337 results
Relevance Newest Most Cited
HLXiON δ Ω Intent Σ Logic Ψ Synth Π Reason Γ Memory Processing: stat.CO
iON AI Synthesis
The search results for "stat.CO" highlight diverse applications of statistical methods in various fields. In brain research, a study emphasizes the need to rigorously account for negative edges in fMRI-derived brain connectomes to better understand brain function modularity. In finance, studies focus on analyzing recurrence intervals in high-frequency trading and trading volumes, aiding in risk estimation. Meanwhile, in decentralized finance, QLAMMP explores optimizing fees in Automated Market Makers using Q-learning, and in biology, quantum approaches to adaptive mutations in bacteria are compared, utilizing a 'fluctuation trapping' framework.
Ask iON more → 📚 Find Papers
arxiv.org
The Importance of Being Negative: A serious treatment of non-trivial edges in brain functional connectome

Understanding the modularity of fMRI-derived brain networks or connectomes can inform the study of brain function organization. However, fMRI connectomes additionally involve negative edges, which are not rigorously accounted for by existing approaches to modularity that either ignores or arbitraril…

q-bio.QM q-bio.NC
arxiv.org
Recurrence interval analysis of high-frequency financial returns and its application to risk estimation

We investigate the probability distributions of the recurrence intervals $τ$ between consecutive 1-min returns above a positive threshold $q>0$ or below a negative threshold $q<0$ of two indices and 20 individual stocks in China's stock market. The distributions of recurrence intervals for positive…

q-fin.ST q-fin.RM
arxiv.org
QLAMMP: A Q-Learning Agent for Optimizing Fees on Automated Market Making Protocols

Automated Market Makers (AMMs) have cemented themselves as an integral part of the decentralized finance (DeFi) space. AMMs are a type of exchange that allows users to trade assets without the need for a centralized exchange. They form the foundation for numerous decentralized exchanges (DEXs), whic…

cs.LG q-fin.TR
arxiv.org
Recurrence interval analysis of trading volumes

We study the statistical properties of the recurrence intervals $τ$ between successive trading volumes exceeding a certain threshold $q$. The recurrence interval analysis is carried out for the 20 liquid Chinese stocks covering a period from January 2000 to May 2009, and two Chinese indices from Ja…

q-fin.ST q-fin.TR
arxiv.org
On two quantum approaches to adaptive mutations in bacteria

I compare two quantum-theoretical approaches to the phenomenon of adaptive mutations, termed here Q-cell and Q-genome. I use 'fluctuation trapping' model as a general framework. I introduce notions of R-error and D-error and argue that the 'fluctuation trapping' model has to employ a correlation bet…

q-bio.PE q-bio.CB
arxiv.org
Predicting Expressive Speaking Style From Text In End-To-End Speech Synthesis

Global Style Tokens (GSTs) are a recently-proposed method to learn latent disentangled representations of high-dimensional data. GSTs can be used within Tacotron, a state-of-the-art end-to-end text-to-speech synthesis system, to uncover expressive factors of variation in speaking style. In this work…

cs.CL cs.LG cs.SD eess.AS stat.ML
arxiv.org
Electron Electric Dipole Moment and Hyperfine Interaction Constants for ThO

A recently implemented relativistic four-component configuration interaction approach to study ${\cal{P}}$- and ${\cal{T}}$-odd interaction constants in atoms and molecules is employed to determine the electron electric dipole moment effective electric field in the $Ω=1$ first excited state of the …

physics.atom-ph quant-ph
arxiv.org
Quantum mechanics in general quantum systems (II): Perturbation theory

We propose an improved scheme of perturbation theory based on our exact solution [An Min Wang, quant-ph/0611216] in general quantum systems independent of time. Our elementary start-point is to introduce the perturbing parameter as late as possible. Our main skills are Hamiltonian redivision so as t…

quant-ph math-ph physics.atom-ph
arxiv.org
Revisiting Atomic Collisions Physics with highly charged ions, A tribute to Michel Barat

Michel Barat passed away in November 2018 at the age of 80 after a rich career in atomic and molecular collisions. He had participated actively in formalizing to the electron promotion model, contributed to low energy reactive collisions at the frontier of chemistry. He investigated electron capture…

physics.atom-ph
arxiv.org
The Zero-Quantum-Defect Method and the Fundamental Vibrational Interval of H$_2^+$

The fundamental vibrational interval of H$_{2}^+$ has been determined to be $ΔG _{1/2} = 2191.126\,614(17)$ cm$^{-1}$ by continuous-wave laser spectroscopy of Stark manifolds of Rydberg states of H$_2$ with the H$_{2}^+$ ion core in the ground and first vibrationally excited states. Extrapolation o…

physics.atom-ph physics.chem-ph