cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multiple Instance Learning: A Survey of Problem Characteristics and Applications
Creators: name: Carbonneau, Marc-André
name: Cheplygina, Veronika
name: Granger, Eric
name: Gagnon, Ghyslain
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Multiple instance learning (MIL) is a form of weakly supervised learning where training instances are arranged in sets, called bags, and a label is provided for the entire bag. This formulation is gaining interest because it naturally fits various problems and allows to leverage weakly labeled data. Consequently, it has been used in diverse application fields such as computer vision and document classification. However, learning from bags raises important challenges that are unique to MIL. This paper provides a comprehensive survey of the characteristics which define and differentiate the types of MIL problems. Until now, these problem characteristics have not been formally identified and described. As a result, the variations in performance of MIL algorithms from one data set to another are difficult to explain. In this paper, MIL problem characteristics are grouped into four broad categories: the composition of the bags, the types of data distribution, the ambiguity of instance labels, and the task to be performed. Methods specialized to address each category are reviewed. Then, the extent to which these characteristics manifest themselves in key MIL application areas are described. Finally, experiments are conducted to compare the performance of 16 state-of-the-art MIL methods on selected problem characteristics. This paper provides insight on how the problem characteristics affect MIL algorithms, recommendations for future benchmarking and promising avenues for research.
Through-the-Wall Radar Human Activity Micro-Doppler Signature Representation Method Based on Joint Boulic-Sinusoidal Pendulum Model
Creators: name: Yang, Xiaopeng
name: Gao, Weicheng
name: Qu, Xiaodong
name: Ma, Zeyu
name: Zhang, Hao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.5.1
subject: 94

description: With the help of micro-Doppler signature, ultra-wideband (UWB) through-the-wall radar (TWR) enables the reconstruction of range and velocity information of limb nodes to accurately identify indoor human activities. However, existing methods are usually trained and validated directly using range-time maps (RTM) and Doppler-time maps (DTM), which have high feature redundancy and poor generalization ability. In order to solve this problem, this paper proposes a human activity micro-Doppler signature representation method based on joint Boulic-sinusoidal pendulum motion model. In detail, this paper presents a simplified joint Boulic-sinusoidal pendulum human motion model by taking head, torso, both hands and feet into consideration improved from Boulic-Thalmann kinematic model. The paper also calculates the minimum number of key points needed to describe the Doppler and micro-Doppler information sufficiently. Both numerical simulations and experiments are conducted to verify the effectiveness. The results demonstrate that the proposed number of key points of micro-Doppler signature can precisely represent the indoor human limb node motion characteristics, and substantially improve the generalization capability of the existing methods for different testers.
description: 17 pages, 14 figures, 7 tables, in IEEE Transactions on Microwave Theory and Techniques, 2024
Constrained dynamics and confinement in the two-dimensional quantum Ising model
Creators: name: Pavešić, Luka
name: Jaschke, Daniel
name: Montangero, Simone
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the dynamics of the quantum Ising model on two-dimensional square lattices up to $16 \times 16$ spins. In the ordered phase, the model is predicted to exhibit dynamically constrained dynamics, leading to confinement of elementary excitations and slow thermalization. After demonstrating the signatures of confinement, we probe the dynamics of interfaces in the constrained regime through sudden quenches of product states with domains of opposite magnetization. We find that the nature of excitations can be captured by perturbation theory throughout the confining regime, and identify the crossover to the deconfining regime. We systematically explore the effect of the transverse field on the modes propagating along flat interfaces and investigate the crossover from resonant to diffusive melting of a square of flipped spins embedded in a larger lattice.
description: 5 pages, 4 figures + supplemental
Generative Model with Coordinate Metric Learning for Object Recognition Based on 3D Models
Creators: name: Wang, Yida
name: Deng, Weihong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Given large amount of real photos for training, Convolutional neural network shows excellent performance on object recognition tasks. However, the process of collecting data is so tedious and the background are also limited which makes it hard to establish a perfect database. In this paper, our generative model trained with synthetic images rendered from 3D models reduces the workload of data collection and limitation of conditions. Our structure is composed of two sub-networks: semantic foreground object reconstruction network based on Bayesian inference and classification network based on multi-triplet cost function for avoiding over-fitting problem on monotone surface and fully utilizing pose information by establishing sphere-like distribution of descriptors in each category which is helpful for recognition on regular photos according to poses, lighting condition, background and category information of rendered images. Firstly, our conjugate structure called generative model with metric learning utilizing additional foreground object channels generated from Bayesian rendering as the joint of two sub-networks. Multi-triplet cost function based on poses for object recognition are used for metric learning which makes it possible training a category classifier purely based on synthetic data. Secondly, we design a coordinate training strategy with the help of adaptive noises acting as corruption on input images to help both sub-networks benefit from each other and avoid inharmonious parameter tuning due to different convergence speed of two sub-networks. Our structure achieves the state of the art accuracy of over 50\% on ShapeNet database with data migration obstacle from synthetic images to real photos. This pipeline makes it applicable to do recognition on real images only based on 3D models.
