Vol. 48 No ) (1) (2) (4) GPS ),4) (1) (2) 2.2 (4) GPS Table Comparison of two experiments

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1 Vol. 48 No. 1 Jan , 2 1, , 2 1, , 4 1, 5 5 GPS 1 GPS Open Experiments of Sightseeing Support Systems with Shared Virtual Worlds for Mobile Phones Hiroyuki Tarumi, 1, 2 Yuko Tsurumi, 1, 1 Kayo Yokoo, 3 Shoji Nishimoto, 1 Kazuya Matsubara, 1, 2 Yusuke Hayashi, 1, 3 Yasushi Harada, 4 Fusako Kusunoki, 3 Yuki Mizukubo, 1, 4 Makoto Yoshida 1, 5 and Sangtae Kim 5 We have developed a sightseeing support system, using our shared virtual world service including human-like agents and inter-user communication for popular GPS-phones on the market. We have conducted open experiments for the service. By open experiments, we mean those with real tourists as subjects and letting them use their own phones. By open experiment, we have aimed to acquire realistic and objective evaluation from the viewpoint of sightseeing itself. The experiments were conducted at two major sightseeing destinations in Kagawa prefecture, each taking one week. As results, we have found that visitors responded differently by their age, gender, experiences, etc. We have also found that virtual media should give different information from real media. These findings will help the future design of such services. GPS inaccuracies were found but subjects evaluated them independently from other evaluation. In this paper, the method and results of the experiments are described. 1 Kagawa University 2 SpaceTag, Inc. 3 Tama Art University 4 Business Compass Co., Ltd. 5 University of Tsukuba 1 Presently with The Chugoku Bank 2 NEC 1. GPS 1) Presently with NEC System Technologies, Ltd. 3 Presently with Nippon Telegraph and Telephone West Corporation 4 Presently with J-One Co., Ltd. 5 Presently with Mazda Motor Corporation 110

2 Vol. 48 No ) (1) (2) (4) GPS ),4) (1) (2) 2.2 (4) GPS Table Comparison of two experiments GPS 2 (1) (4) (1) (4) (1) (2)

3 112 Jan (4) GUIDE 5) PC PDA LAN 60 The Parks PDA 6) PDA 800 Miyamae CyberCommunication ) PDA GPS xexplorer 8) PDA GPS GPS 1 Fig. 1 Overlaid virtual model. GUIDE The Parks PDA GUIDE Miyamae xexplorer GPS ) 1 GPS

4 Vol. 48 No Brew Brew Brew Brew 1) Brew 1) Q Q Scheme 9) 10) (1) 365 Fig. 2 2 Configuration of the Browser-Based System. 3 Fig. 3 Kotohiragu s Guide Service Interface and the GPS s Error Compensation Map.

114 Jan. 2007 785 (2) 22 4 3(c) 17 3(a) (4) 3(b) (5) 1 4 1 3 3(a) (c) (6) GPS 3(c) (7) GPS 3(d) (8) 3(a) (c) (9) 4.

5 114 Jan (2) (c) 17 3(a) (4) 3(b) (5) (a) (c) (6) GPS 3(c) (7) GPS 3(d) (8) 3(a) (c) (9) Fig. 4 Experiment scenes at the Kotohiragu. URL (1) (2) GPS A GPS

6 Vol. 48 No Fig. 5 5 Outlook of the real/virtual worlds at the Ritsurin Park. (1) (2) (b) 6(c) 3D 6(d) (4) 3D 2D 2 5 6(a) (b) 2D 3D 2D (5) 6(f) 6 Fig. 6 User interface. (6) 6(g) 2 6(h) (7) 2 3 3D

116 Jan. 2007 12 31 30 6 7 Fig. 7 Using the service at the Ritsurin Park. (8) (9) GPS 5.

7 116 Jan Fig. 7 Using the service at the Ritsurin Park. (8) (9) GPS GPS GPS ,000 GPS t p< (d) 3(b) 2 (e)

8 Vol. 48 No Table 2 Results of the Kotohiragu experiment. (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (4) (2) (1) (4) (2) (1) (4) (2) (2) (4) (2) (1) (1) (2) (1) (2) (4) GPS GPS GPS 2 (i) 4 (j) GPS GPS 6(e) 3D GPS 4 (j)

9 118 Jan Table 3 Free comments from subjects at the Kotohiragu. GPS GPS GPS 0.31 GPS 2 (i) (f) 2 (k) 2 (l) 1 5 5

