SIG/CR workshops typically occur in combination with the ASIS&T Annual Meetings. You can find an archive of papers from past workshops at Advances in Classification Research Online.
2018 ASIS&T SIG/CR Workshop: Call for Proposals
2017 ASIS&T SIG/CR Workshop – Pre-conference papers and slides
2017 ASIST SIG/CR Workshop: Call for Proposals
2015 Call for Proposals SIG/CR Workshop
2014 Full Program of ASIS&T SIG/CR Workshop
2014 SIG/CR Workshop Call for Proposals
ASIS&T SIG/CR 