Essays about: "Latent Semantic Analysis"

Showing result 1 - 5 of 11 essays containing the words Latent Semantic Analysis.

  1. 1. Text mining Twitter social media for Covid-19 : Comparing latent semantic analysis and latent Dirichlet allocation

    University essay from Högskolan i Gävle/Avdelningen för datavetenskap och samhällsbyggnad

    Author : Hassan Sheikha; [2020]
    Keywords : Data mining; Text mining; artificial intelligence; Natural language processing; Latent Semantic Analysis; Latent Dirichlet Allocation; KMeans; HDBSCAN; Dimension reduction;

    Abstract : In this thesis, the Twitter social media is data mined for information about the covid-19 outbreak during the month of March, starting from the 3’rd and ending on the 31’st. 100,000 tweets were collected from Harvard’s opensource data and recreated using Hydrate. READ MORE

  2. 2. Recommender System for Gym Customers

    University essay from Linköpings universitet/Statistik och maskininlärning

    Author : Roshni Sundaramurthy; [2020]
    Keywords : Recommender system; collaborative filtering; matrix factorization; sparse matrix; latent semantic analysis; singular value decomposition; alternating least square; Bayesian personalized ranking; logistic matrix factorization; stochastic gradient descent; AUC metric; mean average precision; normalized discounted cumulative gain; Rekommendationssystem;

    Abstract : Recommender systems provide new opportunities for retrieving personalized information on the Internet. Due to the availability of big data, the fitness industries are now focusing on building an efficient recommender system for their end-users. This thesis investigates the possibilities of building an efficient recommender system for gym users. READ MORE

  3. 3. How to Leverage Text Data in a Decision Support System? : A Solution Based on Machine Learning and Qualitative Analysis Methods

    University essay from Umeå universitet/Institutionen för informatik

    Author : Shuren Yu; [2019]
    Keywords : DSS; Big Data; Machine Learning; Perplexity; Innovation;

    Abstract : In the big data context, the growing volume of textual data presents challenges for traditional structured data-based decision support systems (DSS). DSS based on structured data is difficult to process the semantic information of text data. READ MORE

  4. 4. Analysis of similarity and differences between articles using semantics

    University essay from Mälardalens högskola/Akademin för innovation, design och teknik

    Author : Ahmed Bihi; [2017]
    Keywords : Natural language processing; similarity; semantic analysis; computer science;

    Abstract : Adding semantic analysis in the process of comparing news articles enables a deeper level of analysis than traditional keyword matching. In this bachelor’s thesis, we have compared, implemented, and evaluated three commonly used approaches for document-level similarity. READ MORE

  5. 5. Investigating the Correlation Between Marketing Emails and Receivers Using Unsupervised Machine Learning on Limited Data : A comprehensive study using state of the art methods for text clustering and natural language processing

    University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)

    Author : Christoffer Pettersson; [2016]
    Keywords : Machine learning; Unsupervised; Natural language processing; nlp; clustering; centroid based; k-means; text clustering; limited data; email clustering; lsa; svd; tf-idf; dimensionality reduction; the gap statistic; Lloyd s algorithm; vectorization; feature extraction;

    Abstract : The goal of this project is to investigate any correlation between marketing emails and their receivers using machine learning and only a limited amount of initial data. The data consists of roughly 1200 emails and 98.000 receivers of these. Initially, the emails are grouped together based on their content using text clustering. READ MORE