Explore NLP techniques using Node.js and JavaScript to construct Conversational Artificial Intelligence.You'll delve into natural language understanding, crafting classifiers with diverse technologies, and evaluating their efficacy.Additionally, grasp Named Entity Recognition to extract entities from user sentences, enriching NLU. Understand Natural Language Generation to aptly generate responses for Conversational AI, incorporating context variables for a personalized user experience. Learn essential algorithms like N-grams and their application in tasks such as language detection and word prediction.Finally, construct a multilingual chatbot in English and Spanish, capable of language detection, employing the learned Conversational AI techniques.