Doctoral thesis:
Väätäjä, H. 2014. Framing the user experience in mobile newsmaking with smartphones. Doctoral thesis. April 11th, 2014. Tampere University of Technology. [Framing the User Experience in Mobile Newsmaking with Smartphones]
Publications:
Articles in journals – peer-reviewed
Väätäjä, H., Seppänen, M., Paananen, A. 2014. Creating Value through User Experience: A Case Study in the Metals and Engineering Industry. International Journal of Technology Marketing. [pdf]
Mills, J., Egglestone, P., Rashid, O., Väätäjä, H. 2012. MoJo in Action: The use of mobiles in conflict, community and cross-platform journalism. Continuum: Journal of Media & Cultural Studies, 26, 5, 669-683.
Väätäjä, H. 2012. Mobile Work Efficiency – Balancing between benefits, costs and sacrifices. International Jounal of Mobile Human Computer Interaction (IJMHCI), 4(2), 67-87. [pdf]
Antikainen, M., Väätäjä, H. 2010. Rewarding in Open Innovation Communities - how to Motivate Members. In Int. Journal of Entrepreneurship and Innovation Managament (IJEIM), Vol.11, No.4, pp. 440-456.[pdf]
Mattila, P., Tsuzuki, F., Väätäjä, H., Sasaki, K. 1995. Electroacoustic model for electrostatic ultrasonic transducers with v-grooved backplates. In IEEE Trans. On UFFC. Vol. 42, no. 1, pp. 1-7.
Hietanen, J., Mattila, P., Stor-Pellinen, J., Tsuzuki, F., Väätäjä, H., Sasaki, K. and Luukkala, M. 1993. Factors affecting the sensitivity of electrostatic ultrasonic transducers. In Meas. Sci. Technol.. Vol. 4, pp 1138-1142.
Full papers in conferences – peer-reviewed
Jumisko-Pyykkö, S., Väätäjä, H., Jaakola, M. 2014. Quality management of user-generated content in participatory journalism. Proc. OZCHI '14, Dec. 2-5, 2014, Sydney, Australia. [pdf]
Väätäjä, H., Sirkkunen, E., Ahvenainen, M. 2013. A field trial on mobile crowdsourcing of news content - Factors influencing participation. Proc. INTERACT 2013, Springer. [pdf]
Väätäjä, H., Vainio, T., and Sirkkunen, E. 2012. Location-based crowdsourcing of hyperlocal news - Dimensions of participation preferences. In Proc. GROUP 2012, ACM. [pdf][questionnaire]
Väätäjä, H., and Egglestone P. 2012. Briefing news reporting with mobile assignments – Perceptions, needs and challenges. In Proceedings of the CSCW 2012 (Bellevue, WA, USA, February 10-15, 2012). CSCW 2012, ACM, 485-494. [pdf]
Väätäjä, H., Vainio, T., Sirkkunen, E., and Salo, K. 2011. Crowdsourced news reporting: supporting news content creation with mobile phones. In Proc. MobileHCI '11. ACM, 435-444. DOI= http://doi.acm.org/10.1145/2037373.2037438 [pdf]
Roto, V., Väätäjä, H., Jumisko-Pyykkö, S., Väänänen-Vainio-Mattila, K. 2011. Best practices for capturing context in user experience studies in the wild. Proc. MindTrek’11, ACM. [pdf]
Väätäjä, H. 2010. User experience evaluation criteria for mobile news making technology: findings from a case study. In Proc. OZCHI '10. ACM, 152-159. DOI= http://doi.acm.org/10.1145/1952222.1952252 [pdf]
Jokela, T., Väätäjä, H., and Koponen, T. 2009. Mobile Journalist Toolkit: a field study on producing news articles with a mobile device. In Proc. MindTrek '09. ACM, 45-52. DOI= http://doi.acm.org/10.1145/1621841.1621851 [pdf]
Väätäjä, H., Koponen, T., and Roto, V. 2009. Developing practical tools for user experience evaluation: a case from mobile news journalism. In Proc. ECCE 2009, ACM, 1-8. [pdf]
Wigelius, H. and Väätäjä, H. 2009. Dimensions of Context Affecting User Experience in Mobile Work. In Proc. INTERACT 2009. Springer-Verlag, 604-617. DOI= http://dx.doi.org/10.1007/978-3-642-03658-3_65 [pdf]
Väätäjä, H., Kuosmanen P., Juntti, M. 2000. Performance of multiuser detection in TD-CDMA uplink. In Proc. Of the X European Signal Processing Conference, Tampere, Finland.
