Syntax-Directed Interpretation of Classes of Pictures A descriptive scheme for classes of pictures based on labeling techniques using parallel processing algorithms was proposed by the author some years ago. Since then much work has been done in applying this to bubble chamber pictures. The parallel processing simulator, originally written for an IBM 7094 system, has now been rewritten for a CDC 3600 system. This paper descriptive models by considering their specific application to bubble chamber pictures. How the description generated in this phase can be embedded in a larger "conversation" program is explained by means of a certain specific example that has been worked out. A partial generative grammar for "handwritten" English letters is given, as are also a few computer-generated outputs using this grammar and the parallel processing simulator mentioned earlier. CACM March, 1966 Narasimhan, R. CA660304 JB March 3, 1978 1:56 PM 1155 4 1468 1456 4 1468 1468 4 1468 1515 4 1468 1699 4 1468 1856 4 1468 2127 4 1468 1324 5 1468 1468 5 1468 1468 5 1468 1468 5 1468 1767 5 1468 1781 5 1468 2341 5 1468 123 6 1468 196 6 1468 196 6 1468 919 6 1468 990 6 1468 990 6 1468 1007 6 1468 1046 6 1468 1131 6 1468 1139 6 1468 1140 6 1468 1149 6 1468 1198 6 1468 1215 6 1468 1223 6 1468 1265 6 1468 1303 6 1468 1323 6 1468 1358 6 1468 1366 6 1468 1421 6 1468 1460 6 1468 1462 6 1468 1463 6 1468 1467 6 1468 1467 6 1468 1468 6 1468 1468 6 1468 1468 6 1468 1466 6 1468 1477 6 1468 1491 6 1468 1496 6 1468 1496 6 1468 1531 6 1468 1535 6 1468 1565 6 1468 1601 6 1468 1602 6 1468 1613 6 1468 1614 6 1468 1626 6 1468 1641 6 1468 1787 6 1468 1788 6 1468 205 6 1468 224 6 1468 249 6 1468 288 6 1468 316 6 1468 381 6 1468 398 6 1468 11 6 1468 404 6 1468 410 6 1468 463 6 1468 464 6 1468 483 6 1468 3184 6 1468 3184 6 1468 3188 6 1468 584 6 1468 600 6 1468 680 6 1468 691 6 1468 763 6 1468 799 6 1468