Contributions from the crowd are not just content-sustainable systems require ongoing behind-the-scenes infrastructural work. In this paper, I explore potential strategies for motivating volunteer contributions to large-scale collaborative projects when volunteer contributions are procedural in nature and largely invisible in the published project. I use a user-driven classification system for a large, established, and growing fanfiction collection as an example of a successful project of this type. I compare the challenges and possibilities to those established in the study of open source, wiki, and citizen science projects, which share with classification design a need for distributed human contributions to procedural tasks. Textual analysis of recruiting and training documents, informed by prolonged engagement in the community, reveals strategies that diverge from other HCI research on motivation, such as a focus on work rather than fun and insider rather than public recognition.
{"title":"Motivating Invisible Contributions: Framing Volunteer Classification Design in a Fanfiction Repository","authors":"J. Bullard","doi":"10.1145/2957276.2957295","DOIUrl":"https://doi.org/10.1145/2957276.2957295","url":null,"abstract":"Contributions from the crowd are not just content-sustainable systems require ongoing behind-the-scenes infrastructural work. In this paper, I explore potential strategies for motivating volunteer contributions to large-scale collaborative projects when volunteer contributions are procedural in nature and largely invisible in the published project. I use a user-driven classification system for a large, established, and growing fanfiction collection as an example of a successful project of this type. I compare the challenges and possibilities to those established in the study of open source, wiki, and citizen science projects, which share with classification design a need for distributed human contributions to procedural tasks. Textual analysis of recruiting and training documents, informed by prolonged engagement in the community, reveals strategies that diverge from other HCI research on motivation, such as a focus on work rather than fun and insider rather than public recognition.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122951860","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}
Memory is shaped by the media in which it is communicated (van Dijck, 2007). In a world where people live enmeshed with computing technologies, there are myriad opportunities to enrich and enhance everyday life with new kinds of memory. In my dissertation research, I employ a mixed methods interpretivist approach to investigate how people relate to and revisit memories of their past, how families collectively interact with shared memory, and how pervasive "ubicomp" technologies can be designed to support and enhance the social activities of sharing family memory across generations.
{"title":"Designing Social Memory Artifacts in a Smart Home","authors":"Jasmine Jones","doi":"10.1145/2957276.2997021","DOIUrl":"https://doi.org/10.1145/2957276.2997021","url":null,"abstract":"Memory is shaped by the media in which it is communicated (van Dijck, 2007). In a world where people live enmeshed with computing technologies, there are myriad opportunities to enrich and enhance everyday life with new kinds of memory. In my dissertation research, I employ a mixed methods interpretivist approach to investigate how people relate to and revisit memories of their past, how families collectively interact with shared memory, and how pervasive \"ubicomp\" technologies can be designed to support and enhance the social activities of sharing family memory across generations.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124876883","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}
Leah M. Scolere, E. Baumer, Lindsay Reynolds, Geri Gay
To examine the processes by which appropriation happens around an interactive art installation in an organizational context, this paper presents a qualitative, longitudinal study of an interactive art installation called mood.cloud. While designed to collect and to visually display building occupants' collective emotion, the installation was not necessarily used or interpreted in this way. Instead, building occupants saw the sensory experience of mood.cloud and the ability to change the display as a way to influence their own feelings, the feelings of others, and the overall workplace ambience. We found that interaction with mood.cloud fostered reflection about the relationship between the individual and the larger collective that the person is a part of. This relationship, between appropriation for individual benefit and appropriation for the benefit of others, afforded participants the opportunity to become more aware of their own contribution as part of a larger community. These findings suggest an opportunity to design systems around the interplay between appropriation for the individual and appropriation for the community.
{"title":"Building Mood, Building Community: Usage Patterns of an Interactive Art Installation","authors":"Leah M. Scolere, E. Baumer, Lindsay Reynolds, Geri Gay","doi":"10.1145/2957276.2957291","DOIUrl":"https://doi.org/10.1145/2957276.2957291","url":null,"abstract":"To examine the processes by which appropriation happens around an interactive art installation in an organizational context, this paper presents a qualitative, longitudinal study of an interactive art installation called mood.cloud. While designed to collect and to visually display building occupants' collective emotion, the installation was not necessarily used or interpreted in this way. Instead, building occupants saw the sensory experience of mood.cloud and the ability to change the display as a way to influence their own feelings, the feelings of others, and the overall workplace ambience. We found that interaction with mood.cloud fostered reflection about the relationship between the individual and the larger collective that the person is a part of. This relationship, between appropriation for individual benefit and appropriation for the benefit of others, afforded participants the opportunity to become more aware of their own contribution as part of a larger community. These findings suggest an opportunity to design systems around the interplay between appropriation for the individual and appropriation for the community.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116498250","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}
User appropriation can be immensely helpful to bootstrap emerging technologies; but how do new and lesser known technologies attract these earliest adopters? This paper investigates user appropriation of emerging computing technologies, by focusing on Bitcoin, a digital monetary system supported by a peer-to-peer network of computing devices. We conducted in-depth interviews with sixteen Bitcoin community participants in Hong Kong, Singapore, and Baltimore. We describe user appropriation in this case of Bitcoin as a sociocultural journey-from encounter, research and learning, to socialization. We contribute the concept of cultural affinities, including conceptual, contextual and social dimensions, as important mediators leading to early-stage user appropriation.
