Dr. Terence A. Etchells gave on April 15th 2010 a conference at IDAL facilities titled “Rules from Data via a Neural Network. Orthogonal Search-based Rule Extraction (OSRE)“. Prof. Etchells was visiting IDAL for 5 days, although visit was unintentionally extended due to air space closed because of volcanic ash. IDAL members thank professor Etchells his excelent dissertation.