Tag: …

Custom loss function depending on batch (Tensorflow, pytorch)

Post author By Full Stack
Post date December 14, 2020
No Comments on Custom loss function depending on batch (Tensorflow, pytorch)

This is a general Question. I know how to write a custom loss function for Tensorflow that works the following way. Lets say we have a custom loss function L(y_true,y_pred) , a Neural Network NN(x) and some batch {x_1,…,x_n} with and ground truth {y_true_1,…, y_true_n}. Now Tensorflow would minimize the following objective with gradient descent: […]

Tags ..., a Neural Network NN(x) and some batch {x_1, NN(x_1), NN(x_1))+...+L(y_true_1, NN(x_n)) My Question is: Is it also possible (in TensorFlow, NN(x_n)) So basically I dont want that sum from the first objective and rather define my own function for the batch. Thanks for help!, PyTorch or wherever) to define a Loss function L_2 that is defined on the batch so that the following objective is minimized by gradient desc, This is a general Question. I know how to write a custom loss function for Tensorflow that works the following way. Lets say we have a custom, x_n} with and ground truth {y_true_1, y_pred, y_true_n, y_true_n}. Now Tensorflow would minimize the following objective with gradient descent: L(y_true_1

CMS Magento Mastering Development

Getting error in downloading repository Magento 2 via composer

Post author By Ask Me
Post date December 13, 2020
No Comments on Getting error in downloading repository Magento 2 via composer

I am using windows 10 and node js command prompt with latest composer version. The xampp already install with supporting magento2 PHP directives. When i am trying to install a new magento 2 version 2.4.x and type the command this composer create-project –repository-url=https://repo.magento.com/ magento/project-community-edition <mydirectory> I got the following error: Problem 1 – Root composer.json […]

Tags ..., 1.0.4] require composer-plugin-api ^1.1 -> found composer-plugin-api[2.0.0] but it does not match the constraint. - magento/product-communit, 1.0.4]. - Root composer.json requires magento/product-community-edition 2.4.1 -> satisfiable by magento/product-community-edition[2.4.1]. A, I am using windows 10 and node js command prompt with latest composer version. The xampp already install with supporting magento2 PHP directi

Mastering Development

Anomaly foundd using UNION ALL, GROUP BY, using subquery

Post author By Full Stack
Post date December 10, 2020
No Comments on Anomaly foundd using UNION ALL, GROUP BY, using subquery

Well, I’m pretty new on teradata, but I’m pretty sure I can understand this simple logic, except I took the logic wrong, so here’s the case : I have one table in Teradata database with some records in it, this record was imported daily from txt file given by userA, for some reason I decided […]

Tags ..., "colN", 2, 3, 4, 5, and also 1 record from serverfile, and another 1 record from serverfile, but I'm pretty sure I can understand this simple logic, but why it didn't return 2 when I do the logic1? Not to mention I even got another 1 group with count(*) equals 3, but why It return 3, col2, Count(*) From ( Txt_file UNION ALL server_file) GROUP BY 1, except I took the logic wrong, for some reason I decided to extract the exact same data from userA server directly without waiting for userA giving his txt file. But before, how come? The when I check the records by its value, I found 1, I got 1 group with count(*) equals 1, I'm pretty new on teradata, If both records from txtfile and serverfile are the same, it will return for every group count equal 2 right?? Because I have check it there are no any duplicates for each txtfile and serverfile, like I said I found exactly the same 1 record from txt, meanwhile when I check the same record from txtfile, N Ofc, no idea at all. Did I miss something?, ofc I have to compare both data first, say called it logic1: Select Col1, so here's the case : I have one table in Teradata database with some records in it, so if there are any duplicates there it will only occur if and only if both txtfile and serverfile UNION ALL-ish. But, this record was imported daily from txt file given by userA, using this logic, Well, whether they equal or not with the data that I usually get daily from txt file. Then I decided to so UNION ALL and GROUP BY inside a subquer

Mastering Development

Counting spatial points within a polygon according to a temporal window

Post author By Full Stack
Post date December 7, 2020
No Comments on Counting spatial points within a polygon according to a temporal window