Suoranta, R., Estola, K-P., Rantala, S., Väätäjä, H. 1994. Pdf estimation using order statistic filter bank. In Proc of the IEEE International Conference on Acoustics, Speech and Signal Processing, Adelaide, Australia.
Väätäjä, H., Suoranta, R., Rantala, S. 1994. Coherence analysis of multichannel time series applying conditioned multivariate autoregressive spectra. In Proc. Of the IEEE International Conference on Acoustics, Speech and Signal Processing, Adelaide, Australia, 1994.
Hakala, H., Karasti O., Mattila, P., Väätäjä, H. 1994. Using ultrasonic sensor onboard mobile robots. In Proc. of IFAC International Conference on Machine Automation, Tampere, Finland.
Mattila, P., Tsuzuki, F., Väätäjä, H., Sasaki, K. 1994. Simulation model for electrostatic ultrasonic transducers. In Proc. of IFAC International Conference on Machine Automation, Tampere, Finland.
Väätäjä, H., Hakala, H., Mattila, P., Suoranta, R. 1992. 3-D simulation of ultrasonic sensor system in mobile robots. In Proc. Of the 1992 IEEE Ultrasonic Symposium, Tucson, AZ, USA.
Väätäjä, H., Suoranta, R., Mattila, P. 1992. Ultrasonic sensing system simulator for signal procssing algorithm development. In Proc. Of the IAESTED Int. Symposium on Signal Processing and Its Applications, Gold Coast, Australia.
Chapters in books – peer-reviewed
Väätäjä, H. (accepted to be published, 2015). Perceived impacts as user experience components in mobile news making with smartphones. Emerging Perspective on the Design, Use, and Evaluation of Mobile and Handheld Devices, Joanna Lumsden (Ed.), IGI Global.
Väätäjä, H., Männistö, A., Vainio, T., Jokela, T. 2009. Understanding User Experience to Support Learning for Mobile Journalist’s Work. In The Evolution of Mobile Teaching and Learning (Ed. Guy, R.), Informing Science Press, 2009, 177-210. available at http://www.google.com/books [link]
Väänänen-Vainio-Mattila, K., Väätäjä, H., Vainio, T. 2009. Opportunities and Challenges of Designing the Service User eXperience (SUX) in Web 2.0. In Saariluoma, P. and Isomäki, H. (Eds.), Future Interaction Design II, Springer.
Short papers and posters in conferences – peer-reviewed
Väätäjä, H., Pesonen, E. Ethical Issues and Guidelines when Conducting HCI Studies with Animals. CHI'13 Extended Abstracts, April 27-May 2, Paris, France. [slides] [pdf] [promovideo][Hen tango]
Väätäjä, H., Ahvenainen, M., Jaakola, M., Olsson, T. Exploring Augmented Reality for User-Generated Hyperlocal News Content.
CHI'13 Extended Abstracts, April 27-May 2, Paris, France. [pdf]
Väätäjä, H. 2012. Readers' motivations to participate in hyperlocal news content creation. In Proc. GROUP2012, Florida, October 2012, ACM. [pdf][poster]
Väätäjä, H. 2010. User experience of smart phones in mobile journalism: early findings on influence of professional role. In Proc. OZCHI '10. ACM, New York, NY, 1-4. DOI= http://doi.acm.org/10.1145/1952222.1952224 [pdf]
Suhonen, K. and Väätäjä, H. 2010. Assessing the applicability of modular playability heuristics for evaluating health-enhancing games. In Proc. MindTrek '10. ACM, New York, NY, 147-150. DOI= http://doi.acm.org/10.1145/1930488.1930519
Väätäjä, H. and Roto, V. 2010. Mobile questionnaires for user experience evaluation. In Proc CHI EA '10. ACM, New York, NY, 3361-3366. DOI= http://doi.acm.org/10.1145/1753846.1753985 [pdf]
Koponen, T. and Väätäjä, H. 2009. Early adopters' experiences of using mobile multimedia phones in news journalism. In Proc. ECCE 2009. ACM, 1-4. [pdf]
Suhonen, K., Väätäjä, H., Virtanen, T., and Raisamo, R. 2008. Seriously fun: exploring how to combine promoting health awareness and engaging gameplay. In Proc. MindTrek '08. ACM, New York, NY, 18-22. DOI= http://doi.acm.org/10.1145/1457199.1457204
Väätäjä, H. 2008. Factors affecting user experience in mobile systems and services. In Proc. MobileHCI '08. ACM, New York, NY, 551-551. DOI= http://doi.acm.org/10.1145/1409240.1409345
Vaataja, H., Suoranta, R., and Rantala, S. 1994. Coherence analysis of multichannel time series applying conditioned multivariate autoregressive spectra. In Proceedings of the Acoustics, Speech, and Signal Processing,1994. on IEEE international Conference - Volume 04 (April 19 - 22, 1994). IEEE Computer Society, Washington, DC, 381-384.
