Search results for "reitit"
showing 10 items of 99 documents
Chasing writers’ ghosts through a modern city : Augmenting urban space with literary connections during the Tove Jansson walk in Helsinki
2019
The article employs the theme of a literary walk (Watson 2009), a practice of encountering places with literary associations on foot. Urban areas present especially suitable settings for such themed walks, as cities can have multiple literary connections, and literary places are located within a short distance from one another. In this paper, I focus on the sites associated with Tove Jansson (1914– 2001), a Finnish-Swedish artist and writer, internationally known for her books about the Moomins. The study utilises an autoethnographic approach and draws on observations at the sites with connections to Jansson in Helsinki, organised spatially into a walk around the city. I analyse how urban s…
Potential and challenges in home care service process optimization : a route optimization approach
2016
Aging of the population is an increasing problem in many countries, including Finland, and it poses a challenge to public services such as home care. Vehicle routing optimization (VRP) type optimization solutions are one possible way to decrease the time required for planning home visits and driving to customer addresses, as well as decreasing transportation costs. Although VRP optimization is widely and succesfully applied to commercial and industrial logistics, the home care is a relatively new application area for it. This thesis examines what kind of distance and time savings would be possible to achieve if daily home care operations are optimized in the similar manner as typical VRP op…
Maantieteestä uutta tietoa polkemisen hyvinvointivaikutuksista
2023
Turun ja Porin lääni
1890
Kuopion lääni
1833
On automatic algorithm configuration of vehicle routing problem solvers
2019
Many of the algorithms for solving vehicle routing problems expose parameters that strongly influence the quality of obtained solutions and the performance of the algorithm. Finding good values for these parameters is a tedious task that requires experimentation and experience. Therefore, methods that automate the process of algorithm configuration have received growing attention. In this paper, we present a comprehensive study to critically evaluate and compare the capabilities and suitability of seven state-of-the-art methods in configuring vehicle routing metaheuristics. The configuration target is the solution quality of eight metaheuristics solving two vehicle routing problem variants.…