What are different branches of artificial intelligence? Discuss some of the branches and progress made in their fields.

Machine learning: It deals with developing algorithms that can learn from data. ML algorithms are used in various applications, including image recognition, spam filtering, and natural language processing.
For example, to identify a simple object such as an apple or orange.

Deep learning: It is a branch of machine learning that harnesses artificial neural networks to acquire knowledge from data. Deep learning algorithms effectively solve various problems, including NLP, image recognition and speech recognition.

Natural language processing: It deals with the interaction between computers and human language. NLP techniques are used to understand and process human language and in various applications, including machine translation, speech recognition, and text analysis.

Robotics: It is a field of engineering that deals with robot design, construction, and operation. Robots can perform tasks automatically in various industries, including manufacturing, healthcare, and transportation.
For example, car assembly lines, in hospitals, office cleaner, serving 
foods and preparing foods in hotels etc. 

Expert systems: They are computer programs designed to mimic human experts' reasoning and decision-making abilities. Expert systems are used in various applications, including medical diagnosis, financial planning, and customer service.