Personal site of Wouter Bultenhttps://www.wouterbulten.nl/https://www.wouterbulten.nl/posts/home-assistant-smart-home-setup-two-years-later/https://www.wouterbulten.nl/posts/home-assistant-smart-home-setup-two-years-later/Overview of my current hardware for my smart home powered by Home Assistant. An update on my previous post of four years ago (!) when I had just started with home automation.Thu, 06 Jul 2023 00:00:00 GMThttps://www.wouterbulten.nl/posts/auto-turn-on-off-chromecast/https://www.wouterbulten.nl/posts/auto-turn-on-off-chromecast/Quick Node-RED tutorial on automatically turning on a TV when streaming media.Sun, 01 Jan 2023 00:00:00 GMThttps://www.wouterbulten.nl/posts/panda-challenge/https://www.wouterbulten.nl/posts/panda-challenge/Artificial intelligence (AI) for prostate cancer analysis is ready for clinical implementation, shows a global programming competition, the PANDA challenge.Thu, 13 Jan 2022 00:00:00 GMThttps://www.wouterbulten.nl/posts/home-assistant-automatic-dark-mode/https://www.wouterbulten.nl/posts/home-assistant-automatic-dark-mode/Quick tutorial on setting up an automatic dark mode for Home Assistant.Thu, 09 Jul 2020 00:00:00 GMThttps://www.wouterbulten.nl/posts/local-face-recognition-part-2-learning-faces/https://www.wouterbulten.nl/posts/local-face-recognition-part-2-learning-faces/Second post of my series on face recognition for presence detection in Home Assistant. In this post, I create a face recognition system.Mon, 01 Jun 2020 00:00:00 GMThttps://www.wouterbulten.nl/posts/presence-detection-face-recognition-part-1/https://www.wouterbulten.nl/posts/presence-detection-face-recognition-part-1/Face recognition can be a cool addition to a smart home but has potential severe privacy issues. In this post, I start building on a completely local alternative to cloud-based solutions. This first part focusses on face detection.Fri, 29 May 2020 00:00:00 GMThttps://www.wouterbulten.nl/recipes/blueberry-cheesecake-ice-cream/https://www.wouterbulten.nl/recipes/blueberry-cheesecake-ice-cream/Rich ice cream with a fresh tangy blueberry swirl. Using a dehydrator we can add an extra dimension to the blueberry swirl.Wed, 13 May 2020 00:00:00 GMThttps://www.wouterbulten.nl/posts/improve-prostate-cancer-diagnosis-panda-challenge/https://www.wouterbulten.nl/posts/improve-prostate-cancer-diagnosis-panda-challenge/Can you build a deep learning model that can accurately grade prostate biopsies? Participate in the PANDA challengeThu, 09 Apr 2020 00:00:00 GMThttps://www.wouterbulten.nl/posts/potential-of-ai-in-medicine-improving-prostate-cancer-diagnosis/https://www.wouterbulten.nl/posts/potential-of-ai-in-medicine-improving-prostate-cancer-diagnosis/In a completely new study we investigated the possible benefits of an AI system for pathologists. Instead of focussing on pathologist-versus-AI, we instead look at potential pathologist-AI synergy.Tue, 25 Feb 2020 00:00:00 GMThttps://www.wouterbulten.nl/recipes/dark-chocolate-ice-cream-sous-vide/https://www.wouterbulten.nl/recipes/dark-chocolate-ice-cream-sous-vide/The key to rich and dark chocolate ice cream is replacing chocolate with pure cocoa mass.Fri, 14 Feb 2020 00:00:00 GMThttps://www.wouterbulten.nl/recipes/sous-vide-ice-cream-base/https://www.wouterbulten.nl/recipes/sous-vide-ice-cream-base/The ice cream base is the most important part of ice making, but can be difficult to get right. Heating the base sous vide helps to reduce errors.Sun, 26 Jan 2020 00:00:00 GMThttps://www.wouterbulten.nl/recipes/chocolate-brownie-mousse-cake-entremet/https://www.wouterbulten.nl/recipes/chocolate-brownie-mousse-cake-entremet/This dark chocolate entremet is a great way to end a dinner. Sour Amarena cherries nicely complement the richness of the chocolate.Sat, 25 Jan 2020 00:00:00 GMThttps://www.wouterbulten.nl/recipes/dark-chocolate-bonbon-ruby-speculaas-filling/https://www.wouterbulten.nl/recipes/dark-chocolate-bonbon-ruby-speculaas-filling/The richness of dark chocolate paired with the fruitiness of Ruby chocolate and a speculaas spice mix makes for a great fall and winter bonbon.Sat, 19 Oct 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/home-automation-setup-docker-compose/https://www.wouterbulten.nl/posts/home-automation-setup-docker-compose/Docker-compose