In telecommunication and information theory, broadcasting refers to a method of transferring a message to all recipients simultaneously. Broadcasting can be performed as a high level operation in a program, for example broadcasting Message Passing Interface, or it may be a low level networking operation, for example broadcasting on Ethernet. Please use the numpy-broadcasting tag for questions relating to numpy's array broadcasting behavior.
Questions tagged [broadcasting]
285 questions
3
votes
2 answers
How to receive Broadcast message in java
I am new to the area of computer networks so please bear with me. Below is the code I am using to broadcast datapacket over internet from the server but I do not know how to receive the broadcasted message at client side. Can anybody help me with…
Michelle
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3
votes
2 answers
How to use broadcasting with my numpy arrays (3000,3) and (3,2,3000)
I have 2 arrays currently with shapes v1=(3000,3) and v2=(3,2,3000). The 3000 is a time dimension so v1 has 3000 (1,3) samples and v2 has 3000 (3,2) samples. I wish to do matrix multiplication and broadcast along the 3000 dimension so that I get…
seanysull
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Julia - Multiplication of values in an array
If I have an array A with random values, I would like define an array B with, for each i in length A, B[i] = (A[i])²
First, I tried the following code:
using Distributions
A = rand(Uniform(1,10),1,20)
B = A
for i in 1:20
B[i] =…
Julien
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tensorflow variable assign broadcasting
is there any method in tensorflow can achieve the broadcasting assignment to matrix (tf.Variable)
something like the following code....
a = tf.Variable(np.zeros([10,10,10,10], np.int32))
# creating a mask and trying to assign the 2nd, 3rd…
Wan-Duo Kurt Ma
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3
votes
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pandas dataframe subtraction causing nan
I have a pandas dataframe:
>>> X_df.shape
Out[35]: (177, 2762)
>>> X_df.ix[0:5,1000:1005]
Out[40]:
1000 1001 1002 1003 1004 1005
2016-01-04 119.225 nan nan nan nan nan
2016-01-05 119.225 119.189…
dayum
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Node.js express websocket not broadcasting to all connected clients
Im trying to create a node websocket for messaging and broadcasting using openshift. Below is my code.
var WebSocketServer = require('ws').Server;
var http = require('http');
var ipaddr = opneshift_ip;
var port = openshift_port;
var server =…
Singaramani Thangavel
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3
votes
2 answers
Broadcasting in Python with permutations
I understand that transpose on an ndarray is intended to be the equivalent of matlab's permute function however I have a specific usecase that doesn't work simply. In matlab I have the following:
C = @bsxfun(@times, permute(A,[4,2,5,1,3]),…
Mike Vandenberg
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votes
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How to play RTMP video streaming in ios app?
HI I'm developing Broadcast App for that I'm using Videocore library now how can i play that streaming video in ios app i tried with the MpMoviePlayer but it won't support the rtmp stream. so is there any third party libraries available for RTMP…
Bittoo
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Broadcast the real time MySQL database table data
I need to broadcast the real time database table to my web application (Asp.net).
I know I can implement it using SignalR and SqlDepedency. But the issue is my database is MySQL. I have done lot of research on how to implement it using MySQL. But…
Dev
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votes
1 answer
Bluetooth Low Energy Peripheral mode
I get some infomation that Android devices can now function in Bluetooth Low Energy (BLE) peripheral mode. Apps can use this capability to broadcast their presence to nearby devices from New in Android L.I'm making an application about this.
I was…
Weiming Zhang
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votes
0 answers
Use MediaRecorder for live streaming / broadcasting into continuous 5-second segmented files among Android phones
I am using MediaRecorder for live broadcasting among Android phones, but I don't want to use socket-based method. I want to record into 5-second segmented files, e.g.:
LIVE000.mp4 for the first 5 seconds
LIVE001.mp4 for the next 5 seconds
...
And…
Dobby
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3
votes
1 answer
Webcam Live Broadcast android
Yesterday when I was searching for different kinds of apps in Google Play, I found several apps that broadcast live camera feed from the mobile. I made some research like what would be the concept. But could not find many details. Can anyone briefly…
Seshu Vinay
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votes
1 answer
Cell Broadcasting in iPhone
Does iOS 5 onwards support Cell Broadcast messaging, and can we access the messages?
We want our application to receive messages through Cell Broadcast technology, so we need to be able to read those (alerts, small text messages, sometimes images)…
Dave
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1 answer
Product and sum without addtional memory allocation
Is there away to multiply two arrays and sum along an axis (or multiple axes) without allocating extra memory?
In this example:
import numpy as np
A = np.random.random((10, 10, 10))
B = np.random.random((10, 10, 10))
C = np.sum(A[:, None, :, :,…
Tohiko
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votes
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codenameone IOS entitlements for multicast udp
My UDP broadcast code for IOS mysteriously stopped working. Code from
the same source still works on old iphones, which makes me suspect some
snafu in the build process. According to some docs, apple…
ddyer
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