The home is a hub of information and entertainment activities. It typically contains a variety of media devices ranging from TV screens to mobile devices, work-oriented devices like PCs or laptops that can be also used as entertainment devices and devices that might have exclusively an entertainment purpose. Understanding the context of use in the home plays a central role for the design and development of new interactive services and devices. A comprehensive understanding of how people interact in their living room using remote controls will help to identify which functions to support in future interaction concepts and how to support the most frequent usage scenarios. This paper describes an approach to understand interaction in the living room, by exploiting the fact that today most of the devices are controlled by infrared remote controls. Each of these remote controls is sending a distinct pattern for each button pressed, which we are recording. We show that interaction in the living room can be inferred from recorded infrared signals. Furthermore, temporal graphs of remote control usage, grouped by functional related buttons can be produced, allowing a description of the users behavior. We also provide hints for simplifying the physical user interface, by eliminating rarely or even unused buttons.
{"title":"Breaking myths: inferring interaction from infrared signals","authors":"T. Mirlacher, R. Bernhaupt","doi":"10.1145/2000119.2000146","DOIUrl":"https://doi.org/10.1145/2000119.2000146","url":null,"abstract":"The home is a hub of information and entertainment activities. It typically contains a variety of media devices ranging from TV screens to mobile devices, work-oriented devices like PCs or laptops that can be also used as entertainment devices and devices that might have exclusively an entertainment purpose. Understanding the context of use in the home plays a central role for the design and development of new interactive services and devices.\u0000 A comprehensive understanding of how people interact in their living room using remote controls will help to identify which functions to support in future interaction concepts and how to support the most frequent usage scenarios. This paper describes an approach to understand interaction in the living room, by exploiting the fact that today most of the devices are controlled by infrared remote controls. Each of these remote controls is sending a distinct pattern for each button pressed, which we are recording.\u0000 We show that interaction in the living room can be inferred from recorded infrared signals. Furthermore, temporal graphs of remote control usage, grouped by functional related buttons can be produced, allowing a description of the users behavior. We also provide hints for simplifying the physical user interface, by eliminating rarely or even unused buttons.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133800242","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}
D. Vega-Oliveros, L. S. Oliveira, D. Martins, M. G. Pimentel
When generating records from captured meetings, such as video lectures or distance education activities supported by synchronous communication tools, the alternative usually adopted is to generate a linear video with the contents of the exchanged media. Such approach limits the review of the meeting, reducing it to watching a video using the traditional time-based video controls. In other scenarios, the literature reports the use of media-based operators, like ink-based and audio-based operators, that allow the indexing of points of interaction in the resulting document. In this paper we tackle the issue of automatically generating document-based browsers by means of several types of indexes captured during recording and post-production phases of the multimedia production process. These indexes are used to provide an interface focused on menu navigation to create compositions of logical operators in order to improve the access to points of interest by generating interactive timelines. Our document-centric approach tackles challenges for meeting browsers: in particular, the approach enables the efficient review of meeting recordings via a constrained device such as a TV set-top box and a remote control. In terms of evaluation, we conducted two user studies in order to verify our model. Overall, the evaluation results suggested that the approach provided a satisfactory level of usability and that users understood the proposed menu navigation approach to review the recorded sessions.
{"title":"Viewing by interactions: media-oriented operators for reviewing recorded sessions on tv","authors":"D. Vega-Oliveros, L. S. Oliveira, D. Martins, M. G. Pimentel","doi":"10.1145/2000119.2000163","DOIUrl":"https://doi.org/10.1145/2000119.2000163","url":null,"abstract":"When generating records from captured meetings, such as video lectures or distance education activities supported by synchronous communication tools, the alternative usually adopted is to generate a linear video with the contents of the exchanged media. Such approach limits the review of the meeting, reducing it to watching a video using the traditional time-based video controls. In other scenarios, the literature reports the use of media-based operators, like ink-based and audio-based operators, that allow the indexing of points of interaction in the resulting document. In this paper we tackle the issue of automatically generating document-based browsers by means of several types of indexes captured during recording and post-production phases of the multimedia production process. These indexes are used to provide an interface focused on menu navigation to create compositions of logical operators in order to improve the access to points of interest by generating interactive timelines. Our document-centric approach tackles challenges for meeting browsers: in particular, the approach enables the efficient review of meeting recordings via a constrained device such as a TV set-top box and a remote control. In terms of evaluation, we conducted two user studies in order to verify our model. Overall, the evaluation results suggested that the approach provided a satisfactory level of usability and that users understood the proposed menu navigation approach to review the recorded sessions.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130566954","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}
Luiz Eduardo da Silva Pinto, Fabio Gomes de Souza, V. Lucena
In emerging countries the primary way of communication and entertainment is broadcast TV. Interactive TV content providers, especially the ones aiming handheld devices, can take advantage of SMS (Short Message Service) as a mechanism of returning channel for interacting with a televiewer. On analog TV systems, SMS messages are often used as a form of interaction, but in order to interact with televised programming the televiewer needs, in addition to his TV, a mobile phone so that he can send a text message to the number reported by the TV program. In this scenario two situations may occur: (1) the user may send an incorrect message to the right number, or (2) the user may send the right message to an incorrect number. In both cases he will be charged for the message he sent without knowing he is not interacting with the program which he desires. This problem can be avoided on digital TV systems, with support for interactive channel, mainly in 1-seg transmission dedicated to portable receivers. This paper aims to show the feasibility of using SMS text messaging as an alternative to the interactive channel in the context of digital TV.