is a convenient way to setup and configure your home automation system. In this post, I describe my setup and the configuration needed to run the containers.Thu, 17 Oct 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/prostate-epithelium-segmentation-deep-learning-immunohistochemistry/https://www.wouterbulten.nl/posts/prostate-epithelium-segmentation-deep-learning-immunohistochemistry/We developed a new deep learning method to segment epithelial tissue in digitized hematoxylin and eosin (H&E) stained prostatectomy slides using immunohistochemistry (IHC) as reference standard.Fri, 02 Aug 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/peso-dataset-whole-slide-image-prosate-cancer/https://www.wouterbulten.nl/posts/peso-dataset-whole-slide-image-prosate-cancer/Public dataset of prostatectomy whole-slide images for epithelium segmentation, licensed under a BY-NC-SA Creative Commons license.Mon, 29 Jul 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/automated-gleason-grading-deep-learning/https://www.wouterbulten.nl/posts/automated-gleason-grading-deep-learning/We developed a fully automated deep learning system to grade prostate biopsies using 5759 biopsies from 1243 patients, and showed that this system achieved pathologist-level performance.Tue, 23 Jul 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/home-assistant-smart-home-hardware-setup/https://www.wouterbulten.nl/posts/home-assistant-smart-home-hardware-setup/Continuously updated overview overview of the tech I use in my smart home.Mon, 04 Feb 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/custom-wake-up-light-with-node-red/https://www.wouterbulten.nl/posts/custom-wake-up-light-with-node-red/Using Node-RED and Home Assistant and would you like to build a custom full room wake-up light? In this post I show my setup and explain how to build a wake-up light using Node-RED.Sun, 27 Jan 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/data-augmentation-using-tensorflow-data-dataset/https://www.wouterbulten.nl/posts/data-augmentation-using-tensorflow-data-dataset/The tf.data API of Tensorflow is a great way to build a pipeline for sending data to the GPU. In this post I give a few examples of augmentations and how to implement them using this API.Fri, 18 Jan 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/ikea-tradfri-temp-and-brightness-with-home-assistant/https://www.wouterbulten.nl/posts/ikea-tradfri-temp-and-brightness-with-home-assistant/A small trick to set the color temperature and brightness of IKEA Tradfri lights simultaneously using Home Assistant and/or Node-RED.Thu, 17 Jan 2019 00:00:00 GMThttps://www.wouterbulten.nl/posts/talking-to-my-house-telegram-homeassistant-bot/https://www.wouterbulten.nl/posts/talking-to-my-house-telegram-homeassistant-bot/In this blog post I discuss talking (or chatting) to your home using a Telegram bot. I cover making a new Telegram bot, connecting it to Home Assistant and then building functionality using AppDaemon.Sat, 15 Dec 2018 00:00:00 GMThttps://www.wouterbulten.nl/recipes/ruby-chocolate-bonbons/https://www.wouterbulten.nl/recipes/ruby-chocolate-bonbons/Tutorial on making ruby chocolate bonbons with various fillings.Sun, 18 Nov 2018 00:00:00 GMThttps://www.wouterbulten.nl/posts/unsupervised-cancer-detection-using-deep-learning-adversarial-autoencoders/https://www.wouterbulten.nl/posts/unsupervised-cancer-detection-using-deep-learning-adversarial-autoencoders/Prostate cancer is graded based on distinctive patterns in the tissue. At MIDL2018 I presented an unsupervised deep learning method, based on clustering adversarial autoencoders, to train a system to detect prostate cancer without using labeled data.Sun, 21 Oct 2018 00:00:00 GMThttps://www.wouterbulten.nl/posts/epithelium-segmentation-using-deep-learning/https://www.wouterbulten.nl/posts/epithelium-segmentation-using-deep-learning/Building systems to detect tumor, in this case prostate cancer, is often hard due to a lack of data. Tumor annotations made by pathologists are often coarse due to time constraints. With this project we want to automatically refine these annotations by building