[OAI-implementers] Searching open archives

[Tim Brody]

----- Original Message ----- 
From: "Stephens Owen" <Owen.Stephens at rhul.ac.uk>


> We have used the SFX link server in conjunction with arXive, but with
> limited success. The linking works fine, using the syntax:
>
> http://arXiv.org/openurl-resolver?id=oai:<archive>/<archiveId>
>
> The main problem is that the majority of references supplied to SFX don't
> contain the necessary 'archive' and 'archiveId' to provide a link to the
> object in the repository.

Citebase has OpenURL resolver support for this:
http://citebase.eprints.org/help/info_tech.php

> One thought I've had about this is using somekind of lookup mechanism - as
> used with CrossRef to get the DOI for a specific reference.

OAIster have on their list of intended developments support for OpenURL and 
Z39.50 (presumably ZRW). I would hope, as OpenURL gains support, that 
individual archives will provide OpenURL resolvers and exports through OAI 
(to allow structured linking).

> However, I
> suspect to provide a useful service to the end user, we need to get more
> precise about what we are linking to (pre-print, post-print, referreed or
> not, etc.)

The "appropriate copy problem". At the moment, I think this is more a case 
of what is available. Presumably you're resolving for an article the user 
has already decided to look at, at which point the task is to provide the 
user with the most convenient access.

All the best,
Tim.

> This type of refinement will obviously only be possible if it becomes
> standard to record this type of information in the repositories in the 
> first
> place - and although I've seen some discussion about this, I haven't seen
> anything practical come out so far.
>
> Owen
>
> Owen Stephens
> E-Strategy Co-ordinator
> Royal Holloway, University of London
> Egham
> Surrey
> TW20 0EX
>
> Tel: 01784 443331
>
> owen.stephens at rhul.ac.uk
>
>
>> -----Original Message-----
>> From: Howard Noble
>> [mailto:howard.noble at computing-services.oxford.ac.uk]
>> Sent: 01 November 2004 15:55
>> To: Baden Hughes
>> Cc: Boon Low; oai-implementers at openarchives.org; Matthew J.
>> Dovey; Colin Tatham
>> Subject: Re: [OAI-implementers] Searching open archives
>>
>>
>> Thank you Owen, Baden and Pete for your responses.
>>
>> My question stems from me being involved in a project that is
>> creating an open source and free distributed search tool (-
>> JAFER: http://www.lib.ox.ac.uk/jafer/.
>> ) that implements a JSP interface for executing Z39.50 and
>> SRW over repositories.
>>
>> JAFER also provides software that can be 'put infront of a
>> repository' to translate the interoperable network query into
>> the native DB query language (e.g. SQL).
>>
>> The interface is designed to search and select resources
>> returned by the search and then create a resource list
>> compliant with the new IMS Resource List Interoperability
>> Specification (http://www.imsglobal.org/rli/).
>>
>> I am trying to work out the practicalities of setting up SRW,
>> OAI and OpenURL together:
>>
>> http://www.loc.gov/z3950/agency/zing/srw/short-topics.html#oai
>>
>> So what I need is an OAI repository that implements SRW and a
>> openURL resolver than can be configured with a 'Link-To
>> syntax to OAI repositories.
>>
>> 1. Does anyone know of an OAI repository that does SRW?
>>
>> 2. Are there OAI repositories that implement 'deep linking' -
>> hyperlink to the full text for example, based on a simple
>> link-to syntax?
>>
>> Regards,
>>
>> Howard
>>
>>
>> ----- Original Message ----- 
>> From: "Baden Hughes" <badenh at cs.mu.OZ.AU>
>> To: "Howard Noble" <howard.noble at computing-services.oxford.ac.uk>
>> Cc: <oai-implementers at openarchives.org>
>> Sent: Saturday, October 30, 2004 5:58 AM
>> Subject: Re: [OAI-implementers] Searching open archives
>>
>>
>> >
>> > Hi Howard
>> >
>> > > Can anyone tell me if there is a recommended means for
>> searching an
>> > > OAI
>> repository? Z3.50, SRW...?
>> >
>> > There's many ways to do this, but AFAIK, not a single recommended
>> > approach. Certainly the collections aggregated by OAI-PMH can be
>> > expressed in a range of alternative formats which lend
>> themselves to
>> > existing tools eg Z39.50.
>> >
>> > > How are most repositories cross-searched?
>> >
>> > From an end user view there's really 4 models:
>> >
>> > 1) individual data providers who also provide a search interface
>> > directly
>>
>> > to their own collections, many of which are embedded with archive
>> > management suites;
>> >
>> > 2) there's a range of aggregation tools which offer search
>> interfaces
>> > across all OAI data providers eg ARC, MyOAI, OAIster via web
>> > interfaces for each tool;
>> >
>> > 3) via an application instance, where the application itself is
>> > OAI-aware and connects either to a local collection or an online
>> > aggregator;
>> >
>> > 4) through interfaces like DP9 automated services like web search
>> > engines can also index the contents, allowing users to
>> search "on the
>> > web" and
>> find OAI data provider
>> > contents.
>> >
>> > If you consider the list at
>> > http://www.openarchives.org/tools/tools.html,
>> > you'll see a range of these different tools available.
>> >
>> > > Also are most repositories open to searching (by users, not
>> > > harvesting)
>> or do they require authentication?
>> >
>> > Most are open access, ipso facto. I presume that there are some
>> > repositories which have access restrictions in various forms, but I
>> > haven't gone looking specifically.
>> >
>> > Regards
>> >
>> > Baden
>> >
>> >
>>
>>
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