Social Photo Sharing Research Papers

Many emerging Web services, such as email, photo sharing, and web site archives, need to preserve large amounts of quickly-accessible data indefinitely into the future. In this paper, we make the case that these applications' demands on large scale storage systems over long time horizons require us to re-evaluate traditional storage system designs. We examine threats to long-lived data from an end-to-end perspective, taking into account not just hardware and software faults but also faults due to humans and organizations. We present a simple model of long-term storage failures that helps us reason about the various strategies for addressing these threats in a cost-effective manner. Using this model we show that the most important strategies for increasing the reliability of long-term storage are detecting latent faults quickly, automating fault repair to make it faster and cheaper, and increasing the independence of data replicas.

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- Operating Systems, Digital Preservation, Perspective Taking, System Design

Eleven PC-owning families were interviewed at home about their use of conventional and digital photos. They also completed photo diaries and recorded photo-sharing conversations that occurred spontaneously over a three month period after the in-home interviews. From an analysis of the resulting materials we illustrate the strengths and weaknesses of past and present technology for photo sharing. These allow us to prioritise user requirements for a range of future photo-sharing technologies or 'photoware'.

- by David Frohlich
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- Communication, Digital Photography, Social Photo Sharing, User Requirements

Photo sharing sites such as Flickr are commonly regarded either as spaces where communal views and experiences evolve as a result of picture exchange, or as visual archives where sharing pictures in the present naturally leads to a collective interpretation of the past. This article proposes regarding Flickr as a social media platform annex database that enables the construction of infinite connections. Platforms such as Flickr are firmly embedded in a culture of connectivity, a culture where the powerful structures of social networking sites are gradually penetrating the core of our daily routines and practices. What is often called 'collective memory' or 'cultural heritage' in relation to digital photo sharing sites is largely the result of data linked up by means of computer code and institutional protocols.

- by Jose van Dijck
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- Social Media, Memory Studies, Multidisciplinary, Social Photo Sharing

Developments in networked digital imaging promise to substantially affect the near-universal experience of personal photography. Designing technology for image capture and sharing requires an understanding of how people use photos as well as how they adapt emerging technology to their photographic practices, and vice versa. In this paper, we report on an empirical study of the uses made of a prototype context -aware cameraphone application for mobile media sharing, and relate them to prior work on photographic practices. By reducing many of the barriers to cameraphone use and image sharing (including increasing image quality, easing the sharing process, and removing cost barriers), we find that users quickly develop new uses for imaging. Their innovative communicative uses of imaging are understandable in terms of the social uses identified from prior photographic activity; new functional uses are developing as well.

- by Nancy Van House
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- Photography, Social Media, Photography (Visual Studies), Mobile Photography

This thesis charts the shifts in metaphors of memory associated with the digitization of personal photography -from "archiving" to "sharing" -developing a strong account of the role of metaphor in shaping cultural conceptions and material technologies of memory making in relation to photography. Early discourse surrounding the emergence of photography heralded the camera as a medium capable of capturing the imprinted trace (light) of the real. By extension, photography has routinely been figured as an essential means through which "the social" can be captured, framed, communicated, and distributed, with personal photographs historically positioned as visual "archives" of the self. Underlying this are specific metaphorical conceptions of the relationships between human memory, reality and representation. This thesis considers how metaphors of the "memory-archive" have naturalized historically specific ideas about human memory which have in turn come to serve as models for the design and ongoing use of photographic technologies. This thesis argues for a sociology of metaphor, which can account for the ideological potential of metaphor in constructing a specific paradigm of memory, while advancing the material consequences of metaphor as a constitutive agent that enables and constrains the possibilities for memory making. The thesis focuses upon the metaphoric shifts from analogue preservation or "archiving" to online distribution or "sharing" within digital landscapes. The central chapters of the thesis consider the ways in which particular metaphors of memory -as archive, as distributed, as shared -are materialized as technologies, in this case photographic media. By exploring three key technologies -the Kodak EasyShare Camera, Cloud Computing, and the Instagram Application -the thesis iii examines the ways in which new metaphors of memory and of the social are becoming materially embedded. The thesis further reveals residual anthropocentric ideas of memory and technology, which continue through metaphors of photo-sharing which further disguises the role of the "technological unconscious" in shaping potential memories.

