Tag：weight

Time：2021919
1、 Basic knowledge summary: Explanation: （1）XRefers to the weight between the input layer or hidden layer and the corresponding layerWThe result of vector sum with its input data;WRefers to the weight of the level; Subscript middleh，orefer tohiddenLayer andoutputData corresponding to layer (2) The third formula is the weight update formula, αRepresents the learning rate […]

Time：2021919
Adaptive parameterized relu is a dynamic activation function that does not “treat all inputs equally”, submitted to IEEE Transactions on industrial electronics on May 3, 2019 and hired on January 24, 2020,Published on IEEE official website on February 13, 2020。 On the basis of summarizing the traditional activation function and attention mechanism, this paper interprets […]

Time：2021916
preface:This paper will introduce how to search the semantic segmentation model based on proxylessnas. The final search model structure can reach 36 FPS test results on the CPU, and show the application of automatic network search (NAS) in semantic segmentation. With the advent of neural architecture search technology, deep learning has gradually developed to the […]

Time：2021914
preface Sigmoid function (logistic function) is a very common activation function in neural networks. Let’s have a deep understanding of sigmoid function today. Function form Function image code implementation Code run: colab import matplotlib.pyplot as plt import numpy as np import math x = np.linspace(10, 10, 100) z = 1 / (1 + np.exp(x)) plt.title(“Sigmoid”) […]

Time：2021910
Hematemesis sorting programmer must read list:https://github.com/silently9527/ProgrammerBooks WeChat official account: beta Java In the first part, we learned depth first search and knew how to find paths in the graph through depth first search; In this article, we continue to learn other application scenarios of depth first search algorithm Connected component Find all connected components from […]

Time：202196
Pat 1034head of a gang (30 points) One way that the police finds the head of a gang is to check people’s phone calls. If there is a phone call betweenAandB, we say thatAandBis related. The weight of a relation is defined to be the total time length of all the phone calls made between […]

Time：202183
Momentum strategy is one of the most popular quantitative strategies. Most CTA strategies of commodity futures are based on momentum strategy. In the stock market, momentum strategy is also one of the commonly used quantitative factors. Generally speaking, momentum strategy is “chasing up and killing down”. Next, we will introduce how to test the momentum […]

Time：2021731
1 Introduction Hello, friends. Welcome to Yuelai inn. The paper to be introduced today is a paper published by Google in 2017, called “attention is all you need” [1]. Of course, there have been a lot of analysis about this paper on the Internet, but good food is not afraid of late. The author is […]

Time：2021724
The weight of the last stone Hi, everyone, I’m Zhang Xiaozhu. Welcome to the special article of the “baby can understand” series – the official activity “30 day leetcoding challenge”. Here is the question of April 12, and also the 1046 question in the list of questions – “the weight of the last stone” Title […]

Time：2021715
Aiming at the optimization problem of anchor point detection algorithm, this paper proposes SAPd method, which uses different loss weights for anchor points in different locations, and carries out weighted common training for different feature pyramid layers, which eliminates most of the artificial rules and more follows the weights of the network itself for training […]

Time：2021715
Prediction is an important application scenario of time series related knowledge. As we said before [time series data (Part 1)], time series can be divided into stationary time series and nonstationary time series. Today, this article mainly introduces the prediction methods of stationary time series. The socalled stationary time series means that with the passage […]

Time：202178
Link to the original text:http://tecdat.cn/?p=22862 How to use Python to automatically calculate the value at risk (VaR) through Monte Carlo simulation to manage the financial risk of portfolio or stock. VaR in financial and portfolio risk management? VaR is the abbreviation of “value at risk”, which is used by many companies and banks to determine […]