connectedness | easy way to check network connection
kandi X-RAY | connectedness Summary
kandi X-RAY | connectedness Summary
Check network connection and speed with a single method call. connectedness first checks your access to the network (wifi or mobile 1X/3G/LTE), then determines your network's speed by loading a dummy resource. It checks this network speed with a default timeout of 5 seconds, then compares your speed to the approximate national average 3G network - if it is slower than this average, an error is thrown for you to handle as you please.
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QUESTION
I'm making a randomly generated network where the node will send a message randomly to two nodes. The receiving nodes will then forward the message to two other nodes if they haven't know the message before (represented with updated parameter in the ned file). Nodes that already know the message will only delete the message. There's no problem with constructing the network, but running the network make the program not responding with only "Finished with an error" message after close the not responding program.
Here's my code:
Ned file:
...ANSWER
Answered 2020-Nov-22 at 13:10First of all, inside each do-while loop you have created a new variable (inner). However, then the outer one is compared. The loop should look like:
QUESTION
I'm making a randomly generated network where the node will send an update massage after asking if the other node already know the update. Currently the update status is still predefined. I'm getting this error message when running the simulation:
...ANSWER
Answered 2020-Nov-03 at 22:30In the line:
QUESTION
I'm making a randomly generated network where the node will send an update massage after asking if the other node already know the update. Currently the update status is still predefined. I'm getting this error message when running the simulation:
...ANSWER
Answered 2020-Oct-22 at 06:12You have to change the line
QUESTION
The Problem:
I've implemented Knuth's DLX "dancing links" algorithm for Pentominoes in two completely different ways and am still getting incorrect solutions. The trivial Wikipedia example works OK (https://en.wikipedia.org/wiki/Knuth%27s_Algorithm_X#Example), but more complex examples fail.
Debugging the full Pentominoes game requires a table with almost 2,000 entries, so I came up with a greatly reduced puzzle (pictured below) that is still complex enough to show the errant behavior.
Below is my trivial 3x5 Pentominoes example, using only 3 pieces to place. I can work through the algorithm with pen and paper, and sure enough my code is doing exactly what I told it to, but on the very first step, it nukes all of my rows! When I look at the connectedness, the columns certainly do seem to be OK. So clearly I'm misunderstanding something.
The Data Model:
This is the trivial solution I'm trying to get DLX to solve:
Below is the "moves" table, which encodes all the valid moves that the 3 pieces can make. (I filter out moves where a piece would create a hole size not divisible by 5)
- The left column is the encoded move, for example the first row is piece "L", placed at 0,0, then rotated ONE 90-degree turn counter-clockwise.
- vertical bar (|) delimiter
- First 3 columns are the selector bit for which piece I'm referring to. Since "l" is the first piece (of only 3), it has a 1 in the leftmost column.
- The next 15 columns are 1 bit for every spot on a 3x5 pentominoes board.
ANSWER
Answered 2020-Jul-24 at 04:15The issue you're seeing with your hand-run of the algorithm is that a matrix with no rows is not a solution. You need to eliminate all the columns, just getting rid of the rows is a failure. Your example run still has 12 columns that need to be solved left, so it's not a success.
QUESTION
Dear fellow programmers,
I'm trying to analyze a high dimensional data set (31 variables, 1100 observations) through a penalized vector autoregression.
Since I'm using the techniques introduced by Diebold et. al (2019) to build a network of connectedness through variance decomposition matrices. I would like to use their package in r: https://www.rdocumentation.org/packages/vars/versions/1.5-3/topics/fevd
However, this package can only be used with a regular VAR estimate. I would like to use a penalized regression, such a LASSO. So How can I use their package in R, with a penalized VAR?
What did I try? Their is Lassovars package on github, however, I can't use it in the fevd() function. It says: only uses estimate from the Vars class.
Hope to hear from you!
