We examine the impact of domain on parse selection accuracy, in the context of precision HPSG parsing using the English Resource Grammar, using two training corpora and four test corpora and evaluating using exact tree matches as well as dependency F-scores. In addition to determining the relative impact of invs. cross-domain parse selection training on parser performance, we propose strategies...

AI1STI"{AC'r: .~is papcr is about an implcmentcd natural languagc intcrfacc that transl;ltcs from English into semantic net rclatioils and from sem;}l1tic net rclalions btlCk int{) ..:nglish. l.he parscr and companion gcncrator wcrc implcmentcd for two reasolls: (a) to cnablc cxperimcntal work in support of a thcory of learning by analogy; (b) to dcmonstratc tlle viability of a theory of parsin...

We examine the impact of domain on parse selection accuracy, in the context of precision HPSG parsing using the English Resource Grammar, using two training corpora and four test corpora and evaluating using exact tree matches as well as dependency F-scores. In addition to determining the relative impact of invs. cross-domain parse selection training on parser performance, we propose strategies...

Agrobacterium rhizogenes and Agrobacterium tumefaciens are plant pathogenic bacteria capable of transferring DNA fragments [transfer DNA (T-DNA)] bearing functional genes into the host plant genome. This naturally occurring mechanism has been adapted by plant biotechnologists to develop genetically modified crops that today are grown on more than 10% of the world's arable land, although their u...

The mutualistic interaction in arbuscular mycorrhiza (AM) is characterized by an exchange of mineral nutrients and carbon. The major benefit of AM, which is the supply of phosphate to the plant, and the stimulation of mycorrhization by low phosphate fertilization has been well studied. However, less is known about the regulatory function of carbon availability on AM formation. Here the effect o...