What are the skills required for artificial intelligence?

Here you can see the essential skills required for artificial intelligence:

• Natural language processing Libraries (like OpenNLP, Weka), predictive modeling, machine learning libraries (like scikit-learn, Theano), personalization, optimization, data mining, deep learning libraries (like TensorFlow, Caffe), and neural networks.
• Machine learning techniques and algorithms, such as Neural Networks, SVM, k-NN, Naive Bayes, Decision Forests
• Statistical skills such as probability distributions, statistical testing
• Data science toolkits such as R, Python, NumPy, MatLab
• Data visualization tools, such as D3.js, GGplot