Hidden Markov Model
Full Form of HMM
What is HMM?
A Hidden Markov Model (HMM) is a statistical model that represents systems with hidden states, where each state emits observable outputs with certain probabilities. In India, HMMs are extensively used in speech and natural language processing (NLP) applications, such as automatic speech recognition for Indian languages (e.g., Hindi, Tamil, Telugu) and optical character recognition for Devanagari script. They also play a key role in bioinformatics (e.g., gene prediction), financial time-series analysis, and gesture recognition. HMMs are covered in undergraduate and postgraduate curricula of computer science, artificial intelligence, and data science programs across Indian universities, with a strong emphasis during placement training for roles in NLP and AI. They are commonly taught as part of machine learning courses in institutes like IITs, NITs, and IISc. In Indian competitive exams like GATE (CS/IT) and UGC-NET, questions on HMMs often appear under the 'Machine Learning' or 'Natural Language Processing' sections, making them essential for aspirants. HMMs are also relevant for industry jobs in companies like Microsoft, Google, and Indian AI startups that work on voice assistants, text-to-speech systems, and language translation tools.
HMM का फुल फॉर्म
हिडन मार्कोव मॉडल
Example
In the final year project, the team implemented an HMM-based speech recognizer for Marathi words, achieving 85% accuracy on noisy audio samples.