In this paper, we analyze the various philosophies to define a query language for geographical database. The differences among the three possibilities of extending the SQL language rely on the definition of the clause Select: (1) the clause Select does not accept a spatial operator and the Where clause accepts one (or several) predicate defined between attributes; (2) the clause Select accepts ...

This paper presents a clause boundary identification system for Malayalam sentences using the machine learning approach CRF (Conditional Random Field).Malayalam Language is considered as a 'Left branching language' where verbs are seen at the end of the sentence. Clause boundary identification plays a vital role in many NLP applications and for Malayalam language, the clause boundary identifica...

• Clause Typing This work is part of a broader project on clause typing undertaken collaboratively with Raffaella Zanuttini. Our work on clause types begins from the following fundamental points: ∗This is part of a project funded by NSF grant BCS-0234278, ‘Clause Types: Form and Force in Grammatical Theory’, to Paul Portner and Raffaella Zanuttini. Miok Pak, and Simon Mauck, our collaborators o...

We present a method for dependency and case structure analysis that captures the consistency between intra-clause relations (i.e., case structures or predicate-argument structures) and inter-clause relations. We assess intra-clause relations on the basis of case frames and inter-clause relations on the basis of transition knowledge between case frames. Both knowledge bases are automatically acq...

The rise and fall of organizational effectiveness, an “umbrella construct” once at the forefront of organizational theory, is traced through four life-cycle stages: emerging excitement, the validity challenge, “tidying up with typologies,” and construct collapse. Although the study of effectiveness has declined, research on its component elements continues to thrive. Using the effectiveness sto...

In this paper I argue that children generally need relatively little input evidence to set word order parameters. Within a type of Split-CP model of clause structure, where different clause types are assumed to have different heads in the CP domain, I suggest that children make no global search of the primary linguistic data, but scan the input for designated word order cues, focusing exclusive...

In this paper we prove that there exists a Horn clause H such that the problem: given a Horn clause G. Is G a consequence of H ? is not recursive. Equivalently, there exists a one-clause PROLOG program such that there is no PROLOG implementation answering TRUE if the program implies a given goal and FALSE otherwise. We give a short survey of earlier results concerning clause implication and pro...

In the generative literature, clause type effects have typically been modeled in one of two ways—“truncation” whereby embedded clauses are structurally reduced relative to root clauses, and intervention, by which non-root clauses have additional material that blocks movement available in root contexts. This paper analyzes two clause type effects in Basque— the possibility of verb-initial word o...

Many aspects of the relation of different decision tree and DNF complexity measures of Boolean functions have been more or less substantially explored. This paper adds a new detail to the picture: we prove that DNF tautologies with terms conflicting in one or two variables pairwise possess a tree-like structure. An equivalent reformulation of this result (adopting the terminology of [7, 8, 9]) ...

Umbrella sampling is an efficient method for the calculation of free energy changes of a system along well-defined reaction coordinates. However, when there exist multiple parallel channels along the reaction coordinate or hidden barriers in directions perpendicular to the reaction coordinate, it is difficult for conventional umbrella sampling to reach convergent sampling within limited simulat...