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1,423 results for “separation”
Relative Transfer Matrix for Low SNR Speech Separation from Noisy Sources in Reverberant Rooms
<p>This folder contains the supplementary audio files for the paper "Relative Transfer Matrix for Low SNR Speech Separation from Noisy Sources in Reverberant Rooms" submitted to <em>The Journal of the Acoustical Society of America</em>.</p>
MarkerScan: Separation and assembly of cobionts sequenced alongside target species in biodiversity genomics projects
<p>This dataset represents all results files described in the paper 'MarkerScan: Separation and assembly of cobionts sequenced alongside target species in biodiversity genomics projects'.</p>
The data and code for "Original Speech and Its Echo are Segregated and Separately Processed in the Human Brain"
<p>This dataset is associated with the manuscript "Original Speech and Its Echo are Segregated and Seperately Processed in the Human Brain", and provides the preprocessed MEG response (resampling to 100 Hz), auditory stimulus, individual quantitative observations underlying the data summarized in figures, and the analysis codes.</p>
Data from: Phosphorylation, disorder, and phase separation govern the behavior of Frequency in the fungal circadian clock
<p>Circadian clocks are composed of molecular oscillators that pace rhythms of gene expression to the diurnal cycle. Therein, transcriptional-translational negative feedback loops (TTFLs) generate oscillating levels of transcriptional repressor proteins that regulate their own gene expression. In the filamentous fungus Neurospora crassa, the proteins Frequency (FRQ), the FRQ-interacting RNA helicase (FRH) and Casein-Kinase I (CK1) form the FFC complex that represses expression of genes activated by the White-Collar complex (WCC). A key question concerns how FRQ orchestrates molecular interactions at the core of the clock despite containing little predicted tertiary structure. We present the reconstitution and biophysical characterization of FRQ and the FFC in unphosphorylated and highly phosphorylated states. Site-specific spin labeling and pulse-dipolar ESR spectroscopy provides domain-specific structural details on the full-length, 989-residue intrinsically disordered FRQ and the FFC. FRQ contains a compact core that associates and organizes FRH and CK1 to coordinate their roles in WCC repression. FRQ phosphorylation increases conformational flexibility and alters oligomeric state but the changes in structure and dynamics are non-uniform. Full-length FRQ undergoes liquid-liquid phase separation (LLPS) to sequester FRH and CK1 and influence CK1 enzymatic activity. Although FRQ phosphorylation favors LLPS, LLPS feeds back to reduce FRQ phosphorylation by CK1 at higher temperatures. Live imaging of Neurospora hyphae reveals FRQ foci characteristic of condensates near the nuclear periphery. Analogous clock repressor proteins in higher organisms share little position-specific sequence identity with FRQ; yet, they contain amino-acid compositions that promote LLPS. Hence, condensate formation may be a conserved feature of eukaryotic circadian clocks. </p>
Data for the manuscript "Correlation between two distant quasiparticles in separate superconducting islands mediated by a single spin"
<p>Data for the manuscript "Correlation between two distant quasiparticles in separate superconducting islands mediated by a single spin", https://doi.org/10.48550/arXiv.2203.00104</p> <p>The archive contains the experimental data and the results of numerical calculations as well as plotting scripts/notebooks for the figures presented in the manuscript.</p>
DCASE 2024 Task 9: Language-Queried Audio Source Separation | Validation Set
<p>This is the <strong>validation set for Task 9, Language-Queried Audio Source Separation (LASS), in DCASE 2024 Challenge</strong>. </p> <p>This validation split is meant to be used for Task 9 at the scientific challenge DCASE 2024. This split is not meant to be used for training LASS methods. This split is meant to be used for evaluating LASS methods during the model development stage.</p> <p>This validation set consists of 1000 audio files sourced from Freesound [1], uploaded between April and October 2023. Each audio file has been manually annotated with three captions. In the annotation guidance, we instructed annotators to describe the content of audio clips using 5-20 words (similar to the caption style in Clotho [3] and AudioCaps [4] datasets). The tags of each audio file were verified and revised according to the FSD50K [2] sound event categories. Each audio file has been chunked into a 10-second clip and downsampled to 16kHz.