Báo cáo khoa học: "Polarized Unification Grammars" ppt

... light on some common features of these formalisms. 2 Polarities and unification 2.1 Polarized Unification Grammars Polarized Unification Grammars generate sets of finite structures. A structure ... value in HPSG. This paper presents a new family of formal- isms, Polarized Unification Grammars (PUGs). PUGs extend Unification Grammars with an explicit control of the saturatio...

Ngày tải lên: 08/03/2014, 02:21

... TREE UNIFICATION GRAMMAR Frdd Popowich School of Computing Science Simon Fraser University Bumaby, B.C. CANADA V5A 186 ABSTRACT Tree Unification Grammar is a declarative unification- bas~:l ... female entity named John). COMPARISON The name "Tree Unification Grammar" suggests that TUG might be related to other unification- based frameworks as well as to other t...

Ngày tải lên: 21/02/2014, 20:20

Ngày tải lên: 17/03/2014, 07:20

... said in this report about semantic constraints in HODL. Currently, MODL exercises constraints by unification of semantic types. Prolog terms representing type requirements on slot-fillers must ... but the more common way of exercising constraints in logic grammars by parameter passing and unification seems to be ade- quate linguistically and notationally more compact, as well as m...

Ngày tải lên: 31/03/2014, 17:20

... new approach to morpho-syntactic analysis through Humor 99 (High-speed Unification Mo.rphology), a re- versible and unification- based morphological analyzer which has already been integrated ... A Unification- based Approach to Morpho-syntactic Parsing of Agglutinative and Other (Highly) Inflectional ... ing conventions) of morpheme classes that are more precise than usual. 4 Uni...

Ngày tải lên: 23/03/2014, 19:20

... idiosyncratic and am- biguous nature of dictionary entries), we employ a parsing engine exploiting unification and back- tracking, and using a single grammar consisting of three different sets ... X. suffix) 4.3 Parsing t~,n~'l:te,m,:l, x, Oerivl ++Ooriv. Parsing proper makes use of unification and backtrracking to handle identification of segments (i tin is separately define...

Ngày tải lên: 24/03/2014, 02:20

... J l~ Unification • Copying [] Other I " Figure 7. Relative Cost of Operations with Lazy Unification Lazy Unification copies less than 7% of the nodes copied under eager unification. ... DAG's involving convergent arcs. Reversible unification may also over copy, as will be shown below. LAZY UNIFICATION I now present Lazy Unification (LU) as a new approach...

Ngày tải lên: 24/03/2014, 02:20

Ngày tải lên: 18/02/2014, 16:20

Ngày tải lên: 19/02/2014, 16:20

Ngày tải lên: 19/02/2014, 19:20