8,400 research outputs found
Social work and the environment: practice in the climate emergency
[Extract] Human wellbeing, indeed human existence, is entirely dependent on a healthy natural environment
A call to action: understanding the human impacts of the climate emergency
[Extract] Impacts of Climate Change
⢠More frequent and extreme heat
⢠Rising seas and increased coastal flooding
⢠Longer and more severe bushfires
⢠More frequent and more severe cyclones and storms
⢠Significant and widespread health impacts
⢠Destruction of marine ecosystems
⢠More severe droughts in some areas
⢠Impacts on groundwater supplies
⢠Disruption to food supplies
⢠Species extinctions (biodiversity loss
Measuring the impact of temporal context on video retrieval
In this paper we describe the findings from the K-Space interactive video search experiments in TRECVid 2007, which examined the effects of including temporal context in video retrieval. The traditional approach to presenting video search results is to maximise recall by offering a user as many potentially relevant shots as possible within a limited amount of time. âContextâ-oriented systems opt to allocate a portion of theresults presentation space to providing additional contextual cues about the returned results. In video retrieval these cues often include temporal information such as a shotâs location within the overall video broadcast and/or its neighbouring shots. We developed two interfaces with identical retrieval functionality in order to measure the effects of such context on user performance. The first system had a ârecall-orientedâ interface, where results from a query were presented as a ranked list of shots. The second was âcontextorientedâ, with results presented as a ranked list of broadcasts. 10 users participated in the experiments, of which 8 were novices and 2 experts. Participants completed a number of retrieval topics using both the recall-oriented and context-oriented systems
TRECVid 2007 experiments at Dublin City University
In this paper we describe our retrieval system and experiments performed for the automatic search task in TRECVid 2007. We submitted the following six automatic runs:
⢠F A 1 DCU-TextOnly6: Baseline run using only ASR/MT text features.
⢠F A 1 DCU-ImgBaseline4: Baseline visual expert only run, no ASR/MT used.
Made use of query-time generation of retrieval expert coefficients for fusion.
⢠F A 2 DCU-ImgOnlyEnt5: Automatic generation of retrieval expert coefficients for fusion at index time.
⢠F A 2 DCU-imgOnlyEntHigh3: Combination of coefficient generation which combined the coefficients generated by the query-time approach, and the index-time approach, with greater weight given to the index-time coefficient.
⢠F A 2 DCU-imgOnlyEntAuto2: As above, except that greater weight is given to the query-time coefficient that was generated.
⢠F A 2 DCU-autoMixed1: Query-time expert coefficient generation that used both visual and text experts
Longitudinal Spin Asymmetry and Cross Section of Inclusive pi0 Production in Polarized p+p Collisions at RHIC
We present the first measurement of the cross section and the double
longitudinal spin asymmetry of inclusive pi0 production in polarized p+p
collisions at Sqrt(s) = 200 GeV at mid-rapidity with the STAR detector, using
the barrel electromagnetic calorimeter. The measured cross section is compared
to NLO pQCD calculations and can provide constraints on the pion fragmentation
functions. Fragmentation is studied directly by measuring the momentum fraction
of pi0 in jets, a quantity that is affected by the fragmentation process and
jet reconstruction effects. The double longitudinal spin asymmetry is compared
to NLO pQCD calculations based on different assumptions for the gluon
polarization in the nucleon to provide constraints on delta g/g. At the present
level of statistics the measured asymmetry disfavors a large positive gluon
polarization, but can not yet distinguish between other scenarios.Comment: 4 pages, 2 figures, submitted to the proceedings of the 17th
International Spin Physics Symposium (SPIN2006), Kyoto, Japan, October 2 to
7, 200
An Integrated Tracker for STAR
The STAR experiment at the Relativistic Heavy Ion Collider RHIC studies the
new state of matter produced in relativistic heavy ion collisions and the spin
structure of the nucleon in collisions of polarized protons. In order to
improve the capabilities for heavy flavor measurements and the reconstruction
of charged vector bosons an upgrade of the tracking system both in the central
and the forward region is pursued. The integrated system providing high
resolution tracking and secondary vertex reconstruction capabilities will use
silicon pixel, strip and GEM technology.Comment: 4 pages, 2 figures, to be published in the Proceedings of the 9th
Conference on the Intersections of Particle and Nuclear Physics (CIPANP
2006), Rio Grande, Puerto Rico, May 30 - June 3, 200
Inclusive Hadron Production in p+p Collisions at STAR
The STAR experiment at RHIC has measured a variety of inclusive hadron cross
sections in collisions at Sqrt(s) = 200 GeV. Measurements of the
differential cross section for inclusive charged pion production at mid
rapidity and for inclusive neutral pion production at forward rapidity (3.0 <
eta < 4.2) as well as the first preliminary result from STAR for the
differential cross section for inclusive neutral pion production near mid
rapidity are presented. These cross sections are compared to next-to-leading
order perturbative QCD calculations and can provide constraints on the pion
fragmentation functions. Good agreement between data and pQCD has been found
for all three cross sections.Comment: 4 pages, 1 figure, to be published in the Proceedings of the 9th
Conference on the Intersections of Particle and Nuclear Physics (CIPANP
2006), Rio Grande, Puerto Rico, May 30 - June 3, 2006, v2 with updated
reference
Intercultural Learning: Critical Preparation for International Student Travel
These intercultural learning modules will develop your understanding of cultural difference, diversity and the critical perspectives that will add a new and important dimension to your international experience. Intercultural learning requires more than developing your understanding of cultural customs or dos and donâts. These modules will challenge you to think about the deeper issues of culture, race, imperialism, white privilege and cultural diversity that underpin all intercultural interactions. Intercultural learning also requires learning about ourselves. Approach these modules with an open mind and be prepared to critically reflect on your own perspectives, which shape your interpretation of intercultural experiences. Developing this critical perspective will prepare you to remain open to cultural difference, an important skill to establish as you set off on your intercultural experience
A user-centered approach to rushes summarisation via highlight-detected keyframes
We present our keyframe-based summary approach for BBC Rushes video as part of the TRECVid Summarisation benchmark evaluation carried out in 2007. We outline our approach to summarisation that uses video processing for feature extraction and is informed by human factors considerations for summary presentation. Based on the performance of our generated summaries as reported by NIST, we subsequently undertook detailed failure analysis of our approach. The findings of this investigation as well as recommendations for alterations to our keyframe-based summary generation method, and the evaluation methodology for Rushes summaries in general, are detailed within this paper
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