Open Access Research Data Repository for Corpus Linguistic Data – A Modular Approach

Presentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014

Open African Reference Pathology Data Center

Poster at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014

Linked Open Data and Islandora

Presentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014

New business models for open research

Presentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014

Implementing Widely-used Vocabularies to Produce Linked Open Data in the Context of Open Repositories

Presentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014

Connections that work – Linked Open Data demystified

Esitys Kirjastoverkkopäivillä 22.10.2014 Helsingissä – Presentation of Jakob Voß at the Library Network Days, October 22, 2014 in Helsinki.

Towards reliable data - counting the Finnish Open Access publications

Presentation at the CRIS2016 conference in St Andrews, June 10, 2016

Effects of Government Ownership on Firm Performance: Evidence from Finnish Companies

Tutkimuksen tarkoituksena on selvittää, miten valtionomistajuus vaikuttaa yrityksen suorituskykyyn suomalaisissa pörssinoteeratuissa valtionyhtiöissä, joissa valtio toimii pää- tai osaomistajana. Suorituskykyä tutkitaan kandella eri menetelmällä. Ensin tutkitaan osaketuottoja Jensenin alfan avulla, jonka jälkeen suoritetaan tilinpäätöstunnuslukujen toimialavertailu. Tutkimuksen teoriaosuudessa esitetään yksityistämisen tuottamia etuja yrityksen taloudelliseen suorituskykyyn, sekä myöskin valtionomistajuuden tuottamia etuja. Lisäksi teoriaosuudessa käsitellään aikaisempien empiiristen tutkimusten tuloksia valtionomistajuuden vaikutuksista. Tämän tutkimuksen empiirisessä osiossa käytettävä data on saatu osakedatan osalta Datastreamista ja tilinpäätöstunnuslukujen osalta Balance Consulting Oy:ltä. Kokonaisosakedataa koskeva tutkimus Jensenin alfalla ei osoittanut valtionyhtiöiden toimivan tehottomasti, vaan osoitti yritysten kyenneen tuottamaan epänormaaleja tuottoja riskitasoonsa nähden. Vuositasolle pilkotun datan analysointi sen sijaan tuotti useita negatiivisia alfoja yrityksille eli merkkejä tehottomuudesta tiettyinä vuosina. Lisäksi tilinpäätöstunnuslukujen analysointi osoitti osan valtionyhtiöistä olleen pääosin omaa toimialaansa tehottomampia, kun taas osa kykenipäihittämään toimialansa.

Separation of Gas Bubbles from Circulation Waters and Pulp Suspensions in Open Channel Flow

The objective of this thesis was to study the removal of gases from paper mill circulation waters experimentally and to provide data for CFD modeling. Flow and bubble size measurements were carried out in a laboratory scale open gas separation channel. Particle Image Velocimetry (PIV) technique was used to measure the gas and liquid flow fields, while bubble size measurements were conducted using digital imaging technique with back light illumination. Samples of paper machine waters as well as a model solution were used for the experiments. The PIV results show that the gas bubbles near the feed position have the tendency to escape from the circulation channel at a faster rate than those bubbles which are further away from the feed position. This was due to an increased rate of bubble coalescence as a result of the relatively larger bubbles near the feed position. Moreover, a close similarity between the measured slip velocities of the paper mill waters and that of literature values was obtained. It was found that due to dilution of paper mill waters, the observed average bubble size was considerably large as compared to the average bubble sizes in real industrial pulp suspension and circulation waters. Among the studied solutions, the model solution has the highest average drag coefficient value due to its relatively high viscosity. The results were compared to a 2D steady sate CFD simulation model. A standard Euler-Euler k-ε turbulence model was used in the simulations. The channel free surface was modeled as a degassing boundary. From the drag models used in the simulations, the Grace drag model gave velocity fields closest to the experimental values. In general, the results obtained from experiments and CFD simulations are in good qualitative agreement.

