Zookeeper Security
The metadata stored in ZooKeeper is such that only brokers will be able to modify the corresponding znodes, but znodes are world readable. The rationale beh...
Posts by Category
- Big Data 11
- Linear Algebra 7
- Applied Machine Learning 3
- Remote Sensing and Satellite Image Processing 3
- Python 2
- NLP 2
- Cassandra 2
- Data Modeling Cassandra (NOSQL) 1
- 3D-Vision 1
- Generative Deep Learning 1
Big Data
SSL Encryption
Encryption solves the problem of the man in the middle (MITM) attack. That’s because your packets, while being routed to your destination, travel your networ...
Apache Kafka Security
Apache Kafka is an internal middle layer enabling your back-end systems to share real-time data feeds with each other through Kafka topics. With a standard ...
SASL and GSSAPI
SASL and GSSAPI SASL and GSSAPI are frameworks that various authentication providers can be plugged into. People wishing to use Kerberos authentication in a...
Introduction to Logstash and Filebeat
Introduction to Logstash and Filebeat Filebeat FileBeat is basically a data-shipper that belongs to the Beats family. We can install this shipper on server...
Kafka Server
Kafka Server Security Configuring Kafka Brokers Kafka Brokers support listening for connections on multiple ports. We need to configure listeners and optio...
Kafka Schema Registry
Kafka Schema Registry Security Schema Registry provides a serving layer for your metadata. It provides a RESTful interface for storing and retrieving Avro s...
Kafka Rest Proxy
Kafka Rest Proxy Security The Kafka REST Proxy provides a RESTful interface to a Kafka cluster. It makes it easy to produce and consume messages, view the s...
Kafka KSQL
Kafka KSQL Security Kafka enables companies to transform their business with event-driven architectures. They can deploy real-time data pipelines that organ...
Kafka Connect
Kafka Connect Security Kafka Connect is a tool for scalably and reliably streaming data between Apache Kafka and other data systems. It makes it simple to q...
Kafka clients
Kafka clients The configs for SSL will be the same for both producer and consumer. Create Keytabs for Kafka Client Refer SASL_Kerberos for more details. ...
Linear Algebra
Eigen Values and Eigen Vectors
In this post we will dive into what are eigenvalues and eigen vectors, diagonalization of a matrix, symmetric matrices, system of differential equations and ...
Determinants
This post will briefly walk you through the determinants, its properties, Cramer’s rule and some applications of determinants.
Orthogonal matrices and Gram-Schmidt
This post introduces about projection, orthogonal vectors, orthogonal matrices and Gram-Schmidt orthogonalization process.
Four Fundamental subspaces
This post covers linear independence, span, basis, dimension and four subspaces: Row space, Column space, Null space and Left null space.
Vector Spaces and Subspaces
This post covers vector spaces, subspaces and then provides some understanding on pivot columns, free columns and rank and finally finds a complete solution ...
Solving Linear Equations
2.3 Elimination using matrices In linear algebra, systems of linear equations are viewed as matrix-vector operations. Elimination is a method of solving sys...
Introduction to Vectors
1.1 Linear combination Vectors A vector is an object that has both a magnitude and a direction. But for our purpose, consider vectors as groups of numbers. ...
Applied Machine Learning
Semantic Segmentation using U-Net
U-Net U-Net is a U-shaped encoder-decoder network architecture, which consists of four encoder blocks and four decoder blocks that are connected via bridge...
Training YoloV2 in Custom Dataset
Without sounding too smart as if to describe everything of YOLO artitecture here, in this article I would rather show you a lame approach of plugging the cus...
Image Texture Segmentation Using Gabor Filter
Gabor Filters are known best to depict the mammalian multi-channel approach of vision for interpreting and segmenting textures. This article shows an impleme...
Remote Sensing and Satellite Image Processing
Ramer–Douglas–Peucker algorithm
The Problem When we were working on a satellite image of one of the local area of Nepal, we had to simplify the obtained mask to feed into the GIS system. I...
Satellite Image Analysis
Interpretation and analysis of remote sensing imagery involves the identification and/or measurement of varied targets in an image so as to extract useful in...
Introduction to Remote Sensing
Remote sensing Remote sensing is the science (and to some extent, art) of acquiring information about the Earth’s surface without actually being in conta...
Python
Using Pm2 To Serve Python Application
PM2 is a production process manager for Node.js applications with a built-in load balancer. It allows you to keep applications alive forever, to reload them ...
Using Sphinx To Generate Documentation From Python DocStrig
Sphinx is python recommended tool for generating documentation for python projects, it can generate the documentation of the project in various popular form...
NLP
XL-Net: Generalized Autoregressive Pre training for Language Understanding
Introduction Outperforming the state-of-the-art BERT algorithm on 20 Natural Language Processing(NLP) benchmark tasks, XL-Net is a recent advancement in the...
BERT (Bidirectional Encoder Representation From Transformers)
Introduction 2018 was a breakthrough year in NLP, Transfer learning, particularly models like Allen AI’s ELMO, OPENAI’s transformer, and Google BERT was int...
Cassandra
Replication & Consistency in Cassandra
Before we start with the consistency, replication and read-write operation in Cassandra, let’s first familiarize ourselves with what Cassandra is and its arc...
Setting Up Cassandra
Before we dive into the installation of Cassandra, let’s first familiarize ourselves with what Cassandra is and its architecture. What is Cassandra? Cassand...
Data Modeling Cassandra (NOSQL)
Cassandra Data modeling
Before we start with our modeling, we must first educate ourselves with at least the rudimentary knowledge of Cassandra’s Architecture. Don’t worry we’re not...
3D-Vision
How does volumetric integration work?
Volumetric Integration is one of the well-known and established algorithms in surface reconstruction. The long-term success of this method can be attributed ...
Generative Deep Learning
Introduction to Autoencoder
Autoencoder Difference between generative and discriminative modelling Generative modelling Generative modelling is a statistical modeling technique that ...