- by Sonja Solomun
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- Sociology, Cultural Studies, New Media, Media and Cultural Studies

T elecommunication innovations have provided people increasingly richer means to share their experiences with each other. For most of recent history, this communication was tied to a particular place-phones were fixed in homes or offices, and people sent letters to a specific location. Now mobile phones connect to people no matter their location, which has brought new possibilities to share live experiences instantly across great distances. As mobile phones become sensing and media capture devices, they can ambiently share a user's environment with others. This mobile context sharing creates new, rich experiences that can increase feelings of social presence as well as enhance and inspire future communications. We set out to understand how people can share experiences using a mobile phone and how context sharing in mobile environments affects communication and feelings of presence. We began with a study on location-and activitysharing, which explored how people currently share context in mobile phone calls, along with a study on how life boundaries impact availability and communication. Using this information, we created three context-sharing applications as probes to investigate how additional context information would change the ways participants communicate with, and feel connected to, their strong-tie relations.

- by Frank Bentley
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- Distributed Computing, Social Media, Social Presence, Mobile phone

In this paper we describe our experience in researching what media people create themselves and for what purposes. Our starting point is the so-called "Kodak culture", which is a concept describing film-based snapshot photography. Currently snapshot photography is digital and networked, and ever more mixed with other forms of media production. This is why we extend the traditional "Kodak culture" to include all forms of media and related services used for capturing, storing, distributing, and showing usergenerated content. This array of user-generated media we term snapshot media. The term snapshot refers to the influence that "Kodak culture" still has for user-generated media production. In our research we have studied the reasons for capturing photographs and videos, photo sharing and similar social networking web services, the role of paper, and metadata and tagging. Future issues we see in the complexity of personal media infrastructures, the management of privacy, and the exclusion of people with no education in digital technology.

- by Vilma Lehtinen
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- User Generated Content, Web Service, Social Photo Sharing, Social Network

Selfies have become means of self-expression and validation. Posting selfies on social networking sites have become a global phenomenon. By uploading selfies to social media, users seek to gratify their needs. However, there are psychologists that point out that the trend of taking and posting selfies is related to self-esteem values. This research examined the most sought and least sought gratifications in posting selfies on Facebook, and the relationship between gratifications and self-esteem levels of the users. Social-connection was identified as the most sought gratification and attention-seeking as the least sought gratification. Also, it was found that attention seeking was positively associated with low self-esteem level, social-influence was positively associated with high self-esteem level, and habitual was positively associated with low self-esteem level.

- by Claude Abraham Desouza
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- Psychology, Social Networking, Digital Media, Mass Communication

This paper describes the winning entry to the IJCNN 2011 Social Network Challenge run by Kaggle.com. The goal of the contest was to promote research on realworld link prediction, and the dataset was a graph obtained by crawling the popular Flickr social photo sharing website, with user identities scrubbed. By de-anonymizing much of the competition test set using our own Flickr crawl, we were able to effectively game the competition. Our attack represents a new application of de-anonymization to gaming machine learning contests, suggesting changes in how future competitions should be run.