</p> <p><strong>== Details ==</strong></p> <p>The audio files in the archives:</p> <ul> <li>lass_validation.zip</li> </ul> <p>and the associated metadata (including tags and captions) in the JSON file:</p> <ul> <li>lass_validation.json</li> </ul> <p>Participants will evaluate their LASS models using synthetic mixture data in the development stage. Specifically, given an audio clip A1 and its corresponding caption C, we select an additional audio clip, A2, to serve as background noise, thereby creating a mixed audio, A3. We anticipate that the LASS system, given A3 and C as inputs, will be able to separate the A1 source. We use the revised tags information to ensure that the two audio clips used in each mix do not share overlapping sound source classes. Three thousand synthetic audio mixtures with signal-to-noise ratios (SNR) ranging from -15dB to 15dB will be generated for the validation of LASS model development. These synthetic mixtures can be generated based on the provided CSV file:</p> <ul> <li>lass_synthetic_validation.csv</li> </ul> <p>The evaluation tool can be found at: https://github.com/Audio-AGI/dcase2024_task9_baseline/blob/main/dcase_evaluator.py</p> <p><strong>== References ==</strong></p> <p>[1] Fonseca E, Pons Puig J, Favory X, et al. Freesound datasets: a platform for the creation of open audio datasets. International Society for Music Information Retrieval (ISMIR), 2017.</p> <p>[2] Fonseca E, Favory X, Pons J, et al. FSD50k: an open dataset of human-labeled sound events. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 2021, 30: 829-852.</p> <p>[3] Drossos K, Lipping S, Virtanen T. Clotho: An audio captioning dataset. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). 2020: 736-740.</p> <p>[4] Kim C D, Kim B, Lee H, et al. AudioCaps: Generating captions for audios in the wild. Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics (NAACL). 2019: 119-132.</p>
DCASE 2024 Task 9: Language-Queried Audio Source Separation | Development Set
<p><strong>== Description == </strong></p> <p>The development set is composed of audio samples from FSD50K [1] and Clotho v2 [2] datasets. FSD50K contains over 51k audio clips (~100 hours) manually labeled using 200 classes drawn from the AudioSet Ontology. For each audio clip in the FSD50K dataset, we generated one automatic caption for each audio clip by prompting ChatGPT (GPT-4) with its sound event tags. All audio files should be converted to mono 16 kHz audio for training LASS models. </p> <p>Clotho v2: <a href="../records/4783391">https://zenodo.org/records/4783391</a></p> <p>FSD50K: <a href="../records/4060432">https://zenodo.org/records/4060432</a></p> <p>Automatic captions generated for FSD50K:</p> <ul> <li>fsd50k_dev_auto_caption.json</li> <li>fsd50k_eval_auto_caption.json</li> </ul> <p>Prompt for generating captions:</p> <blockquote> <p>I will give you a number of lists containing sound events. Please write an one-sentence audio caption to describe these sounds.</p> <p>Make sure you are using grammatical subject-verb-object sentences. Directly describe the sounds and avoid using the word “heard”. Please don't describe the temporal order of these sound events. The caption should be less than 20 words.</p> </blockquote> <p>In addition to the development set, participants are free to use any external data (including private data) but are not allowed to use audio in Freesound uploaded between April and October 2023. Participants must specify all external resources utilized in their submission in the technical report.</p> <p><strong>== References ==</strong></p> <p>[1] Fonseca E, Favory X, Pons J, et al. FSD50k: an open dataset of human-labeled sound events. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 2021, 30: 829-852.</p> <p>[2] Drossos K, Lipping S, Virtanen T. Clotho: An audio captioning dataset. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). 2020: 736-740.</p> <p><strong>== Contact ==</strong></p> <p>Xubo Liu, xubo.liu@surrey.ac.uk</p>
Multiple Speaker Separation from Noisy Sources in Reverberant Rooms using Relative Transfer Matrix
<p>This folder is the supplementary audio files for the paper "Multiple Speaker Separation from Noisy Sources in<br>Reverberant Rooms using Relative Transfer Matrix" submitted to the European Signal Processing Conference (EUSIPCO).</p>
Multi-Scale Computational Screening to Accelerate Discovery of IL/COF Composites for Flue Gas Separation
