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问题 I'm trying to implement a layer (via lambda layer) which is doing the following numpy procedure: def func(x, n): return np.concatenate((x[:, :n], np.tile(x[:, n:].mean(axis = 0), (x.shape[0], 1))), axis = 1) I'm stuck because I don't know how to get the size of the first dimension of x (which is the batch size). The backend function int_shape(x) returns (None, ...) . So, if I know the batch_size, the corresponding Keras procedure would be: def func(x, n): return K.concatenate([x[:, :n], K

问题 When using SFINAE to select constructor overloads in the past, I have typically used the following: template <typename T> class Class { public: template <typename U = T, typename std::enable_if<std::is_void<U>::value, int>::type=0> Class() { std::cout << "void" << std::endl; } template <typename U = T, typename std::enable_if<!std::is_void<U>::value, int>::type=0> Class() { std::cout << "not void" << std::endl; } }; However, I just came across this alternative: template <typename U = T,

问题 I have multiple projects in my solution, all .NET Core 3.1. One of them is my core project (“ A Project ”) where I just have basic model classes with no methods or database access. For demonstration purposes, below are simplified versions of my Address.cs and User.cs files: public class Address { public int Id {get;set;} public string AddressText {get;set;} public virtual User User {get;set;} } public class User { public int UserId {get;set;} public int UserName {get;set;} public ICollection

问题 I'm setting and removing a class on a 'circle' element inside an SVG block with jQuery. This works in all recent browsers I've tested but results in an error in IE (9 & 10, possibly all of them). jQuery(document).ready(function($) { console.log('Console running'); var $circle = $('svg circle'), clicked = false; $circle.on({ click: function(e) { setClick($(this)); } }); function removeClick(callback) { $('svg').find('.clicked').removeAttr("class"); console.log('clicked removed'); callback(); }

问题 I am following a tutorial and it says ES modules uses live bindings. It means a feature to support cyclical dependencies. But I don't clearly understand this concept. What does this mean? 回答1: Live bindings is a concept introduced in ES modules. It means that when the exporting module changes a value, the change will be visible from the importer side. This is not the case for CommonJS modules. Module exports are copied in CommonJS. Hence importing modules cannot see changes happened on the

问题 JSON.NET JsonObjectAttribute has a property Id. It's inherited from the JsonContainerAttribute. I cannot find, for what is the Id property is used? 回答1: It's used by Json.NET Schema to override the default "$id" property value when generating a schema for a type. E.g. if I have the following type: [JsonObject(Id = "http://foo.bar/schemas/rootobject.json")] public class RootObject { } And auto-generate a schema using JSchemaGenerator as follows: var schema = new JSchemaGenerator().Generate

问题 JSON.NET JsonObjectAttribute has a property Id. It's inherited from the JsonContainerAttribute. I cannot find, for what is the Id property is used? 回答1: It's used by Json.NET Schema to override the default "$id" property value when generating a schema for a type. E.g. if I have the following type: [JsonObject(Id = "http://foo.bar/schemas/rootobject.json")] public class RootObject { } And auto-generate a schema using JSchemaGenerator as follows: var schema = new JSchemaGenerator().Generate

问题 I run a Kubernetes cluster on my mac using the latest Docker community edition. I usually do: $ minikube start --vm-driver=hyperkit and it works well for me. Today, I ran that command multiple times in a script. Now, how do I know how many minikube VMs are running on a mac? How do I delete all but one of them? Can I see a list of all minikube vms running? $ minikube status shows: minikube: Running cluster: Running kubectl: Correctly Configured: pointing to minikube-vm at 192.168.64.3 Is

问题 This question already has an answer here : Apple Push Notification service server certificate update (1 answer) Closed 3 days ago . I got this mail from Apple. "On March 29, 2021, token and certificate-based HTTP/2 connections to the Apple Push Notification service must incorporate the new root certificate (AAACertificateServices 5/12/2020) which replaces the old GeoTrust Global CA root certificate. To ensure a seamless transition and to avoid push notification delivery failures, verify that

问题 Is there any option to load a pickle file in chunks? I know we can save the data in CSV and load it in chunks. But other than CSV, is there any option to load a pickle file or any python native file in chunks? 来源： https://stackoverflow.com/questions/59983073/how-to-load-pickle-file-in-chunks