description: 14 pages
Balanced supersaturation for some degenerate hypergraphs
Creators: name: Corsten, Jan
name: Tran, Tuan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A classical theorem of Simonovits from the 1980s asserts that every graph $G$ satisfying ${e(G) \gg v(G)^{1+1/k}}$ must contain $\gtrsim \left(\frac{e(G)}{v(G)}\right)^{2k}$ copies of $C_{2k}$. Recently, Morris and Saxton established a balanced version of Simonovits' theorem, showing that such $G$ has $\gtrsim \left(\frac{e(G)}{v(G)}\right)^{2k}$ copies of $C_{2k}$, which are `uniformly distributed' over the edges of $G$. Moreover, they used this result to obtain a sharp bound on the number of $C_{2k}$-free graphs via the container method. In this paper, we generalise Morris-Saxton's results for even cycles to $Θ$-graphs. We also prove analogous results for complete $r$-partite $r$-graphs.
description: 24 pages
Recursive strategy for decomposing Betti tables of complete intersections
Creators: name: Gibbons, Courtney R.
name: Huben, Robert
name: Stone, Branden
Publisher: name: arXiv
Year: 2017
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: We introduce a recursive decomposition algorithm for the Betti diagram of a complete intersection using the diagram of a complete intersection defined by a subset of the original generators. This alternative algorithm is the main tool that we use to investigate stability and compatibility of the Boij-Soederberg decompositions of related diagrams; indeed, when the biggest generating degree is sufficiently large, the alternative algorithm produces the Boij-Soederberg decomposition. We also provide a detailed analysis of the Boij-Soederberg decomposition for Betti diagrams of codimension four complete intersections where the largest generating degree satisfies the size condition.
On a randomized backward Euler method for nonlinear evolution equations with time-irregular coefficients
Creators: name: Eisenmann, Monika
name: Kovács, Mihály
name: Kruse, Raphael
name: Larsson, Stig
Publisher: name: arXiv
Year: 2017
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65C05, 65L05, 65L20, 65M12, 65M60

description: In this paper we introduce a randomized version of the backward Euler method, that is applicable to stiff ordinary differential equations and nonlinear evolution equations with time-irregular coefficients. In the finite-dimensional case, we consider Carathéodory type functions satisfying a one-sided Lipschitz condition. After investigating the well-posedness and the stability properties of the randomized scheme, we prove the convergence to the exact solution with a rate of $0.5$ in the root-mean-square norm assuming only that the coefficient function is square integrable with respect to the temporal parameter. These results are then extended to the numerical solution of infinite-dimensional evolution equations under monotonicity and Lipschitz conditions. Here we consider a combination of the randomized backward Euler scheme with a Galerkin finite element method. We obtain error estimates that correspond to the regularity of the exact solution. The practicability of the randomized scheme is also illustrated through several numerical experiments.
description: 37 pages, 3 figures
Bag-Level Aggregation for Multiple Instance Active Learning in Instance Classification Problems
Creators: name: Carbonneau, Marc-André
name: Granger, Eric
name: Gagnon, Ghyslain
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A growing number of applications, e.g. video surveillance and medical image analysis, require training recognition systems from large amounts of weakly annotated data while some targeted interactions with a domain expert are allowed to improve the training process. In such cases, active learning (AL) can reduce labeling costs for training a classifier by querying the expert to provide the labels of most informative instances. This paper focuses on AL methods for instance classification problems in multiple instance learning (MIL), where data is arranged into sets, called bags, that are weakly labeled. Most AL methods focus on single instance learning problems. These methods are not suitable for MIL problems because they cannot account for the bag structure of data. In this paper, new methods for bag-level aggregation of instance informativeness are proposed for multiple instance active learning (MIAL). The \textit{aggregated informativeness} method identifies the most informative instances based on classifier uncertainty, and queries bags incorporating the most information. The other proposed method, called \textit{cluster-based aggregative sampling}, clusters data hierarchically in the instance space. The informativeness of instances is assessed by considering bag labels, inferred instance labels, and the proportion of labels that remain to be discovered in clusters. Both proposed methods significantly outperform reference methods in extensive experiments using benchmark data from several application domains. Results indicate that using an appropriate strategy to address MIAL problems yields a significant reduction in the number of queries needed to achieve the same level of performance as single instance AL methods.
