Project Archives - Petamind https://petaminds.com/category/project/ A.I, Data and Software Engineering Mon, 20 May 2024 08:18:28 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://petaminds.com/wp-content/uploads/2019/09/ic_launcher.png Project Archives - Petamind https://petaminds.com/category/project/ 32 32 How I build automated testing for the payment terminals https://petaminds.com/how-i-build-automated-testing-for-the-payment-terminals/ https://petaminds.com/how-i-build-automated-testing-for-the-payment-terminals/#respond Thu, 16 May 2024 00:27:17 +0000 https://petaminds.com/?p=5173 Payment terminals are devices used to process card transactions and must undergo extensive certification before being released to the market. Therefore, it is essential to test them quickly and reliably. I named the project as Mastoo (code name: MR2). The MR2 architecture To achieve this, our team are building a solution for automation testing with […]

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]]> https://petaminds.com/how-i-build-automated-testing-for-the-payment-terminals/feed/ 0 The Card Payment Industry Landscape: Latest Technologies and Trends https://petaminds.com/the-card-payment-industry-landscape-latest-technologies-and-trends/ https://petaminds.com/the-card-payment-industry-landscape-latest-technologies-and-trends/#respond Sat, 20 Apr 2024 08:12:00 +0000 https://petaminds.com/?p=5188 The card payment industry is undergoing a significant transformation driven by technological advancements, evolving consumer preferences, and regulatory changes. As the world increasingly moves towards cashless transactions, understanding the latest technologies and trends in this sector is crucial for businesses, consumers, and policymakers. 1. Contactless Payments and NFC Technology Contactless payments, enabled by Near Field […]

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]]> https://petaminds.com/the-card-payment-industry-landscape-latest-technologies-and-trends/feed/ 0 Convert Callback Into Kotlin Coroutines Suspend or Deferred https://petaminds.com/convert-callback-into-kotlin-coroutines-suspend-or-deferred/ https://petaminds.com/convert-callback-into-kotlin-coroutines-suspend-or-deferred/#respond Thu, 28 Apr 2022 09:16:45 +0000 https://petaminds.com/?p=3718 Since coroutine is a hot topic in mobile development, converting vanilla JVM callback into Kotlin Coroutines is desirable. The wrapping happens using something called SuspendCoroutine. What is a SuspendCoroutine suspendCoroutine is a builder function that mainly used to convert callbacks into suspend functions. Let’s say for example you have some legacy (or not) Api, that uses callbacks. You can […]

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]]> https://petaminds.com/convert-callback-into-kotlin-coroutines-suspend-or-deferred/feed/ 0 Best Android Image Loaders – 2022 https://petaminds.com/best-android-image-loaders-2022/ https://petaminds.com/best-android-image-loaders-2022/#respond Tue, 29 Mar 2022 20:35:47 +0000 https://petaminds.com/?p=3701 In this article, we will explore some of the best Android image loaders for you. These are some of the most commonly used third-party libraries since Android SDK doesn’t provide a simple image loading solution for developers to use. Generally, you tend to have to implement one yourself or look at third-party libraries. Glide Glide […]

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]]> https://petaminds.com/best-android-image-loaders-2022/feed/ 0 Kotlin Scoping Functions apply vs. with, let, also, and run https://petaminds.com/kotlin-scoping-functions-apply-vs-with-let-also-and-run/ https://petaminds.com/kotlin-scoping-functions-apply-vs-with-let-also-and-run/#respond Sun, 27 Mar 2022 00:03:42 +0000 https://petaminds.com/?p=3693 Functional-style programming is highly advocated and supported by Kotlin’s syntax as well as a range of functions in Kotlin’s standard library. In this post we will examine five Kotlin scoping functions (aka higher-order functions): apply, with, let, also, and run. When learning these five functions, you will need to memorize 2 things: how to use them, and when to […]

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]]> https://petaminds.com/kotlin-scoping-functions-apply-vs-with-let-also-and-run/feed/ 0 Constraints with Android Worker https://petaminds.com/constraints-with-android-worker/ https://petaminds.com/constraints-with-android-worker/#respond Sat, 26 Mar 2022 01:19:11 +0000 https://petaminds.com/?p=3682 Sometimes, we want our app to perform some background tasks under certain conditions, such as Battery level or network etc. With Worker and Constraints, we can conveniently achieve that. The example problem A worker class that prints a message to the console. We want this function doWork executes when the network is available or the […]

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]]> https://petaminds.com/constraints-with-android-worker/feed/ 0 Advanced Keras – Custom loss functions https://petaminds.com/advanced-keras-custom-loss-functions/ https://petaminds.com/advanced-keras-custom-loss-functions/#comments Wed, 23 Mar 2022 00:31:00 +0000 https://petaminds.com/?p=1391 When working on machine learning problems, sometimes you want to construct your own custom loss function(s). This article will introduce abstract Keras backend for that purpose. Keras loss functions From Keras loss documentation, there are several built-in loss functions, e.g. mean_absolute_percentage_error, cosine_proximity, kullback_leibler_divergence etc. When compiling a Keras model, we often pass two parameters, i.e. […]

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]]> https://petaminds.com/advanced-keras-custom-loss-functions/feed/ 5 Celebrating 6k+ Stack overflow https://petaminds.com/celebrating-5k-stack-overflow/ https://petaminds.com/celebrating-5k-stack-overflow/#respond Thu, 17 Mar 2022 21:22:00 +0000 https://petaminds.com/?p=2885 It has been a while since I joined Stack Overflow. As a programmer, I would like to acknowledge the creators and all contributors to the website. It has been an awesome resource for developers and other fields of interest. Stack Overflow is a question-and-answer site for professional and enthusiast programmers. It is a privately-held website, the […]

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]]> https://petaminds.com/celebrating-5k-stack-overflow/feed/ 0 K-Means vs K-Nearest neighbours quick note https://petaminds.com/k-means-vs-k-nearest-neighbours-quick-note/ https://petaminds.com/k-means-vs-k-nearest-neighbours-quick-note/#respond Thu, 13 Jan 2022 02:01:58 +0000 https://petaminds.com/?p=3470 These are completely different methods in machine learning. The fact that they both have the letter K in their name is a coincidence. K-means is a clustering algorithm that tries to partition a set of points into K sets (clusters) such that the points in each cluster tend to be near each other. It is unsupervised […]

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]]> https://petaminds.com/k-means-vs-k-nearest-neighbours-quick-note/feed/ 0 How to Write a Research Question https://petaminds.com/how-to-write-a-research-question/ https://petaminds.com/how-to-write-a-research-question/#respond Tue, 30 Nov 2021 22:13:00 +0000 https://petaminds.com/?p=3583 The research question, if correctly completed, will help you to set out what it is that you want to answer. This can help you make a plan for your research, but might also help you to foresee any potential challenges or problems. This will save you time, energy, and effort. Therefore, it is extremely important […]

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