Search results for "Making"
showing 10 items of 1218 documents
Desirable properties of performance indicators for assessing interactive evolutionary multiobjective optimization methods
2022
Interactive methods support decision makers in finding the most preferred solution in multiobjective optimization problems. They iteratively incorporate the decision maker's preference information to find the best balance among conflicting objectives. Several interactive methods have been developed in the literature. However, choosing the most suitable interactive method for a given problem can prove challenging and appropriate indicators are needed to compare interactive methods. Some indicators exist for a priori methods, where preferences are provided at the beginning of the solution process. We present some numerical experiments that illustrate why these indicators are not suitable for …
Towards constructing a Pareto front approximation for use in interactive forest management planning
2013
The selection of an appropriate multi-objective forest management plan can be a difficult task due to the vast number of alternatives available to the decision maker (DM). The complexity of the task depends e.g. on how clear the preferences of the DM are. For those DMs who do not have clear preferences, interactive methods of forest planning could assist in clarifying preferences and guiding the selection in an efficient fashion. Interactive planning methods are useful when the DM needs to consider a wide range of efficient solutions quickly. With large forest holdings or with complicated forest management goals, the development of new forest plans can become a rather computationally demand…
Understanding Consumers’ Convenience Orientation. An Exploratory Study of Fresh-Cut Fruit in Italy
2021
In Western society, the fresh-cut fruit market is experiencing significant growth, especially in Italy, where, in 2019, the fresh-cut fruit sales volume increased by 35% compared with the previous year. This study aims to understand Italian consumers&rsquo
Exploring grade 9 students' assumption making when mathematizing
2015
International audience; Making assumptions is a key activity in modelling. The present study aims to explore the variety of assumptions that lower secondary students make in this process. As theoretical basis for the data analysis, we used the modelling cycle by Blum and Leiss (2007) and framed a definition of assumptions. The study was carried out with grade 9 students. The results show three categories of assumptions: (1) parameter assumptions, (2) assumptions for the choice of the mathematical model, and (3) assumptions about task expectations. Assumptions from the first two categories assist students to use extra-mathematical knowledge to construct a mathematical model, while the third …
Comparison of decision variants with reference set (BIPOLAR method) in selection process of suppliers
2018
Bipolar is one of the Multiple Criteria Decision Analysis (MCDA) methods, proposed by Ewa Konarzewska-Gubała [6, 7, 8]. The essence of the analysis in the BIPOLAR method consists in a fact that alternatives are not compared directly to each other, but they are confronted to the two sets of reference objects: good and bad. Some alternatives can be evaluated as over good, i.e. better than at least one of desirable reference object or underbid, i.e. worse than at least of one nonacceptable object. Proposed method takes into account all stages of the decision-making process, starting with the selection of criteria and determining their weights, by modelling the preferences of decision-makers, o…
A multi-objective and multi-criteria approach for district metered area design: water operation and quality analysis
2019
Water distribution network (WDN) operation may be improved by district metered area (DMA) design [1]. A first step to create DMAs uses graph theory and non-supervised learning, where physical features of the WDN, such as node coordinates, elevation and demand, are used for clustering purposes [2]. A second step is related to the necessary isolation of the clustered elements. For isolation purposes, it is important to determine the DMA entrances and, consequently, the needed cut-off valves. Closure of pipes and definition of DMA entrances can be set as an optimization problem with the costs associated to the valves, which are linked to pipe diameters, as a primary objective. However, placeme…
"What is the color of English?" : representation of English in the language portraits of Sámi children
2010
Tutkimus on osa Jyväskylän yliopiston kielten laitoksen Pohjoinen monikielisyys - hanketta, jonka tavoitteena on tutkia monikielisyyttä Pohjoiskalotin alueella. Projektissa hyödynnetään sosiolingvistiikkaa, kriittistä diskurs-sintutkimusta ja etnografiaa. Tässä tutkimuksessa esiin nousevat mm. kielentäminen, heteroglossia ja kieli-politiikka. Lähtökohtana ovat henkilökohtaiset kielikokemukset, resurssit ja repertuaarit, ja niiden tutkiminen multimodaalisen aineiston avulla. Erityisen kiinnostuksen kohteena on yksittäisen kielen, englannin, esiin-tyminen aineistossa. Vastaavaa näkökulmaa samantyyppiseen aineistoon ei ole aiemmin hyödynnetty. Tutkimuksen aineisto koostuu neljäntoista 6-12 vuo…
The Influence of Hedonic and Utilitarian Motivators on Likelihood to Buy a Tourism Package
2013
To fully understand the pattern of choice, it is important that any explanation of consumer behavior to be accompanied by a complete understanding of the interplay between a consumer’s functional goals and experiential preferences within the decision context. Consumer researchers have increasingly begun to investigate consumer choice based on distinctions that involve the purchase and consumption of goods for pleasure versus for more utilitarian and instrumental purposes. Consumers are often faced with these types of choices between hedonic and utilitarian alternatives that are at least partly driven by emotional desires rather than cold cognitive deliberations. This research approaches fac…