Massachusetts Institute of Technology published a paper on Target recognition in what year?
Mention the year in which Massachusetts Institute of Technology published a paper on Target recognition.
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/conf/icnn/CarpenterRS97> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> 'Massachusetts Institute of Technology' . <https://dblp.org/rec/conf/icnn/CarpenterRS97> <https://dblp.org/rdf/schema#yearOfPublication> ?answer }
<https://dblp.org/rec/conf/icnn/CarpenterRS97>