[OPEN-ILS-GENERAL] Activity metric for relevance

[Mike Rylander]

On Fri, Mar 15, 2013 at 9:00 AM, Hardy, Elaine
<ehardy at georgialibraries.org>wrote:

> First off, I think this is a good enhancement and would be very helpful to
> all users particularly when searching a large database – a keyword search
> for Abraham Lincoln returns over 2400 hits when searching all of PINES…263
> for one of the larger systems. ****
>
> ** **
>
> Mike – would your algorithm mean that, with a title like Team of Rivals
> (which had an initial high rate of circulation and holds, then interest
> fell off to revive again with the movie), while it is first popular it
> rises in the search results, to fall as interest tapers, and then arises
> again, using older and newer interest data? That way it might “bump” above
> other titles that were popular in that interval more quickly than without
> the algorithm?****
>
> **
>


That's the intent, yes.

--miker


>  **
>
> *Elaine*****
> ------------------------------
>
>
> J. Elaine Hardy
> PINES Bibliographic Projects & Metadata Manager
> Georgia Public Library Service
> 1800 Century Place, Ste 150
> Atlanta, Ga. 30345-4304
>
> 404.235-7128
> 404.235-7201, fax
> ehardy at georgialibraries.org
> www.georgialibraries.org
> www.georgialibraries.org/pines
>
>
> ****
>
> *From:* open-ils-general-bounces at list.georgialibraries.org [mailto:
> open-ils-general-bounces at list.georgialibraries.org] *On Behalf Of *Mike
> Rylander
> *Sent:* Thursday, March 14, 2013 10:11 PM
> *To:* Evergreen Discussion Group
> *Subject:* Re: [OPEN-ILS-GENERAL] Activity metric for relevance****
>
> ** **
>
> Kathy,****
>
> ** **
>
> Have you considered allowing an aging parameter for some bumps, so that
> newer data toward the near end of the horizon is considered more important?
> For instance, spikes in circulation might have a larger short term effect
> on relevance, but over time, while still being factored into relevance,
> would be less important though still considered in the bump logic.  I ask
> because I have a simple algorithm I'm using in another project, to be
> debuted at the conference, that may be portable to this work.****
>
> ** **
>
> --miker****
>
> ** **
>
> ** **
>
> On Thu, Mar 14, 2013 at 3:53 PM, Kathy Lussier <klussier at masslnc.org>
> wrote:****
>
> Hi all,
>
> MassLNC is working with our partners at MVLC to develop an activity metric
> (aka popularity metric) that will allow sites to rank more popular items a
> little higher in search results than items that don't see as much activity.
> I've raised this idea on the list before. Although Evergreen allows sites
> to adjust relevancy based on the appearance of keywords in certain fields,
> which is highly useful, our hope is that this additional functionality will
> lead to further improvement when ranking results by relevance.
>
> As an example, if a user were conducting a keyword search on "abraham
> lincoln,"  there are many titles in most US libraries where the words
> "abraham lincoln" show up in the title. There would be no way to tease out
> the titles that are getting the most attention by readers. In fact, a title
> like "Team of Rivals" ranks very low in our search results even though
> there is a high likelihood it is the title the patron is seeking.  By
> applying a metric based on activity, we might be able to see those
> more-recently popular titles floating higher in the search results list.
>
> I would like to share MVLC's proposal outlining the details for
> implementing this project. The proposal is available at
> http://masslnc.cwmars.org/node/2757. It provides a lot of flexibility in
> allowing sites to define what "high activity" means to them. Circulation
> activity, holds activity, total copies, and publication age/bib record age
> can all be used as an activity metric.
>
> If you have any feedback or questions, feel free to let us know.
>
> Kathy
>
> --
> Kathy Lussier
> Project Coordinator
> Massachusetts Library Network Cooperative
> (508) 343-0128
> klussier at masslnc.org
> Twitter: http://www.twitter.com/kmlussier****
>
>
>
> ****
>
> ** **
>
> --
> Mike Rylander
>  | Director of Research and Development
>  | Equinox Software, Inc. / Your Library's Guide to Open Source
>  | phone:  1-877-OPEN-ILS (673-6457)
>  | email:  miker at esilibrary.com
>  | web:  http://www.esilibrary.com ****
>



-- 
Mike Rylander
 | Director of Research and Development
 | Equinox Software, Inc. / Your Library's Guide to Open Source
 | phone:  1-877-OPEN-ILS (673-6457)
 | email:  miker at esilibrary.com
 | web:  http://www.esilibrary.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://libmail.georgialibraries.org/pipermail/open-ils-general/attachments/20130315/63ea3b5e/attachment.htm>