tech,1-2-P95-1034,ak A <term> robust generator </term> must be able to operate well even when pieces of <term> knowledge </term> are missing .
other,16-4-P95-1034,ak To attack these problems , we have built a <term> hybrid generator </term> , in which gaps in <term> symbolic knowledge </term> are filled by <term> statistical methods </term> .
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