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Topic model. In statistics and natural language processing, a topic model is a type of statistical model for discovering the abstract "topics" that occur in a collection of documents. Topic modeling is a frequently used text-mining tool for discovery of hidden semantic structures in a text body. Intuitively, given that a document is about a ...
In natural language processing, latent Dirichlet allocation ( LDA) is a Bayesian network (and, therefore, a generative statistical model) for modeling automatically extracted topics in textual corpora. The LDA is an example of a Bayesian topic model. In this, observations (e.g., words) are collected into documents, and each word's presence is ...
Hot Topic, Inc. (stylized as HOT TOPIC) is an American fast-fashion company specializing in counterculture-related clothing and accessories, as well as licensed music. The stores are aimed towards an audience interested in rock music and video gaming , and most of their audience ranges from teens to young adults.
Financial market participants. High-frequency trading ( HFT) is a type of algorithmic trading in finance characterized by high speeds, high turnover rates, and high order-to-trade ratios that leverages high-frequency financial data and electronic trading tools. [ 1][ 2][ 3] While there is no single definition of HFT, among its key attributes ...
2024 Kiteezi landslide. The death toll from a landslide at the Kiteezi Rubbish Dump in Kampala, Uganda, increases to 21. (Reuters) Two people are killed and twelve families are displaced in an explosion possibly attributed to a gas leak in Bel Air, Maryland, United States. (AP) International relations.
Over the past 12 months, Hot Topic generated $16.8 million cash while it booked net income of $19.5 million. That means it turned 2.3% of its revenue into FCF. That doesn't sound so great.
In the original paper, a dynamic topic model is applied to the corpus of Science articles published between 1881 and 1999 aiming to show that this method can be used to analyze the trends of word usage inside topics. [1] The authors also show that the model trained with past documents is able to fit documents of an incoming year better than LDA.
AI. News coverage on artificial intelligence and machine learning tech, the companies building them, and the ethical issues AI raises today. This encompasses generative AI, including large ...