A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Deducing self-interaction in eye movement data using sequential spatial point processes (2016)
Penttinen, A., & Ylitalo, A.-K. (2016). Deducing self-interaction in eye movement data using sequential spatial point processes. Spatial Statistics, 17, 1-21. https://doi.org/10.1016/j.spasta.2016.03.005
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Penttinen, Antti; Ylitalo, Anna-Kaisa
Lehti tai sarja: Spatial Statistics
ISSN: 2211-6753
eISSN: 2211-6753
Julkaisuvuosi: 2016
Volyymi: 17
Lehden numero: 0
Artikkelin sivunumerot: 1-21
Kustantaja: Elsevier BV
Kustannuspaikka: Amsterdam
Julkaisumaa: Alankomaat
Julkaisun kieli: englanti
DOI: https://doi.org/10.1016/j.spasta.2016.03.005
Julkaisun avoin saatavuus: Ei avoin
Julkaisukanavan avoin saatavuus:
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/49995
Tiivistelmä
Eye movement data are outputs of an analyser tracking the gaze when a person is inspecting a scene. These kind of data are of increasing importance in scientific research as well as in applications, e.g. in marketing and human-computer interface design. Thus the new areas of application call for advanced analysis tools. Our research objective is to suggest statistical modelling of eye movement sequences using sequential spatial point processes, which decomposes the variation in data into structural components having interpretation. We consider three elements of an eye movement sequence: heterogeneity of the target space, contextuality between subsequent movements, and time-dependent behaviour describing self-interaction. We propose two model constructions. One is based on the history-dependent rejection of transitions in a random walk and the other makes use of a history-adapted kernel function penalized by user-defined geometric model characteristics. Both models are inhomogeneous self-interacting random walks. Statistical inference based on the likelihood is suggested, some experiments are carried out, and the models are used for determining the uncertainty of important data summaries for eye movement data.
YSO-asiasanat: katse; silmänliikkeet; katseenseuranta; mallintaminen; tietojärjestelmät; stokastiset prosessit
Vapaat asiasanat: coverage; heterogeneous media; likelihood; self-interacting random walk; stochastic geometry
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- Nuotinluku: Silmänliikkeet ja asiantuntijuuden kehittyminen
- Huovinen, Erkki
- Suomen Akatemia
OKM-raportointi: Kyllä
Raportointivuosi: 2016
JUFO-taso: 1