The last article dispatched from my PhD thesis has been accepted for publication in the journal Pervasive and Mobile Computing. The slow academic process to diffuse research results - this study was performed in 2007-2008 - has at least the merit to force authors in looking back into their methods and procedures. Now in 2010, inspired by Nicolas’ Field Research for Design and others, I probably would perform the qualitative data collection and analysis differently. Nevertheless, I still believe this work delivers some relevant insights on people appropriation of location-based systems.

The co-evolution of taxi drivers and their in-car navigation systems (pre-copy-editing pdf)

Abstract. The recent market success of in-car navigation systems creates the opportunity to investigate the appropriation of location-aware systems outside laboratory settings. Through ethnographical lenses, we study how this technology changed the practice of a massive community of its early adopters, the taxi drivers of Barcelona (Spain) and, specifically, their exploitation of pervasive geoinformation. The results show co-evolution: taxi drivers adapt to their in-car navigation systems and adapt them to their needs; in particular, there are evidences of an alteration of the learning processes and of technology appropriation to reduce stress rather than to improve efficiency. We argue that these findings can inform the design of next generation location-based services.

The interplay between a sat-nav and a city guide. Barcelona, June 2008.

Why do I blog this: Last article of my PhD thesis to be accepted. In this study I particularly learned how to a) design a qualitative data collection procedure and b) analyze and interpret the notes, videos and photos.

Today I participated to the My Map is Not Your Map Workshop at Arteleku in hype and laid-back San Sebastian. The workshop gathers an enriching mix of artists, designers, academics, engineers. My 45min talk “New maps and practices of hybrid spaces” aimed at describing the new types of maps of hybrid spaces, their utility and their integration into practices from tourism and urban studies to the wayfinding practice of taxi drivers. Comparing to traditional maps, I stressed the increasing value of the 4th dimension (time) in the dynamic and interactive representation of hybrid spaces now available, taking the occasion to provoke the audience with the notions of “real-time awareness” and “end of the ephemeral”. Indeed, not only these new maps alter our immediate apprehensions of the space we feel, live and work in, they also serve as means to communicate evidences and measurements, critical to evaluate space management strategies and policies. These approaches could alter the practices that relate to physical character of the world and human activities. However, part of the evolution of these new practices, we should consider their implications in forms of trade-offs and amputations.

The audience reacted to the notion of “imperfect mirror to reality” (information granularity, spatial uncertainty, seamful design), I believe capturing quite well the limitations of the kind of work I develop. I like to use these practical aspects, around the notion of oligopticon to balance any rhetoric that portrays the “perfect surveillance system”.

Thanks to José Luis Pajares for the invitation!

The book Digital Cityscapes: Merging Digital and Urban Playspaces has been released recently. The description goes as follows:

The convergence of smartphones, GPS, the Internet, and social networks has given rise to a playful, educational, and social media known as location-based and hybrid reality games. The essays in this book investigate this new phenomenon and provide a broad overview of the emerging field of location-aware mobile games, highlighting critical, social scientific, and design approaches to these types of games, and drawing attention to the social and cultural implications of mobile technologies in contemporary society. With a comprehensive approach that includes theory, design, and education, this edited volume is one of the first scholarly works to engage the emerging area of multi-user location-based mobile games and hybrid reality games.

It features a chapter I co-authored with Nicolas discussing the issues for the design of Location-Based Games based on our experience with CatchBob!. We give an overview of the three main design issues our results supported: the role played by physical features, the importance of the technological infrastructure and finally the user experience of location-awareness of others.

Why do I blog this: After Space Time Play, it is clear that studying ubiquitous games has consequences for many other areas of contemporary research and daily experience.

