caption: Language Model A topic in a document or query can be represented as a language model.
exif: {"Image DocumentName": "Language Model A topic in a document or query can be represented as a language model.", "Image ImageDescription": "i.e., words that tend to occur often when discussing a topic will have high probabilities in the corresponding language model. Multinomial distribution over words. Text is modeled as a finite sequence of words, where there are t possible words at each point in the sequence. Commonly used, but not only possibility. Doesn\u2019t model burstiness, i.e., a word retrieved once is often repeated.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}