9 research outputs found
Participatory Sensing Based Real-time Public Transport Information Service
Abstract—Modern cities continuously struggle with infrastructural
problems especially when the population is massively growing.
One affected area is public transportation. In default of offering
convenient and reliable service the passengers tend to consider
other transport alternatives. However, even a relatively simple
functional enhancement, such as providing real-time timetable
information, requires considerable investment and effort following
traditional means, e.g. deploying sensors and building a
background communication and processing infrastructure. Using
the power of crowd to gather the required data, share information
and send feedback is a viable and cost effective alternative. In
this demonstration, we present TrafficInfo, our prototype smart
phone application to implement a participatory sensing based
live public transport information service. TrafficInfo visualizes
the actual position of public transport vehicles with live updates
on a map, and gives support to crowd sourced data collection
and passenger feedback
Live Public Transport Information Service Using Crowdsourced Data (Demo Paper)
Abstract—Infrastructural problems of modern cities cannot
be solved through sheer power of will alone. The public transportation
system is one of the most effected parts and as the
situation is degrading, more and more people become reluctant
to take public transport. The fine tuning of the system, or even
its restructuring, requires an immense amount of data, which
traditionally can only be collected via costly and time consuming
ways, like deploying sensors, conveying surveys, just to name a
few. Not to mention that during this process, the citizens do not
experience too much improvement, and become easily skeptical
concerning the outcomes. Is there really no other way? In this
demo, we present and demonstrate our approach to solve this
problem in the form of a smart phone application providing
real-time feedback on public transport, transits, and user-reviews
based on crowdsensing
Commonality and variation in mental representations of music revealed by a cross-cultural comparison of rhythm priors in 15 countries
Music is present in every known society but varies from place to place. What, if anything, is universal to music cognition? We measured a signature of mental representations of rhythm in 39 participant groups in 15 countries, spanning urban societies and Indigenous populations. Listeners reproduced random 'seed' rhythms; their reproductions were fed back as the stimulus (as in the game of 'telephone'), such that their biases (the prior) could be estimated from the distribution of reproductions. Every tested group showed a sparse prior with peaks at integer-ratio rhythms. However, the importance of different integer ratios varied across groups, often reflecting local musical practices. Our results suggest a common feature of music cognition: discrete rhythm 'categories' at small-integer ratios. These discrete representations plausibly stabilize musical systems in the face of cultural transmission but interact with culture-specific traditions to yield the diversity that is evident when mental representations are probed across many cultures. [Abstract copyright: © 2024. The Author(s).
Extending XNAT platform with an incremental semantic framework
Informatics increases the yield from neuroscience due to improved data. Data sharing and accessibility enable joint efforts between different research groups, as well as replication studies, pivotal for progress in the field. Research data archiving solutions are evolving rapidly to address these necessities, however, distributed data integration is still difficult because of the need of explicit agreements for disparate data models. To address these problems, ontologies are widely used in biomedical research to obtain common vocabularies and logical descriptions, but its application may suffer from scalability issues, domain bias, and loss of low-level data access. With the aim of improving the application of semantic models in biobanking systems, an incremental semantic framework that takes advantage of the latest advances in biomedical ontologies and the XNAT platform is designed and implemented. We follow a layered architecture that allows the alignment of multi-domain biomedical ontologies to manage data at different levels of abstraction. To illustrate this approach, the development is integrated in the JPND (EU Joint Program for Neurodegenerative Disease) APGeM project, focused on finding early biomarkers for Alzheimer's and other dementia related diseases
Commonality and variation in mental representations of music revealed by a cross-cultural comparison of rhythm priors in 15 countries
Music is present in every known society but varies from place to place. What, if anything, is universal to music cognition? We measured a signature of mental representations of rhythm in 39 participant groups in 15 countries, spanning urban societies and Indigenous populations. Listeners reproduced random ‘seed’ rhythms; their reproductions were fed back as the stimulus (as in the game of ‘telephone’), such that their biases (the prior) could be estimated from the distribution of reproductions. Every tested group showed a sparse prior with peaks at integer-ratio rhythms. However, the importance of different integer ratios varied across groups, often reflecting local musical practices. Our results suggest a common feature of music cognition: discrete rhythm ‘categories’ at small-integer ratios. These discrete representations plausibly stabilize musical systems in the face of cultural transmission but interact with culture-specific traditions to yield the diversity that is evident when mental representations are probed across many cultures
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Commonality and variation in mental representations of music revealed by a cross-cultural comparison of rhythm priors in 15 countries.
Music is present in every known society but varies from place to place. What, if anything, is universal to music cognition? We measured a signature of mental representations of rhythm in 39 participant groups in 15 countries, spanning urban societies and Indigenous populations. Listeners reproduced random 'seed' rhythms; their reproductions were fed back as the stimulus (as in the game of 'telephone'), such that their biases (the prior) could be estimated from the distribution of reproductions. Every tested group showed a sparse prior with peaks at integer-ratio rhythms. However, the importance of different integer ratios varied across groups, often reflecting local musical practices. Our results suggest a common feature of music cognition: discrete rhythm 'categories' at small-integer ratios. These discrete representations plausibly stabilize musical systems in the face of cultural transmission but interact with culture-specific traditions to yield the diversity that is evident when mental representations are probed across many cultures