[I have delivered a talk on this topic in Jan' 2021. You can find that here] The internet of things, digitized health care systems, financial markets, smart cities, all are continuously generating time series data of different types, sizes and complexities. As continuous monitoring & data collection becomes more feasible and popular, the demand for … Continue reading Automatic Feature Engineering on Large Scale Time Series Data using tsfresh & Dask
Beginning of March 2020, I did some reading about COVID-19 and its spread around the world. I am trying to share my learning from that.
[I wrote this blog while learning Statistics at Center For Continued Education, Indian Institute of Science, Bangalore during Q1 2016. That was the first Data Science course which I attended. Although the notes are very naive in nature, I prefer to keep this blog mostly as a memory.] Data which has time as one of … Continue reading My Notes on Time Series
In Wildfly, multiple applications can be deployed together. With the default configuration, there is no control on the maximum number of connections/threads assigned to any particular application. This blog describes configurations needed to restrict maximum number of threads assigned to any application. That way if one of the applications hang (consuming all the threads assigned … Continue reading Wildfly 8.x : Control maximum number of connections (threads) assigned to an application
According to Oxford Dictionaries, the word "popular" means "liked or admired by many people or by a particular person or group". I know folks who code just for their living without any love for it. So, I am not going to use the term "Popularity", but will use the term "Usability" - "Usability Index For … Continue reading Popularity (Usability) Index for Programming Languages
What are the fundamental principles which an API Developer should keep in mind while designing an API
In another post, “Do I Really Need a Singleton?”, I wrote about the problems introduced by the Singleton design pattern. When the single unique instance is being accessed through the getInstance() method, Singleton acts as a global variable in disguise and introduces tight coupling and unwanted dependencies. I have received two immediate questions from my … Continue reading Inject Dependencies – Manually
Recap: Exception Hierarchy In Java In Java, we have three types of Throwables : Error and it’s subclasses Runtime Exception and it’s subclasses And the rest (Non-Runtime Exceptions) Exceptions those lie in the third category are called Checked Exceptions. If a method throws a checked exception, the compiler makes sure that the API user handles … Continue reading Problems with Checked Exception in Java
How to configure and use JMeter for load/traffic testing of Web Applications.
Recently I have published a post on "Static Vs Singleton". While working on the topic, I slipped into another: “Are Singletons really that bad?”. I started reading further. Trust me, it’s a holy war! And here is the result of my investigation. To start with let’s take a look of the definition of the pattern. … Continue reading Do I really need a Singleton?