<p>Covalent organic frameworks (COFs) have emerged as novel adsorbents and membranes for gas separation. Incorporation of ionic liquids (ILs) into COFs is important to exceed the current performance limits of COFs. However, synthesis and testing of a nearly unlimited number of IL/COF combinations are simply impractical. Herein, we used a multi-scale computational screening approach combining COnductor-like Screening MOdel for Realistic Solvents (COSMO-RS) method, Grand Canonical Monte Carlo (GCMC), molecular dynamics (MD) simulations, and density functional theory (DFT) calculations to unlock both the adsorption- and membrane-based CO<sub>2</sub>/N<sub>2 </sub>separation performances of IL/COF composites. Several adsorbent and membrane performance assessment metrics including selectivity, working capacity, regenerability, adsorbent performance score, and permeability were computed. Our results revealed that IL-incorporation into COFs significantly improved CO<sub>2</sub>/N<sub>2</sub> adsorption selectivities (from 12 to 26) and adsorbent performance scores (from 3.7 to 12 mol/kg). By performing DFT calculations, the nature of the interactions between CO<sub>2</sub>, N<sub>2</sub>, COFs and their IL-incorporated composites were evaluated. The high CO<sub>2</sub> selectivity of IL/COF composites was attributed to the cooperative intermolecular effects induced by the COF and the IL. Finally, IL/COF membranes were studied, and results showed that they achieve significantly higher CO<sub>2</sub> permeabilities (2.4 10<sup>4</sup>-9.4 10<sup>5</sup> Barrer) than polymeric and zeolite membranes and comparable selectivities (up to 15.7), which hold great promise to replace conventional materials in membrane-based flue gas separation applications. Our results will be useful in accelerating experimental efforts to design new IL/COF composites that can achieve high-performance CO<sub>2</sub> separation.</p>
Dusona_spp_Separation of third laterotergite
<p><strong>Figure 8</strong><strong>. </strong>Separation of third laterotergite. <strong>a.</strong> laterotergite completely fused with the tergite, its ventral edge thin and curved (<em>D. sobolicida</em>). <strong>b - f.</strong> laterotergite folded in anteriorly, separated from the tergite by a crease. <strong>b.</strong> <em>D. pugillator</em>; <strong>c.</strong> <em>D. insignita</em>; <strong>d.</strong> <em>D. stragifex</em>; <strong>e.</strong> <em>D. nidulator</em>; <strong>f.</strong> <em>D. leptogaster</em>. Blue bars indicate the lateral length of the third tergite. Green bars indicate the length of the crease separating the laterotergite from the tergite. Epipleural index = length of the crease / lateral length of the tergite. Scale bars indicate 0.5 mm.</p> <p>Publication: Open Access in a taxonomic sense: a morphological and molecular guide to Western Palearctic <em>Dusona </em>(Hymenoptera, Ichneumonidae)</p>
Overlooked costs of coloniality: Mislaid eggs and the double Incubation of separate nests
<p>The evolution of colonial breeding remains an outstanding question in evolutionary biology, in part due to our limited understanding of the costs and benefits of group living. We document 85 cases of Barn Swallows <em>Hirundo rustica erythrogaster</em> laying, and subsequently abandoning, eggs in empty, unclaimed nests located adjacent to active nests during a six-year study. The frequency of this behavior was positively correlated with total available nests, a metric that increases with colony size. In addition, two female swallows were observed alternately incubating multiple clutches after mislaying eggs in neighboring nests. We argue that the potential to mislay eggs and allocate parental care across separate nests may represent an overlooked cost of colonial nesting in birds.</p>
Data for "Spin-charge separation in a 1D Fermi gas with tunable interactions"
<p>This dataset is corresponding to the article "Spin-charge separation in a 1D Fermi gas with tunable interactions"</p>
All Hands on Deck' or Separate Lifeboats? Public support for European Economic Solidarity during the Covid-19 pandemic
