Zhanghua Wu

activity

20142026

C P

symmetry in the entangled

Ξ^{0} - Ξ ˉ^{0}

Pairs

45 citations · 183 across the 41 of their papers we have counts for

collaborators

42 papers

cs.CL2026

DeepSeek-V4: Towards Highly Efficient Million-Token Context Intelligence

DeepSeek-AI, Anyi Xu, Bangcai Lin +315

We present a preview version of DeepSeek-V4 series, including two strong Mixture-of-Experts (MoE) language models -- DeepSeek-V4-Pro with 1.6T parameters (49B activated) and DeepSe…

cs.CL2023

Make BERT-based Chinese Spelling Check Model Enhanced by Layerwise Attention and Gaussian Mixture Model

Yongchang Cao, Liang He, Zhen Wu +1

BERT-based models have shown a remarkable ability in the Chinese Spelling Check (CSC) task recently. However, traditional BERT-based methods still suffer from two limitations. Firs…

hep-ex2023

Observation and branching fraction measurement of the decay $J / ψ \to p ˉ Σ^{+} K_{S}^{0} + c . c .$

M. Ablikim, M. N. Achasov, P. Adlarson +612

The first observation of the decays $J / ψ \to p ˉ Σ^{+} K_{S}^{0}$ and $J / ψ \to p Σ ˉ^{-} K_{S}^{0}$ is reported using $(10087 \pm 44) \times 1 0^{6}$ $J\!/\!…

stat.CO2023

ddtlcm: An R package for overcoming weak separation in Bayesian latent class analysis via tree-regularization

Mengbing Li, Bolin Wu, Briana Stephenson +1

Traditional applications of latent class models (LCMs) often focus on scenarios where a set of unobserved classes are well-defined and easily distinguishable. However, in numerous…

hep-ex2023

Studies of the decay $D_{s}^{+} \to K^{+} K^{-} μ^{+} ν_{μ}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +608

The $D_{s}^{+} \to K^{+} K^{-} μ^{+} ν_{μ}$ decay is studied based on 7.33 fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected with the BESIII detector at center-of-mass energies in the range from 4.12…

hep-ex2023★ 43 cited

Measurement of the Energy-Dependent Electromagnetic Form Factors of a Charmed Baryon

BESIII Collaboration, M. Ablikim, M. N. Achasov +609

We study the process $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ at twelve center-of-mass energies from $4.6119$ to $4.9509 GeV$ using data samples collected by the BESIII detecto…

hep-ex2023

Measurement of $e^{+} e^{-} \to p K^{-} Λ ˉ + c . c .$ cross sections between 4.009 GeV and 4.951 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +609

Using $e^{+} e^{-}$ collision datasets corresponding to total integrated luminosity of 21.7 fb $^{- 1}$ collected with the BESIII detector at the BEPCII collider at center-of-mass energie…

hep-ex2023★ 4 cited

First Observation of a Three-Resonance Structure in $e^{+} e^{-} \to$ Nonopen Charm Hadrons

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

We report the measurement of the inclusive cross sections for $e^{+} e^{-}$ $\to$ nOCH (where nOCH denotes non-open charm hadrons) with improved precision at center-of-mass (c.m.)…

stat.ME2023★ 2 cited

Incorporating Auxiliary Variables to Improve the Efficiency of Time-Varying Treatment Effect Estimation

Jieru Shi, Zhenke Wu, Walter Dempsey

Contextual sensing and delivery of digital interventions to improve health outcomes have gained significant traction in behavioral and psychiatric studies. Micro-randomized trials…

hep-ex2023★ 5 cited

Precise measurement of the branching fractions of $J / ψ \to Λ ˉ π^{+} Σ^{-} + c . c .$ and $J / ψ \to Λ ˉ π^{-} Σ^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +610

Based on a data sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, the branching fraction of $J / ψ \to Λ ˉ π^{+} Σ^{-} + c . c .$ is measured to be…

stat.ME2023★ 1 cited

Tree-Regularized Bayesian Latent Class Analysis for Improving Weakly Separated Dietary Pattern Subtyping in Small-Sized Subpopulations