Overview Using R, I would like to count the number of points within a polygon according to a specific criterion (a temporal window). I have the following data: Geo-located survey data that include the date of the survey interview. Thus, I am able to pinpoint exactly when and where each survey was conducted and to […]

Tags ..., 90 days, buffer) I get the following error: Error in `[.data.frame`(x@data, buffer) This gives me the total number of rallies that occur within each buffer, but doesn't allow me to specify temporal windows. For example, but it's not working: buffer$count_30 0 & buffer$date - rallies$date <= 3, drop = FALSE) : undefined columns selected In addition: Warning messages: 1: In unclass(time1) - unclass(time2) : longer object length i, each polygon within my buffer shapefile has a different date of interview. Here's what I've tried, etc. Generally, i, I am able to pinpoint exactly when and where each survey was conducted and to map them out across the United States. Geo-located data about, I created a set of circular 50 mile buffers around each survey respondent. My goal is to count the number of political rallies that falls wit, I created some mock shapefiles with dates and locations to aid in replication. Approach I am trying to use GISTools::poly.counts to count t, I would like to count the number of points within a polygon according to a specific criterion (a temporal window). I have the following data, I would simply use: count <- GISTools::poly.counts(rallies, including the date of the interview. Data Using QGIS, it would be great to develop a count of the number of rallies within a buffer for the 30 days preceding the survey interview as well as the 9, j, Overview Using R, to count the number of points within a polygon

Mastering Development

Why are format codes “%-m” and “%-d” not working when parsing dates using the datetime module?

Post author By Full Stack
Post date December 6, 2020
No Comments on Why are format codes “%-m” and “%-d” not working when parsing dates using the datetime module?

my_dates = [[‘y’, ‘d’, ‘t’, ‘d’, ‘2/1/2021’, ”], [‘v’, ‘d’, ‘t’, ‘t’, ‘7/2/2020’, ”], [‘v’, ‘d’, ‘t’, ‘t’, ’10/1/2020′, ”], [‘d’, ‘t’, ‘t’, ‘t’, ’12/1/2023′, ”]] my_dates.sort(key=lambda date: datetime.strptime(date[4], "%-m/%-d/%y")) print(my_dates) I am trying to sort the dates in my list of lists from oldest to newest using a lambda function. I was reading the […]

Tags ..., ''], '']] my_dates.sort(key=lambda date: datetime.strptime(date[4], '10/1/2020', '12/1/2023', '2/1/2021', '7/2/2020', "\t", "%-m/%-d/%y")) print(my_dates) I am trying to sort the dates in my list of lists from oldest to newest using a lambda function. I was readi, (v, 02, 12 and %m Month as a zero-padded decimal number. 01, 12 but I am getting this error: File "C:\Python\Python39\lib_strptime.py", 2, d, in _strptime raise ValueError("'%s' is a bad directive in format '%s'" % ValueError: '-' is a bad directive in format '%-m/%-d/%y', line 341, my_dates = [['y'

Mastering Development System & Network

AutoSSH through Firewall – Best practice for many devices on network?

Post author By Server Questions
Post date December 6, 2020
No Comments on AutoSSH through Firewall – Best practice for many devices on network?

My team is trying to find a solution to remotely access and update multiple Linux devices behind a firewall at several locations with their own firewalls. Traditionally, we would visit the business’ physical site and update the devices with Ansible running from within their network, or make changes via RDP and individual SSH access. Port […]

Tags ..., {device: 2, My team is trying to find a solution to remotely access and update multiple Linux devices behind a firewall at several locations with their o, not even for a bastion. ||REMOTE SERVER|| ===> ||LOCATION 1 FIREWALL|| ===> [DEVICE 1, or make changes via RDP and individual SSH access. Port forwarding is not an option, we would visit the business' physical site and update the devices with Ansible running from within their network

Mastering Development

Looping ASCII characters and decrypting the message

Post author By Full Stack
Post date December 5, 2020
No Comments on Looping ASCII characters and decrypting the message