In the talk “Considerations on the recorded, quantified, communicated and apprised self” given at the workshop Information Kinetics: Egoviz, I present my experiences in working with the increasing amount of stored (and circulating) information about people, and their local environments. I intended to draw a few considerations to provoke and encourage the participants who have been developing some pretty exciting projects that explored the visualisation of the relationship between the individual and the environment. With a few examples, I highlighted the fact that current visualizations are used to engage the discussions rather than solving issues. Going beyond revealing the invisible is the next step that must include imperfection as an ingredient embedded in the solution. This imperfect mirror to reality challenges the rhetoric that describes the development of information kinetics as element of an emerging panopticon. Instead, I discussed the notion of the oligopticons that are “partially intelligent, temporarily competent and locally complete. The slides with notes are online.

Engaged with the near future of egooviz at Arteleku

Why do I blog this: It is always extremely stimulating to confront my work in an art center. I was particularly surprised by the maturity of the rhetoric participants use to describe their work. Some non-technologists now master Processing and its capabilities. Those are tangible signs of the emergence of groups of data scientists/artists with multidisciplinary practises and overlapping roles. Thanks to Kepa for the inviation!

Last week, I participated to a Design Hub Barcelona (DHUB) session on “New Landscapes – Architecture Beyond Leisure. In my talk “people + technology + space“, I briefly presented the works, in relation to tourism, developed at UPF and MIT and featured at the Tourism. Spaces of fiction exhibition (i.e. Los Ojos del Mundo, Real-time Rome and WikiCity Rome). This exhibition focuses on tourism from planning, projection and design angles. The presence of an engineer+researcher was rather at odds with a parterre of architects and practitioners of the physical space. I am glad the curators Mario Ballesteros and Irene Hwang took the risk of exposing my different perspective coming from the study of hybrid cities. It got me to further grasp the degree of misunderstandings and differences of practices within the multiple actors that now touch the design of the public space (be it physical, hybrid or digital). The presentation I have seen had a very elaborated discourse on shaping the space for tourists and urban dwellers, but I expressed my doubts on the capacity of the current practitioners to engage in a design process that actually focus on people (for the sake of doing things right and to learn, see The end of temelessness). In contrast, architect Julien de Smedt described the work I presented as merely useless. A judgment I certainly understand coming from a practice that barely integrates the tourist as a human and discards the hybrid as part of the space.

A mix of old bricks and fresh bits announcing the DHUB session.

Thanks to Carlos Ipser, Mario Ballesteros and Irene Hwang for the invitation!

Last week I participated to the workshop “La Ciudad Híbrida” organized in Sevilla by José Luis de Vicente. The first 2 days, we used different theoretical lenses and practical references to explore the many different aspects of the hybrid city. Juan Freire engaged us with proposals for a participatory urbanism with the design of open processes and bottom-up solutions (see De la ciudad híbrida al urbanismo P2P: democracia 2.0, gestión local participativa y crowdsourcing). José Luis de Vicente stepped back and led us through the history influenced by urban theorist, architects and artist that have paved the way to the hybrid city of the 21st century, the dynamic city (see Una historia de la ciudad de software: arquitecturas dinamicas y sistemas digitales urbanos). An argumentation completed by Juan Martín Prada who covered the rich field of location media with a philosophic spin (co-existance men-thinks, men-animals, men-deads, the urbanization of the real-time city (networked city) vs. desurbanization of the real-space; the “Here” being replaced by the permanant “Now”.

Before Juan Martin, I played the role of “data cowboy” with a 90min talk (in Spanish) that looked at the contemporary hybrid city through the lenses of my research work augmented by some offline observations. In this intervention entitled “People as sensors; people as actors” (slides with annotations, video), I look at the integration of ubiquitous technologies (and soft infrastructures) and how they afford us new flexibility in conducting our daily activities with simultaneously providing the means to study our activities in time and space.

The other part of the workshop was dedicated to more hands-on activities in which groups had to define, sketch and prototype a citizen-led system or process that take advantage of open/public urban data. With a majority young architects, the focus was first based on “infrastructure”, “mobility”, “space”, but then rapidly also evolved around social issues and even political touching the Critical Cartography approach and critique. There was a lot to learn from the languages employed by participants with different practices (architects, social scientist, biologist, artist).

