Giovanni Casella Gennaro Costagliola Vincenzo Deufemia Maurizio Martelli Viviana Mascardi An Agent-Based Framework for Context-Driven Interpretation of Symbols in Diagrammatic Sketches. 73-80 2006 conf/vl/2006 VL/HCC http://doi.ieeecomputersociety.org/10.1109/VLHCC.2006.8 db/conf/vl/vlhcc2006.html#CasellaCDMM06