selected, the next optimal action a of every State S is determined.
Based on the above formula, we can know
This is the optimal value function v * in the current state, which is obtained by adopting the optimal execution policy, the return of the optimal execution scheme is obviously better than that of other execution strategies.
Note that if we can obtain the optimal a under every second, the ing can be generated globally, and the generated ing is called the optimal ing. For the glob
: Sends updates for 10.1.0.0 and 10.2.0.0, receives 10.3.0.0 from R2, jumps by 1, stores 10.3.0.0 information in the routing table, and metric is set to 1. R2: Sends updates for 10.3.0.0 and 10.2.0.0, receives 10.1.0.0 from R1, jumps by 1, stores 10.1.0.0 information in the routing table, and metric is set to 1. Receive 10.4.0.0 of information from R3, hop number plus 1, store 10.4.0.0 information in the routing table, metric set to 1. R3: Sends updates for 10.3.0.0 and 10.4.0.0, receives 10.2.0
at the case that MDP is finite state, finite action.* Value Iterative method
1. Initialize each S's V (s) to 02. Loop until convergence {For each state s, update to V (s)}
The value iteration strategy leverages the formula in the previous section (2)The implementation of the inner loop has two strategies:1. Synchronous Iterative MethodFor the first iteration after initialization, all V (s) in the initial state is 0. Then th
at the case that MDP is finite state, finite action.* Value Iterative method
1. Initialize each S's V (s) to 02. Loop until convergence {For each state s, update to V (s)}
The value iteration strategy leverages the formula in the previous section (2)The implementation of the inner loop has two strategies:1. Synchronous Iterative MethodFor the first iteration after initialization, all V (s) in the initial state is 0. Then th
process converges. A completed optimization algorithm consists of these three parts. The process of calculating the step size can be basically independent of the first step, and the third step and the first step are the most closely related to the entire algorithm.
The evaluation of an algorithm includes the following aspects: first, the convergence speed of the algorithm, then the computing complexity of the algorithm, and finally the stability of t
boosting analysis, but it still cannot be explained that when the training error is 0, its generalization error is still decreasing, later scholars have raised the question of margin bound. In addition, the method of better understanding of boosing from another perspective is greedy boosting, that is, the process of searching for sample weight D and weak classifier weight W is a greedy process. Finally, the teacher talked about a general loss function and general boosting using this function.
systems, and machine learning
Neural Networks:
I: network connection weight optimization
II: Network Topology Optimization
The biggest weakness of the reverse propagation (BP) Method Based on the Gradient Descent Method: local problem minimization and inability to learn the network topology.
Terms of genetic algorithm:
Chromosome: Chromosome
Compatible score: Adaptive score
GENE: Gene
Genome: Genome
EPOCH: Times
Convergenc
Cisco network engineer interview questions
23 Cisco Network interview questions for Cisco senior after-sales network engineers
1. In the current 6509 and 7609, The sup720 switched bandwidth to 720 GB. Can it be said that 7609/6509 can replace part of the GSR status?
A: Some functions are acceptable. Previously, GSR was mainly located in the company's enterprise LAN core switch, while gsr was located in the WAN high-speed Core routing device. The 7609 sup720 can provide 7600G high-speed switching
through the anti-entropy propagation process to that node.
(C) in the previous mode, the use of the hint transfer technique [8] could better handle a node's operation failure. The expected update for the failed node is recorded on the additional proxy node, and it is indicated that the update is passed to the node as soon as the feature node is available. This improves consistency and reduces replication convergence time.
(D, one-time read-
all features to a range. As can be seen on the left, the contour is flattened, resulting in a slower convergence rate due to the absence of feature normalization. And the right, the house size divided by 2000, the number of bedrooms divided by 5, so that two features are transformed into the range of the 0~1, contour lines appear more uniform state, speed up the convergence rate Feature Normalization Conv
initial values. The iterative process is as follows:
K
X (k)
F (x (k))
0
2.00
8.00
1
1.38
2.04
2
1.08
0.35
3
1.00
0.02
4
1.00
0.00
conclusion: after 4 iterations, the function value becomes 0, that is, the root of the original equation has been found.The convergence condition and
is greatest, and the expected estimate of the unknown variable is given.The EM algorithm is like this, assuming we know that A and b two parameters , in the beginning of both are unknown, and know the information of a can get B information, in turn know B also got a. Consider first giving a certain initial value, in order to get the estimate of B, and then starting from the current value of B, re-estimate the value of a, the process continues until converge
the number of hidden layer nodes: (where H: The number of hidden layer nodes, M: The number of input layer nodes, N: The number of output-layer nodes, a: the adjustment constant between).
2.4 defect of standard BP neural network
(1) It is easy to form local minima without the global optimal value.(using gradient descent method), if only one local minimum => global minimum, a plurality of local minima => is not necessarily the least global. This requires the initial weight and threshold requirem
documentation
N Manipulating documents
N Publishing Notes
L Test and Error Reporting
L Project Documentation
Iii. Addressing the challenges of the stabilization phase
Stabilizing a program includes predicting
L predicting the number or severity of errors
L Predictive Error resolution process
L Estimating the quality status of each point of the scheme
L Forecast Release date
Use effective technology to help make accurate predictions
L Assume a fixed date of shipment
L Use error
This article discusses the issue of the second IP communication between the core switch and the converged switch interface.
When the core switch is configured with a second IP, the converged switch is connected to the core switch via trunk, and the configured interface IP and the second IP network segment can communicate normally when the pooled switch does not enable the 3-tier routing function, but when the converged switch enables the 3-tier routing function, The core switch does not access
Top-up gradient optimization
Extended:
The relationship of several concepts in machine learning
Successive approximation method
Issue 1: \ (Ax = b\)
For problem 1, when the order of \ (a\) is large, and the large sparse matrix equations of 0 elements are many, it is a great challenge to solve it by using the principal element elimination method. For this reason, successive approximation method (or iterative method ) comes into being, concrete reference iterative method. (e.g. conjugate
approach greatly improves consistency with a small performance sacrifice. However, formal consistency and permanence remain unchanged.
If some nodes are not available at the time because of network failure or node failure, the update will eventually pass through the anti-entropy propagation process to that node.
(C) in the previous mode, the use of the hint transfer technique [8] could better handle a node's operation failure. The expected update for the failed node is recorded o
days of November 8 to find some clues. In the early stage, a large number of disks were gathered on this platform, and the trend in the second half of the Week was just to help digest these disks. However, we can rest assured that the next trend of the dashboard will be followed. The 5-day moving average is only supported by Xiaoyang xiaoyin, And the macd red column will be enlarged. We should feel at ease before the policy is calm.
"Two shares" and
more accurate to the sudden drop after appearance
With more than a decade of experience, we will be able to learn the three magic weapons"
"No matter how good retail investors are, they will not accurately predict the time of the plunge. However, we can stick to the operating principle and 'Stop Win' in time to avoid excessive losses. "Tell the truth about how to" escape.
Summing up more than a decade of investment experience, Uncle Tong's "Great Escape" has three magic weapons. First, it is im
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