Finally, Sevilla provided an excellent context to ponder the hybrid city of the present. In addition to its rich history of mixed cultures, architectures and art, engineering work and south-european clichés, the city offers the vestiges of the techno-utopian Expo ‘92. The crumbling infrastructure at the Cartuja Island is source of fascinating sightseeing with an Ariane V on the loose and a monorail in advanced decomposition among other things. The theme for the Expo was “The Age of Discovery”. mmhmm.

Sevilla, a true hybrid city….

…with its real urban furnitures

Thanks José Luis for the invitation!

Related to my past project on Tracing the Visitor’s Eye and World’s Eyes, David Crandall and colleagues at Cornell have created global and city maps and identify popular snapping sites from photos uploaded on Flickr. They ran statistical analyses to identify the most important clusters of “”what the world is paying attention to”. Next they analysed the text tags added to photographs in those clusters, as well as key visual features from each image, to automatically find the world’s most interesting tourist sites. We find that visual and temporal features improve the ability to estimate the location of a photo, compared to using just textual features (slightly similar to IM2GPS: estimating geographic information from a single image). Their paper, Mapping the World’s Photos, recently presented at the WWW 2009 conference explains the process and results in more details.

Representative images for the top landmark in each of the top 20 European cities. All parts of the figure, including the representative images, textual labels, and even the map itself were produced automatically from our corpus of geo-tagged photos. Image courtesy of David Crandall. More on the project’s web page.
Relation to my thesis: Similar to my work, Crandall et al. I have used the spatial distribution of where people take photos to define a relation between the photos that are taken at popular places. I have used similar representations of spatio-temporal traces to illustrate my techniques and finding. However, my motivations has not been to improve photo management and organization applications (see also Mor Namaan’s work). Similar to Currid and Williams’ work on Mapping the Cultural Buzz, I employed georeferenced photos as a proxy to “qualify” the space (e.g. its attractiveness). But rather than mapping and qualifying a timeless space (Currid and Williams talk about “buzz-worthy” without referring to when), I particularly explore the temporal aspect of the data (see The End of Timelessness). For instance, in my work on the NYC Waterfalls, I studies the evolution of the density of georeferenced photos and the flows of photographers to provide evidences of the evolution of the attractiveness of the space (journal paper still in submission).

The Visualization of photographer movement in Manhattan mapped by Crandall is particularly stiking:

To produce these figures, we plotted the geolocated coordinates of sequences of images taken by the same user, sorted by time, for which consecutive photos were no more than 30 minutes apart. Image courtesy of David Crandall

Writing the conclusion of my dissertation, there is one implication of my research work that I still have not completely gotten my brain around. I will try to layout my thoughts here. I believe that one contribution of my work has been to reveal the new aspects of time with our relation to space through ubiquitous technologies. For instance, I have studied the co-evolution of a community of early adopters with their navigation system, the timely capture of travelers experiences, the potentials of spatio-temporal data shadows such as measuring the evolution of the attractiveness of the space. Each study shows that our relation with geoinformation (and by extension space) has been altered from our interactions with mobile and wireless technologies. The information is accessible and generated ubiquitously, augmenting our roles of sensors and actors of the space. This presence of what Adam Greenfield would refer to, in a more articulate manner, as the Big Now creates an utilitarian fascination to the real-time or the predictability as instantiated in my case study on “Detecting air travel in real time” from a mobile phone implicit interaction wireless networks (in submission). This fascination overshadows the end of our ephemeral relation with space potentially leading to a new version of the Internet Archive’s Wayback Machine and the presence of the hard/soft infrastructure design that does not take it into account.

I call it the end of timelessness. The end of the ephemeral, or what Adam Greenfield would describe as the Long Here, is mainly exposed in my work on Tracing the Visitor’s Eye and related. The observations of the presence of the hard infrastructures that deny the Long Here took place around the NYC Waterfalls study and the novel opportunity to define of indicators of the evolution of attractiveness of the space. Similarly, the ubiquitous technologies of the present, fail to accommodate for the Long Here, the change in the city and the implication on the social practices. Wearing qualitative lenses with a taxi drivers in Barcelona, I could observe co-evolutive ballet with their navigation system and extract the implications of the soft infrastructure on the knowledge of the city.

