The noticeability of behavioral changes of a conversational agent: An evaluation of an agent-based social skills training system

Helpline counselors can be trained faster using agent-based social skills training systems. These systems utilize conversational agents that simulate interactions with users and provide feedback. This research evaluates the noticeability of behavior changes in such a conversational agent. By examining participants' ability to detect and...

Agent-Based Social Skills Training Systems: A Comprehensive Analysis of Commercial Solutions: What commercially available training systems are out there and how do they model their agents and feedback?

Agent-based social skills training systems have been gaining attention for their potential to improve social skills development in various contexts. Through a rapid review methodology, data was collected from diverse sources, including company websites and research papers. This study then uses the collected data to categorize 8 commercial...

Dealing with conflicting trains: Effectively avoiding and resolving conflicts during shunting

A shunting yard is used to store trains between arrival and departure. A conflict arises in a shunting yard when one train obstructs another from leaving. Resolving a conflict is done by re-allocating the trains obstructing the departing train to other tracks in the shunting yard. However, these re-allocations complicate the problem at hand and...

Comparing planners for rail planning in PDDL: How multiple shunting yard layouts can be created in PDDL to replicate real-world scenarios

This paper explored the usage of the Planning Domain Definition Language in the Train Unit Shunting Problem or TUSP, an NP-hard problem that occurs in train storage. This paper focuses on the evaluation and improvement of existing planners to solve TUSP with multiple shunting yard layouts, as well as an appropriate domain with it. Starting with...

Compressing code generation language models on CPUs: Using Group Lasso pruning and post-training quantization

Code generation models have become more popular recently, due to the fact that they assist developers in writing code in a more productive manner. While these large models deliver impressive performance, they require significant computational resources and memory, making them difficult to deploy and expensive to train. Additionally, their large...

Utilizing General Planners to Solve the Train Unit Shunting Problem Extended with Servicing

When not in use, trains are stored at shunting yards, where they may need servicing. Planning for where the rolling stock should be parked during its stay at the yard is known as the Train Unit Shunting Problem (TUSP) and it is NP-hard. Algorithmic planners can assist with this computationally difficult task by providing a sequence of actions to...

Optimizing the PDDL domain of TUSP to improve planner performance: Modifying the domain to improve planner execution time, plan quality, and problem solvability

It is possible to improve the performance of planners by modifying the PDDL domain of a problem. The goal of this research is to implement this to the domain of the Train Unit Shunting Problem (TUSP). The research question we attempt to answer is: To what extent can we improve planner performance by optimizing the PDDL domain of TUSP? The main...

Max-Plus Extensions: A Study of Train Delays

A study of train delay propagation using max-plus algebra and extensions of the max-plus model.

Control of Delay Propagation in Railway Networks Using Max-Plus Algebra

In this thesis max-plus algebra is introduced and applied to the problem of controlling train delays. Two control strategies for the propagation of delays are discussed. The first is by letting certain trains run faster when a delay is detected, the second is by breaking connections between trains that have to wait for each other in order to...

Het ontbinden van een matrix m.b.v. een getraind neuraal netwerk

Before making matrix calculations, it can be useful to decompose these matrices in some way, such as according to an LU-decomposition. This can save a lot of computing power and thus time. Several computer programs exist that can decompose matrices in multiple ways. However, this report answers the question of whether it is also possible to make...

Public Transport during coronavirus outbreak: A research of measures taken in Dutch and international PT

In 2019 a virus surfaced in China that would later cause a pandemic: the coronavirus. Across the world measures were taken to reduce the spread of the virus. Public Transport (PT) had a unique position, being both an essential service and a place where the virus can easily be spread. This research investigates the measures taken in PT in the...

Analyzing location-specific error patterns in train data

Through the years, companies have been exploring the field of data science. The Nederlandse Spoorwegen (NS) is not an exception to this. Modern trains are equipped with sensors that measure a variety of conditions within the train. This data is being stored in their data warehouse. This data has been proven useful for detection and response...

Using an Agent-Based Formalism to Simulate Passenger Flows

In this report two Agent-Based Models, the Passenger Model and the Transfer Model, will be constructed and analyzed. The objective is to make a realistic model inspired by a cell-based model to simulate passenger flows on a train platform. We will start by studying the cell-based model and we will explain which aspects have been applied to our...

Building flood emergency scenarios in augmented reality

To find out if AR can be used for building flood scenarios in an application that uses optical see-through glasses the problem was first split up into different sub problems: user localisation, world creation and water level tracking. User localisation allows the user to walk around in the scenario. This is done using a combination of marker...

Vantage Practice

In baansporten is de laatste jaren een ontwikkeling gaande om tijdregistratie te digitaliseren door het gebruik van transponders en detectielussen in de baan. Daardoor zijn nieuwe mogelijkheden ontstaan om ook naast het wedstrijdmoment de sportprestaties in te zien. Gedurende dit project is gewerkt aan een applicatie die op een overzichtelijke...

3D Scenario Editor

Het doel van ons bachelorproject was om de mogelijkheden te onderzoeken voor een intuïtieve 3D editor. Deze editor moest de beperkingen van een 2D editor verhelpen. De door ons gevonden oplossing diende te worden ondersteund met een implementatie in EVE, het visualisatieplatform van TNO. Nadat het Plan van Aanpak2 geschreven was zijn we meteen...