{"id":678,"date":"2009-04-22T08:12:28","date_gmt":"2009-04-22T15:12:28","guid":{"rendered":"http:\/\/palblog.fxpal.com\/?p=678"},"modified":"2009-04-19T18:20:25","modified_gmt":"2009-04-20T01:20:25","slug":"relevance-feedback-and-deep-mediation","status":"publish","type":"post","link":"https:\/\/blog.fxpal.net\/?p=678","title":{"rendered":"Relevance feedback as a form of deep mediation"},"content":{"rendered":"<p>In their recent <a title=\"Joho, H., Hannah, D., and Jose, J. M. (2009) Revisiting IR techniques for collaborative search strategies. In Proc. ECIR 09, 66-77, Toulouse, France. \" href=\"http:\/\/www.dcs.gla.ac.uk\/~hideo\/pub\/ecir09\/ecir09.pdf\" target=\"_blank\">ECIR paper<\/a>, Joho <em>et al.<\/em> explored the effectiveness of several mediation techniques around relevance feedback in supporting collaborative search. They ran simulations based on TREC HARD topics queries elicited in an <a title=\"Joho, H., Hannah, D., and Jose, J. M. 2008. Comparing collaborative and independent search in a recall-oriented task. In Proc, IIiX '08, vol. 348. ACM, New York, NY, 89-96. \" href=\"http:\/\/doi.acm.org\/10.1145\/1414694.1414715\" target=\"_blank\">earlier study<\/a>, and found that certain techniques were effective at increasing recall during (simulated) search sessions consisting of 20 queries.<\/p>\n<p><!--more-->They found that either individual or pooled relevance feedback improved simulated performance, that performance improved as the\u00a0 number\u00a0 of team members increased from two to five (although marginal improvements dropped after the second user), and that there was no difference between pooling relevance judgments and keeping them separate for each user. They did not observe any benefits to clustering results prior to assignment to users.<\/p>\n<p>These are all important questions that need to be understood both in simulations and in actual use. This research serves to inform the design of <a title=\"Communicating about Collaboration: Depth of mediation| FXPAL Blog\" href=\"http:\/\/palblog.fxpal.com\/?p=274\" target=\"_blank\">algorithmic mediation<\/a> for collaborative search in the presence of symmetric roles. Other algorithms will be required to support asymmetric roles such as the prospector\/miner combination implemented in <a title=\"Algorithmic Mediation for Collaborative Exploratory Search | FXPAL\" href=\"http:\/\/www.fxpal.com\/?p=abstract&amp;abstractID=460\" target=\"_blank\">Cerchiamo<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In their recent ECIR paper, Joho et al. explored the effectiveness of several mediation techniques around relevance feedback in supporting collaborative search. They ran simulations based on TREC HARD topics queries elicited in an earlier study, and found that certain techniques were effective at increasing recall during (simulated) search sessions consisting of 20 queries.<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[22,15,7],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=\/wp\/v2\/posts\/678"}],"collection":[{"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=678"}],"version-history":[{"count":6,"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=\/wp\/v2\/posts\/678\/revisions"}],"predecessor-version":[{"id":683,"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=\/wp\/v2\/posts\/678\/revisions\/683"}],"wp:attachment":[{"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.fxpal.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}