The mobile Web has been a dominant channel for mobile users to fulfill information needs. Mobile users, however, also use other information channels such as the environment and personal sources. Through a 14-week exploratory diary study with ten mobile users, we found uncertainty with the accessibility of target information in an information channel to be a significant barrier for mobile users in using that channel to address an information need. This barrier is especially apparent when the information to be sought is for an upcoming activity or plan. In addition, we found that local infrastructural information such as information of services, resources, and directions within a specific point of interest was often perceived inaccessible or difficult to access on the Web, resulting in mobile users often preferring to use other information channels to obtain the information. We provide an explanation of the impact of such uncertainty using the cognitive maps framework from environmental cognition, and provide design implications on how Ubicomp systems can make local infrastructural information more accessible to mobile users.
{"title":"Making Local Information More Accessible: A Diary Study of Information Channel Selection of Mobile Users","authors":"Yung-Ju Chang, Mark W. Newman","doi":"10.1145/2739999.2740000","DOIUrl":"https://doi.org/10.1145/2739999.2740000","url":null,"abstract":"The mobile Web has been a dominant channel for mobile users to fulfill information needs. Mobile users, however, also use other information channels such as the environment and personal sources. Through a 14-week exploratory diary study with ten mobile users, we found uncertainty with the accessibility of target information in an information channel to be a significant barrier for mobile users in using that channel to address an information need. This barrier is especially apparent when the information to be sought is for an upcoming activity or plan. In addition, we found that local infrastructural information such as information of services, resources, and directions within a specific point of interest was often perceived inaccessible or difficult to access on the Web, resulting in mobile users often preferring to use other information channels to obtain the information. We provide an explanation of the impact of such uncertainty using the cognitive maps framework from environmental cognition, and provide design implications on how Ubicomp systems can make local infrastructural information more accessible to mobile users.","PeriodicalId":115346,"journal":{"name":"Proceedings of the Third International Symposium of Chinese CHI","volume":"55 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120917233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mobile devices have become more and more useful in facilitating people's everyday information activities, especially personal information management (PIM). This research studies college students' PIM behavior by a mixed method approach of questionnaires and focus group interviews. Results show that college undergraduate and graduate students used smart devices frequently for various purposes, stored and managed all the kinds of information on smart devices. The organization, finding (and re-finding), and maintenance of information on smartphones diverge from desktop PCs and laptop significantly. However, current technologies do not seem to provide tools and mechanisms effective enough for mobile PIM.
{"title":"Personal Information Management Practices of Chinese College Students on their Smartphones","authors":"Pengyi Zhang, Chang Liu","doi":"10.1145/2739999.2740007","DOIUrl":"https://doi.org/10.1145/2739999.2740007","url":null,"abstract":"Mobile devices have become more and more useful in facilitating people's everyday information activities, especially personal information management (PIM). This research studies college students' PIM behavior by a mixed method approach of questionnaires and focus group interviews. Results show that college undergraduate and graduate students used smart devices frequently for various purposes, stored and managed all the kinds of information on smart devices. The organization, finding (and re-finding), and maintenance of information on smartphones diverge from desktop PCs and laptop significantly. However, current technologies do not seem to provide tools and mechanisms effective enough for mobile PIM.","PeriodicalId":115346,"journal":{"name":"Proceedings of the Third International Symposium of Chinese CHI","volume":"54 59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115138578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Many design studies were focused on how to form a card-based inspiration tool to support designers in the early stage of their design process. Although there is a great deal of studies on bridging the gap between design theories and instances through card-based design, however, there is little guidance, on how to pragmatically evaluate the usefulness. Using a set of deck, Interaction Tarot, based on the structure of Tarot, as an example, this paper argues that the Horizontal and Vertical Groundings (HG & VG), often used to generate intermediate-level knowledge such as strong concepts [12], can serve as analytical criteria for evaluating the quality of card-based design tool pragmatically. To address this, we conducted an HCI workshop with multiple brainstorming sessions with Interaction Tarot. The questionnaire data, tool usage, and interview accounts are categorized or quantified with respect to HG & VG, to ascertain how a card-based tool helps designers facilitate the design ideation in practical use. The findings could provide proper empirical evidence to demonstrate how design researchers use the set of two lenses (HG & VG) to have better understandings of a card-based tool in supporting the design inspiration.
