ExcelR Kolkata

  As the volume of data grows exponentially, big data technologies have evolved to keep up with the demands of fast, efficient data processing. One of the key challenges in big data analytics is optimising storage formats to improve query performance. In the Hadoop ecosystem, Apache Parquet , a popular columnar storage format, has emerged as a game-changer for performance-oriented data analytics. This blog will explore the benefits of columnar storage in Hadoop and explain how Apache Parquet enhances query performance, particularly in the context of data science applications. What is Columnar Storage? Columnar storage is a method of storing data tables by columns rather than rows. Unlike traditional row-based storage, which saves entire rows of data together, columnar storage saves data from each column sequentially. This structure makes it ideal for analytical queries that access a subset of columns across many rows. When running queries that only need a few columns, columnar stor...

For any business, mapping the customer journey and pinpointing the exact stages where prospects disengage is essential to driving growth. This is where funnel drop-off analysis comes into play. By visualising the different stages of a process (such as website visit, product selection, checkout initiation, and purchase) and mapping the flow of users through them, we can pinpoint areas that need improvement. This article examines how Sankey and bar charts can be utilized for effective funnel drop-off analysis, offering actionable insights to enhance conversion rates. Imagine a marketing campaign designed to generate leads. A traditional approach might only focus on the total number of leads generated. However, funnel drop-off analysis dives deeper, revealing where those leads are getting lost. Are they abandoning the landing page? Are they having trouble with the sign-up form? Identifying these bottlenecks allows for targeted interventions. The Power of Visualisation: Sankey Charts vs. B...

  In today’s fast-evolving digital economy, data has become a core asset for decision-making and strategy. With companies leveraging data to drive growth, the demand for skilled data scientists is skyrocketing—especially in emerging tech hubs like Coimbatore. For residents and students in this industrious Tamil Nadu city, pursuing a career in data science is both timely and rewarding. However, transitioning into this domain requires a solid technical foundation, strategic planning, and access to the right educational resources. This blog outlines a clear, structured roadmap to help aspiring professionals navigate their journey toward becoming successful using data science course in Coimbatore . 1. Understand What Data Science Really Is Before diving into courses and tools, it’s essential to grasp what data science entails. At its core, data science combines statistical analysis, computer programming, and domain knowledge to extract insights from structured and unstructured data. Da...

Gujarat, often hailed as India’s pharmaceutical capital, is home to some of the country’s largest drug manufacturers, research centers, and biotech parks. From formulation development to large-scale drug production, Gujarat’s pharmaceutical industry is a crucial contributor to both the national economy and global healthcare supply chains. As the sector scales and faces increasing pressure for efficiency, quality, and compliance, real-time analytics is emerging as a transformative tool for process optimization. Real-time data analytics is helping pharmaceutical companies in Gujarat make faster, data-driven decisions across production, supply chain, and quality control processes. For aspiring professionals aiming to contribute to this high-impact industry, enrolling in a data scientist course in Ahmedabad offers a direct route to acquiring the relevant skills and entering the fast-evolving pharma tech space. In this blog, we’ll explore how real-time analytics is optimizing pharma operat...

In recent years, Coimbatore has emerged as a thriving hub for technology and education in South India. With the growing demand for data-driven decision-making across industries, many aspiring professionals are turning towards careers in data science. If you're considering a data scientist course in Coimbatore , it’s important to know what to expect in terms of the curriculum, tools taught, and the career outcomes it can enable. This blog explores the key components of such a course and how it equips learners to thrive in the world of data science. Foundational Skills Every Learner Must Acquire A good data scientist course begins by establishing a strong foundation in core concepts. Before diving into complex algorithms, learners are introduced to essential topics such as: Mathematics and Statistics : Understanding statistical methods, probability theory, linear algebra, and calculus is crucial, as these form the backbone of most data science models. Programming Basics : Python is u...