Auto Topic: dimension

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1

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Covered Dimensions

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dimension

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Auto Topic: convolutionCO_OCCURSAuto Topic: dimension7
Auto Topic: dimensionCO_OCCURSAuto Topic: kernel6
Auto Topic: dimensionCO_OCCURSAuto Topic: pixels6
Auto Topic: dimensionCO_OCCURSAuto Topic: stride5
Auto Topic: cnnCO_OCCURSAuto Topic: dimension5
Auto Topic: dimensionCO_OCCURSPropositional Logic4
Auto Topic: cnnsCO_OCCURSAuto Topic: dimension4
Auto Topic: convolutionalCO_OCCURSAuto Topic: dimension3

Evidence Chunks

SourceConfidenceMentionsSnippet
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.677ion of aK-d tree balanced binary tree. We start with a set of examples and at the root node we split them along the ith dimension by testing whether xi ≤ m, where m is the median of the examples along Section 19.7 Nonparametric Models 707 the ith dimension; thus half the examples ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.635... attan distance is used if they are dissimilar, such as age, weight, and gender of a patient. Note that if we use the raw numbers from each dimension then the total distance will be affected by a change in units in any dimension. That is, if we change the height dimension from met ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.593... lysis has existed in statistics, begin- ning with the work on uniform convergence theory (Vapnik and Chervonenkis, 1971). The so-called VC dimension provides a measure roughly analogous to, but more general than, the VC dimension ln |H| measure obtained from PAC analysis. The VC ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.593dimensional array of hidden units, where the third dimension is of size d. It is im- portant to organize the hidden layer this way, so that all the kernel outputs from a particular image location stay associated with that location. Unlike the spatial dimensions of the image, howe ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.572ation to the measurements in each dimension. We can compute the meanNormalization µi and standard deviation σi of the values in each dimension, and rescale them so that x j,i becomes (x j,i −µi)/σi. A more complex metric known as the Mahalanobis distance takesMahalanobis distance ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.572hly analogous to, but more general than, the VC dimension ln |H| measure obtained from PAC analysis. The VC dimension can be applied to continuous function classes, to which standard PAC analysis does not apply. PAC-learning theory and VC theory were first connected by the “four G ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.572... s is aGaussian filter. Recall that the zero-mean Gaussian function Gaussian filter with standard deviationσ is Gσ(x) = 1√ 2πσ e−x2/2σ2 in one dimension, or Gσ(x,y) = 1 2πσ2 e−(x2+y2)/2σ2 in two dimensions. Applying a Gaussian filter means replacing the intensity I(x0,y0) with the su ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... s essentially two-dimensional. When the robot has arms and legs that must also be controlled, the search space becomes many-dimensional—one dimension for each joint angle. Advanced techniques are required just to make the essentially continuous search space finite (see Chap- ter 2 ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... sion we didn’t have to worry about overfitting. But with multivariable linear regression in high-dimensional spaces it is possible that some dimension that is actually irrelevant appears by chance to be useful, resulting in overfitting. Thus, it is common to useregularization on mu ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... way closest to the minimum, just because the corners are pointy. And of course the corners are the points that have a value of zero in some dimension. In Figure 19.14(b), we’ve done the same for the L2 complexity measure, which repre- sents a circle rather than a
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551. And of course the corners are the points that have a value of zero in some dimension. In Figure 19.14(b), we’ve done the same for the L2 complexity measure, which repre- sents a circle rather than a diamond. Here you can see that, in general, there is no reason for the intersec ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... se are outliers; in general it will be hard to find a good value for them because we will be extrapolating rather than interpolating. In one dimension, these outliers are only 2% of the points on the unit line (those points wherex<. 01 or x>. 99), but in 200 dimensions, over 98% o ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... lar to the construction of aK-d tree balanced binary tree. We start with a set of examples and at the root node we split them along the ith dimension by testing whether xi ≤ m, where m is the median of the examples along
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... data are linearly separable in this space! This phenomenon is actually fairly general: if data are mapped into a space of sufficiently high dimension, then they will almost always
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... data are linearly separable in this space! This phenomenon is actually fairly general: if data are mapped into a space of sufficiently high dimension, then they will almost always be linearly separable—if you look at a set of points from enough directions, you’ll find a way to mak ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... even for innocuous-looking kernels. For example, the poly- nomial kernel, K(x j,xk) = (1 + x j · xk)d, corresponds to a feature space whose dimension is Polynomial kernel exponential in d. A common kernel is the Gaussian: K(x j,xk) =e−γ|x j−xk|2 . 19.7.6 The kernel trick This the ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... been projected down to two dimensions. But many data sets have dozens or even millions of dimensions. In order to visualize them we can do dimension- ality reduction, projecting the data down to a map in two dimensions (or sometimes to three dimensions, which can then be explore ...
textbook
Artificial-Intelligence-A-Modern-Approach-4th-Edition.pdf
0.551... Kernel organized units in a subsequent layer) is called convolution.4 Convolution Kernels and convolutions are easiest to illustrate in one dimension rather than two or more, so we will assume an input vector x of size n, corresponding to n pixels in a one- 3 Similar ideas can be ...