{"title":"Understanding the Usefulness of Ideation Tools with the Grounding Lenses","authors":"David W. Chung, Rung-Huei Liang","doi":"10.1145/2739999.2740002","DOIUrl":"https://doi.org/10.1145/2739999.2740002","url":null,"abstract":"Many design studies were focused on how to form a card-based inspiration tool to support designers in the early stage of their design process. Although there is a great deal of studies on bridging the gap between design theories and instances through card-based design, however, there is little guidance, on how to pragmatically evaluate the usefulness. Using a set of deck, Interaction Tarot, based on the structure of Tarot, as an example, this paper argues that the Horizontal and Vertical Groundings (HG & VG), often used to generate intermediate-level knowledge such as strong concepts [12], can serve as analytical criteria for evaluating the quality of card-based design tool pragmatically. To address this, we conducted an HCI workshop with multiple brainstorming sessions with Interaction Tarot. The questionnaire data, tool usage, and interview accounts are categorized or quantified with respect to HG & VG, to ascertain how a card-based tool helps designers facilitate the design ideation in practical use. The findings could provide proper empirical evidence to demonstrate how design researchers use the set of two lenses (HG & VG) to have better understandings of a card-based tool in supporting the design inspiration.","PeriodicalId":115346,"journal":{"name":"Proceedings of the Third International Symposium of Chinese CHI","volume":"452 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134449507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Walking navigation systems are improving in accuracy, and user reliance on such systems is increasing. However, most of these systems rely on visual and audio information which may not always be convenient and sufficient in mobile conditions. At the same time, vibration feedback is gaining attention as desirable feedback for mobile situations because it can provide non-visual information to users and is less affected by outside environmental factors and thus not so susceptible to interference from extraneous environmental noise. This study investigates appropriate body parts for wearable vibration feedback for walking navigation systems. Based on the study results, suitable body parts and implications for designing wearable vibration systems are presented.
{"title":"Suitable Body Parts for Vibration Feedback in Walking Navigation Systems","authors":"Taiga Machida, Nem Khan Dim, Xiangshi Ren","doi":"10.1145/2739999.2740004","DOIUrl":"https://doi.org/10.1145/2739999.2740004","url":null,"abstract":"Walking navigation systems are improving in accuracy, and user reliance on such systems is increasing. However, most of these systems rely on visual and audio information which may not always be convenient and sufficient in mobile conditions. At the same time, vibration feedback is gaining attention as desirable feedback for mobile situations because it can provide non-visual information to users and is less affected by outside environmental factors and thus not so susceptible to interference from extraneous environmental noise. This study investigates appropriate body parts for wearable vibration feedback for walking navigation systems. Based on the study results, suitable body parts and implications for designing wearable vibration systems are presented.","PeriodicalId":115346,"journal":{"name":"Proceedings of the Third International Symposium of Chinese CHI","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122704266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hao-Chuan Wang, Tau-Heng Yeo, Syavash Nobarany, Gary Hsieh
Many online services serve diverse populations spanning many countries and cultures. Some of these services rely on user-generated ratings to curate and filter information, or to inform other users. However, little is known about how various cultural biases and cross-cultural differences affect such ratings. We studied how Indian and American workers on Mechanical Turk differ in their response styles by asking them to rate three products. We also explored several dimensions of cultural differences including social orientation (individualism vs. collectivism), social desirability, and thinking style (holistic vs. analytic). We found that Indian workers tended to use higher ratings on all items, including both product ratings and the different survey instruments. We discussed the implications for collecting ratings from culturally diverse populations, and for cross-cultural studies on Mechanical Turk.
{"title":"Problem with Cross-Cultural Comparison of User-Generated Ratings on Mechanical Turk","authors":"Hao-Chuan Wang, Tau-Heng Yeo, Syavash Nobarany, Gary Hsieh","doi":"10.1145/2739999.2740001","DOIUrl":"https://doi.org/10.1145/2739999.2740001","url":null,"abstract":"Many online services serve diverse populations spanning many countries and cultures. Some of these services rely on user-generated ratings to curate and filter information, or to inform other users. However, little is known about how various cultural biases and cross-cultural differences affect such ratings. We studied how Indian and American workers on Mechanical Turk differ in their response styles by asking them to rate three products. We also explored several dimensions of cultural differences including social orientation (individualism vs. collectivism), social desirability, and thinking style (holistic vs. analytic). We found that Indian workers tended to use higher ratings on all items, including both product ratings and the different survey instruments. We discussed the implications for collecting ratings from culturally diverse populations, and for cross-cultural studies on Mechanical Turk.","PeriodicalId":115346,"journal":{"name":"Proceedings of the Third International Symposium of Chinese CHI","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129934722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yingxue Zhang, Siqi Liu, Lu Tao, Chun Yu, Yuanchun Shi, Ying-Qing Xu
The Guqin, a seven-stringed fretless zither, is the most representative traditional musical instrument in China. However, the complexity of its unique notation and theory has severely limited its popularity in the modern world. With the goal of providing an easy and effective way of learning Guqin, we have created an interactive learning system called ChinAR which employs augmented reality. We have made three main contributions in this paper: (1) a systematic method to design for instrumental learning combing eastern and western musical concepts; (2) a primary validation of the effect of augmented reality in facilitating learning of the Chinese Guqin (3) a natural user interface for the learning system applying gesture detection. The result of user study shows our design is helpful in providing better learning experience and enhancing performance and memorization with markedly less time spent learning. This work shows how a new interface helps promote the use of heritage instruments and culture.
