Lifestyle Ubiquitous Gaming: Making Daily Lives More Plesurable. - Tatsuo Nakajima; Vili Lehdonvirta; Eiji Tokunaga; Masaaki Ayabe; Hiroaki Kimura; Yohei Okuda (RTCSA, 2007)

Reflecting human behavior to motivate desirable lifestyle. - Tatsuo Nakajima; Vili Lehdonvirta; Eiji Tokunaga; Hiroaki Kimura (Conference on Designing Interactive Systems, 2008)

Ubipay: conducting everyday payments with minimum user involvement. - Vili Lehdonvirta; Hayuru Soma; Hitoshi Ito; Hiroaki Kimura; Tatsuo Nakajima (CHI Extended Abstracts, 2008)

Using Aesthetic and Empathetic Expressions to Motivate Desirable Lifestyle. - Tatsuo Nakajima; Hiroaki Kimura; Tetsuo Yamabe; Vili Lehdonvirta; Chihiro Takayama; Miyuki Shiraishi; Yasuyuki Washio (EuroSSC, 2008)

Tracking behavior in persuasive apps: is sensor-based detection always better than user self-reporting? - Miyuki Shiraishi; Yasuyuki Washio; Chihiro Takayama; Vili Lehdonvirta; Hiroaki Kimura; Tatsuo Nakajima (CHI Extended Abstracts, 2009)

Applying pervasive technologies to create economic incentives that alter consumer behavior. - Tetsuo Yamabe; Vili Lehdonvirta; Hitoshi Ito; Hayuru Soma; Hiroaki Kimura; Tatsuo Nakajima (UbiComp, 2009)

UbiPay: minimizing transaction costs with smart mobile payments. - Vili Lehdonvirta; Hayuru Soma; Hitoshi Ito; Tetsuo Yamabe; Hiroaki Kimura; Tatsuo Nakajima (Mobility Conference, 2009)

Using individual, social and economic persuasion techniques to reduce CO2 emissions in a family setting. - Miyuki Shiraishi; Yasuyuki Washio; Chihiro Takayama; Vili Lehdonvirta; Hiroaki Kimura; Tatsuo Nakajima (PERSUASIVE, 2009)

Virtual item sales as a revenue model: identifying attributes that drive purchase decisions. - Vili Lehdonvirta (Electron. Commer. Res., 2009)

A crowdsourcing based mobile image translation and knowledge sharing service. - Yefeng Liu; Vili Lehdonvirta; Mieke Kleppe; Todorka Alexandrova; Hiroaki Kimura; Tatsuo Nakajima (MUM, 2010)

Activity-Based Micro-pricing: Realizing Sustainable Behavior Changes through Economic Incentives. - Tetsuo Yamabe; Vili Lehdonvirta; Hitoshi Ito; Hayuru Soma; Hiroaki Kimura; Tatsuo Nakajima (PERSUASIVE, 2010)

Virtual Worlds Don't Exist: Questioning the Dichotomous Approach in MMO Studies. - Vili Lehdonvirta (Game Stud., 2010)

Mobile Image Search via Local Crowd: A User Study. - Yefeng Liu; Todorka Alexandrova; Tatsuo Nakajima; Vili Lehdonvirta (RTCSA (2), 2011)

The Stoic Male: How Avatar Gender Affects Help-Seeking Behavior in an Online Game. - Mika Lehdonvirta; Yosuke Nagashima; Vili Lehdonvirta; Akira Baba (Games Cult., 2012)

Drawing on mobile crowds via social media - Case UbiAsk: image based mobile social search across languages. - Yefeng Liu; Vili Lehdonvirta; Todorka Alexandrova; Tatsuo Nakajima (Multim. Syst., 2012)

Designing motivation using persuasive ambient mirrors. - Tatsuo Nakajima; Vili Lehdonvirta (Pers. Ubiquitous Comput., 2013)

Situated crowdsourcing using a market model. - Simo Hosio; Jorge Gonçalves 001; Vili Lehdonvirta; Denzil Ferreira; Vassilis Kostakos (UIST, 2014)

Pink and Blue Pixel$: Gender and Economic Disparity in Two Massive Online Games. - Vili Lehdonvirta; Rabindra A. Ratan; Tracy L. M. Kennedy; Dmitri Williams (Inf. Soc., 2014)

Mine the gap: Bitcoin and the maintenance of trustlessness. - Gili Vidan; Vili Lehdonvirta (New Media Soc., 2019)

Online Labour Index 2020: New ways to measure the world's remote freelancing market. - Fabian Stephany; Otto Kässi; Uma Rani; Vili Lehdonvirta (Big Data Soc., 2021)

Compute North vs. Compute South: The Uneven Possibilities of Compute-based AI Governance Around the Globe. - Vili Lehdonvirta; Boxi Wu; Zoe Hawkins (AIES (1), 2024)

Institutional logics and business models of digital niche marketplaces. - Patrick Holzmann; Patrick Gregori; Stephan Bohn; Georg Reischauer; Nicolas Friederici; Vili Lehdonvirta (Inf. Organ., 2025)