Kind regards,
Bart
...ANSWER
Answered 2020-Jun-27 at 12:48Providing a candidate solution to this very interesting problem using example data below. To fit the penalised VAR I've used the recently released BigVAR package. At this point it doesn't come with the usual extra functionality of producing FEVDs, historical decomps, prediction fancharts etc., but all the necessary output from the reduced-form model can be obtained through cv.BigVAR
. This is what I've done as a first step below. I'll leave it to yourself to finetune the reduced-form estimation using the package functionality.
QUESTION
I'm working on a handwritten digit recognition problem, using OpenCV for preprocessing and Keras/Tensorflow for inference. I trained a model on the MNIST handwritten digit dataset, where each image is 28x28 pixels. Now I'm working with a new set of digits and I plan to do further training with the original model architecture and transfer learning via weight initialisation.
So here's my problem: I'm having an issue with losing certain features when I downsize to 28x28 pixels. Here's an example
That's meant to be a two, and the tiny gap in the top loop is important in helping differentiate it from a 9 or an 8. But my preprocessed version loses the gap, so the loop looks closed.
I have posted another question about how to do the downsizing without losing the features. On the other hand, maybe I'd like to downsize to a larger size like 56x56 pixels where I'm less likely to lose such features. How can I set things up such that this new size blends in with the model without rendering the pre-trained weights useless?
Here is the definition of the pre-trained model:
...ANSWER
Answered 2020-Jan-23 at 22:14Why don't you upscale the MNST for training? Your question is about the resolution of the image, the MNST dataset was created long ago when GPU memories were still very small. Recent models all have image dimensions bigger than 200 * 200
, for example, resnet uses 224*224
as input shape. Since your image is already low resolution from the beginning, and you downscale and you will make the model hard to differentiate each other. Since your model is fairly simple, I would suggest to upscale the training dataset.
And yes, if you use pooling you mentioned, you probably loose information also.
Hope this helps.
QUESTION
I am trying to create a graph with randomly connected nodes.
Nodes should be connected randomly and if a node is already connected to another node, it shouldn't be connected to the same node again using different inout
port.
In the docs there is this example to create a random graph:
...ANSWER
Answered 2019-Nov-11 at 19:55The example you used should be corrected in the manual. The inner for-loop has to start from the current value of the index in outer loop. Moreover, the operator ++
should be used for gates, because according to OMNeT++ Manual:
The gatename++ notation causes the first unconnected gate index to be used.
Thanks to ++
there is no need to maintain the index of the gate to connect.
The last change: both input and output gates should be connected when the condition is met.
The corrected code of your NED may looks like:
QUESTION
I'm currently displaying serial output from my embedded device in a Mac OS terminal using the command
...ANSWER
Answered 2019-Apr-23 at 06:38You can use boost serial port to read the incoming data. Be aware that this will have to be done in a thread or using Qt Concurrent. From this thread you can send signals that connected to the correct slots of your data display will take the data and display it. However, Qt also provides a serial port class that you can use: QSerialPort. I would recomend using QTextEdit as your display widget and QTextEdit::append for your slot.
QUESTION
I have a set of data where the nodes have an attribute showing the name of the team to which they belong. I would like to work out the stats for a) the whole network and then b) the stats for each team comparing their connectivity etc. (Lets say I am comparing who sends emails to who and therefore the degree of connectedness of the team. Here is my sample code:
...ANSWER
Answered 2018-Nov-15 at 12:43You can use itertools.groupby
:
QUESTION
I am analysing network graph connectedness, measuring in_degrees and out_degrees of all nodes.
I am seeking to show the results as shown in this video at 02:00
As you can see the lecturer has plotted in_degrees on the x-axis and out_degrees on the y-axis. The colour scale represents the number of nodes which have those x,y characteristics. His example is simple with a minimum of 0 and a maximum of 3 on each axis.
I have produced data in the format of
...ANSWER
Answered 2018-Aug-11 at 07:49Here is an example to obtain a heat-map graph using the count data:
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