User profiles for J. Peltomäki

Jarkko Peltomäki

- Verified email at sbs.su.se - Cited by 412

Jarkko Peltomäki

- Verified email at turambar.org - Cited by 176

Faster bounding box annotation for object detection in indoor scenes

B Adhikari, J Peltomaki, J Puura… - 2018 7th European …, 2018 - ieeexplore.ieee.org
This paper proposes an approach for rapid bounding box annotation for object detection
datasets. The procedure consists of two stages: The first step is to annotate a part of the dataset …

Age, gender, and risk‐taking: Evidence from the S&P 1500 executives and market‐based measures of firm risk

J Peltomäki, J Sihvonen, S Swidler… - Journal of Business …, 2021 - Wiley Online Library
… for firm j at time t. Our first measure of firm risk is Total risk j,t , which is measured as the
annualized standard deviation, or volatility, of the daily stock returns for firm j during year t. The …

Crash fears and stock market effects: evidence from web searches and printed news articles

J Nikkinen, J Peltomäki - Journal of Behavioral Finance, 2020 - Taylor & Francis
The authors studied the complex relationship between information supply and demand using
newspaper articles and web searches that reflect investors’ crash fears. They report that …

Sbft tool competition 2023-cyber-physical systems track

M Biagiola, S Klikovits, J Peltomäki… - 2023 IEEE/ACM …, 2023 - ieeexplore.ieee.org
J. Peltomäki was supported by funding from the ECSEL Joint Undertaking (JU) under grant
… Klikovits, and J. Peltomäki, “SBST CPS tool competition infrastructure,” https://github.com/ sbft-…

Changes in investors' market attention and near-term stock market returns

A Klemola, J Nikkinen, J Peltomäki - Journal of Behavioral Finance, 2016 - Taylor & Francis
We use Google Search volume to track changes investors' positive and negative market
attention. Our results support the hypothesis that this information reflects investors' optimistic …

Global economic activity as an explicator of emerging market equity returns

M Graham, J Peltomäki, V Piljak - Research in International Business and …, 2016 - Elsevier
This paper evaluates whether global economic activity, measured by the maritime index
and commodity index, is a distinct common factor in explaining equity returns in emerging …

Wasserstein generative adversarial networks for online test generation for cyber physical systems

J Peltomäki, F Spencer, I Porres - Proceedings of the 15th Workshop on …, 2022 - dl.acm.org
We propose a novel online test generation algorithm WOGAN based on Wasserstein
Generative Adversarial Networks. WOGAN is a general-purpose black-box test generator …

Investor attention to market categories and market volatility: The case of emerging markets

J Peltomäki, M Graham, A Hasselgren - Research in international Business …, 2018 - Elsevier
This paper examines the impact of investor attention on stock market and FX market volatility
in emerging economies using newly constructed innovative attention proxies that capture …

WOGAN at the SBST 2022 CPS tool competition

J Peltomäki, F Spencer, I Porres - Proceedings of the 15th Workshop on …, 2022 - dl.acm.org
WOGAN is an online test generation algorithm based on Wasserstein generative adversarial
networks. In this note, we present how WOGAN works and summarize its performance in the …

Falsification of multiple requirements for cyber-physical systems using online generative adversarial networks and multi-armed bandits

J Peltomäki, I Porres - 2022 IEEE International Conference on …, 2022 - ieeexplore.ieee.org
We consider the problem of falsifying safety requirements of Cyber-Physical Systems expressed
in signal temporal logic (STL). This problem can be turned into an optimization problem …