publications([{ "lang": "en", "type_publi": "icolcomlec", "doi": "https://doi.org/10.1145/3604272", "title": "Studying the Visual Representation of Microgestures", "url": "https://hal.science/hal-04193374", "abstract": "The representations of microgestures are essentials for researchers presenting their results through academic papers and system designers proposing tutorials to novice users. However, those representations remain disparate and inconsistent. As a first attempt to investigate how to best graphically represent microgestures, we created 21 designs, each depicting static and dynamic versions of 4 commonly used microgestures (tap, swipe, flex and hold). We first studied these designs in a quantitative online experiment with 45 participants. We then conducted a qualitative laboratory experiment in Augmented Reality with 16 participants. Based on the results, we provide design guidelines on which elements of a microgesture should be represented and how. In particular, it is recommended to represent the actuator and the trajectory of a microgesture. Also, although preferred by users, dynamic representations are not considered better than their static counterparts for depicting a microgesture and do not necessarily result in a better user recognition", "authors": { "1": { "first_name": "Vincent", "last_name": "Lambert" }, "2": { "first_name": "Adrien", "last_name": "Chaffangeon Caillet" }, "3": { "first_name": "Alix", "last_name": "Goguey" }, "4": { "first_name": "Sylvain", "last_name": "Malacria" }, "5": { "first_name": "Laurence", "last_name": "Nigay" } }, "year": 2023, "uri": "http://iihm.imag.fr/publication/LCG+23a/", "id": 961, "bibtype": "inproceedings", "abbr": "LCG+23a", "address": "Athens, Greece", "date": "2023-09-25", "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet", "booktitle": "ACM International Conference on Mobile Human-Computer Interaction (MobileHCI 2023)" }, { "lang": "en", "publisher": "ACM", "doi": "https://doi.org/10.1145/3366550.3372247", "title": "Reducing Error Aversion to Support Novice-to-Expert Transitions with FastTap", "url": "https://hal.archives-ouvertes.fr/hal-02381584", "abstract": "Expert interaction techniques such as gestures or hotkeys are more efficient than traditional WIMP techniques because it is often faster to recall a command than to navigate to it. However, many users seem to be reluctant to switch to expert interaction. We hypothesize the cause might be the aversion of making errors. To test this, we designed two intermediate modes for the FastTap interaction technique, allowing quick confirmation of what the user has retrieved from memory, and quick adjustment if she has made an error. We investigated the impact of these modes and of various error costs in a controlled study (N=36). We found that participants adopted the intermediate modes, that these modes reduced error rate when error cost was high, and that they did not substantially change selection times. However, while it validates the design of our intermediate modes, we found no evidence of greater switch to memory-based interaction, suggesting that reducing the error rate is not sufficient to promote expert use of techniques.", "authors": { "1": { "first_name": "Alix", "last_name": "Goguey" }, "2": { "first_name": "Sylvain", "last_name": "Malacria" }, "3": { "first_name": "Andy", "last_name": "Cockburn" }, "4": { "first_name": "Carl", "last_name": "Gutwin" } }, "year": 2019, "uri": "http://iihm.imag.fr/publication/GMC+19a/", "pages": "1:1-10", "bibtype": "inproceedings", "id": 908, "abbr": "GMC+19a", "address": "Grenoble, France", "date": "2019-12-10", "type": "Conférences nationales avec comité de lecture sur texte complet", "booktitle": "Actes de la 31e conférence francophone sur l'Interaction Homme-Machine (IHM 2019)", "type_publi": "colcomlec" }]);