Essays about: "text mining"

Showing result 1 - 5 of 53 essays containing the words text mining.

  1. 1. Measuring the information content of Riksbank meeting minutes

    University essay from Umeå universitet/Institutionen för fysik

    Author : Sofia Fröjd; [2019]
    Keywords : Latent Dirichlet Allocation; Natual Language Processing; Central Bank communication; Hawk-o-meter; Riksbank;

    Abstract : As the amount of information available on the internet has increased sharply in the last years, methods for measuring and comparing text-based information is gaining popularity on financial markets. Text mining and natural language processing has become an important tool for classifying large collections of texts or documents. READ MORE

  2. 2. THEGOVERNORS ANDTHE GOVERNMENT. A lexical analysis of national and local manifestos in Japan

    University essay from Göteborgs universitet/Institutionen för språk och litteraturer

    Author : Julia Olsson; [2018-01-19]
    Keywords : japanska; Japanese politics; ; Japanese Governors; Japanese political language; Japanese manifestos; Japanese local politics;

    Abstract : The aim of this study was to examine whether the linguistic characteristics in the local policy statements (知事の所信表明 chijinoshoshinhyoumei)reflect those of national manifesto(綱 領 kouryou)characteristics. The basic theory behind the present thesis is lexical analysis and text mining such as proposed by Hanks (2013), and vocabulary and script analysis in reference to Yamaguchi (2007). READ MORE

  3. 3. Detecting Fake Reviews with Machine Learning

    University essay from Högskolan Dalarna/Mikrodataanalys

    Author : Marina Ferreira Uchoa; [2018]
    Keywords : Text mining; review spam; fake review; deceptive review;

    Abstract : Many individuals and businesses make decisions based on freely and easily accessible online reviews. This provides incentives for the dissemination of fake reviews, which aim to deceive the reader into having undeserved positive or negative opinions about an establishment or service. READ MORE

  4. 4. Categorizing drugs and explicit Websites using text mining : Text Based Categorization

    University essay from Högskolan i Halmstad; Högskolan i Halmstad

    Author : Saharsha Reddy Pala; Patanjali Chintalapati; [2018]
    Keywords : Drugs; explicit content; machine learning; website categorization; text mining.;

    Abstract : This report is a result of master thesis in network forensics at Halmstad University during spring term 2018. The focal point of the thesis was to analyse, categorize the websites into few categories i.e., drugs, explicit content and others based on text mining. READ MORE

  5. 5. Text feature mining using pre-trained word embeddings

    University essay from KTH/Matematisk statistik

    Author : Henrik Sjökvist; [2018]
    Keywords : Word embeddings; Feature engineering; Unsupervised learning; Deep learning; fast Text; Operational risk; Ordvektorer; Attributgenerering; Oövervakat lärande; Djupinlärning; fastText; Operativ risk;

    Abstract : This thesis explores a machine learning task where the data contains not only numerical features but also free-text features. In order to employ a supervised classifier and make predictions, the free-text features must be converted into numerical features.  In this thesis, an algorithm is developed to perform that conversion. READ MORE