{"title":"\"Hey, I know what this is!\": Cultural Affinities and Early Stage Appropriation of the Emerging Bitcoin Technology","authors":"Y. Kow, Sharon Xianghua Ding","doi":"10.1145/2957276.2957279","DOIUrl":"https://doi.org/10.1145/2957276.2957279","url":null,"abstract":"User appropriation can be immensely helpful to bootstrap emerging technologies; but how do new and lesser known technologies attract these earliest adopters? This paper investigates user appropriation of emerging computing technologies, by focusing on Bitcoin, a digital monetary system supported by a peer-to-peer network of computing devices. We conducted in-depth interviews with sixteen Bitcoin community participants in Hong Kong, Singapore, and Baltimore. We describe user appropriation in this case of Bitcoin as a sociocultural journey-from encounter, research and learning, to socialization. We contribute the concept of cultural affinities, including conceptual, contextual and social dimensions, as important mediators leading to early-stage user appropriation.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133438039","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}
Group editing is a crucial feature for many end-user applications. It requires high responsiveness, which can be provided only by optimistic replication algorithms, which come in two classes: classical Operational Transformation (OT), or more recent Conflict-Free Replicated Data Types (CRDTs). Typically, CRDTs perform better on downstream operations, i.e., when merging concurrent operations than OT, because the former have logarithmic complexity and the latter quadratic. However, CRDTs are often less responsive, because their upstream complexity is linear. To improve this, this paper proposes to interpose an auxiliary data structure, called the identifier data structure in front of the base CRDT. The identifier structure ensures logarithmic complexity and does not require replication or synchronization. Combined with a block-wise storage approach, this approach improves upstream execution time by several orders of magnitude, with negligeable impact on memory occupation, network bandwidth, and downstream execution performance.
{"title":"High Responsiveness for Group Editing CRDTs","authors":"Loïck Briot, Pascal Urso, M. Shapiro","doi":"10.1145/2957276.2957300","DOIUrl":"https://doi.org/10.1145/2957276.2957300","url":null,"abstract":"Group editing is a crucial feature for many end-user applications. It requires high responsiveness, which can be provided only by optimistic replication algorithms, which come in two classes: classical Operational Transformation (OT), or more recent Conflict-Free Replicated Data Types (CRDTs). Typically, CRDTs perform better on downstream operations, i.e., when merging concurrent operations than OT, because the former have logarithmic complexity and the latter quadratic. However, CRDTs are often less responsive, because their upstream complexity is linear. To improve this, this paper proposes to interpose an auxiliary data structure, called the identifier data structure in front of the base CRDT. The identifier structure ensures logarithmic complexity and does not require replication or synchronization. Combined with a block-wise storage approach, this approach improves upstream execution time by several orders of magnitude, with negligeable impact on memory occupation, network bandwidth, and downstream execution performance.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133761689","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}
A. Mostafa, K. Quinn, John C. Tang, Gina Venolia, William A. Hamilton
Live streaming is becoming a popular way to share experiences with others. When concurrent video streams of the same event are available, it can be challenging to decide which streams to view and to manage the experience across multiple streams. We designed and developed the SocialStreamViewer prototype that aggregates multiple streams from an event and visualizes others' viewing, hearting, and text chat activity. It also enables users to replay portions of streams. A lab study of SocialStreamViewer explored how people experience an event remotely through multiple streams, and how they use social signals from other viewers' activities. We found that 1) providing multiple streams is beneficial; 2) replaying back in time is highly valued since it helps ensure that users will not miss interesting content; and 3) visualizing other viewers' activities helps users decide which stream to watch.
