Sökning: "Baum-Welch"
Visar resultat 1 - 5 av 8 uppsatser innehållade ordet Baum-Welch.
1. Intrusion Detection in IT Infrastructures using Hidden Markov Models
Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : In the past decades, cloud based services have developed rapidly. And as a result, cybercrimehas increased in sophistication as well as frequency. It therefore becomes vital to have solidprotection against such attacks, especially for infrastructures containing sensitive information. LÄS MER
2. Driving Behavior Prediction by Training a Hidden Markov Model
Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Introducing automated vehicles in to traffic withhuman drivers, human behavior prediction is essential to obtainoperation safety. In this study, a human behavior estimationmodel has been developed. The estimations are based on aHidden Markov Model (HMM) using observations to determinethe driving style of surrounding vehicles. LÄS MER
3. Extrahering av återkommande beteendemotiv från videoinspelningar av naturligt beteende
Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)Sammanfattning : I denna rapport visar vi hur estimering av dolda Markov-modeller kan användas för att konstruera modeller för beteenden hos möss. Vi använde ett neuralt nätverk för att extrahera positionsdata för olika kroppsdelar i videoinspelningar av enskilda möss i en inhängnad. LÄS MER
4. A Multi-Target Graph-Constrained HMM Localisation Approach using Sparse Wi-Fi Sensor Data
Master-uppsats, KTH/Optimeringslära och systemteoriSammanfattning : This thesis explored the possibilities of using a Hidden Markov Model approach for multi-target localisation in an urban environment, with observations generated from Wi-Fi sensors. The area is modelled as a network of nodes and arcs, where the arcs represent sidewalks in the area and constitutes the hidden states in the model. LÄS MER
5. Efficient Risk Factor Allocation with Regime Based Models
Master-uppsats, Lunds universitet/Matematisk statistikSammanfattning : It is widely accepted that nancial mark behaviour is characterized by periodicity. However, in academia and practice financial markets are often modeled as time consistent, resulting in static investment strategies that are assumed to be ecient. LÄS MER