1,636 research outputs found
Fighting with the Sparsity of Synonymy Dictionaries
Graph-based synset induction methods, such as MaxMax and Watset, induce
synsets by performing a global clustering of a synonymy graph. However, such
methods are sensitive to the structure of the input synonymy graph: sparseness
of the input dictionary can substantially reduce the quality of the extracted
synsets. In this paper, we propose two different approaches designed to
alleviate the incompleteness of the input dictionaries. The first one performs
a pre-processing of the graph by adding missing edges, while the second one
performs a post-processing by merging similar synset clusters. We evaluate
these approaches on two datasets for the Russian language and discuss their
impact on the performance of synset induction methods. Finally, we perform an
extensive error analysis of each approach and discuss prominent alternative
methods for coping with the problem of the sparsity of the synonymy
dictionaries.Comment: In Proceedings of the 6th Conference on Analysis of Images, Social
Networks, and Texts (AIST'2017): Springer Lecture Notes in Computer Science
(LNCS
Experiments on enlarging a lexical ontology
This paper presents two simple experiments performed in order
to enlarge the coverage of PULO, a Lexical Ontology, based and
aligned with the Princeton WordNet.
The first experiment explores the
triangulation of the Galician, Catalan and Castillian wordnets,
with translation dictionaries from the Apertium project. The second,
explores Dicionário-Aberto entries, in order to extract synsets from
its definitions. Although similar approaches were already applied for
different languages, this document aims at documenting
their results for the PULO case
Revisão das Manifestações Extracutâneas da Esclerose Localizada
Morphea or localized scleroderma is a connective tissue disorder in which excess collagen deposition leads to the development of sclerotic lesions. Initially distinguished from systemic sclerosis by the absence of systemic manifestations, involvement limited to the skin and a relatively benign course, it is now known that localized sclerosis may be associated with multiple extracutaneous manifestations. This article reviews the musculoskeletal, neurological, ophthalmological, gastrointestinal, respiratory, cardiac and renal manifestations of this disease.A morfeia, ou esclerodermia localizada, é uma doença do tecido conjuntivo na qual o excesso de deposição de colagénio leva ao desenvolvimento de lesões escleróticas. Inicialmente distinguida da esclerose sistémica pela ausência de manifestações sistémicas, envolvimento limitado à pele e curso relativamente benigno, sabe-se actualmente que a esclerose localizada pode estar associada a múltiplas manifestações extracutâneas. No presente artigo faz-se uma revisão da literatura das manifestações extracutâneas associadas a esta doença, nomeadamente musculoesqueléticas, neurológicas, oftalmológicas, gastrointestinais, respiratórias, cardíacas e renais
Bootstrapping a Portuguese WordNet from Galician, Spanish and English wordnets
Series: Lecture notes in computer science, ISSN 0302-9743, vol. 8854In this article we exploit the possibility on bootstrapping
an European Portuguese WordNet from the English, Spanish and Galician
wordnets using
Probabilistic Translation Dictionaries automatically created from parallel corpora.
The process generated a total of 56~770 synsets and 97~058 variants.
An evaluation of the results using the Brazilian OpenWordNet-PT as a gold standard
resulted on a precision varying from 53\% to 75\% percent, depending on the
cut-line. The results were satisfying and comparable to similar experiments
using the WN-Toolkit.PEst-OE/EEI/UI0752/2014, TIN2012-38584-C06-01, TIN2012-38584-C06-0
Towards an Interoperable Ecosystem of Research Cohort and Real-world Data Catalogues Enabling Multi-center Studies
Objectives : Existing individual-level human data cover large populations on many dimensions such as lifestyle, demography, laboratory measures, clinical parameters, etc. Recent years have seen large investments in data catalogues to FAIRify data descriptions to capitalise on this great promise, i.e. make catalogue contents more Findable, Accessible, Interoperable and Reusable. However, their valuable diversity also created heterogeneity, which poses challenges to optimally exploit their richness. Methods : In this opinion review, we analyse catalogues for human subject research ranging from cohort studies to surveillance, administrative and healthcare records. Results : We observe that while these catalogues are heterogeneous, have various scopes, and use different terminologies, still the underlying concepts seem potentially harmonizable. We propose a unified framework to enable catalogue data sharing, with catalogues of multi-center cohorts nested as a special case in catalogues of real-world data sources. Moreover, we list recommendations to create an integrated community of metadata catalogues and an open catalogue ecosystem to sustain these efforts and maximise impact. Conclusions : We propose to embrace the autonomy of motivated catalogue teams and invest in their collaboration via minimal standardisation efforts such as clear data licensing, persistent identifiers for linking same records between catalogues, minimal metadata ‘common data elements’ using shared ontologies, symmetric architectures for data sharing (push/pull) with clear provenance tracks to process updates and acknowledge original contributors. And most importantly, we encourage the creation of environments for collaboration and resource sharing between catalogue developers, building on international networks such as OpenAIRE and research data alliance, as well as domain specific ESFRIs such as BBMRI and ELIXIR
Portuguese Football Federation consensus statement 2020: nutrition and performance in football
Nutrition is an undeniable part of promoting health and performance among football (soccer) players. Nevertheless, nutritional strategies adopted in elite football can vary significantly depending on culture, habit and practical constraints and might not always be supported by scientific evidence. Therefore, a group of 28 Portuguese experts on sports nutrition, sports science and sports medicine sought to discuss current practices in the elite football landscape and review the existing evidence on nutritional strategies to be applied when supporting football players. Starting from understanding football's physical and physiological demands, five different moments were identified: preparing to play, match-day, recovery after matches, between matches and during injury or rehabilitation periods. When applicable, specificities of nutritional support to young athletes and female players were also addressed. The result is a set of practical recommendations that gathered consensus among involved experts, highlighting carbohydrates periodisation, hydration and conscious use of dietary supplements.info:eu-repo/semantics/publishedVersio
Measurement of the cross-section and charge asymmetry of bosons produced in proton-proton collisions at TeV with the ATLAS detector
This paper presents measurements of the and cross-sections and the associated charge asymmetry as a
function of the absolute pseudorapidity of the decay muon. The data were
collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with
the ATLAS experiment at the LHC and correspond to a total integrated luminosity
of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements
varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the
1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured
with an uncertainty between 0.002 and 0.003. The results are compared with
predictions based on next-to-next-to-leading-order calculations with various
parton distribution functions and have the sensitivity to discriminate between
them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables,
submitted to EPJC. All figures including auxiliary figures are available at
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13
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