<p>What are the sources of public support for international aid in times of crises? This paper<br> investigates the determinants of public support for the EU Covid-19 aid package (’NextGenera-<br> tionEU’, NGEU), the largest aid package in EU history. We show that although public support<br> for within-EU redistribution is influenced by long-standing factors such as ideology and citizen<br> identities, endorsement or opposition cues taken from elite actors are important determinants<br> of public support for aid in times of crises. Conversely, the effects of policy details about the<br> aid package are more mixed. Using what is to the best of our knowledge the first EU-wide<br> study on public opinion on the Covid-19 rescue package, our vignette experiment shows that<br> short-term shifts in support for the rescue package are driven mostly by elite endorsement<br> cues rather than information about the precise terms of aid or amount. We also find that the<br> role of elite endorsement cues varies across different subsets of the population depending on<br> their level of political sophistication, national level attachment and country context. Thus, in<br> the face of multidimensional decision-making in times of crises, national institutions are key<br> catalyst of moving short-term support for policies of international solidarity. We discuss how<br> our findings have implications for democratic governance and accountability in the EU.</p>
Morphological and molecular data support the separate species status of Syringa fauriei in Korea
<p><span><em>Syringa fauriei </em>is an unresolved lilac taxon (Oleaceae) native to specific geographical areas and present in the rivers and valleys of Gangwon province in South Korea. It was first identified on Mt. Geumgang by Faurie in 1906 and recognized as an independent species. Nevertheless, <em>S. fauriei </em>has been controversial as a synonymous species for <em>S. reticulata </em>subsp.<em> amurensis </em>without clear evidence. Therefore, we conducted this study on the taxonomic position of <em>S. fauriei</em> by examining the morphological and molecular differences between <em>S. fauriei </em>and its related taxa, the <em>S. reticulata</em> complex. Phylogenetic relationships were also inferred using molecular markers of nuclear ribosomal DNA internal transcribed spacer (ITS1–5.8S–ITS2; ITS) and external transcribed spacer regions. Consequently, <em>S. fauriei </em>and its related taxa were classified into two distinct clades: <em>S. fauriei</em> and the <em>S. reticulata </em>complex. Morphological and molecular data revealed that <em>S. fauriei </em>was endemic to Korea. The species characteristics of <em>S. fauriei </em>were further described for taxonomic re-establishment.</span></p>
Selectivity improvement of polysulfone-zeolite templated carbon membrane by annealing and coating treatment for CO2/CH4 and H2/CH4 separation
<p>Natural gas, which majorly consists of methane (CH4), is a renewable energy source widely used as fuel, as well as hydrogen (H2). However, in its production process of each gas containing other impurity gasses. Therefore, membrane technology is needed to separate the gasses from the impurities. Mixed Matrix Membrane (MMM) is a more promising membrane compared to the others. Zeolite Templated Carbon-based MMM offers a good separation performance because of ZTC's large surface area and well-defined pore structure. However, the interfacial void in MMM is challenging to be prevented, which contributes to the reduced separation performance. This study aims to enhance separation performance by modifying membrane surfaces using various methods. MMM PSF/ZTC modified by annealing at 120, 150, and 190 °C; coating using 0.01, 0.03, and 0.05 mol tetramethylorthosilicate (TMOS); and both combinations annealing at 190 °C and coating using 0.03 mol TMOS. MMM PSF/ZTC was successfully significantly improved CO2/CH4 selectivity by both combinations of annealed at 190 °C and coated 0.03 mol TMOS from 1.37 to 5.90 (331%) and H2/CH4 selectivity by coating with 0.03 mol TMOS from 4.58 to 65.76 (1378%). The enhancement of selectivity was due to structural changes of the membrane that was denser and smoother, which SEM and AFM observed. In this study, annealing and coating treatment are the methods that can use for improving the polymer matrix and filler particle adhesion.</p>
Dataset from: Sequence grammar underlying unfolding and phase separation of globular proteins
<p>Dataset related to the figures from the paper "Sequence grammar underlying unfolding and phase separation of globular proteins". The raw mass spectrometry proteomics data have been deposited via the PRIDE partner repository to the ProteomeXchange Consortium under the dataset identifier PXD033716. </p>
soundscape_IR: A source separation toolbox for exploring acoustic diversity in soundscapes