a system that can automatically filter out irrelevant parts of the data.Tue, 26 Jun 2018 00:00:00 GMThttps://www.wouterbulten.nl/posts/custom-wake-up-light-with-home-assistant/https://www.wouterbulten.nl/posts/custom-wake-up-light-with-home-assistant/In this post I will show you how to build a custom wake-up light system. The automation will be configurable (on/off, time) and has a switch to disable it on weekends.Sat, 28 Apr 2018 00:00:00 GMThttps://www.wouterbulten.nl/recipes/perfect-chocolate-mousse-my-go-to-recipe/https://www.wouterbulten.nl/recipes/perfect-chocolate-mousse-my-go-to-recipe/A rich and versatile recipe for chocolate mousse. My go-to recipe. Can be used for entremets, filling molds or on its own.Mon, 26 Feb 2018 00:00:00 GMThttps://www.wouterbulten.nl/recipes/vegan-dark-chocolate-creme-flan/https://www.wouterbulten.nl/recipes/vegan-dark-chocolate-creme-flan/Vegan experiment: A dark chocolate crème mimicking the richness of an egg-based dessert.Sun, 05 Nov 2017 00:00:00 GMThttps://www.wouterbulten.nl/posts/getting-started-with-gans-2-colorful-mnist/https://www.wouterbulten.nl/posts/getting-started-with-gans-2-colorful-mnist/In this post we build upon part 1 of 'Getting started with generative adversarial networks' and work with RGB data instead of monochrome. We apply a simple technique to map MNIST images to RGB.Fri, 13 Oct 2017 00:00:00 GMThttps://www.wouterbulten.nl/posts/getting-started-with-generative-adversarial-networks/https://www.wouterbulten.nl/posts/getting-started-with-generative-adversarial-networks/Generative Adversarial Networks (GANs) are one of the hot topics within Deep Learning right now and are applied to various tasks. In this post I'll walk you through the first steps of building your own adversarial network with Keras and MNIST.Mon, 18 Sep 2017 00:00:00 GMThttps://www.wouterbulten.nl/recipes/sous-vide-flank-steak-bavette/https://www.wouterbulten.nl/recipes/sous-vide-flank-steak-bavette/Flank steak, when prepared correctly, is one of my favorite types of beef. It has a great trade off between being not to expensive (in comparison to cuts such as tenderloin) while having lots of flavor.Wed, 12 Jul 2017 00:00:00 GMThttps://www.wouterbulten.nl/posts/import-instagram-for-jekyll/https://www.wouterbulten.nl/posts/import-instagram-for-jekyll/To integrate Instagram posts in to my website I created a small helper script that does the importing. In this post I'll explain how it works.Sat, 10 Jun 2017 00:00:00 GMThttps://www.wouterbulten.nl/posts/website-upgrade-and-jekyll-optimizations/https://www.wouterbulten.nl/posts/website-upgrade-and-jekyll-optimizations/It has been over two years since the last full update of my website itself and it was time for an upgrade!Tue, 30 May 2017 00:00:00 GMThttps://www.wouterbulten.nl/recipes/darjeeling-bergamot-lavender-bonbons/https://www.wouterbulten.nl/recipes/darjeeling-bergamot-lavender-bonbons/Dark Callebaut chocolate (54%) bonbons, filled with a milk chocolate ganache infused with Earl Grey darjeeling tea and lavenderSat, 18 Mar 2017 00:00:00 GMThttps://www.wouterbulten.nl/recipes/anise-white-chocolate-bonbons/https://www.wouterbulten.nl/recipes/anise-white-chocolate-bonbons/New experimental filling: white chocolate with anise seedsFri, 17 Mar 2017 00:00:00 GMThttps://www.wouterbulten.nl/recipes/sous-vide-crema-catalana/https://www.wouterbulten.nl/recipes/sous-vide-crema-catalana/One of my favorite, easy but delicious, recipes: crema Catalana. The great texture of a crème brûlée with the added flavors of cinnamon and citrus.Sat, 25 Feb 2017 00:00:00 GMThttps://www.wouterbulten.nl/posts/iotdi-ic2e-conference-presentation-human-slam/https://www.wouterbulten.nl/posts/iotdi-ic2e-conference-presentation-human-slam/Last week I gave a presentation at IoTDI 2016 regarding my Human SLAM research. My presentation can be viewed online.Sun, 17 Apr 2016 00:00:00 GMThttps://www.wouterbulten.nl/posts/blog-optimization-replacing-font-awesome-with-svg/https://www.wouterbulten.nl/posts/blog-optimization-replacing-font-awesome-with-svg/My blog is hosted using Jekyll which is a static site generator. Static sites are inherently fast, but I took some extra measures to achieve an even faster