{"title":"SMS as interactive channel for portable digital TV receivers","authors":"Luiz Eduardo da Silva Pinto, Fabio Gomes de Souza, V. Lucena","doi":"10.1145/2000119.2000160","DOIUrl":"https://doi.org/10.1145/2000119.2000160","url":null,"abstract":"In emerging countries the primary way of communication and entertainment is broadcast TV. Interactive TV content providers, especially the ones aiming handheld devices, can take advantage of SMS (Short Message Service) as a mechanism of returning channel for interacting with a televiewer. On analog TV systems, SMS messages are often used as a form of interaction, but in order to interact with televised programming the televiewer needs, in addition to his TV, a mobile phone so that he can send a text message to the number reported by the TV program. In this scenario two situations may occur: (1) the user may send an incorrect message to the right number, or (2) the user may send the right message to an incorrect number. In both cases he will be charged for the message he sent without knowing he is not interacting with the program which he desires. This problem can be avoided on digital TV systems, with support for interactive channel, mainly in 1-seg transmission dedicated to portable receivers. This paper aims to show the feasibility of using SMS text messaging as an alternative to the interactive channel in the context of digital TV.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116796083","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}
Recently, social TVs and personalize broadcasting services have taken place on interactive television services. While traditional television services do not support multi camera angles or views on sports live, multiple angle of view services have been studied such as a free view point TV, a panorama TV, and multi-view or multi-angle TV. On the internet-based broadcasting system, users face a zapping delay when they change channel or view. If mobile devices, IPTVs, and PCs are considered for these services, the zapping delay problem is a critical issue for user experience. In this paper, a zapping delay reduction method is proposed using a segmentation method of H.264 standard stream and thumbnails of streams for multi-angle broadcasting systems. Since the proposed system reduces a zapping delay between multi-angles, users have no sense of difference with traditional television services.
{"title":"Zapping delay reduction method for sports live with multi-angle on smart tv","authors":"Jaewook Yoo, Suhyun Kim, Dongmahn Seo","doi":"10.1145/2000119.2000128","DOIUrl":"https://doi.org/10.1145/2000119.2000128","url":null,"abstract":"Recently, social TVs and personalize broadcasting services have taken place on interactive television services. While traditional television services do not support multi camera angles or views on sports live, multiple angle of view services have been studied such as a free view point TV, a panorama TV, and multi-view or multi-angle TV. On the internet-based broadcasting system, users face a zapping delay when they change channel or view. If mobile devices, IPTVs, and PCs are considered for these services, the zapping delay problem is a critical issue for user experience. In this paper, a zapping delay reduction method is proposed using a segmentation method of H.264 standard stream and thumbnails of streams for multi-angle broadcasting systems. Since the proposed system reduces a zapping delay between multi-angles, users have no sense of difference with traditional television services.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122216037","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}
K. Chorianopoulos, Ioannis Leftheriotis, Chrysoula Gkonela
In this paper, we present a system that facilitates the analysis of user activity within a web video. Previous research in user-based techniques has assumed an extra effort from the users, such as video replies, comments, tags, and annotations. We have developed and evaluated the SocialSkip system, which improves sense making of web videos by visualizing the simplest form of user interactions with video, such as pause, and seek. In contrast to previous stand-alone implementations, the SocialSkip system employs a web-video player and cloud-based resources (application logic, database, content). The system was validated with two user studies, which provided several hundreds of user interactions with five types of web video (sports, comedy, lecture, documentary, how-to). We found that seeking activity within web video is reversely proportional to how interesting the video is. Moreover, we suggest that if the users are actively seeking for information within a video (e.g., lecture, how-to), then the user activity graph could be associated with the semantics of the video. Finally, SocialSkip provides an open architecture for collaborative contributions to the analysis of the user activity data, in a fashion similar to the TRECVID workshop series.