<p>1. Soundscapes contain rich acoustic information associated with animal behaviors, environmental characteristics, and human activities, providing opportunities for predicting biodiversity changes and associated drivers. However, assessing the diversity of animal vocalizations remains challenging due to the interference of environmental and anthropogenic noise. A tool for separating sound sources and delineating changes in acoustic signals is crucial for an effective assessment of acoustic diversity.</p> <p>2. We present soundscape_IR, an open-source Python toolbox dedicated to soundscape information retrieval in which non-negative matrix factorization is applied. This toolbox provides algorithms for supervised and unsupervised source separation (SS). It also enables the use of a snapshot recording for model training and subsequently applying adaptive and semi-supervised SS when target species produce sounds with varying features and when unseen sound sources are encountered.</p> <p>3. Our results demonstrated that SS could enhance the vocalizations of target species, characterize the complexity of vocal repertoires, and investigate the spatio-temporal divergence of soundscapes. In tropical forest soundscapes, the application of SS effectively detected the rutting vocalizations of sika deer and revealed a graded structure in their acoustic characteristics. In subtropical estuarine soundscapes, SS automated the process of identifying distinct biotic and abiotic sounds, and the result uncovered divergent sound compositions between inshore and offshore waters.</p> <p>4. Implementation of SS in soundscape analysis offers a promising method for streamlining the assessment of acoustic diversity in diverse environments. Future application of SS will open new directions to acoustically quantify ecological interactions across individual, species, and ecosystem levels.</p>
CrossNet-Open-Unmix for Music Source Separation (X-UMXL)
<p>Weights of CrossNet-Open-Unmix (X-UMX) trained on the internal 100h dataset which is larger than <a href="https://sigsep.github.io/datasets/musdb.html">MUSDB18</a>, named X-UMX Large (X-UMXL). The weights can be used with <a href="https://github.com/asteroid-team/asteroid/tree/master/egs/musdb18/X-UMX">X-UMX on Asteroid (PyTorch)</a>. The details of X-UMX are described in <a href="https://ieeexplore.ieee.org/document/9414044">here</a>.</p>
Figures 31-38. Adult female and adult male under separate leaves. 31 in Notes on the jumping spider Brettus cingulatus in Karnataka (Araneae: Salticidae: Spartaeini)
Figures 31-38. Adult female and adult male under separate leaves. 31, Later in the day the nest site occupied by the previous female was unoccupied. 32, This adult male was present under a leaf near the nest site. 33, Detail of (33). 34, Late on the next day this adult female occupied the nest site. Based on scale pattern this appears to be the female observed previously at this site (29-30). 35-38, On the next day this female continued to occupy the nest site (38, inset at lower right) as an adult male rested beneath a different leaf at a distance (38, inset at upper left).
Separability of human motor memories during reaching adaptation with force cues
<p><span>Judging by the breadth of our motor repertoire during daily activities, it is clear that learning different tasks is a hallmark of the human motor system. However, for reaching adaptation to different force fields, the conditions under which this is possible in laboratory settings have remained a challenging question. Previous work has shown that independent movement representations or goals enabled dual adaptation. Considering the importance of force feedback during limb control, here we hypothesised that independent cues delivered by means of background loads could support simultaneous adaptation to various velocity-dependent force fields, for identical kinematic plan and movement goal. We demonstrate in a series of experiments that indeed healthy adults can adapt to opposite force fields, independently of the direction of the background force cue. However, when the cue and force field were in the same direction but differed by their magnitude, the formation of different motor representations was still observed but the associated mechanism was subject to increased interference. Finally, we highlight that this paradigm allows dissociating trial-by-trial adaptation from online feedback adaptation, as these two mechanisms are associated with different time scales that can be identified reliably and reproduced in a computational model. </span></p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.