pgm | Probabilistic Graphical Model | Topic Modeling library
kandi X-RAY | pgm Summary
kandi X-RAY | pgm Summary
Probabilistic Graphical Model
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Top functions reviewed by kandi - BETA
- Calculate the Sgdal gradient
- Calculate the logpotentials of a feature table
- Logarithm of a function
- Helper function to compute the gradient of the function
- Compute the logarithm
- R Compute the expectation of the model
- Returns the state path for the given observation sequence
- Computes the viterbi for a given sequence
- Build the Viterbi path
- Train the BAM algorithm
- Backward computation
- Forward computation
- Performs a slow sgd algorithm
- Sample from x
- Return a list of feature features
- Compute the perceptron model
- Computes the argmax for the maximum path
- Preprocess the input data
- Compute the log likelihood of a function
pgm Key Features
pgm Examples and Code Snippets
Community Discussions
Trending Discussions on pgm
QUESTION
I am working with .tif images. I try to read a .tif image in order to access it later on pixel level and read some values. The error that I get when using Pillow is this:
...ANSWER
Answered 2022-Mar-13 at 14:09Your image is 4-channels of 32-bits each. PIL doesn’t support such images - see Available Modes here.
I would suggest tifffile
or OpenCV’s cv2.imread(…, cv2.IMREAD_UNCHANGED)
QUESTION
Vsam file creation -
...ANSWER
Answered 2022-Mar-11 at 15:27The data you provided shows a record length of 37. It should be 35.
I modified the question section for the record to make it code so there was a fixed width font as it was confusing me where the record lines up. If I made an error please correct.
Your key in the FD
section (EMP-ID
)starts in offset 0; it should be offset 1.
QUESTION
In my project, i'd like to save one of the frames from Hevc file. I'm using FFmpeg in source code to decode the Hevc file and get AVFrame and AVCodecContext. What i need is to save the frame as picture(with full colors).
I have tried to save it as *.pgm file, so the picture is just grey, which not really i need.
Any suggesstion? Thanks!
...ANSWER
Answered 2022-Mar-10 at 22:48Converting raw HEVC file to sequence of images image using FFmpeg CLI, is simple.
Assume input.265
is the input file (raw HEVC video stream):
Converting to PNG images:
QUESTION
I am trying to modify a .pgm file sample data below.
...ANSWER
Answered 2022-Feb-25 at 17:00Remove the -like
operation - if the input string doesn't contain H:
, -replace
will simply return the string as-is, so there's no need to "pre-filter" the data:
QUESTION
I have been learning buffer overflows and i am trying to execute the following command through shellcode /bin/nc -e /bin/sh -nvlp 4455
. Here is my assembly code:
ANSWER
Answered 2021-Dec-29 at 14:12As you can see in strace
, the execve command executes as:
execve("/bin//nc", ["/bin//nc", "/bin//nc-e //bin/bash -nvlp 4455"], NULL) = 0
It seems to be taking the whole /bin//nc-e //bin/bash -nvlp 4455
as a single argument and thus thinks it's a hostname. In order to get around that, the three argv[]
needed for execve()
is pushed seperately.
argv[]=["/bin/nc", "-e/bin/bash", "-nvlp4455"]
These arguments are each pushed into edx, ecx, and ebx. since ebx needs to be /bin/nc, which was already done in the original code. we just needed to push 2nd and 3rd argv[] into ecx and edx and push it into stack. After that we just copy the whole stack into ecx, and then xor edx,edx
to set edx as NULL.
Here is the correct solution:
QUESTION
Environment:
...ANSWER
Answered 2021-Dec-23 at 11:26Found that MYSQL
upgraded to 5.7.36
from 5.7.32
version and due to this gerrit service was not starting and failing with above errors.
Solved by replacing existing mysql-connector-java-5.1.43.jar
with recent mysql-connector-java-5.1.49.jar
in gerrit.
QUESTION
I am calling a shell script that does some processing from JCL using BPXBATCH like this:
...ANSWER
Answered 2021-Dec-16 at 16:27To answer your question first: BPXBATCH runs in one address space, and the shell runs in a second address space. Commands issues by the shell may run in the same address space as the shell, or may run in more additional address spaces.
The BPXBATCH address space has got a service class, and the shell address space(s) has got a service class, probably a different one. Each service class has its own performance goal, and this tells the system how to manage that work.
Detailed AnswerThe z/OS workload manager (WLM) is responsible to assign work to a service classes when it is presented the new work. Service classes specify performance goals, and importance levels, not priorities. WLM manages all work in the system according to is performance goal based on the importance of the goal.