{"title":"SocialSkip: pragmatic understanding within web video","authors":"K. Chorianopoulos, Ioannis Leftheriotis, Chrysoula Gkonela","doi":"10.1145/2000119.2000124","DOIUrl":"https://doi.org/10.1145/2000119.2000124","url":null,"abstract":"In this paper, we present a system that facilitates the analysis of user activity within a web video. Previous research in user-based techniques has assumed an extra effort from the users, such as video replies, comments, tags, and annotations. We have developed and evaluated the SocialSkip system, which improves sense making of web videos by visualizing the simplest form of user interactions with video, such as pause, and seek. In contrast to previous stand-alone implementations, the SocialSkip system employs a web-video player and cloud-based resources (application logic, database, content). The system was validated with two user studies, which provided several hundreds of user interactions with five types of web video (sports, comedy, lecture, documentary, how-to). We found that seeking activity within web video is reversely proportional to how interesting the video is. Moreover, we suggest that if the users are actively seeking for information within a video (e.g., lecture, how-to), then the user activity graph could be associated with the semantics of the video. Finally, SocialSkip provides an open architecture for collaborative contributions to the analysis of the user activity data, in a fashion similar to the TRECVID workshop series.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123357437","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}
Jean-Claude Dufourd, Stéphane Thomas, C. Concolato
As the newly created standard for interactive television, HbbTV (for Hybrid broadband broadcast TV), is getting traction, the problem of recording TV services takes on new dimensions with interactive and hybrid services. This paper explores the different issues raised by the recording and on-demand playback of broadcast HbbTV services containing interactive applications. Adaptive streaming tools provide part of the solution. Guidelines to application developers and small extensions to HbbTV are also proposed. We describe possible implementations based on MPEG-2 TS and discuss an alternative based on ISOBMFF.
{"title":"Recording and delivery of HbbTV applications","authors":"Jean-Claude Dufourd, Stéphane Thomas, C. Concolato","doi":"10.1145/2000119.2000129","DOIUrl":"https://doi.org/10.1145/2000119.2000129","url":null,"abstract":"As the newly created standard for interactive television, HbbTV (for Hybrid broadband broadcast TV), is getting traction, the problem of recording TV services takes on new dimensions with interactive and hybrid services. This paper explores the different issues raised by the recording and on-demand playback of broadcast HbbTV services containing interactive applications. Adaptive streaming tools provide part of the solution. Guidelines to application developers and small extensions to HbbTV are also proposed. We describe possible implementations based on MPEG-2 TS and discuss an alternative based on ISOBMFF.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117313777","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}
Recently, the choices to consume audiovisual content have increased steadily. Content is now delivered through various digital channels and is played back by an abundance of devices. Moreover, the number of spatial and social contexts that afford consumption is equally increasing. The question now arises how these three diversifying components(content, device and context) interact with each other. Therefore, we subscribe to the concept of a triple articulation of media technologies that is rooted within domestication theory. It postulates that media technologies are meaningful in their physical presence (object), their capabilities to transfer meaningful messages (media text) and their contextual encapsulation (context). However, the question remains whether such a three-fold approach is manageable and relevant. In this paper, based on an empirical multi-method study, we demonstrate the practical relevance of the triple articulation concept in audiovisual media consumption within the context of convergence. Moreover, we discuss its implications and formulate recommendations concerning the adoption of this perspective in future research on audiovisual media consumption. The results show that all three articulations bear specific meanings. Moreover, abundant evidence is found for all three articulations to contribute independently to the overall meaning of audiovisual consumption. We conclude that the triple articulation concept within domestication theory has the potential to serve as a framework to study relevant factors in the formation and exercise of media habits and everyday routines.
{"title":"Audiovisual consumption as the interplay of objects, texts and contexts","authors":"Cédric Courtois, Pieter Verdegem, L. Marez","doi":"10.1145/2000119.2000136","DOIUrl":"https://doi.org/10.1145/2000119.2000136","url":null,"abstract":"Recently, the choices to consume audiovisual content have increased steadily. Content is now delivered through various digital channels and is played back by an abundance of devices. Moreover, the number of spatial and social contexts that afford consumption is equally increasing.\u0000 The question now arises how these three diversifying components(content, device and context) interact with each other. Therefore, we subscribe to the concept of a triple articulation of media technologies that is rooted within domestication theory. It postulates that media technologies are meaningful in their physical presence (object), their capabilities to transfer meaningful messages (media text) and their contextual encapsulation (context). However, the question remains whether such a three-fold approach is manageable and relevant.\u0000 In this paper, based on an empirical multi-method study, we demonstrate the practical relevance of the triple articulation concept in audiovisual media consumption within the context of convergence. Moreover, we discuss its implications and formulate recommendations concerning the adoption of this perspective in future research on audiovisual media consumption. The results show that all three articulations bear specific meanings. Moreover, abundant evidence is found for all three articulations to contribute independently to the overall meaning of audiovisual consumption. We conclude that the triple articulation concept within domestication theory has the potential to serve as a framework to study relevant factors in the formation and exercise of media habits and everyday routines.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116007479","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}
Niloofar Dezfuli, Mohammadreza Khalilbeigi, M. Mühlhäuser, D. Geerts
This paper presents an explorative study investigating the social video watching experience. We particularly investigate the role of interpersonal relationships on social interaction while watching and its link to video genres. The results reveal that the desired relationship for social interactions around video content does not solely depend on strong relationship between viewers. Moreover, program genre plays an important role on social structure preferences for watching television as a shared activity. These results can have considerable impact on designing social interactive television systems to enhance social interactions between remote viewers.
