Anything can be technology. But the dictionary defines it as:
1: a: the practical application of knowledge especially in a particular area; b: a capability given by the practical application of knowledge.
2: a manner of accomplishing a task especially using technical processes, methods, or knowledge.
3: the specialized aspects of a particular field of endeavor.
Adding True/False and list value widgets to your Databricks notebook
As an engineer, I love to parametrise my applications. That’s why I love the widget-feature of Databricks notebooks, which allows me to do this with a nice UI. In this blog I’ll explore how to build a True/False widget and a list widget. I also show how to validate the values of required fields.
Trigger Lambda for large S3 Bucket with SQS
At Wehkamp we use AWS Lambda to classify images on S3. The Lambda is triggered when a new image is uploaded to the S3 bucket. Currently we have over 6.400.000 images in the bucket. Now we would like to run the Lambda for all images of the bucket. In this blog I’ll show how we did this with a Python 3.6 script.
AWS Lambda Size: PIL+TF+Keras+Numpy?
At Wehkamp we’ve been using machine learning for a while now. We’re training models in Databricks (Spark) and Keras. This produces a Keras file that we use to make the actual predictions. Training is one thing, but getting them to production is quite another!
The main problem we’ve faced was that it was too big to actually fit into a lambda. This blogs shows how we’ve dealt with that problem.
Building a high performing last viewed list using Redis
We live in a day and age in which we can choose a data-store that matches the characteristics of our apps and (micro) services. Lately we’ve been looking into Redis as a high performing store for last viewed items. In this blog I’ll look show how to create a POC with the redis-cli and then implement it using .NET Core. We’ll be using the sorted set structure.
Finetuning screen brightness with PowerShell
When I work in a low-light environment I like to have fine-grained control over the brightness of my monitor. When I change the brightness using the special function keys on my keyboard, it changes in steps of 10%! That’s a lot. PowerShell to the rescue!
Setup Jenkins (Blue Ocean) using Docker on Synology NAS
Using Docker on a Synology NAS has become really easy. It’s a bit harder to install Jenkins in a container and let it use the Docker installation it’s part of. But we are living in exciting times: bringing a fully functioning CI/CD-pipeline to your home automation has never been easier!
CI/CD for .Net Core app deployment to Raspberry Pi using Bitbucket
.Net now runs on your Raspberry Pi (awesome!). Tired of xcopying the result to your pi? In this article I’ll explore how to build a CI/CD Bitbucket pipeline that will build and deploy the app to your Raspberry Pi.
PowerShell snippet: check if software is installed
Some deployment scripts need to check if certain required software is installed on a Windows Machine. You could check if the file is present at a certain location, but there is a better way to check if software is installed: the uninstall database in the Windows Registry. PowerShell makes it really easy to query the registry!