- by Arvind Narayanan
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- Machine Learning, Graph Theory, Simulated Annealing, Science Learning

Achievement systems are reward structures providing additional goals for players, and thus extending the play time of videogames. In this paper, we explore how applications other than games could benefit from achievement systems, and how users perceive this additional content in a service. For this purpose, we added an achievement system to a geo-tagged photo sharing service called Nokia Image Space. The results suggest that there is some potential in achievement systems outside the game domain. The achievements triggered some friendly competition and comparison between users. However, many users were not convinced, expressing concerns about the achievements motivating undesirable usage patterns. Therefore, an achievement system poses certain design considerations when applied in nongame software. n Interfaces]: Collaborative Computing perimentation, Human Factors, Theory ndary reward systems that have other new th nd

- by Timo Nummenmaa and +1
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- Achievement Motivation, User eXperience, Social Photo Sharing

The everyday use of smartphones with high quality built-in cameras has lead to an increase in museum visitors' use of these devices to document and share their museum experiences. In this paper, we investigate how one particular photo sharing application, Instagram, is used to communicate visitors' experiences while visiting a museum of natural history. Based on an analysis of 222 instagrams created in the museum, as well as 14 interviews with the visitors who created them, we unpack the compositional resources and concerns contributing to the creation of instagrams in this particular context. By re-categorizing and re-configuring the museum environment, instagrammers work to construct their own narratives from their visits. These findings are then used to discuss what emerging multimedia practices imply for the visitors' engagement with and documentation of museum exhibits. Drawing upon these practices, we discuss the connection between online social media dialogue and the museum site.

- by Beata Jungselius and +1
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- Museum Studies, Social Media, Mobile Phones, Smartphones
- by Patty Bustamante Avendaño
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- Collaboration, Linux, iPad, PC

Sharing personal photos is one of the most popular activities on social media. Despite this rising trend, minimum research has been done to understand the indulgence of users behind this activity. In order to understand the user gratification and bridge this gap, this study will be conducted by focusing on Facebook as one of the primary and largest platforms for photo sharing. The highest number of Facebook users fall in the age group of 18 to 29 and this age group is also the most active group in photo sharing according to 2015 report by PEW Research Center. This is also supported by the finding of previous studies. Therefore, the study will particularly focus on the mentioned age group: 18 to 29.The study is based on the uses and gratification theory and conducted using a quantitative method using questionnaire and survey tools. The study findings can be utilized to develop new features and services for photo sharing platforms.

- by Claude Abraham Desouza
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- Communication, Photography, Mass Communication, Social Media
- by Devan Rosen
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- Social Media, Facebook, Social Cognitive Theory, Social Network Sites

- by Hannu Korhonen and +1
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- Achievement Motivation, User eXperience, Social Photo Sharing

Social cognitive theory suggests a likely relationship between behavior modeled on increasingly popular reality television (RTV) and user behavior modeled on social networking sites (SNSs). This study surveyed young adults (N = 456) to determine the extent to which RTV consumption explained a range of user behavior in the context of social network sites. Results show a consistent relationship between RTV consumption and the length of time spent on these sites, the size of users' networks, the proportion of friends not actually met face to face, and photo sharing frequency while controlling for age and gender.

- by Derek Lackaff and +1
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- Social Media, Facebook, Social Cognitive Theory, Social Network Sites

- by Adriana Vivacqua
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- Collective Intelligence, Emergency Management, Crowdsourcing, Emergency Response

Operators of online social networks are increasingly sharing potentially sensitive information about users and their relationships with advertisers, application developers, and data-mining researchers. Privacy is typically protected by... more

- by Arvind Narayanan
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- Social Networks, Data Mining, Graph Theory, Privacy

When large groups work on a theme, they have the potential to produce a lot of useful knowledge, regardless of whether they are acting in a coordinated manner or individually. Spontaneously generated information has received much attention in recent years, as organizations and businesses discover the power of crowds. New technologies, such as blogs, Twitter, wikis, photo sharing, collaborative tagging and social networking sites, enable the creation and dissemination of content in a relatively simple way. As a result, the aggregate body of knowledge is growing at an accelerated rate. Many organizations are looking for ways to harness this power, which is being called collective intelligence. Research has shown that it is possible to obtain high quality results from collectively produced work. In this paper, we consider the domain of emergency response. Research has shown that individuals respond quickly and massively to emergencies, and that they try to help with the situation. Thus, it seems like a logical step to attempt to harness collective knowledge for emergency management. Disaster relief groups and field command frequently suffer from lack of up to date information, which may be critical in a rapidly evolving situation. Some of this information could be generated by the crowd at large, enabling more effective response to the situation. In this paper, we discuss the possibilities for the introduction of collective knowledge in disaster relief and present architecture and examples of how this could be accomplished.

