Julien Gori


I am currently a Post-Doc at Ex-Situ, working with Michel Beaudouin-Lafon . Before that, I was a PhD student working at Telecom ParisTech under the supervision of Olivier Rioul and Yves Guiard. In 2020, I will be working with Antti Oulasvirta at Aalto University.

My research takes place in Human Computer Interaction (HCI) and is pursued using tools that are classically known in electrical engineering but less so in HCI. I have spent my PhD developing various models of performance for goal-directed movements, which take advantage of Shannon’s information-theory and which address the ubiquitous pointing interaction. I am currently working on operationalizing some of the results obtained during my PhD so that they can serve the HCI community, by providing more general, robust, and efficient methods for estimating pointing performance. I am also currently looking into how information accessible on the computer side can be used to enhance selection (targets, commands).

You can find my CV in english here . Feel free to contact me.

Contact Information

List of Publications

2019

J. Gori, O. Rioul, "Regression to a Linear Lower Bound With Outliers: An Exponentially Modified Gaussian Noise Model" (accepted EUSIPCO, 2-6 September 2019) PDF LINK

J. Gori, O. Rioul, and Y. Guiard, "Speed-accuracy tradeoff of aimed movement: A formal information-theoretic transmission scheme (FITTS)," in ACM CHI Conference on Human Factors in Computing Systems (CHI 2019), Glasgow, United Kingdom, May 4-9th, 2019 SLIDES LINK

2018

My PhD Thesis: "Modelling the Speed-Accuracy Tradeoff using the Tools of Information Theory" [PDF LINK] [SLIDES]

J. Gori, O. Rioul, "Information-Theoretic Analysis of the Speed-Accuracy Tradeoff with Feedback", in IEEE Proc. Systems, Man, Cybernetics (SMC), Miyazaki, Japan, October 7-10, 2018 PDF Link

J. Gori, O. Rioul, and Y. Guiard, "Speed-accuracy tradeoff of aimed movement: A formal information-theoretic transmission scheme (FITTS)," in ACM Transactions on Computer-Human Interaction (TOCHI) PDF LINK

J. Gori, O. Rioul, and Y. Guiard, and M. Beaudouin-Lafon, "The Perils of Confounding Factors: How Fitts’ Law Experiments can Lead to False Conclusions," in Proc. ACM CHI Conference on Human Factors in Computing Systems (CHI 2018), Montréal, Canada, April 21-26th, 2018 PDF Link

2017

J. Gori, O. Rioul, Y. Guiard, and M. Beaudouin-Lafon, "One Fitts' law, two metrics," in Proc. 16th IFIP TC.13 International Conference on Human-Computer Interaction (INTERACT 2017), Mumbai, India, Sept. 25-29, 2017. Lecture Notes in Computer Science, vol. 10515, Part III, pp. 525-533, Springer, 2017.
PDF Link

E. Duteil, M. Kandel, J. Gori, S. Roze, I. Borget, "Method of Extrapolation: Estimation of the impact of the proportional hazard assumption on the efficacy estimation", ISPOR 20th Annual European Congress, Glasgow, Scotland, November 4-8th, 2017

J. Gori, O. Rioul, and Y. Guiard, "To miss is human: Information-theoretic rationale for target misses in Fitts' law," in Proc. ACM CHI Conference on Human Factors in Computing Systems (CHI 2017), Denver, USA, May 6-11th, 2017, pp. 260-264. PDF Link

2015

J. Gori, O. Rioul, and Y. Guiard, "Reconciling Fitts' law with Shannon's information theory," European Mathematical Psychology Group Meeting (EMPG 2015), Padua, Italy, Sept. 1-3, 2015. Link

Preprints / Work in Progress

J. Gori, Y. Guiard, M. Beaudouin-Lafon, "Multi-évaluation du pointage et application à l’évaluation de la dyspraxie", (Accepté IHM 2019, Grenoble, 10-13 Décembre)

J. Gori, O. Rioul, "A Kinematic Information-Theoretic Transmission Scheme for Goal-Directed Movements", (pre-print) PDF LINK

Y. Guiard, J. Gori, Q. Roy, O. Rioul, "Not Just Pointing: Shannon’s Information Theory as a General Tool for Performance Evaluation of Input Techniques", (pre-print) PDF LINK