Essays about: "latent dirichlet distribution"

Showing result 1 - 5 of 7 essays containing the words latent dirichlet distribution.

  1. 1. Is there macroeconomic predictive power in Swedish business news?

    University essay from Lunds universitet/Nationalekonomiska institutionen

    Author : Erik Ris; [2021]
    Keywords : Topic modelling; Sentiment Analysis; Newspaper Data; NLP; Lasso Regression; Business and Economics;

    Abstract : This thesis explores if, and how, what is written in the newspaper can be used to forecast macroeconomic variables such as inflation, unemployment and consumption. A large data set consisting of articles from the largest Swedish business newspaper is transformed using different methods from the Natural Language Processing field. READ MORE

  3. 2. Comparing and contrasting the dissemination cascades of different topics in a social network : What are the lifetimes of different topics and how do they spread

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Linus Käll; Simon Pertoft; [2021]
    Keywords : spreading; dissemination; topics; topic; modeling; modelling; lda; fake; false; news; social; network;

    Abstract : The web has granted everyone the opportunity to freely share large amounts of data. Individuals, corporations, and communities have made the web an important tool in their arsenal. These entities are spreading information online, but not all of it is constructive. READ MORE

  4. 3. Investigating topic modeling techniques for historical feature location.

    University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Author : Lukas Schulte; [2021]
    Keywords : feature location; topic modeling; changesets; latent dirichlet distribution; pachinko alloca-tion; mining software repositories; source code comprehension;

    Abstract : Software maintenance and the understanding of where in the source code features are implemented are two strongly coupled tasks that make up a large portion of the effort spent on developing applications. The concept of feature location investigated in this thesis can serve as a supporting factor in those tasks as it facilitates the automation of otherwise manual searches for source code artifacts. READ MORE

  5. 4. Topic modeling on a classical Swedish text corpus of prose fiction : Hyperparameters’ effect on theme composition and identification of writing style

    University essay from Uppsala universitet/Statistiska institutionen

    Author : Catharina Apelthun; [2021]
    Keywords : Topic modeling; Smoothed Latent Dirichlet Allocation; Gibbs sam- pling; MCMC; Bayesian statistics; Swedish prose fiction.;

    Abstract : A topic modeling method, smoothed Latent Dirichlet Allocation (LDA) is applied on a text corpus data of classical Swedish prose fiction. The thesis consists of two parts. READ MORE

  6. 5. Tracking the Time Trends of Swedish Literature and Finding Characteristics of Authors by Using Topic Modelling

    University essay from Uppsala universitet/Institutionen för lingvistik och filologi

    Author : Hikaru Hashimoto; [2020]
    Keywords : Swedish literature; topic modelling; LDA; latent Dirichlet allocation;

    Abstract : In this thesis, we discover the time trends in Swedish literature and characteristics of authors. We apply latent Dirichlet allocation (LDA), a method for topic modelling, to a corpus composed of 118 Swedish books and prose collected in Litteraturbanken. READ MORE