- by Marcos Borges
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- Collective Intelligence, Emergency Management, Crowdsourcing, Emergency Response

The availability of various photo archives and photo sharing systems made similarity searching much more important because the photos are not usually conveniently tagged. So the photos (images) need to be searched by their content. Moreover, it is important not only to compare images with a query holistically but also to locate images that contain the query as their part. The query can be a picture of a person, building, or an abstract object and the task is to retrieve images of the query object but from a different perspective or images capturing a global scene containing the query object. This retrieval is called the sub-image searching. In this paper, we propose an algorithm for retrieving database images by their similarity to and containment of a query. The novelty of it lies in application of a sequence alignment algorithm, which is commonly used in text retrieval. This forms an orthogonal solution to currently used approaches based on inverted files. The proposed algorithm is evaluated on a real-life data set containing photographs where images of logos are searched. It was compared to a state-of-the-art method and the improvement of 20% in average mean precision was obtained.

- by Vlastislav Dohnal
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- Photography, Complexity Theory, Sequence alignment, Image Retrieval

Photo sharing is a captivating feature which popularizes Online Gregarious Networks (OSNs). Lamentably, it may leak users' privacy if they are sanctioned to post, comment, and tag a photo liberatingly. In this paper, we endeavor to address this issue and study the scenario when a utilizer shares a photo containing individuals other than him/her (termed co-photo for short). To obviate possible privacy leakage of a photo, we design a mechanism to enable each individual in a photo be cognizant of the posting activity and participate in the decision making on the photo posting. For this purport, we require an efficient facial apperception (FR) system that can apperceive everyone in the photo. However, more authoritatively mandating privacy setting may limit the number of the photos publicly available to train the FR system. To deal with this dilemma, our mechanism endeavors to utilize users' private photos to design a personalized FR system concretely trained to differentiate possible photo co-owners without leaking their privacy. We additionally develop a distributed consensus predicated method to reduce the computational intricacy and for fend the private training set. We show that our system is superior to other possible approaches in terms of apperception ratio and efficiency. Our mechanism is implemented as a proof of concept Android application on Facebook's platform.

In online photo-sharing communities, the individual's expression of self and the relationships that evolve among members is determined by the kinds of images that are shared, by the words exchanged among members, and by interpersonal actions that do not specifically rely on images or text. This article examines the dynamics of personal expression via images in Flickr, including a proposed system for identifying the dimensions of imagistic communication and a discussion of the psychological meanings embedded in a sequence of images. It explores how photographers use text descriptors to supplement their images and how different types of comments on photographs influence interpersonal relationships. The "fav"-when members choose an image as one of their favorites-is examined as one type of action that can serve a variety of interpersonal functions. Although images play a powerful role in the expression of self, it is the integration of images, words, and actions that maximize the development of relationships.

- by John Suler
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- Information Systems, Psychology, Cognitive Science, Communication

Transformations of media technology bring about new communicative practices that challenge existing ethical and moral norms and demand for continuous renegotiations and reconfirmations of what is considered as responsible and appropriate. So far, the scientific discourse on visual ethics has mostly focused on visual research ethics and the ethical norms within professional fields of mass-media production, neglecting ethical and moral dimensions of mundane visual practices. The paper illustrates the necessity of a critical engagement with “ethical practices” in the field of visual everyday communication, using various areas of conflict regarding the production, distribution, and use of images (e.g. non-consensual photo sharing, reproduction of visual stereotypes in selfies) as starting points for the discussion. Overall, rather than providing normative guidelines for ethical visual behavior, the paper identifies multiple dimensions of ethical considerations and draws implication for future research.

