Speech recognition method and device based on hot word graph, equipment and storage medium

The invention relates to an artificial intelligence technology, and discloses a speech recognition method and device based on a hot word graph, equipment and a storage medium, and the method comprises the steps: obtaining speech data; performing feature extraction on the voice data to obtain acoustic features; inputting the acoustic features into an ASR model in a framing manner for identification processing, and obtaining a plurality of candidate words and corresponding acoustic probabilities thereof; performing beam search on the candidate words corresponding to each frame and the acoustic probabilities thereof to obtain a preset number of statement combinations and corresponding acoustic scores thereof, and obtaining corresponding hot word scores from a hot word graph based on the statement combinations, the hot word graph being constructed based on a preset hot word list and a voice near confusion set; and determining an identification result based on the acoustic score and the hot word score. According t