Julkishallinnon sähköisten palveluiden arkkitehtuurit

Sähköinen asiointi on yleistynyt viime vuosien aikana nopeasti. Toimivia julkishallinnon sähköisiä palveluita kehitetään jatkuvasti yhä uusiin tarkoituksiin. Tällä hetkellä sähköisten palveluiden tarjontaa leimaa hajanaisuus. Jokainen palveluita tarjoava organisaatio kehittää palveluita itsenäisesti, omalla tavallaan. Palveluiden kehittäminen asiakaslähtöisesti edellyttää palvelukokonaisuuksien suunnittelua arkkitehtuuritasolla. Yksittäisten sovellusten kehittämisen lisäksi on huomioitava näiden sovellusten toimivuus yhteen, osana suurempaa kokonaisuutta. Palvelukeskeisessä arkkitehtuurisuunnittelussa lähtökohta on se, että jokainen yksittäinen sovellus on itsessään palvelu, joka tuottaa määritelmänsä mukaisen tulosteen sellaisessa muodossa, jota muut sovellukset kykenevät ymmärtämään. Työn tuloksena havaittiin, että vaikka sähköiselle hallinnolle on kehitetty useita viitearkkitehtuureja, on käytännön työ palveluiden integroimiseksi vielä kesken. Yksittäisten palveluiden liittäminen suuremmiksi kokonaisuuksiksi vaatii määrätietoista arkkitehtuurisuunnittelua sekä kansallista suunnittelun koordinointia. Tiedon jakaminen organisaatiorajojen yli muodostaa joukon kysymyksiä, joihin ei ole vielä vastausta. Tietosuojaa ja yksityisyyttä ei voida uhrata sähköistä hallintoa suunniteltaessa.

Environmental inFluences on the Adoption of Open Innovation: Analysis of Structural, Institutional and Cultural Impacts

The concept of open innovation has recently gained widespread attention, and is particularly relevant now as many firms endeavouring to implement open innovation, face different sets of challenges associated with managing it. Prior research on open innovation has focused on the internal processes dealing with open innovation implementation and the organizational changes, already taking place or yet required in companies order to succeed in the global open innovation market. Despite the intensive research on open innovation, the question of what influences its adoption by companies in different contexts has not received much attention in studies. To fill this gap, this thesis contribute to the discussion on open innovation influencing factors by bringing in the perspective of environmental impacts, i.e. gathering data on possible sources of external influences, classifying them and testing their systemic impact through conceptual system dynamics simulation model. The insights from data collection and conceptualization in modelling are used to answer the question of how the external environment affects the adoption of open innovation. The thesis research is presented through five research papers reflecting the method triangulation based study (conducted at initial stage as case study, later as quantitative analysis and finally as system dynamics simulation). This multitude of methods was used to collect the possible external influence factors and to assess their impact (on positive/negative scale rather than numerical). The results obtained throughout the thesis research bring valuable insights into understanding of open innovation influencing factors inside a firm’s operating environment, point out the balance required in the system for successful open innovation performance and discover the existence of tipping point of open innovation success when driven by market dynamics and structures. The practical implications on how firms and policy-makers can leverage environment for their potential benefits are offered in the conclusions.

Open > Link > GO! Datan avaamisesta kirjastomaailmassa/-lla

Esitys Kirjastoverkkopäivillä 25.10.2012 Helsingissä

Open science, citizen science, crowd science – promises and challenges

Presentation at the Nordic Perspectives on Open Access and Open Science seminar, Helsinki, October 15, 2013

Open knowledge in science and elsewhere

Presentation at the Nordic Perspectives on Open Access and Open Science seminar, Helsinki, October 15, 2013

Open innovation: university-industry interaction in Russia

Innovation nowadays is one of the key elements of counties’ competitiveness. In the face of continuous world economic changes, open innovation business model implementation allows many companies to improve and accelerate their innovation processes through collaboration. Universities as traditional sources of knowledge might be involved in such kind of collaboration. In developing countries, which are in transition towards innovation-based economy, as Russia, open innovation business model can serve as a tool to speed up this transition. The Master’s Thesis explores the implementation of open innovation model in collaboration between companies and universities in global scale and particularly in Russia. The study is qualitative and it is based on integrative analysis of literature, secondary data and results of the survey, conducted among Russian universities. In the thesis a model for implementation of open innovation into Triple Helix model is elaborated. The study also explores not very common practice of reverse-directional interaction - from industry to university. The findings of this research show a necessity of solving the identified problems in parallel with implementation of open innovation concept in university-industry collaboration.