- by Katharina Lobinger and +1
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- Media Ethics, Visual Communication, Cyberbullying, Sexting
- by Ibrar Hussain
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- Information Systems, Data Mining, Social Media, Geographical Information Science
- by Massimiliano Ruocco
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- Event Detection, Image Retrieval, Text Analysis, Image Annotation

In this paper, we present a large-scale object retrieval system. The user supplies a query object by selecting a region of a query image, and the system returns a ranked list of images that contain the same object, retrieved from a large corpus. We demonstrate the scalability and performance of our system on a dataset of over 1 million images crawled from the photo-sharing site, Flickr [3], using Oxford landmarks as queries. Building an image-feature vocabulary is a major time and performance bottleneck, due to the size of our dataset. To address this problem we compare different scalable methods for building a vocabulary and introduce a novel quantization method based on randomized trees which we show outperforms the current state-of-the-art on an extensive ground-truth. Our experiments show that the quantization has a major effect on retrieval quality. To further improve query performance, we add an efficient spatial verification stage to re-rank the results returned from our bagof-words model and show that this consistently improves search quality, though by less of a margin when the visual vocabulary is large. We view this work as a promising step towards much larger, "web-scale" image corpora.

- by Andrew Zisserman
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- Information Retrieval, Quantization, Image Retrieval, Scalability

Social media plays an important role in tourism industry, especially for
individual travel planning and tourism entities preparing business plans. Only a limited number of first-tier attractions were reported in tourism bureau’s travel statistics documents, which cannot satisfy the needs of non-first tier attraction managers preparing their marketing strategies. With the rich tourists reviews and photos publicly available on social network platform, researchers and attraction manager could analyzing these geotagged photos to find out the potentials of the attractions including tourists interests and their travel pattern. In this study, we report our work on extracting and processing of geotagged photos uploaded by inbound tourists on Flickr.com to study tourists’ photo sharing and visiting pattern during their visits at Hong Kong temples. Four popular temples were identified automatically using P-DBSCAN density clustering from geotagged tourists photos. The travel pattern analysis had shown that tourists from different country of residence
have different temple choice. Particularly, a closer look at the repeated tourists in the past five years, and special focus on photo uploading habits are discussed in our findings.

- by Rosanna Leung
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- Hong Kong, Clustering, Geotagging, Social Photo Sharing

In this paper, we describe MusicStory, a system that automatically creates videos to accompany music with lyrics. MusicStory uses common search engines, photo-sharing websites, and simple analysis of the dynamics and tempo of the music to create personalized photo-narratives. Video pacing and content is based on the content of the song and structure of the image repositories selected. The image associations MusicStory presents amplify the emotional experience by externalizing the imagery in song lyrics with the content found within a social network. The resulting work juxtaposes the meanings inherent in the social network with those in the song.

- by David A Shamma
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- Media Art, Software Agents, Search Engine, World Wide Web

Recent work by our group at Motorola Labs has focused on applying the principles of ambient interfaces to th e domain of mobile communications. Our methods incorporate both formative ethnographic studies and field evaluation of prototypes to investigate how people make use of ambient information in the course of everyday communication. Our goal is to enable applications that provide rich pr esence information for close friends and family that is ap propriate to their particular tasks and social conventions. I n this paper, we briefly summarize the results of two prio r field studies of ambient awareness on mobile phones: shar ed motion presence and music listening history. We the n discuss our current efforts in context-aware photo sharing on the phone. Together, these studies provide insig hts about how people understand, use, and contextualize prese nce information. We also show how this information helps people stay connected and strengthens relationships . We hope to use these i...