There are a couple (workload management) subsystems, that may start new work. Examples of such subsystems are
- JES, which manage batch work, i.e. batch jobs.
- TSO, which manages interactive TSO user work (TSO login).
- OMVS, which manages forked, and non-locally spawned z/OS UNIX work.
- STC, which manages started job workload.
This list is not complete; I listed only the subsystems that I need to answer the question.
When JES2/3 receives a job that shall run on the system, it presents some job attributes to WLM, and WLM assigns the job to a service class. It does so using WLM classification rules for subsystem type JES, and the attributes given.
Everything that runs in this job, i.e. in the job's address space will be managed towards the performance goal of the sercive class assigned. This includes z/OS UNIX work that is run in this very address space, i.e. work that is not started via UNIX fork(), or non-local spawn().
When a z/OS UNIX process starts an new process via fork(), or via non-local spawn(), this new work is handled by the WLM subsystem OMVS. The OMVS subsystem presents some attributes of the new process to WLM, and WLM assigns the process to a service class. It does so using WLM classification rules for subsystem type OMVS, and the attributes given. This kind of work is always runs in a separate, new address space.
BPXBATCH starts the (first) UNIX command it is told via PARM=
, or //STDPARM
, as a new process using either fork(), or spawn(). The spawn() may be a local spawn(), or a non-local spawn(). Which one is done depends on many factors, too complex to explain here.
The important point here is, when running BPXBATCH
with PARM='SH ...'
, the shell proces will always run in a separate, new address space and will be classified via WLM subsystem OMVS.
The result is BPXBATCH is running in one address space with its service class, and the shell is run in a second address space with its service class. The service classes may be the same, but usually they are different WLM defintions with different performance goals.
As a starter, have a look at z/OS MVS Planning: Workload Management
nice() on z/OS UNIXnice() has no effect on z/OS UNIX, unless the system has been setup to support it. There is parameter PRIORITYGOAL(...)
in BPXPRMxx parmlib member to setup a list of up to 40 WLM service classes that will be used in conjunction with nice(). I have never heard of anyone having set this parameter.
See z/OS MVS Initialization & Tuning Reference for details about BPXPRMxx member
QUESTION
Using Matlab, I want to move the images present in the same directory in two new directories according to their name.
In the directory there are two set of image' name: 'neg-0.pgm', 'neg-1.pgm', 'neg-2.pgm', ... and 'pos-0.pgm', 'pos-1.pgm', 'pos-2.pgm', ...
I tried different functions to change the image directory but I wasn't able to make the operation successfully.
My code is:
...ANSWER
Answered 2021-Dec-10 at 22:44I believe there are two issues going on:
1 - using strcmp
in the if statement with a wildcard (*) may not work properly
2 - use movefile
instead of save
.
https://www.mathworks.com/help/matlab/ref/movefile.html
See below code (use after you have made the new directories):
QUESTION
I'm trying to use some simple I/O macros introduced in book "Assembler Language Programming for IBM Z System Servers" (Macros introduced in Appendix B section). But when I'm tryin to run the sample program, as soon as program reach the first macro system dump occurs. Also there is IEF686I in the output. I'm a student learning IBM assembly language and I'm not familiar with JCL and I don't know if I'm doing something wrong in it. Is the format of getting input and assigning the output area OK or I should do it in a different way? Here is the JCL:
...ANSWER
Answered 2021-Nov-18 at 11:15Something is wrong with your private macro PRINTOUT, or something is wrong with the stetup done before calling the macro in line 6 of your assembler source. I can't tell what it is, because you didn't provide details about that macro (others have suggested to rerun the job with PRINT GEN).
Lack of more information, this is my analysis of what happened:
This is the ABEND information printed in the joblog
QUESTION
I have a basic image viewer (mostly just trying to learn the quirks of QGraphicsView rather than labels) that I'm trying to allow some basic zoom and pan functionality. It loads a directory of images the user can click through, but fails to load the image. It will return the dimensions, but receives a float division by zero arrow when trying to set the scene. I have tried setting as a QImage, but it doesn't seem to make a difference.
actions_test.py
...ANSWER
Answered 2021-Nov-05 at 03:57The problem is you are constructing the ImageViewer with another QGraphicsView that you made in Qt Designer, "qgraphic_image", as its parent. This makes it a child widget inside of that parent graphics view, and it's effectively invisible as its viewport rect has no size (that is why you got a division by 0 error).
You can remove the "qgraphic_image" from your UI file, for now I just replaced it in the layout to try it:
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You can use pgm like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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