General Strong Polarization
Creators: name: Błasiok, Jarosław
name: Guruswami, Venkatesan
name: Nakkiran, Preetum
name: Rudra, Atri
name: Sudan, Madhu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Arikan's exciting discovery of polar codes has provided an altogether new way to efficiently achieve Shannon capacity. Given a (constant-sized) invertible matrix $M$, a family of polar codes can be associated with this matrix and its ability to approach capacity follows from the {\em polarization} of an associated $[0,1]$-bounded martingale, namely its convergence in the limit to either $0$ or $1$. Arikan showed polarization of the martingale associated with the matrix $G_2 = \left(\begin{matrix} 1& 0 1& 1\end{matrix}\right)$ to get capacity achieving codes. His analysis was later extended to all matrices $M$ that satisfy an obvious necessary condition for polarization. While Arikan's theorem does not guarantee that the codes achieve capacity at small blocklengths, it turns out that a "strong" analysis of the polarization of the underlying martingale would lead to such constructions. Indeed for the martingale associated with $G_2$ such a strong polarization was shown in two independent works ([Guruswami and Xia, IEEE IT '15] and [Hassani et al., IEEE IT '14]), resolving a major theoretical challenge of the efficient attainment of Shannon capacity. In this work we extend the result above to cover martingales associated with all matrices that satisfy the necessary condition for (weak) polarization. In addition to being vastly more general, our proofs of strong polarization are also simpler and modular. Specifically, our result shows strong polarization over all prime fields and leads to efficient capacity-achieving codes for arbitrary symmetric memoryless channels. We show how to use our analyses to achieve exponentially small error probabilities at lengths inverse polynomial in the gap to capacity. Indeed we show that we can essentially match any error probability with lengths that are only inverse polynomial in the gap to capacity.
description: 73 pages, 2 figures. The final version appeared in JACM. This paper combines results presented in preliminary form at STOC 2018 and RANDOM 2018
High Seebeck coefficient and ultra-low lattice thermal conductivity in Cs2InAgCl6
Creators: name: Haque, Enamul
name: Hossain, M. Anwar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The elastic, electronic and thermoelectric properties of indium-based double-perovskite halide, Cs2InAgCl6 have been studied by first principles study. The Cs2InAgCl6 is found to be elastically stable, ductile, anisotropic and relatively low hard material. The calculated direct bandgap 3.67 eV by TB-mBJ functional fairly agrees with the experimentally measured value 3.3 eV but PBE functional underestimates the bandgap by 1.483 eV. The relaxation time and lattice thermal conductivity have been calculated by using relaxation time approximation (RTA) within the supercell approach. The lattice thermal conductivity (\k{appa}l) is quite low (0.2 Wm-1K-1). The quite low phonon group velocity in the large weighted phase space, and high anharmonicity (large phonon scattering) are responsible for small \k{appa}l. The room temperature Seebeck coefficient is 199 μVK-1. Such high Seebeck coefficient arises from the combination of the flat conduction band and large bandgap. We obtain power factors at 300K by using PBE and TB-mBJ potentials are ~29 and ~31 mWm-1K-2, respectively and the corresponding thermoelectric figure of merit of Cs2BiAgCl6 are 0.71 and 0.72. However, the maximum ZT value obtained at 700K is ~0.74 by TB-mBJ potential. The obtained results implies that Cs2InAgCl6 is a promising material for thermoelectric device applications.
description: 19 pages. arXiv admin note: text overlap with arXiv:1801.03703
Highly Irregular Functional Generalized Linear Regression with Electronic Health Records
Creators: name: Petrovich, Justin
name: Reimherr, Matthew
name: Daymont, Carrie
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: This work presents a new approach, called MISFIT, for fitting generalized functional linear regression models with sparsely and irregularly sampled data. Current methods do not allow for consistent estimation unless one assumes that the number of observed points per curve grows sufficiently quickly with the sample size. In contrast, MISFIT is based on a multiple imputation framework, which has the potential to produce consistent estimates without such an assumption. Just as importantly, it propagates the uncertainty of not having completely observed curves, allowing for a more accurate assessment of the uncertainty of parameter estimates, something that most methods currently cannot accomplish. This work is motivated by a longitudinal study on macrocephaly, or atypically large head size, in which electronic medical records allow for the collection of a great deal of data. However, the sampling is highly variable from child to child. Using MISFIT we are able to clearly demonstrate that the development of pathologic conditions related to macrocephaly is associated with both the overall head circumference of the children as well as the velocity of their head growth.
description: 5 figures, 17 tables (including supplementary material), 34 pages (including supplementary material)
Impatientinum (Impatientinum) asiaticum Nevsky 1929
Creators: name: Zanfelici, Luiz Fernando Gonçalves
name: Murányi, Dávid
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aphididae
Impatientinum
Impatientinum asiaticum

description: Impatientinum (Impatientinum) asiaticum Nevsky, 1929
(Figs 14–17, 20)
 Material: Hungary, Heves county, Mátra Mts, Gyöngyössolymos, Lajosháza, oak forest, Impatiens parviflora DC., 370 m a.s.l., N 47.85993° E 19.93743°, leg. Sz. Czigány, A. & Z. Fehér, A. & D. Murányi, L. Tamás, 4.viii.2018, viviparous apterous females, viviparous alate females, larvae; Hungary, Heves county, Mátra Mts, Mátraszentimre-Fallóskút, wet forest by Mária Chapel, Impatiens parviflora DC., 725 m a.s.l., N 47.90966° E 19.84846°, leg. A. & D. Murányi, Á. Turóci, 31.vii.2019, viviparous apterous females, viviparous alate females, larvae; Hungary, Heves county, Eger, Pacsirta street, roadside, Impatiens sp. cultivated, 170 m a.s.l., N 47.89439° E 20.37514°, leg. D. Murányi, 14.xi.2019, viviparous apterous females, larvae; Hungary, Pest county, Visegrádi Mts, Visegrád, Apátkúti valley, roadside bush, Impatiens parviflora DC., 160 m a.s.l., N 47.77592° E 18.98592°, leg. D. Murányi, Á. Turóci, 11.x.2019, viviparous apterous females, viviparous alate females, larvae.