Workshop and Industrial papers – peer-reviewed
Väätäjä, H. Animal Welfare as a Design Goal in Technology Mediated Human-Animal Interaction. The 1st International Congress on Animal Human Computer Interaction "Expanding Boundaries Beyond Human". In conjuction with ACE conference, 2014.
Väätäjä, H. Assessing Dog's Experience in ACI. Workshop on Animal-Computer Interaction (ACI): Pushing Boundaries beyond "Human" in conjuction with NordiCHI 2014, Helsinki.
Väätäjä, H., Luusua, A., Davoli, L., Jalaliniya, S. 2013. Walking the City: Capturing and Understanding City Life with the Help of Everyday Ubiquitous Technology. Workshop on "Walking for Data" at INTERACT 2013, Cape Town, South Africa.
Väätäjä, H. 2013. Without a Clue What Design It Leads to: Exploring and Understanding a City and Life within It by Walking. Workshop on "Made for Sharing: HCI Stories of Transfer, Triumph and Tragedy" at CHI 2013, Paris, France. [pdf]
Väätäjä, H., Janhunen, J. Supporting mobile maintenance work - Needs and requirements. Presented at Industrial session at NordiCHI2012, Copenhagen, Denmark. [pdf]
Väätäjä, H., Pesonen, E. Please, don't drive me nuts! Experience goals for dogs. Wokshop on "How to utilize user experience goals in design?" at NordiCHI2012. [pdf]
Vainio, T. Väätäjä, H. 2012. Self-Efficacy in Human-Robot Interaction. Presented at CSCW2012 workshop: Exploring collaboration in challenging environments: From the car to the factory and beyond.
Väätäjä, H. 2011. Mobile Work Efficiency – Balancing between benefits, costs and sacrifices. Workshop paper at MobileHCI2011. Selected as the Best paper of the workshop "Mobile Work Efficiency: Enhancing Workflows with Mobile Devices".
Väätäjä, H. and Männistö, A. A. 2010. Bottlenecks, usability issues and development needs in creating and delivering news videos with smart phones. In Proc. MoViD '10. ACM, New York, NY, 45-50. DOI= http://doi.acm.org/10.1145/1878022.1878034 [pdf]
Roto, V., Väätäjä, H. 2010. Utilizing Contextual Data in Mobile Applications Development. Presented at CHI Workshop: Bridging the Gap: Moving from Contextual Analysis to Design, April 10, 2010. http://carmster.com/gap/uploads/Main/Roto.pdf
Väätäjä, H., Roto, V. 2009. Questionnaires in User Experience Evaluation, in UXEM Workshop in conjunction with INTERACT 2009, Uppsala, Sweden. [pdf]
Väänänen-Vainio-Mattila, K., Väätäjä, H. 2008. Towards a Life-cycle Framework of Mobile Service User Experience, MIUX Workshop in conjunction with MobileHCI 2008, Amsterdam, Netherlands.
Patents
Siirtola, J., Vaataja, H. Method and arrangement for calculating correlation, United States Patent 6631173, US Patent Issued on October 7, 2003.
Other publications
Chapters in books
Toskala, A., Holma, H., Lehtinen, O., Väätäjä, H. (2002, 2004, 2005) UTRA TDD Mode. In WCDMA for UMTS, eds. Harri Holma and Antti Toskala, John Wiley & Sons, Ltd. England.
Full & short papers in conferences
Väätäjä, H., Paajanen, A., Seppänen, M. 2012. Competitive advantage with user experience – findings from three MEI companies. Proc. ISPIM 2012, Barcelona, Spain, 2012. [pdf]
Väätäjä, H., Antikainen, M. 2009. Member Characteristics and Participation in Online Open Innovation Communities. In the Proceedings of The XX ISPIM Conference, June 2009, Vienna, Austria.[pdf]
Antikainen, M., Väätäjä, H. 2008. Rewarding in Open Innovation Communities - How to Motivate Members? In Proceedings of The XIX ISPIM Conference “Open Innovation – Creating Products and Services through Collaboration”, Tours, France. [pdf]
Antikainen, M., Väätäjä, H. 2008. Collaboration in Open Innovation Communities - Do Users Want It? In Proc. of eBRF 2008. September 24-26, Helsinki-Stockholm, Finland-Sweden.[pdf]
Antikainen, M., Väätäjä, H. 2008. Innovating is Fun – Motivations to Participate in Online Open Innovation Communities. In Proc. of The 1st ISPIM Innovation Symposium, December 14-17th, Singapore.[pdf]