- by Noel S Massey and +1
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- Pervasive Computing, Mobile Communication, Mobile Device, Mobile phone

Despite the rapid adoption of Facebook as a means of photo sharing, minimal research has been conducted to understand user gratification behind this activity. In order to address this gap, the current study examines users’ gratifications in sharing photos on Facebook by applying Uses and Gratification (U&G) theory. An online survey completed by 368 respondents identified six different gratifications, namely, affection, attention seeking, disclosure, habit, information sharing, and social influence, behind sharing digital photos on Facebook. Some of the study’s prominent findings were: age was in positive correlation with disclosure and social influence gratifications; gender differences were identified among habit and disclosure gratifications; number of photos shared was negatively correlated with habit and information sharing gratifications. The study’s implications can be utilized to refine existing and develop new features and services bridging digital photos and social networking services.

- by Aqdas Malik and +1
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- Social Networking, Social Media, Facebook, Uses And Gratifications

Cameraphones are rapidly becoming a global platform for everyday digital imaging especially for networked sharing of media from mobile devices. However, their constrained user interfaces and the current network and application infrastructure encumber the basic tasks of transferring, finding, and sharing captured media. We have deployed a prototype context-aware cameraphone application for mobile media sharing (MMM2) that aims to overcome

- by Rachel Strickland
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- Computer Science, Social Networks, Location Based Services, Machine Learning

There has been a significant increase in interest and partic- ipation in social networking websites recently. For many users, social networks are indispensable tools for sharing personal information and keeping abreast with updates by their acquaintances. While there has been research on un- derstanding the structure and effects of social networks, re- search on using social networks for developing targeted

- by Sandip Sen
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- Social Photo Sharing, Social Network

Media-sharing websites are facilitating modern versions of storytelling activities. This study investigates the use of photo-based narratives for supporting young parents who are geographically-separated from their aging parents to share stories about their young children. We analyze the case of Malaysian young mothers living in the UK, communicating regularly with their families back home, sharing experiences living in another country, looking for parenting advice, and opening opportunities for sharing the life and development of their young children. Sixteen families participated in our study through giving us access to their social networking and web spaces and participating in exercises for creating photo stories. We identified the characteristics of the mediating system serving to establish the contact between grandparents and grandchildren as well as the characteristics of the photostories and the practices around sharing them.

- by Nirmal Patel
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- Human Computer Interaction, Photography, South Korea, Social Media

Geo-tagging is a fast-emerging trend in digital photography and community photo sharing. The presence of geographically relevant metadata with images and videos has opened up interesting research avenues within the multimedia and computer vision domains. In this paper, we survey geo-tagging related research within the context of multimedia and along three dimensions: (1) Modalities in which geographical information can be extracted, (2) Applications that can benefit from the use of geographical information, and (3) The interplay between modalities and applications. Our survey will introduce research problems and discuss significant approaches. We will discuss the nature of different modalities and lay out factors that are expected to govern the choices with respect to multimedia and vision applications. Finally, we discuss future research directions in this field.

- by dhiraj joshi
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- Information Systems, Computer Vision, Digital Photography, Computer Software

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- by Ian Simon
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- Distributed Computing, 3-D Reconstruction, Image matching, Social Photo Sharing

Among the billions of photos that have been contributed to online photo-sharing sites, there are many that are provocative, controversial, and deeply personal. Previous research has examined motivations for sharing images online and has identified several key motivations for doing so: expression, curation of identity, maintaining social connections, and recording experiences. However, few studies have focused on the perceived risks of posting photos online and even fewer have examined the risks associated with provocative, controversial, or deeply personal images. In our work, we used photo-elicitation interviews to explore the motivations for posting these types of images and the perceived risks of doing so. In this paper, we describe our findings from those interviews.

- by Haakon Faste
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- Privacy, Perceived Risk, Sharing, Social Photo Sharing

We present the results of three studies on the use of contextual metadata tags to find personal photographs. Specifically we address the use of time, event, and location tags to allow users to find media from their collections. We found that users need to be provided with flexible ways to browse their content and that they remember quite different attributes of each piece of content. Finally, we discuss the need for flexible photo search to support photo sharing and photo talk, two key uses of photographs.

