This file documents changes to the German grammar (B-Ger-Gram) and the TRALE core system. 31.03. renaming the feature dtr into zdtr yielded a performance gain of 13%. This is due to the position the DTR value gets in a compiled feature structure. dtr would be the very first element zdtr is the last. Since dtr never dicriminates, time is wasted. der mann gibt der frau das buch, die ich kenne. 86 sec -> 75 sec 25.03. reorganized type hierarchy to refelct participle I better. Wrote lexical rule for `lachend' as in "Sie lief lachend weg." Cleaned up lexrules.pl. Fixed depictives. Now also possible with adjectives that take a complement as in Er starb stolz auf ihn. Modified TRAEL so that it only uses lexical items that are relvant for a parse. This makes it possible to remove particles from the chart in cases where it does not contain any particle verbs. Reduces the number of edges for "Er starb stolz auf ihn." from 340 to 215. 23.03. fixed spurious ambiguities in coordination modified extraposition added complementizer `ob' 21.03. fixed extraposition and adjunction for structures with head initial heads 12.03. implemented code that makes it possible to hide types from the hierarchy display. 11.03. fixed extraposition trace added more delays on check_identical_append/4 This reduced the number of pedges for 'ist schön' from 114 to 98 fixed introduction of extraposition traces as modifieres of initial verbs (speed) reduced nummber of passive edges for 'ist schön' from 98 to 88 changed speed constraints on head_adjunct_rule with trace as head the resulting sign now has a SUBCAT list of list_of_non_complex_forming_non_extra_synsems 'ist schön' from 88 to 83 edges excluded spurious ambiguities in the case of extraposition of adjuncts of extracted heads: j_1 Schlafen_i wird der Mann [j_2 [morgen _i]] müssen in der Schule. 'ist schön' from 83 to 75 edges fixed delay in anchor percolation and in extra percolation. Delaying on PHON did not work (bug?), but delaying on the toplevel type of the rule daughters does work. this reduced the parse time for Die radfahrende Frau ist schön . from 2 min 5.820 sec to 1 min 15.980 sec. 01.03.-10.03. Diff list handling for LISZT and HCONS. Reduced memory and time by 6% but some sentence that could not be parsed until now due to memory exceptions can be parsed now. 06.03.-09.03 Implementation of offline interface for [incr tsdb()]. Now it is possible to work without X connection and without PVM. Implementation of LKB compliant MRS output. 29.02.2004 changed MRS treatement and put LISZT and HCONS to the toplevel to avoid delayed appends due to missing semantic contributions in traces. And doubling of the information due to appending it in fillers and in traces. The result was an increase of processing time by 6,6% also the memeory requirement was reduced by 7.6 % (some edges were missing, do not know why. I guess if I found the difference, more memory would be needed, and parsing times would be even worse). Reverted to the version before. 23.02.2004 fixed semantics of empty_noun rule for scopal adjectives 22.02.2004 fixed spurious ambiguities for introduction of extraposed adjuncts 179 -> 147 edges for "ihn zu lieben gestern" restricted extraposition 147 -> 139 edges for "ihn zu lieben nicht" 21.02.2004 fixed semantics of relative adverb `wo' adjunct extraposition (= extraposition of relative clauses, noun-modifying PPs modifiers of verbs) coordinations with two conjunctions (weder noch, sowohl als auch, ...) fixed missing subcat information for "pleite" 19.02.2004 excluded spurious ambiguity with extraposition and PVP that arose since on can extrapose from the Vorfeld and also attracted arguments from the Mittelfeld. 18.02.2004 lexical rule for korrelat constructions with pronominal adverbs implemented analysis of extraposition that avoids spurious ambiguities that is based on ideas by Berthold Crysmann http://www.coli.uni-sb.de/~crysmann/papers/bc-ESSLLI03-pres.pdf fixed bug in inflection (underspecification) fixed bug with coherent constructions of object control verbs fixed bug in QUE percolation 17.02.2004 lexical rule for pronomoinal adverbs (daran) that are derived from prepositions. 16.02.2004 introduced max_ feature to avoid the unblocking of the delayed constraint del. This gave a speedup of 56% for long sentences (15-20 words) and a reduction of memory requirement of 82%. restricted h_e to dsl:none for the head_dtr. This breaks extraposition in multiply occupied Vorfelds but otherwise one cannot work with the grammar. It reduces the number of passive edges licensed by the h_e rule from 20675 to 3094 on the Babel Test Suite. 14.02.2004 fixed relative clauses with infinitival VPs containing the relative pronoun added modification reading for day_nouns added imperative inflection implemented semantic treatment of coordination according to the 2003 version of MRS pronominal adverbs 13.02.2004 fixed da blocking for participles of auxiliaries, where the embedded participle itself was treated as the DA until the combination with the participle caused a failure. reduced the number of edges from 169 to 115 for: Der Mann wird geliebt gehabt . fixed semantics in coordinated structures fixed spurious ambiguities with "nennen" 09.02.2004 use of macro/2 instead of :=/2 for relative pronoun macros. This establishes independent values for morph_case and syn_case. Therefore the treatment of case syncretism in free relatives following Müller99b now works. used negation by a relational constraint to implement subject verb agreement without cuts. 08.02.2004 changed semantic representations from Verbmobil style to the 2003 version of MRS. 06.02.2004 fixed inflection for modals reorganized subject verb agreement constraints this made it possible to remove the type no_noun 04.02.2004 made genetive rule more restrictive reduced the number of edges for "Treu wird Karl seiner Frau sein ." from 2847 to 2157. 