The embedment of urban informatics into the urban fabrics makes the integration of the Long Here in integral part of the design of hard and soft infrastructures. I would argue that this kind of case studies sets stage to the end of the timelessness considerations of individuals interactions with urban infrastructures. A satellite navigation system does not perform the same service the first six months in the practices of a inexperienced taxi drivers compared to a user with 20 year of knowledge of the city. Moreover, they do not, over time, request the same granularity of geoinformation nor do they assess the quality of the information with the same experience of the technology and knowledge of the city. A different kind of “long here” evolution of the presence and practices of that can be analyzed through their interactions with soft infrastructures to assess the quality of the spatial settings. This longitudinal understanding of the evolution of the interaction can then be applied to the design of the urban informatics. For instance, we made sure that our mobile phone algorithm to detect air travel was not perfect, as our system takes advantage of false detections to keep the survey participants with a certain level of involvement.

The evolution of the people practices, interactions and frictions with the urban space can be compiled very informally as Nicolas and I compiled in Sliding Friction and related. This kind of approach helps highlighting the reality, its complex dynamics, its subtleties, and its situational particularities. My research work suggests the combinations of more formal data collection and analysis approaches. They took the form of quantitative (reality mining), qualitative (ethno-inspired), mixed research methods to a more active, utility-driven mode with design science research.

New use of Bowling Green, the oldest public park in New York City

Now these approaches strongly contrast with the practice of architecture and urban design that almost utterly ignore this notion of time. For instance, from my understanding, there exist limited methods to capture and evaluate the user experience and the use of the built space. That makes me wonder wether since Stewart Brand’s How Buildings Learn (video of the BBC TV series inspired by the book) any progress has been made to integrate the complexifying intertwinement of hard infrastructures, soft infrastructures and individual/social practices into their design practices. 15 years ago, Frank Duffy explained that “architects have been slow to join the evaluation bandwagon, It’s got somewhat trapped in the academic field, I am afraid“. When considering the hybrid space with real-time elements, asynchronous communications and its logging capabilities of soft infrastrcture, it seems that the human/social elements with their evolution and adaptability find little consideration when in competition with aesthetic.

A bench to relax or work or both? between an ATM and a defibrillator at the cramped part of Logan airport

In consequence, as Steward Brand explains, “More often than not, the pull to conduct evaluations has come from client organizations, not from the architects themselves” also suggesting to collect feedback from facility manager to grasp the dimensions of time and use into building. In contrast, in the digital world, there is a greater tradition of analysing breadcrums to improve the design of web sites. Of course, nowadays, who and where are the facility managers in hybrid spaces?

The lack of consideration of the human in current practices of the designer of the hard infrastructures is particularly striking with the traditional aseptic graphics and medium to communicate them. But the competences to learn from the evolution of the infrastructure do not only require interpretative methods for human and social dynamics, but also for technological/intrastructural counterparts. For instance, 4 years ago, the analysis the players space-time trails in our pervasive game CatchBob! with a custom made “replay tool” necessitated technical knowledge to extract the technological issues of the ubiquitious infrastructures and its evolution. I would not expect this to be otherwise nowadays. This to exemplify that the ability to understand and properly bend the hard infrastructure will naturally come from cross-disciplinary teams that consider time in their practice. For instance, software engineering has been evolving in its practice to check the quality assurance throughout the life of a software (see Software that makes software better). The techniques aim at preventing from the software to break without running it (statistic analysis tools) and also detect when it breaks (dynamic analysis tools).

Consequence of unproper blackbox testing… Maybe an error caused by a 64 bit floating point number relating to the outdoor temperature respect to the wind conditions converted to a 16 bit signed integer

Relation to my thesis: Extract some contribution of my PhD thesis (the end of timelessness) to consider their implications on the evaluation of the evolution of the relation between the hard, the soft and the human in hybrid environments. From my experience, a mix of methods are necessary to grasp a world of fast-moving technology. This methods go beyond the current limited approaches of practitioners of the built space, to the exception of Post-occupency evaluations that introduce the dimensions of time and use into building. On the other hand, the practices of practitioners of the soft and digital world are evolving to take time and evolution into consideration. Of course that should lead to an improvement in: reliability, life-cycle behavior, environmental impact and user acceptance.

