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In this work, we study self-supervised representation learning for 3D skeleton-based action recognition. We extend Bootstrap Your Own Latent (BYOL) for representation learning on skeleton sequence data and propose a new data augmentation strategy including two asymmetric transformation pipelines. We also introduce a multi-viewpoint sampling method that leverages multiple viewing angles of the same
Nonlinear group delay signals with frequency-varying characteristics are common in a wide variety of fields, for instance, structural health monitoring and fault diagnosis. For such applications, the signal is composed of multiple modes, where each mode may overlap in the frequency-domain. The resulting decomposition and forming of time-frequency representations of the nonlinear group delay modes
In this work, we introduce a novel approach for determining a joint sparse spectrum from several non-uniformly sampled data sets, where each data set is assumed to have its own, and only partially known, sampling times. The problem originates in paleoclimatology, where each data point derives from a separate ice core measurement, resulting in that even though all measurements reflect the same peri
The Petit Larousse illustré is a French dictionary first published in 1905. Its division in two main parts on language and on history and geography corresponds to a major milestone in French lexicography as well as a repository of general knowledge from this period. Although the value of many entries from 1905 remains intact, some descriptions now have a dimension that is more historical than cont
Not long ago the rise of monasticism was taken to be the creation of a Sonderwelt – an idea which also seemed to be reflected in the ancient literary material: the desert became a city of its own. However, a contradiction between city and monastery is often bridged by the very literature that created the rift, because texts travelled both ways – just as people did. In the context of this short con
This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete release of the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, which reached its goal of surveying over 10,000 nearby galaxies. The complete release of the MaNGA Stellar Library (MaStar) accompanies
In order to simplify the hyperelastic characterisation of rubber materials, an extension of the standard hardness test is proposed. A number of indentation depths are chosen for the hardness test and the indentation forces for these depths are recorded. By this modification, hyperelastic constants can be derived from the test, providing more information from the test by a small extra effort. Equiv
In this article, we propose a novel solution to detect multiple targets using a distributed multiple-input multiple-output (MIMO) radar under the so-called 'defocused transmit-defocused receive' operating mode. The proposed method employs a grid-based data matching algorithm, aiming to associate the target responses to potential target locations, solving the resulting data puzzle that evaluates th
The least absolute shrinkage and selection operator (LASSO) algorithm is a promising method for sparse source location in time–division multiplexing (TDM) multiple–input, multiple– output (MIMO) radar systems, with notable performance gains in regard to resolution enhancement and side lobe suppression. However, the current batch LASSO algorithm suffers from high– computational complexity when deal
Variational nonlinear chirp mode decomposition (VNCMD) is a recently introduced method for nonlinear chirp signal decomposition that has aroused notable attention in various fields. One limiting aspect of the method is that its performance relies heavily on the setting of the bandwidth parameter. To overcome this problem, we here propose a Bayesian implementation of the VNCMD, which can adaptively
In this paper, we describe the extraction of all the location entries from a prominent Swedish encyclopedia from the early 20th century, the Nordisk Familjebok 'Nordic Family Book.' We focused on the second edition called Uggleupplagan, which comprises 38 volumes and over 182,000 articles. This makes it one of the most extensive Swedish encyclopedias. Using a classifier, we first determined the ca
The axillary lymph node status remains an important prognostic factor in breast cancer, and nodal staging using sentinel lymph node biopsy (SLNB) is routine. Randomized clinical trials provide evidence supporting de-escalation of axillary surgery and omission of SLNB in patients at low risk. However, identifying sentinel lymph node macrometastases (macro-SLNMs) is crucial for planning treatment ta
Fram till 1 januari 2015 hade länsstyrelsen möjlighet att besluta om ”113-förordnande” enligt 6 kap. 5 § PBL. 113-förordnandet innebar att kommunen kunde ta mark i anspråk utan ersättning om det ansågs skäligt med hänsyn till den nytta som exploatören förväntades få av planens genomförande och till omständigheterna i övrigt. Hur mark för allmän plats ska värderas och ersättas regleras i 4 kap. 3a
This paper studies how Sylva Plath’s The Bell Jar can be read from a feminist perspective and, in turn, what some possible benefits and potential risks of teaching the novel and feminist literary criticism to upper secondary school students of English in Sweden are. This paper also discusses how the novel can be a means to discuss the fundamental values of upper secondary school, in terms of equal
Hållbarhet har under de senaste åren fått en allt större betydelse, då den globala uppvärmningen utgör en av vår tids största utmaningar. Fastighets- och byggsektorn står totalt för 40% av den totala energikonsumtionen i Europa. EU arbetar aktivt för att minska energiförbrukningen i byggnader genom direktivet om byggnaders energiprestanda (EPBD). Det långsiktiga målet med direktivet är att unionenSustainability has become increasingly important in recent years as global warming continues to be the most serious threat to our environment. The real estate sector accounts for 40 percent of the total energy consumption in Europe. To address this issue, the European Union initiated the Energy Performance of Buildings Directive (EPBD), which aims to reduce energy consumption and achieve a fully d
Situationen rörande undervattenskablar och ledningar är mer aktuella än någonsin. Med bakgrund i den allt snabbare digitaliseringen i världen, har denna typ av infrastruktur blivit allt viktigare givet dess användning för kommunikationstjänster och energitillgångar. Detta har gjort sådan infrastruktur en sårbar måltavla för hybridkrigföring. Under de senaste tre åren har sådana situationer utspelaThe situation regarding submarine cables and pipelines is more relevant than ever. As the world’s digitalisation keeps increasing, submarine infrastructure acquires more and more importance due to its vitality for communication services and energy reliability, thus becoming a vulnerable target for hybrid warfare. Such acts of deliberate sabotage have surged, with seven incidents being reported in
Sammanfattning Handeln har traditionell sett haft sitt fäste i stadskärnorna men har sedan 1990-talet haft en svag utveckling i jämförelse med externhandeln och e-handeln. Externhandeln är förvisso pressad av konkurrensen från andra handelsplatser men är fortfarande en tuff konkurrent till cityhandeln. Trots detta har externhandeln expanderat de senaste åren och numera finns det köpcentrum och hanTraditionally, city commerce has always had a strong foothold in Swedish cities. However, in recent years the city commerce has experienced a weaker growth in comparison with external shopping and e-commerce. While the external shopping sector is experiencing competition from its own sector and e-commerce and struggles with an over-supply of malls it’s still a tough competitor to city commerce. De
