Research
On-device research index

arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,181 papers · 148 categories

Trend · papers per month

481216 · Jul 201719922001200920182026
48 results for DCASE 2016

This paper analyzes sound event detection in synthetic office audio, comparing different systems.

problem Comparing sound event detection systems in synthetic office audio.
method Analysis of systems submitted to DCASE 2016 task, using synthetic office sounds.
result Statistical analysis of results, highlighting system performance under controlled conditions.

Enhances ASC using time- and frequency-liked CNNs and bilinear pooling.

problem Improving acoustic scene classification accuracy.
method Harmonic and percussive source separation, two-stream CNN architecture, bilinear pooling.
result Improved accuracy on DCASE 2019 sub task 1a dataset.

DCASE 2022 Task 2 tackles domain shifts in ASD for machine condition monitoring.

problem Domain shifts change acoustic characteristics, affecting ASD performance.
method Domain generalization techniques to detect anomalies across unknown domains.
result Two types of domain generalization techniques were identified and analyzed.

DCASE 2021 ASD task tackles domain-shifted anomalous sound detection.

problem Detecting unknown anomalous sounds under domain-shifted conditions.
method Ensemble of outlier exposure and inlier modeling detectors, feature learning from machine identification.
result Two types of remarkable approaches were adopted by top teams.

Study improves CNNs for audio scene classification by restricting receptive fields and adding frequency awareness.

problem Improving CNNs for robust acoustic scene classification.
method Investigated different receptive field configurations for various CNN architectures and introduced Frequency Aware CNNs.
result Several well-performing submissions to DCASE 2019 Challenge were achieved.

CNNs improve generalization to unseen audio devices with increased width, not depth.

problem CNNs are sensitive to specific audio recording devices in acoustic scene classification.
method Investigated the relationship between over-parameterization and generalization in CNNs for audio classification.
result Increasing width improves generalization to unseen devices without increasing the number of parameters.

New dataset for industrial machine malfunction detection with domain shifts.

problem Challenges in detecting anomalies due to domain shifts in industrial sounds.
method Created a dataset with domain shifts for five types of industrial machines.
result Significant performance differences between source and target domains.

System tackles indeterminacies in automated audio captioning.

problem Word selection and sentence length indeterminacies in automated audio captioning.
method Solves caption generation and sub-indeterminacy problems through multi-task learning to estimate keywords and sentence length.
result Model achieved 20.7 SPIDEr score, significantly outperforming baseline.

End-to-end DA method for domain-invariant CNNs using parallel audio recordings.

problem Distribution mismatches between training and application data in machine listening.
method Enforcing equal hidden layer representations for domain-parallel samples.
result Learn domain-invariant classifiers without requiring classification labels.

We present proofs of classical results in Poisson geometry using techniques from Dirac geometry. This article is based on mini-courses at the Poisson summer school in Geneva, June 2016, and at the workshop "Quantum Groups and Gravity" at the University of Waterloo, April 2016.

2016-12-02abs ↗pdf ↗

A framework traces ideology changes on social media during the 2016 U.S. election.

problem Understanding how ideology changed on social media during the 2016 U.S. election.
method Jointly estimating ideology of users and news sites, tracing changes over time.
result Both liberal and conservative users became more polarized over time.

Study reveals why polls were inaccurate in 2016 US election.

problem Why opinion polls were inaccurate in 2016 US election.
method Proposes clean sensing framework for optimal parameter estimation from heterogeneous data sources.
result Optimal polling strategy allocates resources based on data quality and quantity.

Weight normalization and reparametrized gradient descent adaptively regularize weights and converge to minimum l2 norm solutions.

problem Adapting to non-convex weight normalization for convergence to minimum l2 norm solutions.
method Weight normalization and reparametrized projected gradient descent (rPGD) for overparametrized least-squares regression.
result rPGD converges close to the minimum l2 norm solution, even for far-from-zero initializations.

DVAE++ uses overlapping distributions to train discrete latent variables.

problem Training discrete latent variable models with gradient information.
method Proposes a new class of smoothing transformations based on a mixture of two overlapping distributions.
result Overlapping transformations outperform other recent methods in training discrete latent variables.

