Results 291 to 300 of about 2,712,090 (356)

Global patterns of genetic admixture reveal effects of language contact

open access: yes
Graff A   +8 more
europepmc   +1 more source

An Object Grammar for Column-Convex Polyominoes

Annals of Combinatorics, 2004
In this paper we propose an object grammar decomposition for the classes of columnconvex, and directed column-convex polyominoes. As a consequence, we obtain the enumeration of such classes according to the semi-perimeter, thus giving a natural explanation of the fact that the generating functions of both the classes are algebraic.
Duchi E., RINALDI, SIMONE
openaire   +5 more sources

A stochastic graph grammar for compositional object representation and recognition

Pattern Recognition, 2009
This paper illustrates a hierarchical generative model for representing and recognizing compositional object categories with large intra-category variance. In this model, objects are broken into their constituent parts and the variability of configurations and relationships between these parts are modeled by stochastic attribute graph grammars, which ...
Zijian Xu   +3 more
openaire   +3 more sources

Atlas: Grammar-based Procedural Generation of Data Visualizations

Visual .., 2021
We present Atlas, a procedural grammar for constructing data visualizations. Unlike most visualization grammars which use declarative specifications to describe visualization components, Atlas exposes the generative process of a visualization through a ...
Zhicheng Liu   +3 more
semanticscholar   +1 more source

From object algebras to attribute grammars [PDF]

open access: possibleACM SIGPLAN Notices, 2014
Oliveira and Cook (2012) and Oliveira et al. (2013) have recently introduced object algebras as a program structuring technique to improve the modularity and extensibility of programs. We analyze the relationship between object algebras and attribute grammars (AGs), a formalism to augment context-free grammars with attributes.
Rendel, Tillmann   +2 more
openaire   +1 more source

General and specific effects of lexicon in grammar: determiner and object pronoun omissions in child Spanish.

Journal of Speech, Language and Hearing Research, 2012
PURPOSE This study explores the hypothesis that vocabulary growth can have 2 types of effects in morphosyntactic development. One is a general effect, where vocabulary growth globally determines utterance complexity, defined in terms of sentence length ...
A. Pérez-Leroux   +2 more
semanticscholar   +1 more source

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