Search results for "järjestelmät"

Mitigating forest biodiversity and ecosystem service losses in the era of bio-based economy

2018

Abstract Forests play a crucial role in the transition towards a bioeconomy by providing biomass to substitute for fossil-based materials and energy. However, a policy-policy conflict exists between the desire to increase the utilization of bio based renewable resources and the desire to protect and conserve biodiversity. Increasing forest harvest levels to meet the needs of the bioeconomy may conflict with biodiversity protection and ecosystem services provided by forests. Through an optimization framework, we examined trade-offs between increasing the extraction of timber resources, and the impacts on biodiversity and non-wood ecosystem services, and investigated possibilities to reconcil…

Predictive pumping based on sensor data and weather forecast

2019

In energy production, peat extraction has a significant role in Finland. However, protection of nature has become more and more important globally. How do we solve this conflict of interests respecting both views? In peat production, one important phase is to drain peat bog so that peat production becomes available. This means that we have control over how we can lead water away from peat bog to nature without water contamination with solid and other harmful substances. In this paper we describe a novel method how fouling of water bodies from peat bog can be controlled more efficiently by using weather forecast to predict rainfall and thus, minimize the effluents to nature. peerReviewed

Patented intelligence: Cloning human decision models for Industry 4.0

2018

Industry 4.0 is a trend related to smart factories, which are cyber-physical spaces populated and controlled by the collective intelligence for the autonomous and highly flexible manufacturing purposes. Artificial Intelligence (AI) embedded into various planning, production, and management processes in Industry 4.0 must take the initiative and responsibility for making necessary real-time decisions in many cases. In this paper, we suggest the Pi-Mind technology as a compromise between completely human-expert-driven decision-making and AI-driven decision-making. Pi-Mind enables capturing, cloning and patenting essential parameters of the decision models from a particular human expert making …

Evaluation Framework for Analyzing the Applicability of Criteria Lists for the Selection of Requirements Management Tools Supporting Distributed Coll…

2016

Effective requirements management and enabling tools are critical for successfully developing and maintaining services and products. The identification and selection of an appropriate requirements management tool can be a costly, time-consuming, and error-prone undertaking especially in the context of software product line requirements management, requiring the tools to support both product and platform development activities that often involve geographically distributed, collaborating, and competing stakeholders. Criteria lists have been developed to facilitate the selection. This research (1) creates an evaluation framework to review the applicability of the lists for the selection of req…

Comparing interactive evolutionary multiobjective optimization methods with an artificial decision maker

2021

AbstractSolving multiobjective optimization problems with interactive methods enables a decision maker with domain expertise to direct the search for the most preferred trade-offs with preference information and learn about the problem. There are different interactive methods, and it is important to compare them and find the best-suited one for solving the problem in question. Comparisons with real decision makers are expensive, and artificial decision makers (ADMs) have been proposed to simulate humans in basic testing before involving real decision makers. Existing ADMs only consider one type of preference information. In this paper, we propose ADM-II, which is tailored to assess several …

An Interactive Framework for Offline Data-Driven Multiobjective Optimization

2020

We propose a framework for solving offline data-driven multiobjective optimization problems in an interactive manner. No new data becomes available when solving offline problems. We fit surrogate models to the data to enable optimization, which introduces uncertainty. The framework incorporates preference information from a decision maker in two aspects to direct the solution process. Firstly, the decision maker can guide the optimization by providing preferences for objectives. Secondly, the framework features a novel technique for the decision maker to also express preferences related to maximum acceptable uncertainty in the solutions as preferred ranges of uncertainty. In this way, the d…

A New Paradigm in Interactive Evolutionary Multiobjective Optimization

2020

Over the years, scalarization functions have been used to solve multiobjective optimization problems by converting them to one or more single objective optimization problem(s). This study proposes a novel idea of solving multiobjective optimization problems in an interactive manner by using multiple scalarization functions to map vectors in the objective space to a new, so-called preference incorporated space (PIS). In this way, the original problem is converted into a new multiobjective optimization problem with typically fewer objectives in the PIS. This mapping enables a modular incorporation of decision maker’s preferences to convert any evolutionary algorithm to an interactive one, whe…

Rappiota rajan takaa : turismi Neuvostoliiton ja Suomen välillä 1956 - 1991

2013

Tutkimus käsittelee Suomen ja Neuvostoliiton välistä turistimatkailua. Suomi oli neuvostoliittolaisille tärkein turistikohde kapitalististen maiden joukossa ja neuvostoliittolaiset olivat yksi suurimmista matkustajaryhmistä Suomeen kylmän sodan ajanjaksolla. Suomalaiset turistit taas olivat merkittävä matkustajaryhmä Neuvostoliitolle ja varsinkin Itämeren kaupungeille Tallinnalle ja Leningradille. Tutkimuksessa selvitetään neuvostoliittolaisten turistien matkojen sisältöä Suomessa sekä sitä, kuinka Neuvostoliitto valmisti kansalaisiaan kohtaamaan ulkomaalaiset ja kapitalistinen järjestelmä. Tutkimuksessa tarkastellaan suomalaisten ja neuvostoliittolaisten kohtaamisia Suomen maaperällä. Suom…

Avaimet osaamiseen ja tulevaisuuteen : selvitys maahanmuuttajataustaisten nuorten osaamisesta ja siihen liittyvistä taustatekijöistä PISA 2012 -tutki…

2014

Yield measurements at IGISOL with a digital data acquisition system

2017

A new digital data acquisition system has been installed at the IGISOL facility at the department of Physics in University of Jyväskylä in November, 2016. The technical details of the hardware and software of this new system are presented in this thesis. Nutaq VHS-ADC digital data acquisition system includes an analogue to digital converter (ADC) crate board, an offset unit box, an acquisition host PC, and a storage drive. This system consists of 8 channels, has the capability of 105 MSPS with 14-bit ADCs on 6U cPCI (PXI compatible). Radioactive sources, beta-gamma matrix, gamma-gamma matrix, beta-delayed gamma, and gamma-delayed gamma spectra of radioactive isotopes produced at IGISOL were…