5,294 research outputs found
Sharpening and generalizations of Shafer's inequality for the arc tangent function
In this paper, we sharpen and generalize Shafer's inequality for the arc
tangent function. From this, some known results are refined
Salience and Market-aware Skill Extraction for Job Targeting
At LinkedIn, we want to create economic opportunity for everyone in the
global workforce. To make this happen, LinkedIn offers a reactive Job Search
system, and a proactive Jobs You May Be Interested In (JYMBII) system to match
the best candidates with their dream jobs. One of the most challenging tasks
for developing these systems is to properly extract important skill entities
from job postings and then target members with matched attributes. In this
work, we show that the commonly used text-based \emph{salience and
market-agnostic} skill extraction approach is sub-optimal because it only
considers skill mention and ignores the salient level of a skill and its market
dynamics, i.e., the market supply and demand influence on the importance of
skills. To address the above drawbacks, we present \model, our deployed
\emph{salience and market-aware} skill extraction system. The proposed \model
~shows promising results in improving the online performance of job
recommendation (JYMBII) ( job apply) and skill suggestions for job
posters ( suggestion rejection rate). Lastly, we present case studies to
show interesting insights that contrast traditional skill recognition method
and the proposed \model~from occupation, industry, country, and individual
skill levels. Based on the above promising results, we deployed the \model
~online to extract job targeting skills for all M job postings served at
LinkedIn.Comment: 9 pages, to appear in KDD202
Surface-wave solitons on the interface between a linear medium and a nonlocal nonlinear medium
We address the properties of surface-wave solitons on the interface between a
semi-infinite homogeneous linear medium and a semi-infinite homogeneous
nonlinear nonlocal medium. The stability, energy flow and FWHM of the surface
wave solitons can be affected by the degree of nonlocality of the nonlinear
medium. We find that the refractive index difference affects the power
distribution of the surface solitons in two media. We show that the different
boundary values at the interface can lead to the different peak position of the
surface solitons, but it can not influence the solitons stability with a
certain degree of nonlocality.Comment: 8 pages, 14 figures, 15 references, and so o
Easing Embedding Learning by Comprehensive Transcription of Heterogeneous Information Networks
Heterogeneous information networks (HINs) are ubiquitous in real-world
applications. In the meantime, network embedding has emerged as a convenient
tool to mine and learn from networked data. As a result, it is of interest to
develop HIN embedding methods. However, the heterogeneity in HINs introduces
not only rich information but also potentially incompatible semantics, which
poses special challenges to embedding learning in HINs. With the intention to
preserve the rich yet potentially incompatible information in HIN embedding, we
propose to study the problem of comprehensive transcription of heterogeneous
information networks. The comprehensive transcription of HINs also provides an
easy-to-use approach to unleash the power of HINs, since it requires no
additional supervision, expertise, or feature engineering. To cope with the
challenges in the comprehensive transcription of HINs, we propose the HEER
algorithm, which embeds HINs via edge representations that are further coupled
with properly-learned heterogeneous metrics. To corroborate the efficacy of
HEER, we conducted experiments on two large-scale real-words datasets with an
edge reconstruction task and multiple case studies. Experiment results
demonstrate the effectiveness of the proposed HEER model and the utility of
edge representations and heterogeneous metrics. The code and data are available
at https://github.com/GentleZhu/HEER.Comment: 10 pages. In Proceedings of the 24th ACM SIGKDD International
Conference on Knowledge Discovery and Data Mining, London, United Kingdom,
ACM, 201
Semileptonic Decays of Meson to a P-Wave Charmonium State or
The semileptonic decays of meson to a P-wave charmonium state
or are computed. The results show that the decays
are sizable so they are accessible in Tevatron and in LHC, especially, with the
detectors LHCB and BTeV in the foreseeable future, and of them, the one to the
charmonium state potentially offers us a novel window to see the
unconfirmed particle. In addition, it is pointed out that since the two
charmonium radiative decays have sizable
branching ratios, the cascade decays of the concerned decays and the charmonium
radiative decays may affect the result of the observing the meson through
the semileptonic decays substantially.Comment: 8 pages, 2 figure
A compilation of known QSOs for the Gaia mission
Quasars are essential for astrometric in the sense that they are spatial
stationary because of their large distance from the Sun. The European Space
Agency (ESA) space astrometric satellite Gaia is scanning the whole sky with
unprecedented accuracy up to a few muas level. However, Gaia's two fields of
view observations strategy may introduce a parallax bias in the Gaia catalog.
Since it presents no significant parallax, quasar is perfect nature object to
detect such bias. More importantly, quasars can be used to construct a
Celestial Reference Frame in the optical wavelengths in Gaia mission. In this
paper, we compile the most reliable quasars existing in literatures. The final
compilation (designated as Known Quasars Catalog for Gaia mission, KQCG)
contains 1843850 objects, among of them, 797632 objects are found in Gaia DR1
after cross-identifications. This catalog will be very useful in Gaia mission
DomainDrop: Suppressing Domain-Sensitive Channels for Domain Generalization
Deep Neural Networks have exhibited considerable success in various visual
tasks. However, when applied to unseen test datasets, state-of-the-art models
often suffer performance degradation due to domain shifts. In this paper, we
introduce a novel approach for domain generalization from a novel perspective
of enhancing the robustness of channels in feature maps to domain shifts. We
observe that models trained on source domains contain a substantial number of
channels that exhibit unstable activations across different domains, which are
inclined to capture domain-specific features and behave abnormally when exposed
to unseen target domains. To address the issue, we propose a DomainDrop
framework to continuously enhance the channel robustness to domain shifts,
where a domain discriminator is used to identify and drop unstable channels in
feature maps of each network layer during forward propagation. We theoretically
prove that our framework could effectively lower the generalization bound.
Extensive experiments on several benchmarks indicate that our framework
achieves state-of-the-art performance compared to other competing methods. Our
code is available at https://github.com/lingeringlight/DomainDrop.Comment: Accepted by ICCV2023. The code is available at
https://github.com/lingeringlight/DomainDro
ALOFT: A Lightweight MLP-like Architecture with Dynamic Low-frequency Transform for Domain Generalization
Domain generalization (DG) aims to learn a model that generalizes well to
unseen target domains utilizing multiple source domains without re-training.
Most existing DG works are based on convolutional neural networks (CNNs).
However, the local operation of the convolution kernel makes the model focus
too much on local representations (e.g., texture), which inherently causes the
model more prone to overfit to the source domains and hampers its
generalization ability. Recently, several MLP-based methods have achieved
promising results in supervised learning tasks by learning global interactions
among different patches of the image. Inspired by this, in this paper, we first
analyze the difference between CNN and MLP methods in DG and find that MLP
methods exhibit a better generalization ability because they can better capture
the global representations (e.g., structure) than CNN methods. Then, based on a
recent lightweight MLP method, we obtain a strong baseline that outperforms
most state-of-the-art CNN-based methods. The baseline can learn global
structure representations with a filter to suppress structure irrelevant
information in the frequency space. Moreover, we propose a dynAmic
LOw-Frequency spectrum Transform (ALOFT) that can perturb local texture
features while preserving global structure features, thus enabling the filter
to remove structure-irrelevant information sufficiently. Extensive experiments
on four benchmarks have demonstrated that our method can achieve great
performance improvement with a small number of parameters compared to SOTA
CNN-based DG methods. Our code is available at
https://github.com/lingeringlight/ALOFT/.Comment: Accepted by CVPR2023. The code is available at
https://github.com/lingeringlight/ALOFT
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