{"title":"SocialStreamViewer: Guiding the Viewer Experience of Multiple Streams of an Event","authors":"A. Mostafa, K. Quinn, John C. Tang, Gina Venolia, William A. Hamilton","doi":"10.1145/2957276.2957286","DOIUrl":"https://doi.org/10.1145/2957276.2957286","url":null,"abstract":"Live streaming is becoming a popular way to share experiences with others. When concurrent video streams of the same event are available, it can be challenging to decide which streams to view and to manage the experience across multiple streams. We designed and developed the SocialStreamViewer prototype that aggregates multiple streams from an event and visualizes others' viewing, hearting, and text chat activity. It also enables users to replay portions of streams. A lab study of SocialStreamViewer explored how people experience an event remotely through multiple streams, and how they use social signals from other viewers' activities. We found that 1) providing multiple streams is beneficial; 2) replaying back in time is highly valued since it helps ensure that users will not miss interesting content; and 3) visualizing other viewers' activities helps users decide which stream to watch.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134133152","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}
Globally distributed collaboration requires cooperation and trust among team members. Current research suggests that informal, non-work related communication plays a positive role in developing cooperation and trust. However, the way in which teams connect, i.e. via a social network, greatly influences cooperation and trust development. The study described in this paper employs agent-based modeling and simulation to investigate the cooperation and trust development with the presence of informal, non-work-related communication in networked teams. Leveraging game theory, we present a model of how an individual makes strategic decisions when interacting with her social network neighbors. The results of simulation on a pseudo scale-free network reveal the conditions under which informal communication has an impact, how different network degree distributions affect efficient trust and cooperation development, and how it is possible to "seed" trust and cooperation development amongst individuals in specific network positions. This study is the first to use agent-based modeling and simulation to examine the relationships between scale-free networks' topological features (degree distribution), cooperation and trust development, and informal communication.
{"title":"Exploring Trust and Cooperation Development with Agent-Based Simulation in A Pseudo Scale-free Network","authors":"Yi Wang, D. Redmiles","doi":"10.1145/2957276.2957305","DOIUrl":"https://doi.org/10.1145/2957276.2957305","url":null,"abstract":"Globally distributed collaboration requires cooperation and trust among team members. Current research suggests that informal, non-work related communication plays a positive role in developing cooperation and trust. However, the way in which teams connect, i.e. via a social network, greatly influences cooperation and trust development. The study described in this paper employs agent-based modeling and simulation to investigate the cooperation and trust development with the presence of informal, non-work-related communication in networked teams. Leveraging game theory, we present a model of how an individual makes strategic decisions when interacting with her social network neighbors. The results of simulation on a pseudo scale-free network reveal the conditions under which informal communication has an impact, how different network degree distributions affect efficient trust and cooperation development, and how it is possible to \"seed\" trust and cooperation development amongst individuals in specific network positions. This study is the first to use agent-based modeling and simulation to examine the relationships between scale-free networks' topological features (degree distribution), cooperation and trust development, and informal communication.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117213330","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}
Cloud storage is widely used to share and collaborate on files over the Internet; consistency maintenance of replicated files in the face of concurrency is a major challenge. In this paper, we present a novel CSOT (Cloud Storage Operational Transformation) solution to support real-time file synchronization in front-end cloud storage and achieve consistent and desirable concurrent operation combined-effects that cannot be fully achieved by any existing cloud storage systems. We have formally verified algorithmic correctness of CSOT, built a proof-of-concept implementation, and experimentally compared results produced by CSOT and three industrial cloud storage systems, Microsoft OneDrive, Google Drive, and Dropbox, under the same collection of concurrent operation testing cases. CSOT is the first to extend OT consistency maintenance capability to shared workspaces in cloud storage and contributes to advancement of cloud-based collaboration technologies.
{"title":"Operational Transformation for Real-time Synchronization of Shared Workspace in Cloud Storage","authors":"Agustina Ng, Chengzheng Sun","doi":"10.1145/2957276.2957278","DOIUrl":"https://doi.org/10.1145/2957276.2957278","url":null,"abstract":"Cloud storage is widely used to share and collaborate on files over the Internet; consistency maintenance of replicated files in the face of concurrency is a major challenge. In this paper, we present a novel CSOT (Cloud Storage Operational Transformation) solution to support real-time file synchronization in front-end cloud storage and achieve consistent and desirable concurrent operation combined-effects that cannot be fully achieved by any existing cloud storage systems. We have formally verified algorithmic correctness of CSOT, built a proof-of-concept implementation, and experimentally compared results produced by CSOT and three industrial cloud storage systems, Microsoft OneDrive, Google Drive, and Dropbox, under the same collection of concurrent operation testing cases. CSOT is the first to extend OT consistency maintenance capability to shared workspaces in cloud storage and contributes to advancement of cloud-based collaboration technologies.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115986911","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}
Andrea Forte, Denise E. Agosto, Michael Dickard, Rachel M. Magee
In this multiple case study of two high schools in the USA, we use interview and focus group data to examine the experiences of teen-age students when they friend and interact with teachers, high school administrators, parents, and other adults on social network sites (SNS). We identify several types of teen-adult interactions on SNS, including finding information, community building, and mentoring online skills, and we connect these findings to literature on homophily and context collapse. We also report on social media norms and policies of the schools where our fieldwork was conducted. We discuss how organizational policies surrounding social media use can inhibit or reinforce the development of age-homophilous networks and thereby encourage or reduce opportunities for teen-adult interaction online. Finally, we conclude that boundary work associated with managing these complex social experiences, though awkward at times, can be an important learning experience for adults and young people alike.
