Scopus and I: confessions of a user Tefko Saracevic, PhD School of Communication, Information and Library Studies Rutgers University tefko@scils.rutgers.edu http://www.scils.rutgers.edu/~tefko Scopus and I Full disclosure • I have no connection with Scopus – But: I am on Scopus Advisory Board & as such have a free password – but I & you have Scopus access through Rutgers Library • • • Of two so far, I participated at one Scopus Advisory Board meeting (Budapest) and evaluated their product informally over phone conversations I am not going to the next meeting – Bangkok I gave an informal talk about using Scopus at 2006 ALA © Tefko Saracevic Scopus and I 2 What you can’t find on Scopus Named after: Hamerkop, Scopus umbretta © Tefko Saracevic Scopus and I 3 Overview Elsevier effort to get into searching Massive effort & outlay; big marketing global operations: Hdq: Amsterdam; marketing: Amsterdam, London, NY; indexing: Philippines; computers: Dayton, Ohio Unveiled in 2004 development investment HUGE & undisclosed Headed by Eefka Smit & a young Dutch team & combining ScienceDirect & Scirus (web searching) new features unveiled constantly – innovative e.g. mid 2005: added RefWorks; end 2005 Citation tracking: 2006 planed Author profiling & further analysis tools Search engine licensed from Fast © Tefko Saracevic Scopus and I 4 Coverage Science & technology only, no humanities Covers some 15,000 journals, 750 proceedings, patents includes social sciences (with library & information science), life sciences also strong in non-English & developing country sources incorporates wall to wall Medline, Embase, Compendex, & many other databases also web search via Scirus Time covered: For most is 1996 - ; for others goes back (e.g. as Medline) While having gaps coverage seems more comprehensive than any other single database © Tefko Saracevic Scopus and I 5 What can you do? Subjects search Source search – journals, types of sources Author search with many extensions with many capabilities to limit & modify, rank – e.g. as to citations to and from Citation tracking Integrated with getting full texts with library Integrated with RefWorks, given library has it Integrated web search © Tefko Saracevic Scopus and I 6 What do you see? At first: Lots of features laid out all at once But, relatively clear interface laying out capabilities Geared toward fast, intuitive learning & use and indeed it is relatively easy to learn & use Results displayed in LIFO order, but can be ranked © Tefko Saracevic Scopus and I 7 Reviews Comparing Scopus and Web of Science 2005: http://www.charlestonco.com/comp.cfm?id=43 2006: http://www.charlestonco.com/comp.cfm?id=43 critical of Scopus gaps in coverage, particularly before 1996 but not clear why comparison of these two services Scopus does many different things that WoS does not & vice versa both have citation searching but Scopus has much more Scopus subject searching is much more comprehensive, WoS citation searching is more comprehensive © Tefko Saracevic Scopus and I 8 search options © Tefko Saracevic Scopus and I 9 search selections © Tefko Saracevic Scopus and I 10 But lets get going …. Live examples from http://www.scopus.com/ user: tsaracevic password: I am not telling or: http://www.libraries.rutgers.edu/ © Tefko Saracevic Scopus and I 11 One of my uses of citation tracking Presently, I am writing a comprehensive review about the notion of relevance in information science for that I searched for some key authors including, of course, a vanity search then I saved each author in a list then – well lets look © Tefko Saracevic Scopus and I 12 My four saved lists © Tefko Saracevic Scopus and I 13 then… I selected and viewed the list “Mizzaro citations” to work on them further selected them all clicked on citation tracking and voila! © Tefko Saracevic Scopus and I 14 Selected them all for citation overview © Tefko Saracevic Scopus and I 15 Intereste d in this one © Tefko Saracevic Scopus and I 16 Follow-up on four Tombros NEW! © Tefko Saracevic Scopus and I 17 Following a vanity but useful trail Created a similar list of my own articles Selected two on relevance Who cited them? Who cited them who cited me? Discovered a number of previously unknown articles Here we go: © Tefko Saracevic Scopus and I 18 This one © Tefko Saracevic Scopus and I 19 Relevance subject search Selected 50+ articles on relevance Created a list & saved in My lists Did citation tracking Followed up on highly cited articles Had fun tracking those that cited them that cited them Eventually got lost in the tracking maze – of course! © Tefko Saracevic Scopus and I 20 © Tefko Saracevic Scopus and I 21 Which ones cited most? © Tefko Saracevic Scopus and I 22 Tracking a single article Barry C.L., Schamber L. Users' criteria for relevance evaluation: A cross-situational comparison 1998, Information Processing and Management, (2-3) 219-236 Tracked citations in Scopus And in Web of Science © Tefko Saracevic Scopus and I 23 Cited 33 times in Scopus I followed up on the citations – cited even in: Evaluating research for use in practice: What criteria do specialist nurses use? Journal of Advanced Nursing 50 (3), pp. 235-243 © Tefko Saracevic Scopus and I 24 and the winner is? For Barry & Schamber 1998 article: Scopus: 34 citations Web of Science: 31 citations Oh well … Were they the same articles? Degree of overlap? Overlap: 27 documents Scopus had 7 that WoS did not WoS had 4 that Scopus did not © Tefko Saracevic Scopus and I 25 Editorial uses • I use citation tracking as editor of the journal Information Processing & Management: – find [good] referees – most important function for any editor • – – – who did what in this area/topic, how cited subject layout of the topic of the paper tracking of author’s own work self-plagiarism? © Tefko Saracevic Scopus and I 26 Citation versus subject searching • • Each follows a different path for retrieval Studies show that each retrieves different documents – • • low overlap between what is retrieved As a rule, when doing serious searching I do both Citation searching/tracking also serves different purposes – – mapping of an area/topic and author also used fofr assessing impact © Tefko Saracevic Scopus and I 27 What is not there but I would LOVE it • Elimination of self-citations – • cannot do it in Web of Science either, but can in Dialog in a convoluted way Graphical display of connections – • add visualization, network maps Longer years back – Web of Science also has limitation on years depending on subscription rate • going back from 1994 costs gazillion dollars – Rutgers does not have it © Tefko Saracevic Scopus and I 28 Conclusions • • • Actually, I do not have any But citation tracking beside being serious business is also fun! So have fun! © Tefko Saracevic Scopus and I 29 He was the biggest polymath ever – maybe he envisioned Scopus? © Tefko Saracevic Scopus and I 30 images … © Tefko Saracevic Scopus and I 31 images … © Tefko Saracevic Scopus and I 32 and of course… © Tefko Saracevic Scopus and I 33 © Tefko Saracevic Scopus and I 34