 Diagnosis. Dark greenish or reddish Impatientinum with mostly dark, striped legs, black siphunculi and pale cauda. Aptera with height of antennal tubercles 0.7–0.8 × length of first antennal segment; secondary rhinaria on antennal segments: III 4–7, IV 0, V 0; siphunculi with reticulation on the apical fourth, length 0.9 of head width across eyes; cauda with bluntly pointed apex; antennal PT/BASE 6.2–6.4.
 Distribution and ecology. Present on the undersides of leaves along main veins, and later in dense colonies on flower stalks, of Impatiens spp., especially I. parviflora. Most probably originated in Central Asia (Tien Shan), now widely distributed in Europe and Central Asia (Blackman & Eastop 2023). Monoecious holocyclic on balsams in Europe, with alate males. As noted above, the species was reported from the small balsam in Hungary (Ripka & Csiszár 2008, Ripka 2011). Those collected at Sopron are illustrated herein (Figs. 14–17). The new specimens were collected both from the small balsam and an undetermined cultivated species. The habitats were less natural than those of the I. balsamines populations. The colonies were not always ant-attended and were of variable size.
description: Published as part of Zanfelici, Luiz Fernando Gonçalves & Murányi, Dávid, 2023, Four new species of aphids (Hemiptera: Sternorrhyncha: Aphididae) for the Hungarian fauna, pp. 96-104 in Ecologica Montenegrina 63 on page 101, DOI: 10.37828/em.2023.63.9, http://zenodo.org/record/13246339
Cannabis related side effects in otolaryngology: a scoping review
Creators: name: Phulka, Jobanjit
name: Howlett, Joel
name: Hu, Amanda
Publisher: name: BioMed Central
Year: 2021

description: Background Cannabis has been rapidly legalized in North America; however, limited evidence exists around its side effects. Health Canada defines side effect as a harmful and unintended response to a health product. Given drug safety concerns, this study’s purpose was to review the unintended side effects of cannabis in otolaryngology. Methods The Preferred Reporting Items For Systematic Reviews and Meta-analysis extension for Scoping Reviews (PRISMA-ScR) protocol was used to conduct a scoping review of the MEDLINE, EMBASE, CINAHL, and CENTRAL databases. (PROSPERO: CRD42020153022). English studies in adults were included from inception to the end of 2019. In-vitro, animal, and studies with n < 5 were excluded. Primary outcome was defined as unintended side effects (defined as any Otolaryngology symptom or diagnosis) following cannabis use. Oxford Centre for Evidence-Based Medicine: Levels of Evidence and risk of bias using the Risk of Bias in randomized trials (RoB 2) and Risk of Bias in Non-Randomized Studies of Interventions (ROBINS-I) tools were assessed.. Two authors independently reviewed all studies; the senior author settled any discrepancies. Results Five hundred and twenty-one studies were screened; 48 studies were analysed. Subspecialties comprised: Head and Neck (32), Otology (8), Rhinology (5), Airway (5), Laryngology (1). Cannabis use was associated with unintended tinnitus, vertigo, hearing loss, infection, malignancy, sinusitis, allergic rhinitis, thyroid dysfunction, and dyspnea. About half (54.1%) of studies showed increased side effects, or no change in symptoms following cannabis use. Oxford Levels of Evidence was 2–4 with substantial heterogeneity. Risk of bias assessment with RoB2 was low to high and ROBINS-1 was moderate to critical. Conclusion This was the first comprehensive scoping review of unintended side effects of cannabis in Otolaryngology. The current literature is limited and lacks high-quality research Future randomized studies are needed to focus on therapeutic effects of cannabis in otolaryngology. Substantial work remains to guide clinicians to suggest safe, evidence-based choices for cannabis use. Graphic abstract
Sr4Os3O12- A Layered Osmate (V,VI) that is Magnetic close to Room Temperature
Creators: name: Thakur, Gohil S.