03.02.2004 added lexical items for b-ger-ts fixed SPR passing in head extra phrases excluded trace in genitive rule 02.02.2004 removed restrictions since they were blocked in most cases by delay mechanism, introduced special list for counting (s_subcat) 01.02.2004 fiexed extraposition from relative phrase reduced edges for predicate complexes (to much delayed constraints ...) 30.01.2004 restricted the number of arguments in clauses with V1 and predicate complex 29.01.2004 fixed extraposition with v-last sentences, lexical items 28.01.2004 fixed adjunction to verbal complexes with extracted elements: Schön ist Maria nicht . fixed adjunction to extracted elements Gelesen wird dieses Buch oft . 27.01.2004 new analysis for depictive predicates introduction of a difference between auxiliary relations and main relations into the type hierarchy. avoidance of multiple readings in sentences like Er hat oft geschlafen. 26.01.2004 control verbs with control by PP (verlangen von jemandem) 25.01.2004 reorganized introduction of nonlocal dependencies now extraposition works in a reasonable speed (factor >2 of time without complement extraposition) 24.01.2004 (complement) extraposition (factor 10 of time without complement extraposition) 23.01.2004 fixed bug regarding infinitive morphology treatement of prepositions like `vom', `zum' fixed type of positional `es' added w-determiners fixed bug in case treatment in the morphology of determiners reduced number of edges from 126,473 to 124,245 (=1.8%) 22.01.2004 fixed adjectives like "pleite" which only occur predicatively 20.01.2004-21.01.2004 NPs with missing nominal head 18.01.2004-19.01.2004 fixed bug in multiple vorfeld LR that introduced wrongly instantiated SYNSEM|LOC|CAT|HEAD|DSL values due to a sharing of head in input and output of the lr. Mult fronting with a stranded particle does not work yet. A special lexical rule for PV+Mult-Front is needed, or the special V1 rule for PVs has to be changed. 31.10.2003 fixed bug in case assignment accounted for adjuncts in the mittelfeld that refer to an embedded verb in a verbal complex 31.07.2003 fixed bug regarding xcomp of the positional `es' 04.06.2003 positional `es' genitive rule wh pronouns 03.06.2003 object control verbs (incoherent construction) 02.06.2003 analysis of the passive PP as adjunct 23.05.2003 - nouns with sentential arguments - fixed treatement of blocked subjects in nonfinite verbs now also accounts for subjectless verbs (needed in raising constructions with scheinen) - modal infinitives 21.05.2003 fixed perfect with movement verbs added passive von-PPs cleaned up macro hierarchy 18.05.2003 dative passive tested MRS output with TSDB improved scopal/intersective adverbs 17.05.2003 nouns with arguments fixed subject verb agreement, raising verbs, and subjectless predicates 16.05.2003 coordination semantics fixed tsdb and out of memory exceptions raising verbs with zu infinitive eliminated some of the homomorphism warnings 15.05.2003 scoping adjectives partial fronting 12.05.-14.05.2003 coordination 10.05.-11.05.2003 cleaning up the type hierarchy, now all types have lubs 07.05.2003 added adjunct extraction, got the expected performance desaster complementizer phrases (modifying and non-modifying) modifying prepositions 06.05.2003 hacked mrs output 02.05.2003 integrated memory statistics in tsdb.pl/sic.pl scopal adverbs 28.04.2003-01.05.2003 scrmabling first tried with a generalization of the subcat principle. This does not work because of restrictions that are delayed and should not. Problem with verb movement traces. Used a delayed constraint for the permutation of subcat lists in lexical entries. This does not harm with verb movement. The delay is resolved when the actual verb is found. 28.04.2003 chart display integrated with parser now shows new edges during a parse preparation for interactive rule application 27.04.2003 -- 23.04.2003 possesive pronouns extension of the lexicon and systematic testing of NP_Agreement with TSNLP test suite 22.04.2003 ditransitive verbs 20.04.2003 adjectives with expletive subjects 19.04.2003 copula + predicative adjectives adjective inflection lexical rule derivation of participles irregular forms of copula and werden 18.04.2003 phase verbs, coherent construction combination of zu and infinititve by a rule unergative verbs taking CP objects agentive passive wheather verbs 15.04.2003 - 17.04.2003 Implementation of the communication from TSDB++ to Prolog, C-programm loading saved state, loading a grammar and executing a parse + statistics. extension of the lexicon 13.04.2003 - 14.04.2003 free relative clauses case assignment for finite verbs fixed bugs improved efficency by 44% 12.04.2003 started systematic testing fixed bugs improved efficiency by 67% 11.04.2003 perfect auxiliary, argument raising, and verbal complexes implemented output generation for TSDB++ output to ASCCi-File 10.04.2003 verbs with prepositional complements transitive unaccusative verbs some endings for strong verbs 09.04.2003 subjectless verbs 09.04.2003 - 10.04.2003 Particle verbs 09.04.2003 morphology component writing lexical entries, manly nouns with different inflection classes 08.04.2003 intransitive unerg/unaccusative verbs transitive unerg verbs 07.04.2003 Implementation of relative clauses 06.04.2003 Implementation of verb movement 01.04.2003 - 05.04.2003 Implementation of intransitive/transitive verbs, nouns, adjectives, determiners Head-Argument structures Head-Adjunct structures Head-Filler structures Head-Specifier structures rudimentary lexical rules for morphology Interface to the chartdisplay