Zobrazeno 1 - 10
of 797
pro vyhledávání: '"P. Alvey"'
Model misspecification analysis strategies, such as anomaly detection, model validation, and model comparison are a key component of scientific model development. Over the last few years, there has been a rapid rise in the use of simulation-based inf
Externí odkaz:
http://arxiv.org/abs/2412.15100
Autor:
Lin, Alvey Qianli, Zhang, Zhiwen
In this paper, we provide an optimisation approach motivated by the Blind Source Separation, or also known as Independent Component Analysis, for cointegration between financial time series. Two methods for cointegration tests are introduced, namely
Externí odkaz:
http://arxiv.org/abs/2409.02552
Variations in the instrumental noise of the Laser Interferometer Space Antenna (LISA) over time are expected as a result of e.g. scheduled satellite operations or unscheduled glitches. We demonstrate that these fluctuations can be leveraged to improv
Externí odkaz:
http://arxiv.org/abs/2408.00832
Folk wisdom dictates that a lower bound on the dark matter particle mass, $m$, can be obtained by demanding that the de Broglie wavelength in a given galaxy must be smaller than the virial radius of the galaxy, leading to $m\gtrsim 10^{-22}\text{ eV}
Externí odkaz:
http://arxiv.org/abs/2405.20374
Scaling laws for large language models (LLMs) have provided useful guidance on how to train ever larger models for predictable performance gains. Time series forecasting shares a similar sequential structure to language, and is amenable to large-scal
Externí odkaz:
http://arxiv.org/abs/2405.13867
The next generation of space- and ground-based facilities promise to reveal an entirely new picture of the gravitational wave sky: thousands of galactic and extragalactic binary signals, as well as stochastic gravitational wave backgrounds (SGWBs) of
Externí odkaz:
http://arxiv.org/abs/2309.07954
In recent years, there has been a remarkable development of simulation-based inference (SBI) algorithms, and they have now been applied across a wide range of astrophysical and cosmological analyses. There are a number of key advantages to these meth
Externí odkaz:
http://arxiv.org/abs/2308.08597
The gravitational wave sky is starting to become very crowded, with the fourth science run (O4) at LIGO expected to detect $\mathcal{O}(100)$ compact object coalescence signals. Data analysis issues start to arise as we look further forwards, however
Externí odkaz:
http://arxiv.org/abs/2308.06318
The current and upcoming generations of gravitational wave experiments represent an exciting step forward in terms of detector sensitivity and performance. For example, key upgrades at the LIGO, Virgo and KAGRA facilities will see the next observing
Externí odkaz:
http://arxiv.org/abs/2304.02035
Stellar streams are potentially a very sensitive observational probe of galactic astrophysics, as well as the dark matter population in the Milky Way. On the other hand, performing a detailed, high-fidelity statistical analysis of these objects is ch
Externí odkaz:
http://arxiv.org/abs/2304.02032