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showing 10 items of 4384 documents
Domain Specific Case Tool for ICT-Enabled Service Design
2014
One major problem in service design is the limited availability of information gathered during the development process. In particular, information on end-user requirements is difficult for designers, developers, and maintainers to access. Here, we provide a mechanism that supports the gathering and modeling of various types of information throughout the service and software development life cycle. As various existing tools focus on a particular part of the life cycle, essential information is not available, or it is more difficult to obtain in later stages. The linkage between information collected in the different stages is often lost. The implemented tool support enables the modeling of r…
LOCAL CONTROL OF SOUND IN STOCHASTIC DOMAINS BASED ON FINITE ELEMENT MODELS
2011
A numerical method for optimizing the local control of sound in a stochastic domain is developed. A three-dimensional enclosed acoustic space, for example, a cabin with acoustic actuators in given locations is modeled using the finite element method in the frequency domain. The optimal local noise control signals minimizing the least square of the pressure field in the silent region are given by the solution of a quadratic optimization problem. The developed method computes a robust local noise control in the presence of randomly varying parameters such as variations in the acoustic space. Numerical examples consider the noise experienced by a vehicle driver with a varying posture. In a mod…
Convolutional neural networks in skin cancer detection using spatial and spectral domain
2019
Skin cancers are world wide deathly health problem, where significant life and cost savings could be achieved if detection of cancer can be done in early phase. Hypespectral imaging is prominent tool for non-invasive screening. In this study we compare how use of both spectral and spatial domain increase classification performance of convolutional neural networks. We compare five different neural network architectures for real patient data. Our models gain same or slightly better positive predictive value as clinicians. Towards more general and reliable model more data is needed and collection of training data should be systematic. peerReviewed
Efficient Time Integration of Maxwell's Equations with Generalized Finite Differences
2015
We consider the computationally efficient time integration of Maxwell’s equations using discrete exterior calculus (DEC) as the computational framework. With the theory of DEC, we associate the degrees of freedom of the electric and magnetic fields with primal and dual mesh structures, respectively. We concentrate on mesh constructions that imitate the geometry of the close packing in crystal lattices that is typical of elemental metals and intermetallic compounds. This class of computational grids has not been used previously in electromagnetics. For the simulation of wave propagation driven by time-harmonic source terms, we provide an optimized Hodge operator and a novel time discretizati…
The influence of dataset size on the performance of cell outage detection approach in LTE-A networks
2015
The configuration and maintenance of constantly evolving mobile cellular networks are getting more and more complex and hence expensive. Self-Organizing Networks (SON) concept is an umbrella term for the set of automated solutions for network operations proposed by 3rd Generation Partnership Project (3GPP) group. Automated cell outage detection is one of the components of SON functionality. In early studies our research group developed data-driven approach for the detection of malfunctioning cells. In this paper we investigate the performance of the proposed solution as a function of the density of active users and the size of observation interval. The evaluation is conducted in Long Term E…
End-users Co-create Shared Information for a More Complete Real-time Maritime Picture
2017
European Union Member States are working towards an integrated maritime surveillance and deeper information sharing and implementation of Common Information Sharing Environment. Value networks aiming at co-creation, need active facilitation, and relevant platforms for open cooperation. This study analysed scenario analytics, and narrative documents from projects CoopP, CISE, and MARISA by using a Data Extraction Table to classify both objects and phenomenon relevant to European maritime information sharing systems. The object and phenomenon rows are grouped under a European Coast Guard Functions, CGFs framework, to better understand their occurrence and interdependencies. This paper finds t…
Strengthening Institutional Isomorphism in Development NGOs? Program Mechanisms in an Organizational Intervention
2017
Nongovernmental organizations (NGOs) in international development struggle between being actors in the mainstream or representatives of alternatives to it. However, many NGOs all over the world align with the mainstream and are increasingly similar to each other. This homogenization results from institutional isomorphism, which is affected by their aspirations to be legitimate vis-á-vis the international field. Consultancies are among the main practices to promote normative isomorphism, but little is known about their micro-level dynamics. Drawing on the notion of program mechanisms in realistic evaluation, we scrutinize how external facilitators in organizational development processes enab…
Taikuus, noituus ja kansanusko Ylä-Satakunnassa 1623-1750
2015
Tutkielma käsittelee taikuuden- ja noituudenharjoittamista Ylä-Satakunnassa 1600-luvulla sekä 1700-luvun ensimmäisellä puoliskolla. Ylä-Satakunnan osalta näin kattavaa tutkimusta ei taikuudesta ja noituudesta ole aiemmin tehty. Vaikka alkuperäisaineisto muodostuu oikeuden pöytäkirjoista, tutkielmassa tarkastellaan taikuutta ja noituutta osana ihmisten arkea, eikä niinkään oikeudellisesta näkökulmasta. Säilyneen aineiston perusteella Ylä-Satakunnassa käytiin vuosina 1623–1750 69 taikuus- ja noituusoikeudenkäyntiä, joissa syytettyjä oli noin sata. Yli puolet syytetyistä oli miehiä. Taikuudesta sekä noituudesta käräjöitiin läpi tarkastelujakson, mutta kiivaimpia aikoja olivat 1670-luvun loppu …
Naiskuva ja ekspressionismi Kuopion koulun taiteessa 1980‒1986
2022
Artikkelini aiheena ovat Kuopion koulun taiteilijoiden naisaiheiset teokset. Kuopion kouluksi tai koulukunnaksi kutsuttiin väljää kuvataiteilijoiden ryhmää, jonka ydinhenkilöitä olivat Pauno Pohjolainen (s. 1949), Markku Kolehmainen (s. 1951), Pentti Meklin (s. 1952) ja Teemu Saukkonen (s. 1954). Tarkastelemani teokset ajoittuvat vuosille 1980‒1986 ja ovat ilmaisultaan suurimmaksi osaksi uusekspressionistisia. Analysoin, millaisena nainen esitetään Kuopion koulun teoksissa. Teokset kuvaavat, miten nainen on ylistetty, alistettu ja ylistämällä alistettu, mutta myös voimakas ja tasa-arvoinen. 1980-luvulla teokset provosoivat ja kyseenalaistivat porvarillisia arvoja kuten saksalainen ekspressi…
El crimen de agresión : ¿es posible su persecución judicial internacional?
2021
The paper analyses the crime of aggression, in particular the recent activation of the jurisdiction of the International Criminal Court over it and the main obstacles to its effective prosecution, taking into consideration the low number of States Parties that have ratified the Amendments that regulate it