There are several levels of normalization. A brief description is provided in below: Eliminate Repeating Groups – Make a separate table for each set of related attributes, and give each table a primary key. Eliminate Redundant Data – If an attribute depends on only part of a multi-val……

Data Modeling Tutorial for Beginners The analysis of data objects and their inter-relations is known as data modeling. This process formulates data in a specific and well-configured structure. This well-presented data is further used for analysis and creating reports. What is Data Modeling? Th……

Natural language processing is a massive field of research. With so many areas to explore, it can sometimes be difficult to know where to begin – let alone start searching for data. With this in mind, we’ve combed the web to create the ultimate collection of free online datasets for NLP. Although……

用于机器学习的开放数据集有哪些呢？Lionbridge 团队为高质量的数据集创建了一份最终备忘单。这些高质量的数据集或者涵盖范围广泛（比如 Kaggle），或者非常细化（比如自动驾驶汽车的数据）。 首先，在搜索数据集时要记住几点。Dataquest 是这么说的：      数据集不应脏乱，这样就无需花太多时间来清洗……

Industries and organizations are being greatly transformed by data and analysis. The field of data analytics has seen a massive shift where people are adapting the analytics to suit them rather than adapting their ways to fit in with traditional forms of analysis. The power of data analysis is b……

By Cheng Han Lee There are lots of resources out there to learn about, or to build upon what you already know about, data science. But where do you start? What are some of the best or most authoritative sources? Here are some websites, books, and other resources that we think are outstanding. If ……

The process of creating an application with embedded dashboards, reporting, and analytics capabilities is complex. It doesn’t just stop with taking information and making it available to end users in dashboards and reports. Application users are demanding advanced features that allow them to exami……

The Full-Stack Data Engineering skill-map:

What is Hadoop? Apache Hadoop is an open source software framework used to develop data processing applications which are executed in a distributed computing environment. Applications built using HADOOP are run on large data sets distributed across clusters of commodity computers. Commodity comput……

What is Data Warehouse? A Data Warehouse collects and manages data from varied sources to provide meaningful business insights. It is a collection of data which is separate from the operational systems and supports the decision making of the company. In Data Warehouse data is stored from a histori……