seed

Tensorflow `set_random_seed` not working

匿名 (未验证) 提交于 2019-12-03 02:49:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Calling tf.set_random_seed(SEED) has no effect that I can tell... For example, running the code below several times inside an IPython notebook produces different output each time: import tensorflow as tf tf.set_random_seed(42) sess = tf.InteractiveSession() a = tf.constant([1, 2, 3, 4, 5]) tf.initialize_all_variables().run() a_shuf = tf.random_shuffle(a) print(a.eval()) print(a_shuf.eval()) sess.close() If I set the seed explicitly: a_shuf = tf.random_shuffle(a, seed=42) , the output is the same after each run. But why do I need to set the

Seeding the random number generator in Javascript

匿名 (未验证) 提交于 2019-12-03 01:58:03
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Is it possible to seed the random number generator (Math.random) in Javascript? 回答1: No, it is not, but it's fairly easy to write your own generator, or better yet use an existing one. Check out: this related question . Also, see David Bau's blog for more information on seeding . 回答2: My other answer represents a more traditional algorithm, but I found Dave Scotese's comment to this answer to be a more eloquent one. Unfortunately, it's pretty slow due to string manipulation. Here's a version that is about 20 times faster and a bit

Entity Framework 5 Migrations: Setting up an initial migration and single seed of the database

匿名 (未验证) 提交于 2019-12-03 01:55:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have an MVC4 app which I've recently upgraded to Entity Framework 5 and I am trying to move our database over to using migrations from the development style of dropping and creating each run. Here's what I've done in my app start function. protected void Application_Start () { Database . SetInitializer ( new MigrateDatabaseToLatestVersion () ); ... } I ran the Enable-Migrations command on my repositories project and I thought that this would create an initial migration file however the only file it created was Configuration When

Script EF migration seed from Configuration class

匿名 (未验证) 提交于 2019-12-03 01:49:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have EF migrations working nicely, but I also want to generate the sql script for the seed data from my DbMigrationsConfiguration class. The seed data runs ok when I do Update-Database, but when I do UpdateDatabase -Script I do not get the sql for the seed inserts. I tried -Verbose on a normal Update-Database but I do not see the seed statements output there either. Is this possible? 回答1: No it is not possible. Configuration class is not part of migration itself - it is infrastructure executing the migration. You have single

Seed a random number generator with a real random number to get real random numbers?

匿名 (未验证) 提交于 2019-12-03 01:45:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: This is a general question, and not specific to a programming language. If I use a random number generator (e.g. Math.Random() in Java), the Numbers are not really random. A common practice is to seed the numbers with the local system time to get random numbers every time the program is executed. Now what if you seed with a really random number (for example from random.org). Will the numbers you get be real random numbers too? 回答1: No. It is not meaningful to speak of individual numbers as "random" or not. It is the sequence that is or is

ASP.NET Core RC2 Seed Database

匿名 (未验证) 提交于 2019-12-03 01:25:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: My problem is i am trying to seed an Entity Framework Core database with data and in my mind the below code show work. I've realised that this should not be called in the ApplicationDbContext constructor and should be called from the startup but im not sure how to do this. EDIT: Based on the solution provided by Ketrex, my solution is as follows: Startup.cs: public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory) { ... app.ApplicationServices.GetRequiredService ().Seed(); } Seed extension: public

What does numpy.random.seed(0) do?

匿名 (未验证) 提交于 2019-12-03 01:12:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: What does np.random.seed do in the below code from a Scikit-Learn tutorial? I'm not very familiar with NumPy's random state generator stuff, so I'd really appreciate a layman's terms explanation of this. np . random . seed ( 0 ) indices = np . random . permutation ( len ( iris_X )) 回答1: np.random.seed(0) makes the random numbers predictable >>> numpy . random . seed ( 0 ) ; numpy . random . rand ( 4 ) array ([ 0.55 , 0.72 , 0.6 , 0.54 ]) >>> numpy . random . seed ( 0 ) ; numpy . random . rand ( 4 ) array ([ 0.55 , 0.72 , 0.6 , 0.54

How can I generate a unique ID in Python? [duplicate]

匿名 (未验证) 提交于 2019-12-03 00:56:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: This question already has an answer here: How to create a GUID/UUID in Python 5 answers I need to generate a unique ID based on a random value. 回答1: Perhaps uuid.uuid4() might do the job. See uuid for more information. 回答2: You might want Python's UUID functions: 21.15. uuid ― UUID objects according to RFC 4122 eg: import uuid print uuid.uuid4() 7d529dd4-548b-4258-aa8e-23e34dc8d43d 回答3: unique and random are mutually exclusive. perhaps you want this? import random def uniqueid(): seed = random.getrandbits(32) while True: yield seed seed += 1

SEED Labs信息安全实验

匿名 (未验证) 提交于 2019-12-03 00:39:02
http://www.cis.syr.edu/~wedu/seed/ Shellshock 漏洞实验室 年底发现的Shellshock漏洞。 TCP/IP 攻击实验室 协议的漏洞,包括会话劫持,SYN洪泛,TCP重置攻击等。 防火墙探索实验室 内置的防火墙软件和网络代理防火墙;试验逃避防火墙的方法。 基于Elgg的实验室(SEEDUbuntu12.04VM) 基于协作的实验室(SEEDUbuntu12.04和11.04 VM) 基于PhpBB的实验室(SEEDUbuntu9.11VM) 文章来源: SEED Labs信息安全实验

How to seed data when using Model First approach?

不问归期 提交于 2019-12-03 00:09:28
So I am learning MVC3 and EF4. I tried the code first method but it was too confusing for me.. I can create the classes no problem, but the hard part comes when dealing with foreign keys and the relationships between each other. But I've gone with model first. This way I can visually design it and see where the relationships are. After my model is create, it creates a SQL for me which I execute against my SQL Express database. Done, and done. Now I want data in my tables. Of course I can just add them in using server explorer, but most likely I will be making changes to my model as I go along.