name: Hübner, Julia-Maria
name: Finzel, Kati
name: Doert, Thomas
name: Ruck, Michael
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Black crystals of the mixed-valence osmate(V,VI) Sr4Os3O12 were grown via a gas phase reaction in an evacuated silica tube. The material is attracted to a permanent magnet at room temperature (295 K) but loses this property when heated or cooled. In this temperature interval, soft magnetic behavior with vanishing coercivity is observed, but the saturation magnetization is only 0.05 MuB per formula unit. Resistivity measurements show that Sr4Os3O12 is a semiconductor with a small band gap of about 0.26 eV at room temperature. X-ray diffraction on a single-crystal revealed a rhombohedral structure with the space group R-3m and lattice parameters ar = 554.64(2) pm and cr = 2700.1(1) pm at 300(1) K. The compound crystallizes in the La4Ti3O12 structure type and is isostructural to Sr4CoRe2O12. The structure is a rhombohedral stack of layered blocks, each of which can be considered as a section of three layers of the cubic perovskite structure cut perpendicular to one of its threefold axes. The Os-O-Os bond angle of about 175{/deg} favors superexchange that leads to antiferromagnetic coupling between the osmium atoms with 5d3 and 5d2 configurations. Sr4Os3O12 exhibits strong lattice dynamics. One aspect is the antiferro-rotative lattice modes of the corner-sharing [OsO6] octahedra, which freeze upon cooling. At 100 K, an ordered, yet twinned triclinic superstructure is formed. Strong spin-orbit coupling and other effects cause deformations of the [OsO6] octahedra that differ significantly at 300 K and 100 K, suggesting a change in the electronic configuration. Competing ground states could also explain the temperature dependent band gap and the magnetic fluctuations manifested in the magnetization peak at room temperature.
description: Accepted for publication in ZAAC (9 pages and 9 figures)
Staticobium gmelini Bozhko 1950
Creators: name: Zanfelici, Luiz Fernando Gonçalves
name: Murányi, Dávid
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aphididae
Staticobium
Staticobium gmelini

description: Staticobium gmelini Bozhko, 1950
(Figs 21–22, 25–26)
 Material: Hungary, Pest county, Farmos, dry sodic grassland, Limonium gmelini subsp. hungaricum (Klokov)Soó, 100 m a.s.l., N 47.3703° E 19.8420°, leg. J. Kontschán, D. Murányi, G. Ripka, 2.viii.2017, viviparous apterous females, larvae.
 Diagnosis. Brownish green Staticobium with white cauda, striped legs and antennae. Dorsal abdomen with very small and inconspicuous hairs, not placed on individual sclerites. Siphunculi slender and well reticulated, mostly black but with pale base, length 1.8 × cauda; cauda with few hairs. Antennal segment III with longest hairs 0.3 of its width; antennal PT/BASE 5.8.
 Distribution and ecology. Of Holartic distribution, Staticobium spp lives without host alternation on Plumbaginaceae. This genera seem to be highly host-specific and is not visited by ants. Staticobium gmelini is present on flower stalks and root collars of Limonium and Goniolimon spp., and known from Slovakia, Ukraine, Russia and Kazakhstan. Three further East European and Central Asian species are probable synonyms of S. gmelini, according to Kadyrbekov (2003) and Blackman & Eastop (2023). In Hungary, the only aphid reported from the Siberian statice is Staticobium latifoliae (Bozhko, 1950), collected on the Great Plain (Szelegiewicz 1968, 1981). Specimens collected at Hódmezővásárhely are illustrated for comparison (Figs. 23–24) – the two species have clearly different setation. The colony of S. gmelini was not ant attended. Larvae were grouped on the underside of leaves, while adults were alone on the root neck. At the time of the collection, the sodic grassland was extremely dry due to a long, very hot summer season.
description: Published as part of Zanfelici, Luiz Fernando Gonçalves & Murányi, Dávid, 2023, Four new species of aphids (Hemiptera: Sternorrhyncha: Aphididae) for the Hungarian fauna, pp. 96-104 in Ecologica Montenegrina 63 on page 101, DOI: 10.37828/em.2023.63.9, http://zenodo.org/record/13246339
First-principles prediction of phonon-mediated superconductivity in XBC (X= Mg, Ca, Sr, Ba)
Creators: name: Haque, Enamul
name: Hossain, M. Anwar
name: Stampfl, Catherine
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: From first-principles calculations, we predict four new intercalated hexagonal $X$BC ($X$=Mg, Ca, Sr, Ba) compounds to be dynamically stable and phonon-mediated superconductors. These compounds form a LiBC like structure but are metallic. The calculated superconducting critical temperature, $T{_c}$, of MgBC is 51 K. The strong attractive interaction between $σ$-bonding electrons and the B${_{1g}}$ phonon mode gives rise to a larger electron-phonon coupling constant (1.135) and hence high $T_c$; notably, higher than that of MgB$_2$. The other compounds have a low superconducting critical temperature (4-17 K) due to the interaction between $σ$-bonding electrons and low energy phonons (E${_{2u}}$ modes). Due to their energetic and dynamic stability, we envisage that these compounds can be synthesized experimentally.
