Search results for "este"

Ympäristövastuullisuuden edistäminen seurakunnissa : johdon rooli työntekijöiden sitouttamisessa

2016

Suomen evankelisluterilaiset seurakunnat toteuttavat monien yhteiskunnallisesti merkittävien tehtävien ohella vastuullista ympäristötoimintaa. Työkaluksi siihen on kehitetty seurakuntien vapaaehtoinen ympäristöjärjestelmä, Kirkon ympäristödiplomi. Diplomin vaikuttavuutta voidaan parantaa johdon sitoutumisella ja työntekijöiden sitouttamisella ympäristötoimintaan. Tutkielmassa sitoutuneisuutta kartoitettiin kyselyllä, johon vastasi 50 Oulun hiippakunnan seurakuntien johdon edustajaa sekä diplomiseurakunnista, että seurakunnista, joissa ei ole diplomia. Lisäksi tarkasteltiin sähkönkulutusta yhtenä ympäristökysymyksenä ja selvitettiin sähkönsäästöön sitoutumisen vaikutusta seurakuntien sähkönk…

Formatiivinen arviointitutkimus ympäristöjärjestelmän vaikutuksista - Green Office Viikin kampuksella

2014

Ympäristöjärjestelmät ovat 2000-luvulla yleistyneet muiden organisaatioiden ohella myös suomalaisissa korkeakouluissa. Järjestelmien yleistyessä kysymykset niiden vaikuttavuudesta nousevat esiin yhä useammin, eivätkä aihetta koskevat tutkimukset ole onnistuneet antamaan niihin yksiselitteistä vastausta. WWF:n Green Office -järjestelmä on ollut käytössä Helsingin yliopiston Viikin kampuksella vuodesta 2011 lähtien. Järjestelmän vaikutuksista haluttiin saada tarkempaa tietoa, josta olisi hyöytä paitsi järjestelmän kehittämiseen Viikissä, myös yleisemmin järjestelmää soveltaville ja sen käyttöönottoa harkitseville tahoille. Green Officen vaikutuksia Viikissä lähestyttiin kolmesta näkökulmasta:…

Eläköitymisen vaikutus kulutukseen Yhdysvalloissa : suunniteltu vs. ei-suunniteltu eläköityminen

2008

CCDC 604222: Experimental Crystal Structure Determination

2007

Related Article: K.Ejsmont, R.Gajda, M.Makowski|2007|Acta Crystallogr.,Sect.C:Cryst.Struct.Commun.|63|o80|doi:10.1107/S0108270106052590

Surrogate-assisted evolutionary multiobjective shape optimization of an air intake ventilation system

2017

We tackle three different challenges in solving a real-world industrial problem: formulating the optimization problem, connecting different simulation tools and dealing with computationally expensive objective functions. The problem to be optimized is an air intake ventilation system of a tractor and consists of three computationally expensive objective functions. We describe the modeling of the system and its numerical evaluation with a commercial software. To obtain solutions in few function evaluations, a recently proposed surrogate-assisted evolutionary algorithm K-RVEA is applied. The diameters of four different outlets of the ventilation system are considered as decision variables. Fr…

Investigating serendipity in recommender systems based on real user feedback

2018

Over the past several years, research in recommender systems has emphasized the importance of serendipity, but there is still no consensus on the definition of this concept and whether serendipitous items should be recommended is still not a well-addressed question. According to the most common definition, serendipity consists of three components: relevance, novelty and unexpectedness, where each component has multiple variations. In this paper, we looked at eight different definitions of serendipity and asked users how they perceived them in the context of movie recommendations. We surveyed 475 users of the movie recommender system, MovieLens regarding 2146 movies in total and compared tho…

Cross-Domain Recommendations with Overlapping Items

2016

In recent years, there has been an increasing interest in cross-domain recommender systems. However, most existing works focus on the situation when only users or users and items overlap in different domains. In this paper, we investigate whether the source domain can boost the recommendation performance in the target domain when only items overlap. Due to the lack of publicly available datasets, we collect a dataset from two domains related to music, involving both the users’ rating scores and the description of the items. We then conduct experiments using collaborative filtering and content-based filtering approaches for validation purpose. According to our experimental results, the sourc…

Continuous Requirements Risk Profiling in Information Systems Development

2015

With the increasing adoption of agile, lean, and iterative development methods, information systems development (ISD) has become continuous, meaning that system development moves rapidly from release to release. This means that work practices and challenges that practitioners face have changed. Despite these changes, requirements development is still critical in ISD. However, IS literature is silent on how to manage requirements-related risks in the practice of continuous IS development. To fill this gap, we propose a continuous requirements risk profiling method. The study is informed by design science research methodology, and we apply focus group interviews and a Delphi study for data co…

A Serendipity-Oriented Greedy Algorithm for Recommendations

2017

Most recommender systems suggest items to a user that are popular among all users and similar to items the user usually consumes. As a result, a user receives recommendations that she/he is already familiar with or would find anyway, leading to low satisfaction. To overcome this problem, a recommender system should suggest novel, relevant and unexpected, i.e. serendipitous items. In this paper, we propose a serendipity-oriented algorithm, which improves serendipity through feature diversification and helps overcome the overspecialization problem. To evaluate our algorithm and compare it with others, we employ a serendipity metric that captures each component of serendipity, unlike the most …

Conceptualizing the Value Co-Destruction Process for Service Systems: Literature Review and Synthesis

2017

This study conceptualizes the notion of value co-destruction by reviewing and synthesizing the scattered and scarce value co-destruction literature in interdisciplinary fields. Building on our synthesis, we outline a conceptual framework for the value co-destruction process consisting of three interrelated categories of key concepts. Our framework helps in identifying, analyzing and rectifying unwanted outcomes of a service process and highlighting the dynamic nature of value co-destruction in service systems. peerReviewed