Xingwu Chen
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View article: Towards Theoretical Understanding of Transformer Test-Time Computing: Investigation on In-Context Linear Regression
Towards Theoretical Understanding of Transformer Test-Time Computing: Investigation on In-Context Linear Regression Open
Using more test-time computation during language model inference, such as generating more intermediate thoughts or sampling multiple candidate answers, has proven effective in significantly improving model performance. This paper takes an …
View article: Normal forms of piecewise-smooth systems with a monodromic singular point
Normal forms of piecewise-smooth systems with a monodromic singular point Open
Normal form theory is developed deeply for planar smooth systems but has few results for piecewise-smooth systems because difficulties arise from continuity of the near-identity transformation, which is constructed piecewise. In this paper…
View article: Reshaping Reasoning in LLMs: A Theoretical Analysis of RL Training Dynamics through Pattern Selection
Reshaping Reasoning in LLMs: A Theoretical Analysis of RL Training Dynamics through Pattern Selection Open
While reinforcement learning (RL) demonstrated remarkable success in enhancing the reasoning capabilities of language models, the training dynamics of RL in LLMs remain unclear. In this work, we provide an explanation of the RL training pr…
View article: Grazing-sliding bifurcations in planar $\mathbb{Z}_2$-symmetric Filippov systems
Grazing-sliding bifurcations in planar $\mathbb{Z}_2$-symmetric Filippov systems Open
This paper aims to explore the effect of $\mathbb{Z}_2$-symmetry on grazing-sliding bifurcations in planar Filippov systems. We consider the scenario where the unperturbed system is $\mathbb{Z}_2$-symmetric and its subsystem exhibits a hyp…
View article: Normal forms of piecewise-smooth monodromic systems
Normal forms of piecewise-smooth monodromic systems Open
Normal form is an important tool in the study of bifurcations but, unlike those for smooth differential systems, normal forms for piecewise-smooth systems have difficulty with the near-identity transformation, which is constructed piecewis…
View article: Epidemiology and Antimicrobial Resistance of Stenotrophomonas maltophilia in China, 2014–2021
Epidemiology and Antimicrobial Resistance of Stenotrophomonas maltophilia in China, 2014–2021 Open
This study highlights the stable prevalence of S. maltophilia in clinical settings in China and the overall low resistance rates to recommended first-line antibiotics. However, alarmingly high resistance rates were observed in specific spe…
View article: A quintic Z2-equivariant Liénard system arising from the complex Ginzburg-Landau equation: (II)
A quintic Z2-equivariant Liénard system arising from the complex Ginzburg-Landau equation: (II) Open
We continue to study a quintic Z2-equivariant Liénard system $\dot x=y,\dot y=-(a_0x+a_1x^3+a_2x^5)-(b_0+b_1x^2)y$ with $a_2b_1\ne 0$, arising from the complex Ginzburg-Landau equation. Global dynamics of the system have been studied in [{…
View article: How Transformers Utilize Multi-Head Attention in In-Context Learning? A Case Study on Sparse Linear Regression
How Transformers Utilize Multi-Head Attention in In-Context Learning? A Case Study on Sparse Linear Regression Open
Despite the remarkable success of transformer-based models in various real-world tasks, their underlying mechanisms remain poorly understood. Recent studies have suggested that transformers can implement gradient descent as an in-context l…
View article: Benmelstobart, anlotinib and chemotherapy in extensive-stage small-cell lung cancer: a randomized phase 3 trial
Benmelstobart, anlotinib and chemotherapy in extensive-stage small-cell lung cancer: a randomized phase 3 trial Open
Immunochemotherapy is the first-line standard for extensive-stage small-cell lung cancer (ES-SCLC). Combining the regimen with anti-angiogenesis may improve efficacy. ETER701 was a multicenter, double-blind, randomized, placebo-controlled …
View article: P‐96: Alignment Optimization on Gen. 4.5 G for High‐framerate Ultra‐high‐resolution Ferroelectric Liquid Crystal Displays
P‐96: Alignment Optimization on Gen. 4.5 G for High‐framerate Ultra‐high‐resolution Ferroelectric Liquid Crystal Displays Open
We achieve high‐framerate (< 100 μs) high‐contrast‐ratio ferroelectric liquid crystal displays (FLCD) on Gen 4.5. Innovatively, a new polyimide (PI) that is suitable for ferroelectric liquid crystal (FLC) alignment is synthesized and teste…
View article: Bifurcations and explicit unfoldings of grazing loops connecting one high multiplicity tangent point
Bifurcations and explicit unfoldings of grazing loops connecting one high multiplicity tangent point Open
For piecewise-smooth differential systems, in this paper we focus on crossing limit cycles and sliding loops bifurcating from a grazing loop connecting one high multiplicity tangent point. For the low multiplicity cases considered in previ…
View article: Classifications and bifurcations of tangent points and their loops of planar piecewise-smooth systems
Classifications and bifurcations of tangent points and their loops of planar piecewise-smooth systems Open
Tangent points, especial dynamics existing only in piecewise-smooth systems, usually have dynamical properties like equilibria of smooth systems. Loops connecting tangent points own partly properties of limit cycles and homoclinic loops of…
View article: GuLu XuanYuan , a biomimetic Transformer that intergrates humanoid MIP, reptile UGV, and bird UAV
GuLu XuanYuan , a biomimetic Transformer that intergrates humanoid MIP, reptile UGV, and bird UAV Open