My teacher gave me a homework: – You are given a string (of at most 100 characters) consisting of lowercase characters, terminated with a # symbol. The string is the "encrypted" form of an original string as follows – each character in the original string has been shifted by a fixed integer n (where 1<= […]

Tags ..., ... and so on. n is not known to you. You only know that the first character represents 't'. From this information, 'b' becomes the (n+1)th character in the alphabet, &a); } a = 't'; int temp = a - array[0]; //To get the offset of the encrypted message. for(i = 0; i < counter;, &a); int counter = 0; // to count the size of the string while(a != '#') { array[i] = a; i++; c, and z is the 25th character of the alphabet, in the encrypted version, My teacher gave me a homework: - You are given a string (of at most 100 characters) consisting of lowercase characters, terminated with a # symbol. The string is the "encrypted" form of an original string as follows - each character in the original string has b, we have: 'a' becomes the nth character in the alphabet, you have to output the original string. Here is my code for it: - #include #include int main() { char array[100];

Mastering Development System & Network

AutoSSH through Firewall – Best practice for many devices on network?

Post author By Server Questions
Post date December 5, 2020
No Comments on AutoSSH through Firewall – Best practice for many devices on network?

Tags ..., {device: 2, and it seems to work well, but there is pushback from other members on the team to go with solution 1 to remain a 1-1 inventory of every device (Which should just be th, connection seems easy enough with ssh -t location_1 ssh user@192.168.0.2, DEVICE N] ... ===> ||LOCATION N FIREWALL|| ===> [DEVICE 1, DEVICE N] (executing cmds) ===> ||LOCATION 2 FIREWALL|| ===> [DEVICE 1, DEVICE N] ===> ||LOCATION 3 FIREWALL|| ===> [DEVICE 1, DEVICE N] What is best practice with AutoSSH, My team is trying to find a solution to remotely access and update multiple Linux devices behind a firewall at several locations with their o, not even for a bastion. ||REMOTE SERVER|| ===> ||LOCATION 1 FIREWALL|| ===> [DEVICE 1, or am I crazy for thinking the rest of the team is crazy?, or is there an alternative that would work better for maintaining these devices? We have two solutions so far. Solution 1 - AutoSSH for ever, or make changes via RDP and individual SSH access. Port forwarding is not an option, or some ansible config for proxy command. I've done a proof of concept for solution 2, running Ansible commands from the remote server, we would visit the business' physical site and update the devices with Ansible running from within their network, which could result in needless network overhead. It also seems like a needless amount of work for adding and removing devices from that netwo

Database Development

Database design for companyCode and branchCode

Post author By Jessica Alba
Post date December 4, 2020
No Comments on Database design for companyCode and branchCode

I’m using JPA, hibernate and mariadb and I’ve come across a db design situation like this: There are two entities Company and Branch with one to many relationship, each company has many branches. Company will have companyCode in the format of "A01", "A02"..,"A99", "B01", "B02",…,"B99",…"Z01",…,"Z99". And Branch will have branchCode with format companyCode + "-" […]

Tags ..., ..."Z01", "A01-002"... I have beat myself for a good solution and the only decent one I thought of is using table to store companySequence and branchS, "A99", "B99", "Z99". And Branch will have branchCode with format companyCode + "-" + "branchSequence" i.e. "A01-001", A02, B01, B02, each company has many branches. Company will have companyCode in the format of "A01", hibernate and mariadb and I've come across a db design situation like this: There are two entities Company and Branch with one to many relat, I'm using JPA

Mastering Development

Hashing example and description for given answer

Post author By Full Stack
Post date December 3, 2020
No Comments on Hashing example and description for given answer

Example: Suppose H:{1,…,n}–>{1,..,n} be a uniform hash function. for input x, z is equal to number of trailing zero in the right side of H(x). for 0<=c<=1 what is the order of probability z >=c log n is constant here. Answer: O(1/(n^c)) I see this answer but question and answer seems strange to me! is […]

Tags .., ..., Example: Suppose H:{1, n = 1, n} be a uniform hash function. for input x, z is equal to number of trailing zero in the right side of H(x). for 0<=c=c log n is constant here.