科学软件资源导航

The Natural Language Toolkit (NLTK) is a Python package for natural language processing. NLTK requires Python 3.5, 3.6, 3.7, or 3.8.

NodeXL makes it easy to explore, analyze and visualize network graphs in Microsoft Office Excel?.NodeXL Pro offers additional features that extend NodeXL Basic providing easy access to social media ne

文献管理软件，知识管理软件及应用系统

Notepad++ is a free (as in “free speech” and also as in “free beer”) source code editor and Notepad replacement that supports several languages. Running in the MS Windows environment, its use is gover

Nutch is a well matured, production ready Web crawler. Nutch 1.x enables fine grained configuration, relying on?Apache Hadoop??data structures, which are great for batch processing.

NVivo is a qualitative data analysis (QDA) computer software package produced by QSR International. NVivo helps qualitative researchers to organize, analyze and find insights in unstructured or qualit

Oracle Database, also known as Oracle RDBMS, or Oracle for short. It is a relational database management system of Oracle.

Origin?is the data analysis and graphing software of choice for over half a million scientists and engineers in commercial industries, academia, and government laboratories worldwide. Origin offers an

Pajek is a program package for analysis and visualization of large networks (networks containing up to one billion of vertices, there is no limit—except the memory size—on the number of lines).

Photoshop mainly deals with digital images composed of pixels. Using its numerous editing and drawing tools, you can effectively edit pictures. ps has many functions, covering various aspects such as