Trajectory-Based Spatiotemporal Entity Linking

Trajectory-based spatiotemporal entity linking is to match the same moving object in different datasets based on their movement traces. It is a fundamental step to support spatiotemporal data integration and analysis. In this paper, we study the problem of spatiotemporal entity linking using effective and concise signatures extracted from their trajectories. This linking problem is formalized as a k-nearest neighbor (k-NN) query on the signatures. Four representation strategies (sequential, temporal, spatial, and spatiotemporal) and two quantitative criteria (commonality and unicity) are investigated for signature construction. A simple yet effective dimension reduction strategy is developed together with a novel indexing structure called the WR-tree to speed up the search. A number of optimization methods are proposed to improve the accuracy and robustness of the linking. Our extensive experiments on real-world datasets verify the superiority of our approach over the state-of-the-art solutions in terms of both accuracy and efficiency.Comment: 15 pages, 3 figures, 15 table

Why and How Your Traceability Should Evolve: Insights from an Automotive Supplier

Traceability is a key enabler of various activities in automotive software and systems engineering and required by several standards. However, most existing traceability management approaches do not consider that traceability is situated in constantly changing development contexts involving multiple stakeholders. Together with an automotive supplier, we analyzed how technology, business, and organizational factors raise the need for flexible traceability. We present how traceability can be evolved in the development lifecycle, from early elicitation of traceability needs to the implementation of mature traceability strategies. Moreover, we shed light on how traceability can be managed flexibly within an agile team and more formally when crossing team borders and organizational borders. Based on these insights, we present requirements for flexible tool solutions, supporting varying levels of data quality, change propagation, versioning, and organizational traceability.Comment: 9 pages, 3 figures, accepted in IEEE Softwar

Bakhtin as a theory of reading

Includes bibliographical references (p. 20

Massimiliano Balduzzi: Research in Physical Training for Performers

This essay begins the process of contextualizing and analyzing Massimiliano Balduzzi’s solo physical training practice by introducing six newly created video documents. It locates Balduzzi’s work in a wider historical and artistic context – touching upon the work of Konstantin Stanislavski, Jerzy Grotowski, and Eugenio Barba, as well as acrobatics, martial arts, and Balinese dance – while arguing that the documented physical training constitutes an original research contribution to the field of embodied technique. The essay has three main purposes: First, to give verbal articulation to some important aspects of Balduzzi’s practice, as he begins to teach more widely in New York City and beyond. Second, to test and develop a theoretical framework that conceives of embodied technique as a field of knowledge in which rigorously framed research can and does give rise to new knowledge in the form of new technique. Third, to explore the epistemological status of multimedia documentation through a focused case study. Each of these goals has the potential to expand and clarify current discussions of actor and performer training, movement analysis and documentation, and practice-as-research

Historical collaborative geocoding

The latest developments in digital have provided large data sets that can increasingly easily be accessed and used. These data sets often contain indirect localisation information, such as historical addresses. Historical geocoding is the process of transforming the indirect localisation information to direct localisation that can be placed on a map, which enables spatial analysis and cross-referencing. Many efficient geocoders exist for current addresses, but they do not deal with the temporal aspect and are based on a strict hierarchy (..., city, street, house number) that is hard or impossible to use with historical data. Indeed historical data are full of uncertainties (temporal aspect, semantic aspect, spatial precision, confidence in historical source, ...) that can not be resolved, as there is no way to go back in time to check. We propose an open source, open data, extensible solution for geocoding that is based on the building of gazetteers composed of geohistorical objects extracted from historical topographical maps. Once the gazetteers are available, geocoding an historical address is a matter of finding the geohistorical object in the gazetteers that is the best match to the historical address. The matching criteriae are customisable and include several dimensions (fuzzy semantic, fuzzy temporal, scale, spatial precision ...). As the goal is to facilitate historical work, we also propose web-based user interfaces that help geocode (one address or batch mode) and display over current or historical topographical maps, so that they can be checked and collaboratively edited. The system is tested on Paris city for the 19-20th centuries, shows high returns rate and is fast enough to be used interactively.Comment: WORKING PAPE

The Other

A meditation on how psychoanalysis, as the "only real discipline of the excessive," has an indispensable contribution to make in fathoming the "causeless hatred" of racism and bigotry that continues to plague the human species. Frosh cites both Lacan and Melanie Klein as theorists whose ideas seem so "breathtakingly mad" that their "continuing existence" can be explained only "as a sign or emblem of the wildness within," but he draws particularly on the work of Jean Laplanche and Judith Butler to propose that the other is formative of the subject, and hence should be accorded primacy both psychologically and ethically. Intriguingly, Frosh utilizes what might appear to be a relational premise to make a postmodernist argument that the consequent "ex-centric" location of psychic life enriches the subject but also-most notably under conditions of insecurity, oppression, and violence-creates an intense internal disturbance in which hatred of the other, felt to be entwined with the self, has a propensity to emerge

Geoscience after IT: Part J. Human requirements that shape the evolving geoscience information system

The geoscience record is constrained by the limitations of human thought and of the technology for handling information. IT can lead us away from the tyranny of older technology, but to find the right path, we need to understand our own limitations. Language, images, data and mathematical models, are tools for expressing and recording our ideas. Backed by intuition, they enable us to think in various modes, to build knowledge from information and create models as artificial views of a real world. Markup languages may accommodate more flexible and better connected records, and the object-oriented approach may help to match IT more closely to our thought processes