- by Crysta Metcalf
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- User needs, Social Photo Sharing

As sharing personal media online becomes easier and widely spread, new privacy concerns emerge -especially when the persistent nature of the media and associated context reveals details about the physical and social context in which the media items were created. In a first-of-its-kind study, we use context-aware camerephone devices to examine privacy decisions in mobile and online photo sharing. Through data analysis on a corpus of privacy decisions and associated context data from a real-world system, we identify relationships between location of photo capture and photo privacy settings. Our data analysis leads to further questions which we investigate through a set of interviews with 15 users. The interviews reveal common themes in privacy considerations: security, social disclosure, identity and convenience. Finally, we highlight several implications and opportunities for design of media sharing applications, including using past privacy patterns to prevent oversights and errors.

- by Rahul Nair
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- Privacy, Data Analysis, Location-Awareness, Social Software

Despite the rapid adoption of Facebook as a means of photo sharing, minimal research has been conducted to understand user gratification behind this activity. In order to address this gap, the current study examines users' gratifications in sharing photos on Facebook by applying Uses and Gratification (U&G) theory. An online survey completed by 368 respondents identified six different gratifications, namely, affection, attention seeking, disclosure, habit, information sharing, and social influence, behind sharing digital photos on Facebook. Some of the study's prominent findings were: age was in positive correlation with disclosure and social influence gratifications; gender differences were identified among habit and disclosure gratifications; number of photos shared was negatively correlated with habit and information sharing gratifications. The study's implications can be utilized to refine existing and develop new features and services bridging digital photos and social networking services.

- by aqdas malik
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- Information Systems, Psychology, Computer Science, Social Networking

In this paper, we describe the iterative design and user study of "4Photos", a multi-screen table centrepiece allowing media content to be shared and enjoyed in a social setting. It was our intention to design an object with the purpose to gather qualitative data concerning the social effects of new ways of democratic, serendipitous and playful photo sharing. To facilitate this we used online photo repository content that most often gets experienced in an individual setting. Using 4Photos we positioned this content within a social setting and observed how the presentation of these images enabled new ways of "phototalk" to arise. We describe the design process, the final concept and reflect upon observed practices that emerged from people"s usage of 4Photos. We then present several design implications and discuss future directions for continuation of this research.

- by Elise van den Hoven
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- Interaction Design, Collaboration, User Interface, Tangible User Interfaces

Stitching is a new interaction technique that allows users to combine pen-operated mobile devices with wireless networking by using pen gestures that span multiple displays. To stitch, a user starts moving the pen on one screen, crosses over the bezel, and finishes the stroke on the screen of a nearby device. Properties of each portion of the pen stroke are observed by the participating devices, synchronized via wireless network communication, and recognized as a unitary act performed by one user, thus binding together the devices. We identify the general requirements of stitching and describe a prototype photo sharing application that uses stitching to allow users to copy images from one tablet to another that is nearby, expand an image across multiple screens, establish a persistent shared workspace, or use one tablet to present images that a user selects from another tablet. We also discuss design issues that arise from proxemics, that is, the sociological implications of users collaborating in close quarters.

- by Marc Smith
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- Wireless Network, Mobile Device, Social Photo Sharing, Shared Workspace

We study the problem of predicting the popularity of items in a dynamic environment in which authors post continuously new items and provide feedback on existing items. This problem can be applied to predict popularity of blog posts, rank photographs in a photo-sharing system, or predict the citations of a scientific article using author information and monitoring the items of interest for a short period of time after their creation. As a case study, we show how to estimate the number of citations for an academic paper using information about past articles written by the same author(s) of the paper. If we use only the citation information over a short period of time, we obtain a predicted value that has a correlation of r = 0.57 with the actual value. This is our baseline prediction. Our best-performing system can improve that prediction by adding features extracted from the past publishing history of its authors, increasing the correlation between the actual and the predicted values to r = 0.81.

