Big data refers to the vast amount of structured and unstructured data that is generated by organizations on a daily basis. This data includes everything from social media posts and customer transactions to sensor data and online interactions. Big data research aims to develop tools and techniques to analyze and process this data in order to extract valuable insights and inform decision-making. This area of research encompasses a wide range of disciplines, including computer science, mathematics, statistics, and data science. Key research topics in big data include data storage and retrieval, data mining, machine learning, and data visualization.