description: 7 pages, 6 figures
Dynamic mode decomposition in vector-valued reproducing kernel Hilbert spaces for extracting dynamical structure among observables
Creators: name: Fujii, Keisuke
name: Kawahara, Yoshinobu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Dynamical Systems (math.DS)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Understanding nonlinear dynamical systems (NLDSs) is challenging in a variety of engineering and scientific fields. Dynamic mode decomposition (DMD), which is a numerical algorithm for the spectral analysis of Koopman operators, has been attracting attention as a way of obtaining global modal descriptions of NLDSs without requiring explicit prior knowledge. However, since existing DMD algorithms are in principle formulated based on the concatenation of scalar observables, it is not directly applicable to data with dependent structures among observables, which take, for example, the form of a sequence of graphs. In this paper, we formulate Koopman spectral analysis for NLDSs with structures among observables and propose an estimation algorithm for this problem. This method can extract and visualize the underlying low-dimensional global dynamics of NLDSs with structures among observables from data, which can be useful in understanding the underlying dynamics of such NLDSs. To this end, we first formulate the problem of estimating spectra of the Koopman operator defined in vector-valued reproducing kernel Hilbert spaces, and then develop an estimation procedure for this problem by reformulating tensor-based DMD. As a special case of our method, we propose the method named as Graph DMD, which is a numerical algorithm for Koopman spectral analysis of graph dynamical systems, using a sequence of adjacency matrices. We investigate the empirical performance of our method by using synthetic and real-world data.
description: 34 pages with 4 figures, Published in Neural Networks, 2019
Adversarial Semantic Scene Completion from a Single Depth Image
Creators: name: Wang, Yida
name: Tan, David Joseph
name: Navab, Nassir
name: Tombari, Federico
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose a method to reconstruct, complete and semantically label a 3D scene from a single input depth image. We improve the accuracy of the regressed semantic 3D maps by a novel architecture based on adversarial learning. In particular, we suggest using multiple adversarial loss terms that not only enforce realistic outputs with respect to the ground truth, but also an effective embedding of the internal features. This is done by correlating the latent features of the encoder working on partial 2.5D data with the latent features extracted from a variational 3D auto-encoder trained to reconstruct the complete semantic scene. In addition, differently from other approaches that operate entirely through 3D convolutions, at test time we retain the original 2.5D structure of the input during downsampling to improve the effectiveness of the internal representation of our model. We test our approach on the main benchmark datasets for semantic scene completion to qualitatively and quantitatively assess the effectiveness of our proposal.
description: 2018 International Conference on 3D Vision (3DV)
DFT based study on structural stability and transport properties of Sr3AsN: A potential thermoelectric material
Creators: name: Haque, Enamul
name: Hossain, M. Anwar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Antiperovskite materials are well known for their high thermoelectric performance and gained huge research interest. Here, we report the structural stability and transport properties of Sr$_3$AsN from a precise first-principles study. The calculated equilibrium lattice parameters are in a good agreement with the available data. We find that Sr$_3$AsN is a mechanically, energetically and dynamically stable at ambient condition. Our calculated electronic structure indicates that it is a direct bandgap semiconductor, with a value ~1.2 eV. Sr-4d and N-2p orbitals mainly formulate the direct bandgap. This antiperovskite possesses a high Seebeck coefficient. Although its lattice thermal conductivity is comparatively low, electronic thermal conductivity is very high. The calculated maximum TE figure of merit is 0.75 at 700 K, indicating that it is a potential material for thermoelectric applications.
description: 22 pages, 11 figures
Kalimantanossus kongkeo Yakovlev, Prozorov, Prozorova & Müller, 2023, sp. n.
Creators: name: Yakovlev, Roman V.
name: Prozorov, Alexey M.
name: Prozorova, Tatiana A.
name: Müller, Günter C.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Cossidae
Kalimantanossus
Kalimantanossus kongkeo

description: Kalimantanossus kongkeo sp. n.
Type locality: Laos, Xiangkhouang Province, Phonsavan.
Type material (Holotype, male) in coll. Günter Müller, Freising.
Distribution: Central Laos.
description: Published as part of Yakovlev, Roman V., Prozorov, Alexey M., Prozorova, Tatiana A. & Müller, Günter C., 2023, New species of Kalimantanossus Yakovlev, 2011 (Lepidoptera, Cossidae: Cossinae) from Laos with the genus catalogue, pp. 154-159 in Ecologica Montenegrina 69 on page 157, DOI: 10.37828/em.2023.69.15, http://zenodo.org/record/13246438
A greedy algorithm for optimal heating in powder-bed-based additive manufacturing
Creators: name: Forslund, Robert
name: Snis, Anders
name: Larsson, Stig
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Powder-bed-based additive manufacturing involves melting of a powder bed using a moving laser or electron beam as a heat source. In this paper, we formulate an optimization scheme that aims to control this type of melting. The goal consists of tracking maximum temperatures on lines that run along the beam path. Time-dependent beam parameters (more specifically, beam power, spot size, and speed) act as control functions. The scheme is greedy in the sense that it exploits local properties of the melt pool in order to divide a large optimization problem into several small ones. As illustrated by numerical examples, the scheme can resolve heat conduction issues such as concentrated heat accumulation at turning points and non-uniform melt depths.