10 Vol. 48 No Table 4 Results of the Ritsurin Park experiment. (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) GPS (k) (l) (5) (4) (2) (1) (5) (4) (2) (1) (5) (4) (2) (1) (4) (2) (5) (1) (5) (4) (2) (1) (5) (4) (2) (1) (5) (4) (2) (1) (5) (4) (2) (1) (5) (4) (2) (1) (5) (4) (2) (1) (5) (4) (2) (1) (5) (4) (2) (1)

11 120 Jan Table 5 Free comments from subjects at the Ritsurin Park. (1) [ ] (5) [ ] (1) [ ] [ ] (5) [ ] (5) [ ] (5) [ ] (5) [ ] (5) (5) (5) [ ] (5) (5) (5) [ ] (5) [ ] (5) [ ] [ ] (1) [ ] (5) [ ] (5) ) (l) [ ] Table 6 6 Responses by generation (Kotohiragu experiment) (4) (2) (1) (a) (b) (i) (2) (1) (a) (c) (d) (h) (f) 6.7 GPS

12 Vol. 48 No Table 7 7 GPS Examples of cross table between location error evaluation and others. ) (i) (a) 0.31 (a) (i) (j) (c) 0.31 (c) (j) Table 8 8 Responses by gender (Ritsurin Park experiment). (a) (c) (d) (f) (h) (5) (4) (2) (1) (4) (2) (1) (5) (4) (2) (1) (5) (5) (4) (2) (1) (5) (4) (2) (1) GUIDE 5) cm 15 cm PC 850 g xexplorer 9)

13 122 Jan (1) (2) (4) GPS GPS Brew ) Tarumi, H., Tokuda, S., Yasui, T., Matsubara, K. and Kusunoki, F.: Design and Evaluation of a Location-Based Virtual City System for Mobile Phones, Proc.SAINT 2005, pp , IEEE (2005). 2) Vol.47, No.1, pp (2006). 3) Tarumi, H., Tsurumi, Y. Matsubara, K., Hayashi, Y., Mizukubo, Y., Yoshida, M. and Kusunoki, F.: KOTOHIRAGU NAVI- GATOR: An Open Experiment of Location- Aware Service for Popular Mobile Phones, Proc.2nd International Workshop on Locationand Context-Awareness (LoCA 2006 ), Lecture Notes in Computer Science, Vol.3987, pp.48 63, Springer (2006). 4) Tarumi, H., Yokoo, K., Nishimoto, S., Matsubara, K., Harada, Y., Kusunoki, F., Kim, S. and Mizukubo, Y.: Open Experiments of Mobile Sightseeing Support Systems with Shared Virtual Worlds, Proc.International Conference on Advances in Computer Entertainment Technology 2006 (ACE 2006 ), ACM (2006). 5) Cheverst, K., Davies, N., Mitchell, K., Friday, A. and Efstratiou, C.: Developing a Contextaware Electronic Tourist Guide: Some Issues and Experiences, Proc. CHI 2000, pp.17 24, ACM (2000). 6) Ohshima, Y., Maloney, J. and Ogden, A.: The Parks PDA: A Handheld Device for Theme Park Guests in Squeak, Proc. OOPSLA 2003, pp , ACM (2003). 7) Miyamae, M., Terada, T., Kishino, Y., Nishio, S. and Tsukamoto, M.: An Event-driven Navigation Platform for Wearable Computing Environments, Proc Ninth IEEE International Symposium on Wearable Computers (ISWC 05 ), pp , IEEE (2005). 8) xexplorer Vol.47, No.1, pp (2006). 9) Ishida, T.: Q: A Scenario Description Language for Interactive Agents, IEEE Computer, Vol.35, No.11, pp (2002). 10) Matsubara, K., Mizukubo, Y., Morita, T., Tarumi, H. and Kusunoki, F.: An Agent Control Mechanism in Virtual Worlds for Mobile Users, Proc.2005 International Conference

14 Vol. 48 No on Active Media Technology (AMT2005 ), pp , IEEE (2005). ( ) ( ) ACM IEEE-CS NEC JST 21 HCI

15 124 Jan Ph.D

DPA,, ShareLog 3) 4) 2.2 Strino Strino STRain-based user Interface with tacticle of elastic Natural ObjectsStrino 1 Strino ) PC Log-Log (2007 6)

DPA,, ShareLog 3) 4) 2.2 Strino Strino STRain-based user Interface with tacticle of elastic Natural ObjectsStrino 1 Strino ) PC Log-Log (2007 6) 1 2 1 3 Experimental Evaluation of Convenient Strain Measurement Using a Magnet for Digital Public Art Junghyun Kim, 1 Makoto Iida, 2 Takeshi Naemura 1 and Hiroyuki Ota 3 We present a basic technology