Mengbing Li, Briana Stephenson, Zhenke Wu

Dietary patterns synthesize multiple related diet components, which can be used by nutrition researchers to examine diet-disease relationships. Latent class models (LCMs) have been…

hep-ex2023★ 27 cited

First study of reaction $Ξ^{0} n \to Ξ^{-} p$ using $Ξ^{0}$ -nucleus scattering at an electron-positron collider

BESIII Collaboration, M. Ablikim, M. N. Achasov +604

Using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with the BESIII detector at the BEPCII storage ring, the process $Ξ^{0} n \to Ξ^{-} p$ is studied, where the $Ξ^{0}$ …

math.OC2023

A maximum principle for progressive optimal control of mean-filed forward-backward stochastic system involving random jumps and impulse controls

Tian Chen, Kai Du, Zongyuan Huang +1

In this paper, we study an optimal control problem of a mean-field forward-backward stochastic system with random jumps in progressive structure, where both regular and singular co…

cs.CL2023★ 2 cited

Measuring Your ASTE Models in The Wild: A Diversified Multi-domain Dataset For Aspect Sentiment Triplet Extraction

Ting Xu, Huiyun Yang, Zhen Wu +3

Aspect Sentiment Triplet Extraction (ASTE) is widely used in various applications. However, existing ASTE datasets are limited in their ability to represent real-world scenarios, h…

hep-ex2023

Determination of spin and parity of $D_{(s)}^{*}$ mesons

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

The spin and parity of the charmed mesons $D_{s}^{*+}$ , $D^{* 0}$ and $D^{*+}$ are determined for the first time to be $J^{P} = 1^{-}$ with significances greater than 10 $σ$ over other h…

hep-ex2023★ 3 cited

Search for baryon and lepton number violating decays of $Ξ^{0}$ hyperons

BESIII Collaboration, M. Ablikim, M. N. Achasov +602

Using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected by the BESIII detector at the BEPCII collider, we report the first search for the baryon and lepton number violating d…

hep-ex2023★ 4 cited

Determination of the $C P$ -even fraction of $D^{0} \to K_{S}^{0} π^{+} π^{-} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +608

Quantum-correlated $D D ˉ$ pairs collected by the BESIII experiment at the $ψ (3770)$ resonance, corresponding to an integrated luminosity of 2.93 fb $^{- 1}$ , are used to study th…

hep-ex2023

Production of doubly-charged $Δ$ baryon in $e^{+} e^{-}$ annihilation at energies from 2.3094 to 2.6464 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +591

The processes $e^{+} e^{-} \to Δ^{++} Δ ˉ^{--}$ and $e^{+} e^{-} \to Δ^{++} p ˉ π^{-} + c . c .$ are studied for the first time with $179 pb^{- 1}$ of $e^{+} e^{-}$ annihilation…

hep-ex2023★ 45 cited

Tests of $C P$ symmetry in the entangled $Ξ^{0} - Ξ ˉ^{0}$ Pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +609

The $J / ψ \to Ξ^{0} Ξ ˉ^{0}$ process and subsequent decays are investigated using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected at the BESIII experiment. The decay parameters of…

cs.CL2023★ 1 cited

An Empirical Study and Improvement for Speech Emotion Recognition

Zhen Wu, Yizhe Lu, Xinyu Dai

Multimodal speech emotion recognition aims to detect speakers' emotions from audio and text. Prior works mainly focus on exploiting advanced networks to model and fuse different mo…

math.OC2023

Linear-Quadratic Delayed Mean-Field Social Optimization

Tianyang Nie, Shujun Wang, Zhen Wu

A linear quadratic (LQ) stochastic optimization problem with delay involving weakly-coupled large population is investigated in this paper. Different to classic mean field (MF) gam…

stat.ML2023★ 2 cited

A Reinforcement Learning Framework for Dynamic Mediation Analysis

Lin Ge, Jitao Wang, Chengchun Shi +2

Mediation analysis learns the causal effect transmitted via mediator variables between treatments and outcomes and receives increasing attention in various scientific domains to el…

stat.ME2022

Estimating Time-Varying Direct and Indirect Causal Excursion Effects with Longitudinal Binary Outcomes

