![]() Popleteev, Andrei ![]() in 15th International Conference on Mobile and Ubiquitious Multimedia (MUM-2016) (2016, December) The increasing accuracy of indoor positioning systems requires an appropriately accurate evaluation, which compares system outputs with the known coordinates of test locations --- the ground truth ... [more ▼] The increasing accuracy of indoor positioning systems requires an appropriately accurate evaluation, which compares system outputs with the known coordinates of test locations --- the ground truth. Although ground truth data are rarely (if ever) tested, they are traditionally assumed to be perfectly accurate. However, even small errors introduced by inaccurate ground truth need to be taken into account for fair evaluation and comparison between modern high-resolution positioning systems. In this paper we analyze the quality of ground truth data provided by clicking on an interactive floor plan (a method employed by such classical systems as RADAR and Horus). Experimental results show that this method has high precision but low accuracy, and high systematic errors make it unsuitable for evaluation of fine-grained localization systems. [less ▲] Detailed reference viewed: 182 (3 UL)![]() Mccall, Roderick ![]() ![]() in 8th International Conference on Human System Interaction (HSI'2015) (2015, June) This paper presents a comparative pilot usability study of Dasher and an on-screen keyboard on a head-mounted display. Interaction logging data was captured along with subjective responses (via the SUS ... [more ▼] This paper presents a comparative pilot usability study of Dasher and an on-screen keyboard on a head-mounted display. Interaction logging data was captured along with subjective responses (via the SUS questionnaire). The results indicate that there is a strong need to develop text entry systems for smart glasses rather to simply adopt those that are already available. However, both approaches are useful when there is a need to enter private or sensitive data. [less ▲] Detailed reference viewed: 336 (7 UL)![]() Popleteev, Andrei ![]() in UbiComp-2013 Adjunct proceedings (2013) This paper investigates feasibility of device-free indoor localization using single passive receiver. Instead of local wireless nodes sharing one frequency channel, this work leverages multiple ambient FM ... [more ▼] This paper investigates feasibility of device-free indoor localization using single passive receiver. Instead of local wireless nodes sharing one frequency channel, this work leverages multiple ambient FM radio stations. Experimental results demonstrate feasibility of the proposed approach and highlight the role of frequency diversity for passive localization. [less ▲] Detailed reference viewed: 156 (4 UL)![]() ; McCall, Roderick ![]() ![]() in Papadopoulos, Harris; Andreou, Andreass; Iliadis, Lazaros (Eds.) et al Artificial Intelligence Applications and Innovations (2013) Based upon the core concept of the LiveCity Project we focus on the specific City Cultural Experiences v2v Pilot,designed to allow for visitors at two defined locations to interact with one another in a ... [more ▼] Based upon the core concept of the LiveCity Project we focus on the specific City Cultural Experiences v2v Pilot,designed to allow for visitors at two defined locations to interact with one another in a joint experience and to get educational/entertainment benefits, originating directly from the museum content delivery. We discuss a set of semi-pervasive games (the so-called “Twin Cities”games) which are designed to bring people together at remotely twinned locations through the use of video-to-video communication and multitouch interaction. We also present an early classification of video-to-video (v2v) interaction games that is designed to inform designers about the potential of such technologies. We classify them as: using video for awareness and communication, interacting with video and video as a game. [less ▲] Detailed reference viewed: 354 (17 UL) |
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