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Local ambiguity packing and discontinuity in German
, 2007
"... We report on recent advances in HPSG parsing of German with local ambiguity packing (Oepen and Carroll, 2000), achieving a speedup factor of 2 on a balanced testsuite. In contrast to earlier studies carried out for English using the same packing algorithm, we show that restricting semantic featur ..."
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Cited by 6 (4 self)
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We report on recent advances in HPSG parsing of German with local ambiguity packing (Oepen and Carroll, 2000), achieving a speedup factor of 2 on a balanced testsuite. In contrast to earlier studies carried out for English using the same packing algorithm, we show that restricting semantic
Introduction Memory Requirements and Local Ambiguities of Parsing Strategies
"... Memory requirements and local ambiguities are two considerations that have played an important role in shaping the parsers adopted in the psycholinguistic and computational linguistic ..."
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Memory requirements and local ambiguities are two considerations that have played an important role in shaping the parsers adopted in the psycholinguistic and computational linguistic
Interpretation as Abduction
, 1990
"... An approach to abductive inference developed in the TACITUS project has resulted in a dramatic simplification of how the problem of interpreting texts is conceptualized. Its use in solving the local pragmatics problems of reference, compound nominals, syntactic ambiguity, and metonymy is described ..."
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Cited by 687 (38 self)
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An approach to abductive inference developed in the TACITUS project has resulted in a dramatic simplification of how the problem of interpreting texts is conceptualized. Its use in solving the local pragmatics problems of reference, compound nominals, syntactic ambiguity, and metonymy is described
Optimal Structure From Motion: Local Ambiguities and Global Estimates
, 1998
"... "Structure From Motion" (SFM) refers to the problem of estimating threedimensional information about the environment from the motion of its twodimensional projection onto a surface (for instance the retina). We present an analysis of SFM from the point of view of noise. This analysis res ..."
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Cited by 34 (1 self)
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are "fundamental", i.e. intrinsic to the problem of SFM and not an artifact introduced by our algorithms. We classify and interpret geometrically local extrema, and we argue that they correspond to phenomena observed in visual psychophysics. Finally, we show under what conditions it is possible
Optimal Structure from Motion: Local Ambiguities and Global Estimates
, 2000
"... “Structure From Motion” (SFM) refers to the problem of estimating spatial properties of a threedimensional scene from the motion of its projection onto a twodimensional surface, such as the retina. We present an analysis of SFM which results in algorithms that are provably convergent and provably o ..."
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Cited by 30 (5 self)
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of the original cost function. As a consequence, we can plot the reduced cost function and characterize the configurations of structure and motion that result in local minima. As an example, we discuss two local minima that are associated with wellknown visual illusions. Knowledge of the topology of the residual
Robust Distributed Network Localization with Noisy Range Measurements
, 2004
"... This paper describes a distributed, lineartime algorithm for localizing sensor network nodes in the presence of range measurement noise and demonstrates the algorithm on a physical network. We introduce the probabilistic notion of robust quadrilaterals as a way to avoid flip ambiguities that otherw ..."
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Cited by 403 (20 self)
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This paper describes a distributed, lineartime algorithm for localizing sensor network nodes in the presence of range measurement noise and demonstrates the algorithm on a physical network. We introduce the probabilistic notion of robust quadrilaterals as a way to avoid flip ambiguities
Optimal Structure From Motion: Local Ambiguities and Global Estimates ∗
, 1997
"... “Structure From Motion ” (SFM) refers to the problem of estimating spatial properties of a threedimensional scene from the motion of its projection onto a twodimensional surface, such as the retina. We present an analysis of SFM which results in algorithms that are provably convergent and provably ..."
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of the original cost function. As a consequence, we can plot the reduced cost function and characterize the configurations of structure and motion that result in local minima. As an example, we discuss two local minima that are associated with wellknown visual illusions. Knowledge of the topology of the residual
Optimal Structure From Motion: Local Ambiguities and Global Estimates
"... We present an analysis of SFM from the point of view of noise. This analysis results in an algorithm that is provably convergent and provably optimal with respect to a chosen norm. In particular, we cast SFM as a nonlinear optimization problem and de ne a bilinear projection iteration that converges ..."
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that converges to xed points of a certain costfunction. We then show that such xed points are \fundamental", i.e. intrinsic to the problem of SFM and not an artifact introduced by our algorithm. We classify and characterize geometrically local extrema, and we argue that they correspond to phenomena
On the Role of Feedback Signals: A Computational Model for Resolving Local Ambiguity in Vision
"... • What is the role of feedback signals in the visual cortex? • We have developed a computational model which provide an idea of how the signals carried by cortical neurons ..."
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• What is the role of feedback signals in the visual cortex? • We have developed a computational model which provide an idea of how the signals carried by cortical neurons
Results 1  10
of
1,885