website. This is part 1 of the series: replacing Font Awesome.Tue, 01 Mar 2016 00:00:00 GMThttps://www.wouterbulten.nl/posts/website-status-monitor-using-jenkins/https://www.wouterbulten.nl/posts/website-status-monitor-using-jenkins/Jenkins is a great tool for continuous integration and deployment. It can also be used for monitoring websites that are live. In this post I'll show you my approach using a simple shell script.Mon, 01 Feb 2016 00:00:00 GMThttps://www.wouterbulten.nl/posts/building-a-sous-vide-temperature-monitor-part-1/https://www.wouterbulten.nl/posts/building-a-sous-vide-temperature-monitor-part-1/Part one of my custom built external water bath monitor for sous vide. Running on a Spark Core and using DS18B20 temperature sensors for measurements.Thu, 07 Jan 2016 00:00:00 GMThttps://www.wouterbulten.nl/posts/publishing-es6-package-to-npm/https://www.wouterbulten.nl/posts/publishing-es6-package-to-npm/How to take an ES6/ES2015 library, transpile it with Babel, and publish it to npm so it runs on ES5 systems without elaborate build tooling.Fri, 04 Dec 2015 00:00:00 GMThttps://www.wouterbulten.nl/recipes/making-wine-salt/https://www.wouterbulten.nl/recipes/making-wine-salt/Wine salt is an easy and delicious way of using leftover wine.Fri, 23 Oct 2015 00:00:00 GMThttps://www.wouterbulten.nl/recipes/sous-vide-creme-brulee/https://www.wouterbulten.nl/recipes/sous-vide-creme-brulee/Crème brûlée can be difficult to make and there is a large risk of overcooking. By using a water bath, this classical dessert becomes very easy to make.Fri, 16 Oct 2015 00:00:00 GMThttps://www.wouterbulten.nl/recipes/the-quest-for-a-perfect-mousse-part-1/https://www.wouterbulten.nl/recipes/the-quest-for-a-perfect-mousse-part-1/In need of a fast chocolate mousse? This recipe uses a siphon to get the job done.Thu, 15 Oct 2015 00:00:00 GMThttps://www.wouterbulten.nl/posts/kalman-filters-explained-removing-noise-from-rssi-signals/https://www.wouterbulten.nl/posts/kalman-filters-explained-removing-noise-from-rssi-signals/Why RSSI signals are noisy, why that matters for indoor localization, and how a one-dimensional Kalman filter cleans them up in real time.Sun, 11 Oct 2015 00:00:00 GMThttps://www.wouterbulten.nl/posts/lightweight-javascript-library-for-noise-filtering/https://www.wouterbulten.nl/posts/lightweight-javascript-library-for-noise-filtering/KalmanJS, a tiny dependency-free Kalman filter for one-dimensional signals in the browser. Built originally for an indoor localization project.Fri, 25 Sep 2015 00:00:00 GMThttps://www.wouterbulten.nl/posts/human-slam-indoor-localization-using-particle-filters/https://www.wouterbulten.nl/posts/human-slam-indoor-localization-using-particle-filters/A particle-filter approach to indoor localization that maps a building and locates the user at the same time, using only a phone and Wi-Fi RSSI.Wed, 23 Sep 2015 00:00:00 GMThttps://www.wouterbulten.nl/posts/slacjs/https://www.wouterbulten.nl/posts/slacjs/SLAC.js, a JavaScript implementation of FastSLAM for indoor localisation. Locates the user and the access points around them at the same time.Tue, 30 Jun 2015 00:00:00 GMThttps://www.wouterbulten.nl/posts/diving-into-the-model-with-gpy/https://www.wouterbulten.nl/posts/diving-into-the-model-with-gpy/A closer look at the inner workings of GPy models, decomposing the Gaussian Process Latent Variable model parameter by parameter.Wed, 18 Feb 2015 00:00:00 GMThttps://www.wouterbulten.nl/posts/first-steps-with-gpy/https://www.wouterbulten.nl/posts/first-steps-with-gpy/A practical introduction to Gaussian processes through GPy, the Python framework maintained by the Sheffield machine learning group.Fri, 13 Feb 2015 00:00:00 GMThttps://www.wouterbulten.nl/posts/simple-wsn-simulation/https://www.wouterbulten.nl/posts/simple-wsn-simulation/A small Python simulator for wireless sensor networks I wrote during my graduation internship, with Matplotlib animations of the result.Thu, 12 Feb 2015 00:00:00 GMThttps://www.wouterbulten.nl/posts/hello-world/https://www.wouterbulten.nl/posts/hello-world/The mandatory first post of the blog. Nothing technical here, just a marker for the day the site went live in February 2015.Wed, 11 Feb 2015 00:00:00 GMT