4,692 research outputs found

    The FM and PL Libraries Documentation

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    Building complex SPMD code in an ecient and portable way is nowadays a challenge, especially when there is no uniformity of tools and libraries across platforms. The Fast Messages (FM) and the Portability Library (PL) where both designed to provide the basis of an abstract enough framework for C, so that problems can be coded and ported to any supported platform with no more than a few changes in the makeles and a recompilation. The FM library provides a message passing communications library built around the Berkeley Active Messages library. The PL library provides the primitives for host to node communication for problem initialization and results collection, as well as other miscellaneous and potentially non-portable primitives. This technical report contains the documentation for both libraries.Technical report LCSR-TR-25

    Introduction to Urban Science: Evidence and Theory of Cities as Complex Systems

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    Luís Bettencourt provides a timely, comprehensive, and rigorous treatment of urban space, by contributing to the advancement of knowledge in the field of urban science. The author develops a valuable scientific guide for researchers, policymakers, practitioners, and students interested in understanding cities as complex systems. Today, more than half of world's population lives in urban areas, and, according to theWorld Bank data, by 2045, urban citizens will increase up to 6 billion. Cities of different sizes will play a pivotal role in the postpandemic recovery and, most importantly, they will make the green transition of our economies and societies really work in coming years. Therefore, understanding “how each city and every one of its people is the result of the aggregation of many choices, accidents, and influences from their compounded joint history” (p. xxi) becomes crucial to manage present and future local and global challenges

    MultiEmo: Multilingual, Multilevel, Multidomain Sentiment Analysis Corpus of Consumer Reviews

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    MultiEmo, a new benchmark data set for the multilingual sentiment analysis task including 11 languages. The collection contains consumer reviews from four domains: medicine, hotels, products and university. The original reviews in Polish contained 8,216 documents consisting of 57,466 sentences. The reviews were manually annotated with sentiment at the level of the whole document and at the level of a sentence (3 annotators per element). We achieved a high Positive Specific Agreement value of 0.91 for texts and 0.88 for sentences. The collection was then translated automatically into English, Chinese, Italian, Japanese, Russian, German, Spanish, French, Dutch and Portuguese. MultiEmo is publicly available under a Creative Commons Attribution 4.0 International Licence. More information: https://github.com/CLARIN-PL/multiemo Citation: @inproceedings{kocon2021multiemo, title={Multiemo: Multilingual, multilevel, multidomain sentiment analysis corpus of consumer reviews}, author={Koco{\'n}, Jan and Mi{\l}kowski, Piotr and Kanclerz, Kamil}, booktitle={International Conference on Computational Science}, pages={297--312}, year={2021}, organization={Springer}

    The chain-level intersection product for PL pseudomanifolds revisited

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    Abstract We generalize the PL intersection product for chains on PL manifolds and for intersection chains on PL stratified pseudomanifolds to products of locally finite chains on non-compact spaces that are natural with respect to restriction to open sets. This is necessary to sheafify the intersection product, an essential step in proving duality between the Goresky-MacPherson intersection homology product and the intersection cohomology cup product pairing recently defined by the author and McClure. We also provide a correction to the Goresky-MacPherson proof of a version of Poincaré duality on pseudomanifolds that is used in the construction of the intersection product

    Prodromus Entomology : Natural History Of Lepidopterous Insects Of New South Wales ; Collected, Engraved, And Faithfully Painted After Nature / By John William Lewin, A.L.S. Of Paramatta, New South Wales. Published From The Hand Of His Brother Thomas Lewin ...

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    PRODROMUS ENTOMOLOGY : NATURAL HISTORY OF LEPIDOPTEROUS INSECTS OF NEW SOUTH WALES ; COLLECTED, ENGRAVED, AND FAITHFULLY PAINTED AFTER NATURE / BY JOHN WILLIAM LEWIN, A.L.S. OF PARAMATTA, NEW SOUTH WALES. PUBLISHED FROM THE HAND OF HIS BROTHER THOMAS LEWIN ... Prodromus Entomology : Natural History Of Lepidopterous Insects Of New South Wales ; Collected, Engraved, And Faithfully Painted After Nature / By John William Lewin, A.L.S. Of Paramatta, New South Wales. Published From The Hand Of His Brother Thomas Lewin ... (1) Cover (1) Frontispiz / Titelseite (10) Widmung (11) Preface (12) Phalaenoides Glycinae. Pl. 1. (14) Sphinx Ardenia. Pl. 2. (16) Sphinx Oldenlandiae. Pl. 3. (17) Bombyx Vulnerans. Pl. 4. (19) Bombyx Nasuta. Pl. 5. (20) Bombyx Lewinae. Pl. 6. (22) Bombyx Exposita. Pl. 7. (23) Bombyx Tristis. Pl. 8. (25) Bombyx Banksiae. Pl. 9. (26) Cryptophasa Irrorata. Pl. 10. (28) Cryptophasa Albacosta. Pl. 11. (29) Cryptophasa Rubescens. Pl. 12. (31) Cryptophasa Pultenae. Pl. 13. (32) Cryptophasa Strigata. Pl. 14. (34) Lithosa Replana. Pl. 15. (35) Hepialus Ligniveren. Pl. 16. (37) Tortrix Australana. Pl. 17. (38) Tinea Cossuna. Pl. 18. (40) Publication Prices (41

    Laplacian PL Image Evaluation Implying Correction of Photon Scattering in the Luminescence Detector

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    AbstractPhotoluminescence (PL) imaging is an established characterization method for investigating local inhomogeneities in solar cells. Conventional evaluation methods are based on the model of independent diodes, leading to wrong results of the local saturation current density J01. The Laplacian-based PL evaluation method does not rely on this model and has the potential to image J01 correctly. First attempts for using this method to evaluate PL images failed. In this contribution it is shown that the main reason for this failure was due to the light scattering effect occurring in the luminescence detector. Implying an image deconvolution procedure to the PL images with the correct point spread function, the result of the Laplacian-based evaluation method nearly shows the correct J01 distribution. It will be shown that the Laplacian-based method has also the potential to image the different dark current contributions (J01, J02 and ohmic) separately, as DLIT can do it already now

    Determining solubility for finitely generated groups of PL homeomorphisms

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    Funding: The first and second authors were partially supported by EPSRC grant EP/H011978/1. The third author was partially supported by grants from the Simons Foundation (#245625) and the National Science Foundation (DMS-1313559)The set of finitely generated subgroups of the group PL+(I) of orientation-preserving piecewise-linear homeomorphisms of the unitinterval includes many important groups, most notably R. Thompson’s group F. Here, we show that every finitely generated subgroup G < PL+(I) is either soluble, or contains an embedded copy of the finitely generated, non-soluble Brin-Navas group B, affirming a conjecture of the first author from 2009. In the case that G is soluble, we show the derived length of G is bounded above by the number of breakpoints of any finite set of generators. We specify a set of ‘computable’ subgroups of PL+(I) (which includes R. Thompson’s group F) and give an algorithm which determines whether or not a given finite subset X of such a computable group generates a soluble group. When the group is soluble, the algorithm also determines the derived length of ⟨X⟩. Finally,we give a solution of the membership problem for a particular familyof finitely generated soluble subgroups of any computable subgroup of PL+(I).Peer reviewe

    Fire investigation, 1636 Stanton Pl.

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    Paneling of outer wall of house torn away, electrical wires possible source of house fire
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