In the present paper we prove Liouville-type theorems: non-existence theorems for conformal mappings of complete Riemannian manifolds. In addition, we give an application of these results to the theory of conharmonic transformations. A part of these results was announced in our reports on the conferences "Differential …

2016-08-04abs ↗pdf ↗

Paper discusses ASD challenge for machine condition monitoring.

problem Detecting unknown anomalous sounds without labeled data.
method Design and evaluation of a large-scale ASD dataset, novel approaches.
result Several novel approaches developed, evaluation results analyzed.

This is a write-up of the author's talk in the conference "Algebraic Geometry in East Asia 2016" held at the University of Tokyo in January 2016. We give a survey on a series of papers of the author and his collaborators Daniel Pomerleano and Kazushi Ueda where we show how Strominger-Yau-Zaslow (SYZ) transforms can be …

2016-07-25abs ↗pdf ↗

This paper presents the Intelligent Voice (IV) system submitted to the NIST 2016 Speaker Recognition Evaluation (SRE). The primary emphasis of SRE this year was on developing speaker recognition technology which is robust for novel languages that are much more heterogeneous than those used in the current state-of-the-a…

2016-11-02abs ↗pdf ↗

Self-supervised attention model improves weakly labeled audio event classification.

problem Efficiently classify audio events with minimal labeled data.
method Develops a self-supervised attention model for weakly labeled audio clips.
result Self-supervised attention model performs comparably to strongly supervised model trained with strong labels.

Chernozhukov, Chetverikov, Demirer, Duflo, Hansen, and Newey (2016) provide a generic double/de-biased machine learning (DML) approach for obtaining valid inferential statements about focal parameters, using Neyman-orthogonal scores and cross-fitting, in settings where nuisance parameters are estimated using a new gene…

2017-01-30abs ↗pdf ↗

The paper proves formulas for capillary surfaces and applies them to inequalities and area estimates.

problem Understanding capillary surfaces and their properties.
method Established monotonicity formulas for capillary surfaces in half-space and unit ball.
result Extended Li-Yau-type inequalities and optimal area estimates for capillary surfaces.

Mutual info trees show higher risk in Brazilian equity network during transition.

problem Identifying nonlinear dependencies in Brazilian equity network.
method Used mutual information minimum spanning trees to compare with linear correlation.
result Mutual info trees indicate higher risk and power law tail in volatility transmission.

Improves Graph Convolutional Network performance on citation datasets.

problem Improving Graph Convolutional Network performance on citation datasets.
method Exploring graph regularization and alternative graph convolution approaches.
result Explicit graph regularization was incorrectly rejected by Kipf & Welling (2016).

Between 2003 and 2015 the prices of apartments in Hong Kong (adjusted for inflation) increased by a factor of 3.8. This is much higher than in the United States prior to the so-called subprime crisis of 2007. The analysis of this speculative episode confirms the mechanism and regularities already highlighted by the pre…

2016-08-13abs ↗pdf ↗

In [Tohoku Math. J. 62 (2010), 45--53] the second author showed that, except for a few cases, the order NN of a cyclic group of self-homeomorphisms of a closed orientable topological surface SgS_g of genus g2g \geq 2 determines the group up to a topological conjugation, provided that N3gN\geq 3g. The first author et al…

2017-02-08abs ↗pdf ↗

In recent times, the use of separable convolutions in deep convolutional neural network architectures has been explored. Several researchers, most notably (Chollet, 2016) and (Ghosh, 2017) have used separable convolutions in their deep architectures and have demonstrated state of the art or close to state of the art pe…

2017-01-16abs ↗pdf ↗

We consider two stage estimation with a non-parametric first stage and a generalized method of moments second stage, in a simpler setting than (Chernozhukov et al. 2016). We give an alternative proof of the theorem given in (Chernozhukov et al. 2016) that orthogonal second stage moments, sample splitting and n1/4n^{1/4}-…

2017-04-12abs ↗pdf ↗

We give a complete classification of conformally covariant differential operators between the spaces of ii-forms on the sphere SnS^n and jj-forms on the totally geodesic hypersphere Sn1S^{n-1}. Moreover, we find explicit formulæ for these new matrix-valued operators in the flat coordinates in terms of basic operators …

2016-05-30abs ↗pdf ↗