls citation information out of Open URL. FIrst looks for full text, if unfound, then first bullet "SFX could not find full text." Also possible to search directly via Orbis for local holdings, or to see if SFX missed a full-text source. Another database heavily used, with SFX turned on, and also with citation analysis, is Academic Search. "Semantic Interoperability" yields some interesting results from computer science literature. Clicking on PDF link , where available, is often easiest best ways to get full text, since provited by citation publisher itself.

Lexis Nexis is tracked in SFX, but is trickier to search when indicated. They don't link their content quite as directly as one might like. Need to search first title index for newspaper title , e.g., new york times, then enter search terms, then changing default from "previous six months" which tends to make searches fail. Point: sometimes SFX is quite elegant, other times more difficult for ordinary researchers.

Another nice SFX feature, using SFX to copy open URL info into ILIAD ILL photocopy request, minimizing chance of typo from rekeying citation. (Iliad, like RefWorks, FYI, requires individual account set up; and RefWorks can build its own SFX link, if given enough information).

Try citation linker (, off of Online Journals and Newspapers "when you already know the citation for an article." Top part of farm is dta most likely to be in posession of patron. Menu will emerge where various aggregators will be providing the full text.

Users can make request for additional databases to ahve sfx option turned on. See handout for contact information. 2002 was sfx year one at Yale; now some months more than 60,000 queries.

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