{"title":"ChinAR: Facilitating Chinese Guqin Learning through Interactive Projected Augmentation","authors":"Yingxue Zhang, Siqi Liu, Lu Tao, Chun Yu, Yuanchun Shi, Ying-Qing Xu","doi":"10.1145/2739999.2740003","DOIUrl":"https://doi.org/10.1145/2739999.2740003","url":null,"abstract":"The Guqin, a seven-stringed fretless zither, is the most representative traditional musical instrument in China. However, the complexity of its unique notation and theory has severely limited its popularity in the modern world. With the goal of providing an easy and effective way of learning Guqin, we have created an interactive learning system called ChinAR which employs augmented reality. We have made three main contributions in this paper: (1) a systematic method to design for instrumental learning combing eastern and western musical concepts; (2) a primary validation of the effect of augmented reality in facilitating learning of the Chinese Guqin (3) a natural user interface for the learning system applying gesture detection. The result of user study shows our design is helpful in providing better learning experience and enhancing performance and memorization with markedly less time spent learning. This work shows how a new interface helps promote the use of heritage instruments and culture.","PeriodicalId":115346,"journal":{"name":"Proceedings of the Third International Symposium of Chinese CHI","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126962291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shih-Yao Lin, Chuen-Kai Shie, Chu-Song Chen, Y. Hung
This paper aims at improving the recognition of 3D push-hand gesture, which can trigger a target selection command with our hands in the air. Although general 3D push-gesture recognizers have been developed and widely used for this purpose, a severe weakness of the current push-recognizers is that they are instable to askew-pushing problems that happen frequently in practice. It is because that the push trajectory of our hand is not always a straightforward movement due to the anatomy of human, but would vary depending on the location of the target relative to the users. We explore the 3D palm trajectories of push-gestures in different locations around the user, and propose a 3D push-gesture modeling approach by learning 3D palm trajectories to solve the askew-click problem. We evaluate the proposed recognizers on a click-gesture dataset, and compare it with the prior arts of forward-push recognizers. Experimental results demonstrate that our approach achieves higher recognition accuracies than existing approaches.
{"title":"Freehand Push-Gesture Recognition via 3D Palm Trajectory Modeling","authors":"Shih-Yao Lin, Chuen-Kai Shie, Chu-Song Chen, Y. Hung","doi":"10.1145/2739999.2740005","DOIUrl":"https://doi.org/10.1145/2739999.2740005","url":null,"abstract":"This paper aims at improving the recognition of 3D push-hand gesture, which can trigger a target selection command with our hands in the air. Although general 3D push-gesture recognizers have been developed and widely used for this purpose, a severe weakness of the current push-recognizers is that they are instable to askew-pushing problems that happen frequently in practice. It is because that the push trajectory of our hand is not always a straightforward movement due to the anatomy of human, but would vary depending on the location of the target relative to the users. We explore the 3D palm trajectories of push-gestures in different locations around the user, and propose a 3D push-gesture modeling approach by learning 3D palm trajectories to solve the askew-click problem. We evaluate the proposed recognizers on a click-gesture dataset, and compare it with the prior arts of forward-push recognizers. Experimental results demonstrate that our approach achieves higher recognition accuracies than existing approaches.","PeriodicalId":115346,"journal":{"name":"Proceedings of the Third International Symposium of Chinese CHI","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115968152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proceedings of the Third International Symposium of Chinese CHI","authors":"","doi":"10.1145/2739999","DOIUrl":"https://doi.org/10.1145/2739999","url":null,"abstract":"","PeriodicalId":115346,"journal":{"name":"Proceedings of the Third International Symposium of Chinese CHI","volume":"76 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123221493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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