{"title":"A study on interpersonal relationships for social interactive television","authors":"Niloofar Dezfuli, Mohammadreza Khalilbeigi, M. Mühlhäuser, D. Geerts","doi":"10.1145/2000119.2000123","DOIUrl":"https://doi.org/10.1145/2000119.2000123","url":null,"abstract":"This paper presents an explorative study investigating the social video watching experience. We particularly investigate the role of interpersonal relationships on social interaction while watching and its link to video genres. The results reveal that the desired relationship for social interactions around video content does not solely depend on strong relationship between viewers. Moreover, program genre plays an important role on social structure preferences for watching television as a shared activity. These results can have considerable impact on designing social interactive television systems to enhance social interactions between remote viewers.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130644761","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}
While Mobile TV has been proposed as a killer application for telecom operators, market success has so far been limited. While UMTS and DVB-H offered insufficient quality mobile TV services and/or lack of interesting content, WiFi and LTE based smartphone apps may finally deliver the promise. In this paper, we report on a field study that has been conducted on developing and testing a mobile TV app for smartphones. The application offers not only mobile TV content, but also the ability to scroll through broadcasts seamlessly and share fragments with social peers. We collected unique log data on usage of the mobile TV app by a group of stakeholders in the media sector. We found that mobile TV is mainly used for short viewing sessions (i.e. on average three minutes), but that there are also great differences between users. In a second study, we surveyed the potential interest of the broader public in mobile TV in general. We found that users are only willing to adopt mobile TV if they are convinced that it would replace their current use of digital or internet TV.
{"title":"Mobile TV: the search for a holy grail that isn't","authors":"H. Bouwman, M. D. Reuver, S. Stalman","doi":"10.1145/2000119.2000158","DOIUrl":"https://doi.org/10.1145/2000119.2000158","url":null,"abstract":"While Mobile TV has been proposed as a killer application for telecom operators, market success has so far been limited. While UMTS and DVB-H offered insufficient quality mobile TV services and/or lack of interesting content, WiFi and LTE based smartphone apps may finally deliver the promise. In this paper, we report on a field study that has been conducted on developing and testing a mobile TV app for smartphones. The application offers not only mobile TV content, but also the ability to scroll through broadcasts seamlessly and share fragments with social peers. We collected unique log data on usage of the mobile TV app by a group of stakeholders in the media sector. We found that mobile TV is mainly used for short viewing sessions (i.e. on average three minutes), but that there are also great differences between users. In a second study, we surveyed the potential interest of the broader public in mobile TV in general. We found that users are only willing to adopt mobile TV if they are convinced that it would replace their current use of digital or internet TV.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124610221","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}
This paper presents a user study investigating the acceptability of channel switching delays on mobile television systems. The authors first review the previous work in the area, then propose a study design and present results from its implementation, focusing on the overall acceptability threshold as well as three potential effect factors: the transition type, the test environment and the audiovisual content. The results show that delays longer than 5.7 seconds annoyed test participants, and that the transition type had a significant impact on the rating of channel switching delays. However, neither the test environment nor the audiovisual content influenced the ratings significantly. Finally, a discussion of these results and directions for future research are proposed.
{"title":"Acceptable channel switching delays for mobile TV","authors":"Alexandre Fleury, J. Pedersen, L. B. Larsen","doi":"10.1145/2000119.2000159","DOIUrl":"https://doi.org/10.1145/2000119.2000159","url":null,"abstract":"This paper presents a user study investigating the acceptability of channel switching delays on mobile television systems. The authors first review the previous work in the area, then propose a study design and present results from its implementation, focusing on the overall acceptability threshold as well as three potential effect factors: the transition type, the test environment and the audiovisual content. The results show that delays longer than 5.7 seconds annoyed test participants, and that the transition type had a significant impact on the rating of channel switching delays. However, neither the test environment nor the audiovisual content influenced the ratings significantly. Finally, a discussion of these results and directions for future research are proposed.","PeriodicalId":166630,"journal":{"name":"European Conference on Interactive TV","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124326746","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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