- by Carlos Castillo
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- Case Study, Feature Extraction, Dynamic Environment, Social Photo Sharing
- by Frank Bentley
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- Pervasive Computing, Mobile Communication, Mobile Device, Mobile phone

As cameraphones become the dominant platform for consumer multimedia capture worldwide, multimedia researchers are faced both with the challenge of how to help users manage the billions of photographs they are collectively producing and the opportunity to leverage cameraphones' ability to automatically capture temporal, spatial, and social contextual metadata to help manage consumer multimedia content. In our Mobile Media Metadata 2 (MMM2) prototype, we apply collaborative filtering techniques to automatically gathered contextual metadata to infer the likely sharing recipients for photos captured on cameraphones. We show that while current cameraphone sharing interfaces are fraught with difficulty, it is possible to use a context-aware approach to make the sharing of cameraphone photos simpler and more satisfying for users. Based on our analysis of the relative contributions of different cameraphone sensors to predicting the likely recipients for photos, we discover for our user population that the temporal context of photo capture proved highly predictive of photo sharing behavior.

- by Dan Perkel
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- Machine Learning, Digital Photography, Ubiquitous Computing, Pervasive Computing

BudBurst Mobile is a smartphone application for an environmental Participatory Sensing project that focuses on observing plants and collecting plant life stage data. The app was initially designed for record-keeping and motivation to participate in this project has been based on improving scientific knowledge. To test other methods for motivating data collection and increasing user retention, we added an outdoor game activity, similar to geocaching, called floracaching. Players gain points and levels within the game by finding and making qualitative observations on plants. Location-based information is included in the game with the display of local lists of plant species occurring in a user's area derived from governmental data sources. Additionally, user-collected data and the occurrence of species on the local lists obtained from the photo-sharing website Flickr are displayed on an interactive map. Administrator targeting of individual plants facilitates expert control over crowd-sourced data collection for species of interest. We evaluated these additional features with the help of 50 volunteers playing on the UCLA campus as a case study. Results indicated that participants were highly motivated by the floracaching game, and next-most by the knowledge that environmental scientists will use the data collected for studying the effects of global climate change. Other motivating features included sharing plant observations with other users and the information contained in the local lists of plants.

- by Kyungsik Han
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- Human Factors, Mobile Communication, Mobile Computing, global Climate change

Over the last years we have witnessed a rapid transformation on how people use digital media. Thanks to innovative interfaces, non-professional users are becoming active nodes in the content production chain by uploading, commenting, and sharing their media. As a result, people now use media for communication purposes, for sharing experiences, and for staying in touch. This paper introduces a user-centric authoring tool that enables common users to transform a static photo into a temporal presentation, or story, which can be shared with close friends and relatives. The most relevant characteristics of our approach is the use of a format-independent data model that can be easily imported and exported, the possibility of creating different storylines intended for different people, and the support of interactivity. As part of the activities carried out in the TA2 project, the system presented in this paper is a tool for end-users to nurture relationships.

- by Fons Kuijk and +1
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- Animation, Multimedia, Storytelling, Interactive Digital Storytelling

Sharing photos through mobile devices has a great potential for creating shared experiences of social events between co-located as well as remote participants. In order to design novel event sharing tools, we need to develop in-depth understanding of current practices surrounding these so called ‘event photos’- photos about and taken during different social events such as weddings picnics, and music concert visits among others. We studied people’s practices related to event photos through in-depth interviews, guided home visits and naturalistic observations. Our results show four major themes describing practices surrounding event photos: 1) representing events, 2) significant moments, 3) situated activities through photos, and 4) collectivism and roles of participants.

Social Photo Sharing Research Papers (original) (raw)