Essays about: "unsupervised classification"

Showing result 1 - 5 of 54 essays containing the words unsupervised classification.

  1. 1. An application of Bayesian Hidden Markov Models to explore traffic flow conditions in an urban area

    University essay from Uppsala universitet/Statistiska institutionen

    Author : Lovisa Andersson; [2019]
    Keywords : Bayesian statistics; hidden states; Markov chain; traffic flow modeling; filtering; smoothing; most probable state sequence; MCMC; Hamiltonian Monte Carlo; No-U-Turn sampler;

    Abstract : This study employs Bayesian Hidden Markov Models as method to explore vehicle traffic flow conditions in an urban area in Stockholm, based on sensor data from separate road positions. Inter-arrival times are used as the observed sequences. READ MORE

  2. 2. Learning of robot-to-human object handovers

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Simon Simonsson; [2019]
    Keywords : ;

    Abstract : In this thesis we propose a system for robots to learn through a semisupervised approach from observations, proper handover features for objects that can be applied onto new objects. Using recordings of handovers, features are extracted for the purpose of classifying the objects through unsupervised learning. READ MORE

  3. 3. Classification of Wi-Fi Sensor Data for a Smarter City : Probabilistic Classification using Bayesian Statistics

    University essay from Umeå universitet/Institutionen för matematik och matematisk statistik; Umeå universitet/Institutionen för matematik och matematisk statistik

    Author : Elin Tyni; Johanna Wikberg; [2019]
    Keywords : ;

    Abstract : As cities are growing with an increasing number of residents, problems with the traffic such as congestion and larger emission arise. The city planners have challenges with making it as easy as possible for the residents to commute and in as large scale as possible to avoid vehicles. READ MORE

  4. 4. A comparative study of social bot classification techniques

    University essay from Högskolan i Skövde/Institutionen för informationsteknologi; Högskolan i Skövde/Institutionen för informationsteknologi; Högskolan i Skövde/Institutionen för informationsteknologi

    Author : Filip Örnbratt; Jonathan Isaksson; Mario Willing; [2019]
    Keywords : manual bot classification; social bot; metadata; machine learning; supervised learning; unsupervised learning; random forest; k-means;

    Abstract : With social media rising in popularity over the recent years, new so called social bots are infiltrating by spamming and manipulating people all over the world. Many different methods have been presented to solve this problem with varying success. READ MORE

  5. 5. Using unsupervised classification with multiple LDA derived models for text generation based on noisy and sensitive data

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Lucas Ljungberg; [2019]
    Keywords : ;

    Abstract : Creating models to generate contextual responses to input queries is a difficult problem. It is even more difficult when available data contains noise and sensitive data. Finding models or methods to handle such issues is important in order to use data for productive means. READ MORE