My research work sets the stage for tools and techniques to reveal evolution or repetitions, with observations and measures of expectation, initial frustration and delight, adjustment, and long-term adaptivity. I examply some elements in my taxi drivers study, the application of metrics as in new york and the collection of evidences “sliding frictions”.

On Tuesday, my work was presented in two different venue, in Hamburg at the GeoViz workshop on the Contribution of Geovisualization to the concept of the Digital City (thanks to Ayman Moghnieh for replacing me at the last minute!) and in Barcelona at Globalgeo in a forum on geoinformation and participation for sustainability (slides of the presentation). I stayed in Barcelona to meet some of the founders of the Vespucci Initiative and understand how my work integrates into the current trends and challenges in of geographic information science. Besides the acknowledgment of volunteer-generated information, it is still a very techno-driven field, that starts with technological capabilities of to collect, process and visualize data and after a few years having conference session with the title “So what?”. No doubt that this is one what that innovation happens, but I am always fascinated by the GIS community quest of the details (e.g. the perfect 3d models of a city) without much human perspective on “how good is good enough” and “for whom and what for”. Current concerns are rather on better organize the existing geospatial data (following the EU Inspire Directive), migrate them to Internet-based environments, make them ready for spatial analysis and visualization. In relation to that, spatial data should be considered as a medium, not a message. So far the community has overlooked the maintenance of the medium, for instance in failing in archiving data (e.g. we lack of the digital data from 10 years while we still still have analog data). In addition, there is paradigm shift that drives spatial analysis to show what is happening, not what it is, implying the development of 4d spatial analysis and visualizations systems.

The move into this Next Generation Digital Earth goes through the embracement of bottom-up spatial data infrastructures. Michael Goodchild made an effort in comparing the differences in quality, trust, timeliness and risks of volunteer generated information vs. authoritative information. He particularly talked about the contrast in the quality of the top-down (authority) data where inaccuracies are guaranteed and the bottom-up (assertion) data that tend to be more accurate in popular places (e.g. similar to Wikipedia). Therefore, authorities information must be verified through a process that can be slow. On the other hand, asserted information are generated in timely manner and people are willing to accept the false positive they generate (an angle that I could have explored in CatchBob). Through several examples (e.g. fire management in Santa Barbara), Goodchild showed the necessity to consider both accurate top-down information mixed with timely volunteer generation information (e.g. such as in Zagat). My work in New York certainly goes into that direction.

IFTF’s Anthony Townsend wrote an article that takes the New York City Waterfalls as context and the study I led on the evolution of the attractiveness of the waterfront as example of locative media, combined with the social media outlets of the web as enablers of public participation in public art (also see “Editer l’espace public” in Chronos).

Augmenting Public Space and Authoring Public Art: The Role of Locative Media (web - pdf)

Abstract: Locative media remain a useful frame for understanding how collaborative sensing will broadly empower groups to author alternative narratives of urban public space. The case of Olafur Eliasson’s New York City Waterfalls is used to describe this process in the context of a recent large public art work.

Anthony has some provoking thoughts that go right up to my alley in considering locative media provide a solid basis for investigating the larger implications of collaborative sensing and sensemaking. The example of the Waterfalls indicate that, in the future, artists will need to rethink how they engage the public as co-producers of public art and public. It implies the development of techniques and observations from both on passive activity sensing and pools of user-generated data (or as Anthony would say “the interplay between top-down systems of command and control versus bottom-up systems for collective action“). I would argue that this example with public art could extended to any kind of practice that touches the public spaces.

Relation to my thesis: “locative media will also extend our awareness of the urban condition” and “the next step of urban computing will be the development of platforms for making sense of these pools of user-generated data, and visualizing them in place.”