{"title":"The Strength of Awkward Ties: Online Interactions between High School Students and Adults","authors":"Andrea Forte, Denise E. Agosto, Michael Dickard, Rachel M. Magee","doi":"10.1145/2957276.2957282","DOIUrl":"https://doi.org/10.1145/2957276.2957282","url":null,"abstract":"In this multiple case study of two high schools in the USA, we use interview and focus group data to examine the experiences of teen-age students when they friend and interact with teachers, high school administrators, parents, and other adults on social network sites (SNS). We identify several types of teen-adult interactions on SNS, including finding information, community building, and mentoring online skills, and we connect these findings to literature on homophily and context collapse. We also report on social media norms and policies of the schools where our fieldwork was conducted. We discuss how organizational policies surrounding social media use can inhibit or reinforce the development of age-homophilous networks and thereby encourage or reduce opportunities for teen-adult interaction online. Finally, we conclude that boundary work associated with managing these complex social experiences, though awkward at times, can be an important learning experience for adults and young people alike.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116893358","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}
Priscilla Jimenez Pazmino, L. Lyons, B. Slattery, Benjamin Hunt
Zoos and museums often rely on interpretive staff, called explainers, to facilitate visitors' learning through conversations and demonstrations. Many explainers begin their careers as teens, and would benefit from ongoing Professional Development (PD). As institutions begin to use mobile devices to enhance explainers' interpretation, new opportunities arise to support explainers' individual and collaborative professional development. This paper presents the results of structured participatory design sessions to engage explainers in examining and proposing features for a Facilitation, Reflection, and Augmented Interpretation Mobile System (FRAIMS). The goal for FRAIMS is to support everyday interpretive tasks while also gathering information on how explainers perform that interpretation (both passively, via logging and recording, and actively, via self-reports and ratings) to support them in their PD. Reflecting on one's own performance and the performance of others is a powerful PD strategy, but can be emotionally fraught. Via participatory design sessions with expert, in-development, and novice explainers at different informal learning institutions, we found that explainers' preferences for socially sharing performance information gathered via mobile devices varied with their experience. We detail emerging themes captured from the sessions and make suggestions for how these findings might apply more broadly to computer-supported professional development systems.
{"title":"Exploring Computer-Supported Professional Development for Novice Museum and Zoo Professionals","authors":"Priscilla Jimenez Pazmino, L. Lyons, B. Slattery, Benjamin Hunt","doi":"10.1145/2957276.2957312","DOIUrl":"https://doi.org/10.1145/2957276.2957312","url":null,"abstract":"Zoos and museums often rely on interpretive staff, called explainers, to facilitate visitors' learning through conversations and demonstrations. Many explainers begin their careers as teens, and would benefit from ongoing Professional Development (PD). As institutions begin to use mobile devices to enhance explainers' interpretation, new opportunities arise to support explainers' individual and collaborative professional development. This paper presents the results of structured participatory design sessions to engage explainers in examining and proposing features for a Facilitation, Reflection, and Augmented Interpretation Mobile System (FRAIMS). The goal for FRAIMS is to support everyday interpretive tasks while also gathering information on how explainers perform that interpretation (both passively, via logging and recording, and actively, via self-reports and ratings) to support them in their PD. Reflecting on one's own performance and the performance of others is a powerful PD strategy, but can be emotionally fraught. Via participatory design sessions with expert, in-development, and novice explainers at different informal learning institutions, we found that explainers' preferences for socially sharing performance information gathered via mobile devices varied with their experience. We detail emerging themes captured from the sessions and make suggestions for how these findings might apply more broadly to computer-supported professional development systems.","PeriodicalId":244100,"journal":{"name":"Proceedings of the 2016 ACM International Conference on Supporting Group Work","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115387080","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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