Jieru Shi, Zhenke Wu, Walter Dempsey

Construction of just-in-time adaptive interventions, such as prompts delivered by mobile apps to promote and maintain behavioral change, requires knowledge about time-varying moder…

stat.ML2022★ 1 cited

Doubly Inhomogeneous Reinforcement Learning

Liyuan Hu, Mengbing Li, Chengchun Shi +2

This paper studies reinforcement learning (RL) in doubly inhomogeneous environments under temporal non-stationarity and subject heterogeneity. In a number of applications, it is co…

DeepSeek-V4: Towards Highly Efficient Million-Token Context Intelligence

Make BERT-based Chinese Spelling Check Model Enhanced by Layerwise Attention and Gaussian Mixture Model

Observation and branching fraction measurement of the decay J/ψ→pˉ​Σ+KS0​+c.c.

ddtlcm: An R package for overcoming weak separation in Bayesian latent class analysis via tree-regularization

Studies of the decay Ds+​→K+K−μ+νμ​

Measurement of the Energy-Dependent Electromagnetic Form Factors of a Charmed Baryon

Measurement of e+e−→pK−Λˉ+c.c. cross sections between 4.009 GeV and 4.951 GeV

First Observation of a Three-Resonance Structure in e+e−→Nonopen Charm Hadrons

Incorporating Auxiliary Variables to Improve the Efficiency of Time-Varying Treatment Effect Estimation

Precise measurement of the branching fractions of J/ψ→Λˉπ+Σ−+c.c. and J/ψ→Λˉπ−Σ++c.c.

Tree-Regularized Bayesian Latent Class Analysis for Improving Weakly Separated Dietary Pattern Subtyping in Small-Sized Subpopulations

First study of reaction Ξ0n→Ξ−p using Ξ0-nucleus scattering at an electron-positron collider

A maximum principle for progressive optimal control of mean-filed forward-backward stochastic system involving random jumps and impulse controls

Measuring Your ASTE Models in The Wild: A Diversified Multi-domain Dataset For Aspect Sentiment Triplet Extraction

Determination of spin and parity of D(s)∗​ mesons

Search for baryon and lepton number violating decays of Ξ0 hyperons

Determination of the CP-even fraction of D0→KS0​π+π−π0

Production of doubly-charged Δ baryon in e+e− annihilation at energies from 2.3094 to 2.6464 GeV

Tests of CP symmetry in the entangled Ξ0−Ξˉ0 Pairs

An Empirical Study and Improvement for Speech Emotion Recognition

Linear-Quadratic Delayed Mean-Field Social Optimization

A Reinforcement Learning Framework for Dynamic Mediation Analysis

Estimating Time-Varying Direct and Indirect Causal Excursion Effects with Longitudinal Binary Outcomes

Doubly Inhomogeneous Reinforcement Learning

Observation and branching fraction measurement of the decay $J / ψ \to p ˉ Σ^{+} K_{S}^{0} + c . c .$

Studies of the decay $D_{s}^{+} \to K^{+} K^{-} μ^{+} ν_{μ}$

Measurement of $e^{+} e^{-} \to p K^{-} Λ ˉ + c . c .$ cross sections between 4.009 GeV and 4.951 GeV

First Observation of a Three-Resonance Structure in $e^{+} e^{-} \to$ Nonopen Charm Hadrons

Precise measurement of the branching fractions of $J / ψ \to Λ ˉ π^{+} Σ^{-} + c . c .$ and $J / ψ \to Λ ˉ π^{-} Σ^{+} + c . c .$

First study of reaction $Ξ^{0} n \to Ξ^{-} p$ using $Ξ^{0}$ -nucleus scattering at an electron-positron collider

Determination of spin and parity of $D_{(s)}^{*}$ mesons

Search for baryon and lepton number violating decays of $Ξ^{0}$ hyperons

Determination of the $C P$ -even fraction of $D^{0} \to K_{S}^{0} π^{+} π^{-} π^{0}$

Production of doubly-charged $Δ$ baryon in $e^{+} e^{-}$ annihilation at energies from 2.3094 to 2.6464 GeV

Tests of $C P$ symmetry in the entangled $Ξ^{0} - Ξ ˉ^{0}$ Pairs