Microwave excitations and hysteretic magnetization dynamics of stripe domain films
Creators: name: Liu, Meihong
name: Li, Qiuyue
name: Song, Chengkun
name: Feng, Hongmei
name: Song, Yawen
name: Zhong, Lei
name: Pan, Lining
name: Zhao, Chenbo
name: Li, Qiang
name: Xu, Jie
name: Li, Shandong
name: Wang, Jianbo
name: Liu, Qingfang
name: Cao, Derang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: FeNi films with the stripe domain (SD) pattern are prepared by electrodeposition and sputtering methods. The magnetic domain, static magnetic parameters, and quality factor, as well as dynamic properties of the two films, are respectively performed. The results show the magnetizations of the film were dependent on the direction of SD, and the rotation of the SD is lagging behind the magnetization reversal. The microwave properties of the SD emerge dynamic hysteresis before the saturation magnetic field. These microwave properties are selectively excited with acoustic mode, optical mode, and spin-wave mode. The frequency and intensity of different resonance modes of stripe domain are determined by the local magnetization. The magnetization variations and the rotation of SD of different modes are further illuminated by the micromagnetic simulation. The magnetic anisotropy and the resonance intensity of permeability of different modes were finally described by the modified resonance equations.
description: 10 pages, 9 figures
Enumeration and Asymptotic Formulas for Rectangular Partitions of the Hypercube
Creators: name: Au, Yu Hin
name: Bagherzadeh, Fatemeh
name: Bremner, Murray R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: K-Theory and Homology (math.KT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: We study a two-parameter generalization of the Catalan numbers: $C_{d,p}(n)$ is the number of ways to subdivide the $d$-dimensional hypercube into $n$ rectangular blocks using orthogonal partitions of fixed arity $p$. Bremner \& Dotsenko introduced $C_{d,p}(n)$ in their work on Boardman--Vogt tensor products of operads; they used homological algebra to prove a recursive formula and a functional equation. We express $C_{d,p}(n)$ as simple finite sums, and determine their growth rate and asymptotic behaviour. We give an elementary proof of the functional equation, using a bijection between hypercube decompositions and a family of full $p$-ary trees. Our results generalize the well-known correspondence between Catalan numbers and full binary trees.
High performance photonic microwave filters based on a 50GHz optical soliton crystal Kerr micro-comb
Creators: name: Xu, X.
name: Tan, M.
name: Wu, J.
name: Nguyen, T.
name: Chu, S. T.
name: Little, B. E.
name: Morandotti, R.
name: Mitchell, A.
name: Moss, D. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a photonic radio frequency (RF) transversal filter based on an integrated optical micro-comb source featuring a record low free spectral range of 49 GHz yielding 80 micro-comb lines across the C-band. This record-high number of taps, or wavelengths for the transversal filter results in significantly increased performance including a QRF factor more than four times higher than previous results. Further, by employing both positive and negative taps, an improved out-of-band rejection of up to 48.9 dB is demonstrated using Gaussian apodization, together with a tunable centre frequency covering the RF spectra range, with a widely tunable 3-dB bandwidth and versatile dynamically adjustable filter shapes. Our experimental results match well with theory, showing that our transversal filter is a competitive solution to implement advanced adaptive RF filters with broad operational bandwidths, high frequency selectivity, high reconfigurability, and potentially reduced cost and footprint. This approach is promising for applications in modern radar and communications systems.
description: 19 pages, 12 figures, 107 references, Winner IEEE JLT 2019 Paper of the Year Revised - references updated and links to award websites added
First-principles prediction of extraordinary thermoelectric efficiency in superionic Li2SnX3(X=S,Se)
Creators: name: Haque, Enamul
name: Cazorla, Claudio
name: Hossain, M. Anwar
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thermoelectric materials create an electric potential when subject to a temperature gradient and vice versa hence they can be used to harvest waste heat into electricity and in thermal management applications. However, finding highly efficient thermoelectrics with high figures of merit, zT$\geq$1, is very challenging because the combination of high power factor and low thermal conductivity is rare in materials. Here, we use first-principles methods to analyze the thermoelectric properties of Li$_2$Sn$X_3$ ($X$=S,Se), a recently synthesized class of lithium fast-ion conductors presenting high thermal stability. In p-type Li$_2$Sn$X_3$, we estimate highly flat electronic valence bands that render high Seebeck coefficients exceeding 400 $μ$VK$^{-1}$ at 700K. In n-type Li$_2$Sn$X_3$, the electronic conduction bands are slightly dispersive however the accompanying weak electron-acoustic phonon scattering induces high electrical conductivity. The combination of high Seebeck coefficient and electrical conductivity gives rise to high power factors, reaching a maximum of 4 mWm$^{-1}$K$^{-2}$ in p-type Li$_2$SnS$_3$ and 8 mWm$^{-1}$K$^{-2}$ in n-type Li$_2$SnSe$_3$ at 300 K. Likewise, the thermal conductivity in Li$_2$Sn$X_3$ is low as compared to conventional thermoelectric materials, 2-5 Wm$^{-1}$K$^{-1}$ at room temperature. As a result, we estimate a maximum zT = 1.05 in p-type Li$_2$SnS$_3$ at 700 K and an extraordinary 3.07 (1.5) in n-type Li$_2$SnSe$_3$ at the same temperature (300 K). Our findings of huge zT in Li$_2$Sn$X_3$ suggest that lithium fast-ion conductors, typically employed as electrolytes in solid-state batteries, hold exceptional promise as thermoelectric materials.
