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DSpace at MIT (28,952 recursos)
This site is a university repository providing access to the publication output of the institution. Registered users can set up email alerts to notify them of newly added relevant content. A certain level of encryption and security is embedded in the site which may cause some users accessibility problems.

Mostrando recursos 41 - 60 de 123

41. Cooperative Physics of Fly Swarms: An Emergent Behavior - Poggio, M.; Poggio, T.
We have simulated the behavior of several artificial flies, interacting visually with each other.

42. Learning from Incomplete Data - Ghahramani, Zoubin; Jordan, Michael I.
Real-world learning tasks often involve high-dimensional data sets with complex patterns of missing features.

43. Reciprocal Interactions Between Motion and Form Perception - Sinha, Pawan
The processes underlying the perceptual analysis of visual form are believed to have minimal interaction with those subserving the perception of visual motion (Livingstone and Hubel, 1987; Victor and Conte, 1990).

44. How are Three-Deminsional Objects Represented in the Brain? - Buelthoff, Heinrich H.; Edelman, Shimon Y.; Tarr, Michael J.
In all experiments recognition performance was: (1) consistently viewpoint dependent; (2) only partially aided by binocular stereo and other depth information, (3) specific to viewpoints that were familiar; (4) systematically disrupted by rotation in depth more than by deforming the two-dimensional images of the stimuli.

45. On the Convergence of Stochastic Iterative Dynamic Programming Algorithms - Jaakkola, Tommi; Jordan, Michael I.; Singh, Satinder P.
Recent developments in the area of reinforcement learning have yielded a number of new algorithms for the prediction and control of Markovian environments.

46. Hierarchical Mixtures of Experts and the EM Algorithm - Jordan, Michael I.; Jacobs, Robert A.
We present a tree-structured architecture for supervised learning.

47. The Quadric Reference Surface: Theory and Applications - Shashua, Amnon; Toelg, Sebastian
The theoretical component of this work involves the question of whether one can find a unique (and simple) mapping that aligns two arbitrary perspective views of an opaque textured quadric surface in 3D, given (i) few corresponding points in the two views, or (ii) the outline conic of the surface in one view (only) and few corresponding points in the two views.

48. Forecasting Global Temperature Variations by Neural Networks - Miyano, Takaya; Girosi, Federico
The regularization network, optimized by stochasticsgradient descent associated with colored noise, gives the bestsforecasts.

49. A Formulation for Active Learning with Applications to Object Detection - Sung, Kah Kay; Niyogi, Partha
We discuss a formulation for active example selection for function learning problems.

50. Geometric Structure of the Adaptive Controller of the Human Arm - Shadmehr, Reza; Mussa-Ivaldi, Ferdinando
The objects with which the hand interacts with may significantly change the dynamics of the arm.

51. Measure Fields for Function Approximation - Marroquin, Jose L.
The computation of a piecewise smooth function that approximates a finite set of data points may be decomposed into two decoupled tasks: first, the computation of the locally smooth models, and hence, the segmentation of the data into classes that consist on the sets of points best approximated by each model, and second, the computation of the normalized discriminant functions for each induced class.

52. Priors Stabilizers and Basis Functions: From Regularization to Radial, Tensor and Additive Splines - Girosi, Federico; Jones, Michael; Poggio, Tomaso
We had previously shown that regularization principles lead to approximation schemes, as Radial Basis Functions, which are equivalent to networks with one layer of hidden units, called Regularization Networks.

53. Conditions for Viewpoint Dependent Face Recognition - Schyns, Philippe G.; Bulthoff, Heinrich H.
Poggio and Vetter (1992) showed that learning one view of a bilaterally symmetric object could be sufficient for its recognition, if this view allows the computation of a symmetric, "virtual," view.

54. Example Based Image Analysis and Synthesis - Beymer, David; Shashua, Amnon; Poggio, Tomaso
In our technique: -- the mapping from novel images to a vector of "pose" and "expression" parameters can be learned from a small set of example images using a function approximation technique that we call an analysis network; -- the inverse mapping from input "pose" and "expression" parameters to output images can be synthesized from a small set of example images and used to produce new images using a similar synthesis network.

55. 3D Object Recognition: Symmetry and Virtual Views - Vetter, Thomas; Poggio, Tomaso; B'ulthoff, Heinrich
Many 3D objects in the world around us are strongly constrained.

56. Geometric and Algebraic Aspects of 3D Affine and Projective Structures from Perspective 2D Views - Shashua, Amnon
We investigate the differences --- conceptually and algorithmically --- between affine and projective frameworks for the tasks of visual recognition and reconstruction from perspective views.

57. Observations on Cortical Mechanisms for Object Recognition andsLearning - Poggio, Tomaso; Hurlbert, Anya
This paper sketches a hypothetical cortical architecture for visual 3D object recognition based on a recent computational model.

58. Policy Improvement for POMDPs Using Normalized Importance Sampling - Shelton, Christian R.
The estimator does not assume any knowle ge of the POMDP and allows the experience to be gathered with an arbitrary set of policies.

59. An Empirical Comparison of SNoW and SVMs for Face Detection - Alvira, Mariano; Rifkin, Ryan
Impressive claims have been made for the performance of the SNoW algorithm on face detection tasks by Yang et.

60. An Electronic Market-Maker - Chan, Nicholas Tung; Shelton, Christian
This paper presents an adaptive learning model for market-making under the reinforcement learning framework.

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