University Health Network has released a beta version of “chisel”, an open-source semantic cache for Java. It was developed to cache HL7 query results in a semi-virtual EHR, but will run against any Java method that encapsulates a conjunctive query. It uses Deshpande et al.’s approach (“Caching multidimensional queries using chunks”, SIGMOD ’98). Site: http://chisel-cache.sourceforge.net/