description: 21 Pages
Kalimantanossus microgenitalis
Creators: name: Yakovlev, Roman V.
name: Prozorov, Alexey M.
name: Prozorova, Tatiana A.
name: Müller, Günter C.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Cossidae
Kalimantanossus
Kalimantanossus microgenitalis

description: Kalimantanossus microgenitalis (Yakovlev, 2004)
Figs 2−5, 7
 Paracossus microgenitalis Yakovlev, 2004, Atalanta 35 (3/4): 374, pl. XIX: 7, text fig. 8−9. Type locality: Borneo S., Sabah prov., Trus Madi bei, Apin Apin [5°26ʹ N / 116°27ʹ E].
Type material (Holotype, male) in Museum Witt, Munich, Germany), examined.
Distribution: Borneo Island, Sabah Province.
description: Published as part of Yakovlev, Roman V., Prozorov, Alexey M., Prozorova, Tatiana A. & Müller, Günter C., 2023, New species of Kalimantanossus Yakovlev, 2011 (Lepidoptera, Cossidae: Cossinae) from Laos with the genus catalogue, pp. 154-159 in Ecologica Montenegrina 69 on page 157, DOI: 10.37828/em.2023.69.15, http://zenodo.org/record/13246438
Health-Related Quality of Life (HRQoL) Outcomes Following Injury in Childhood and Adolescence Using EuroQol (EQ-5D) Responses with Pooled Longitudinal Data
Creators: name: Dipnall, Joanna F.
name: Rivara, Frederick P.
name: Lyons, Ronan A.
name: Ameratunga, Shanthi
name: Brussoni, Mariana
name: Lecky, Fiona E.
name: Bradley, Clare
name: Beck, Ben
name: Lyons, Jane
name: Schneeberg, Amy
name: Harrison, James E.
name: Gabbe, Belinda J.
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2021

description: Background: Injury is a leading contributor to the global disease burden in children, affecting their health-related quality of life (HRQoL)—yet valid estimates of burden are absent. Methods: This study pooled longitudinal data from five cohort studies of pediatric injury survivors (5–17 years) at baseline, 1-, 4-, 6-, 12-, and 24- months (n = 2334). HRQoL post-injury was measured using the 3-level EQ-5D utility score (EQ-5D) and five health states (mobility, self-care, activity, pain, anxiety and depression (anxiety)). Results: Mean EQ-5D post-injury did not return to baseline level (0.95) by 24 months (0.88) and was lower for females over time (−0.04, 95%CI −0.05, −0.02). A decreased adjusted risk ratio over time (ARR) was observed for intentional injuries (pain: 0.85, 95%CI 0.73,0.98; anxiety: 0.62, 95%CI 0.49,0.78); spinal cord injuries (mobility: 0.61, 95%CI 0.45,0.83), self-care: 0.76, 95%CI 0.63,0.91, activity: 0.64, 95%CI 0.47,0.88); moderate/severe traumatic brain injury (activity: 0.83, 95%CI 0.71,0.96). ARRs were also low for certain fractures, with various health states affected. Conclusions: HRQoL outcomes over time for children and adolescents post-injury differed across key demographic and injury related attributes. HRQoL did not reach levels consistent with full health by 24 months with recovery plateauing from 6 to 24 months. Tailored interventions are required to respond to the varying post-injury recovery trajectories in this population.
Isolation and Struggle to Belong: Older Korean-Australian Migrants’ Managing Emotions through Homeland Digital Media
Creators: name: Roh, Jaekyung
Publisher: name: Monash University
Year: 2025
Subjects: classificationCode: 470101
subject: Communication studies

description: This doctoral thesis examines how older Korean-Australian migrants navigate adjustment challenges and foster social and emotional connections by managing their emotions through the use of homeland digital media. The research is intended to enhance understanding of the difficulties faced by socially vulnerable migrant groups and their struggle to develop a sense of belonging in a multicultural host society.
Error estimates of the backward Euler-Maruyama method for multi-valued stochastic differential equations
Creators: name: Eisenmann, Monika
name: Kovács, Mihály
name: Kruse, Raphael
name: Larsson, Stig
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65C30, 60H10, 34A60

description: In this paper, we derive error estimates of the backward Euler-Maruyama method applied to multi-valued stochastic differential equations. An important example of such an equation is a stochastic gradient flow whose associated potential is not continuously differentiable, but assumed to be convex. We show that the backward Euler-Maruyama method is well-defined and convergent of order at least $1/4$ with respect to the root-mean-square norm. Our error analysis relies on techniques for deterministic problems developed in [Nochetto, Savaré, and Verdi, Comm.\ Pure Appl.\ Math., 2000]. We verify that our setting applies to an overdamped Langevin equation with a discontinuous gradient and to a spatially semi-discrete approximation of the stochastic $p$-Laplace equation.