This article proposes a multi habitat bio-mimetic robot, named as GuLu XuanYuan.It combines all common types of mobile robots, namely humanoid MIP, unmanned ground vehicle, and unmanned aerial vehicle. These 3 modals imitate human, bird, a…
View article: What Can Transformer Learn with Varying Depth? Case Studies on Sequence Learning Tasks
What Can Transformer Learn with Varying Depth? Case Studies on Sequence Learning Tasks Open
We study the capabilities of the transformer architecture with varying depth. Specifically, we designed a novel set of sequence learning tasks to systematically evaluate and comprehend how the depth of transformer affects its ability to pe…
View article: E3 ligase TRIM28 promotes anti-PD-1 resistance in non-small cell lung cancer by enhancing the recruitment of myeloid-derived suppressor cells
E3 ligase TRIM28 promotes anti-PD-1 resistance in non-small cell lung cancer by enhancing the recruitment of myeloid-derived suppressor cells Open
Background Alterations in several tripartite motif-containing (TRIM) family proteins have been implicated in the pathogenesis of lung cancer. TRIM28, a member of the TRIM E3 ligase family, has been associated with tumorigenesis, cell proli…
View article: Orbits and tsectors in irregular exceptional directions of full-null degenerate singular point
Orbits and tsectors in irregular exceptional directions of full-null degenerate singular point Open
Near full-null degenerate singular points of analytic vector fields, asymptotic behaviors of orbits are not given by eigenvectors but totally decided by nonlinearities. Especially, in the case of high full-null degeneracy, i.e., the lowest…
View article: Research on an Underwater Object Detection Network Based on Dual-Branch Feature Extraction
Research on an Underwater Object Detection Network Based on Dual-Branch Feature Extraction Open
Underwater object detection is challenging in computer vision research due to the complex underwater environment, poor image quality, and varying target scales, making it difficult for existing object detection networks to achieve high acc…
View article: Dynamical behavior of traveling waves in a generalized VP-mVP equation with non-homogeneous power law nonlinearity
Dynamical behavior of traveling waves in a generalized VP-mVP equation with non-homogeneous power law nonlinearity Open
In this paper, we investigate the dynamical behavior of traveling waves for a generalized Vakhnenko-Parkes-modified Vakhnenko-Parkes (VP-mVP) equation with non-homogeneous power law nonlinearity. By the dynamical systems approach and the s…
View article: Parameter Optimization of PID Controller Based on Improved Beetle Herd Algorithm
Parameter Optimization of PID Controller Based on Improved Beetle Herd Algorithm Open
The PID controller, although used in 95% of the loop operations in the automation field for practical control, still has a lot of shortcomings such as nonlinearity, hysteresis, and time-varying uncertainty, resulting in unsatisfactory cont…
View article: Development, verification and application of the uncertainty analysis platform CUSA
Development, verification and application of the uncertainty analysis platform CUSA Open
Modeling and simulation technology has gradually become an important approach to describe objective physical phenomena and carry out further research and design. However, uncertainty in the basic input of the modeling and simulation proces…
View article: E3 ligase TRIM15 facilitates non-small cell lung cancer progression through mediating Keap1-Nrf2 signaling pathway
E3 ligase TRIM15 facilitates non-small cell lung cancer progression through mediating Keap1-Nrf2 signaling pathway Open
Background Recent studies have indicated that some members of the tripartite motif (TRIM) proteins function as important regulators for non-small cell lung cancer (NSCLC), However, the regulatory mechanism underpinning aberrant expression …
View article: Bifurcation and control of a predator-prey system with unfixed functional responses
Bifurcation and control of a predator-prey system with unfixed functional responses Open
In this paper we investigate a discrete-time predator-prey system with not only some constant parameters but also unfixed functional responses including growth rate function of prey, conversion factor function and predation probability fun…
View article: Integrative Bioinformatic and Functional Analyses of Potential Genes in Female Patients with Non-Small-Cell Lung Cancer
Integrative Bioinformatic and Functional Analyses of Potential Genes in Female Patients with Non-Small-Cell Lung Cancer Open
Objective: To explore the pathogenesis and prognostic biomarkers of non-small-cell lung cancer (NSCLC) in female patients via a bioinformatic analysis and functional prediction of potential NSCLC-associated genes in females. Methods: Data …
View article: Ectodermal‑neural cortex 1 affects the biological function of lung cancer through the MAPK pathway
Ectodermal‑neural cortex 1 affects the biological function of lung cancer through the MAPK pathway Open
Ectodermal‑neural cortex 1 (ENC1), a highly expressed protein in lung cancer tissues, was identified from the Cancer Genome Atlas (TCGA) database. The objective of the present study was to examine the effects of ENC1 on the biological func…
View article: TRAVELING WAVES AND THEIR EVOLUTION FOR THE ZK(N, 2N, -N) EQUATION
TRAVELING WAVES AND THEIR EVOLUTION FOR THE ZK(N, 2N, -N) EQUATION Open
In this paper, using the approach of dynamical systems we investigate the traveling waves for the ZK(n, 2n, -n) equation including the types and evolution of traveling waves. The traveling wave problem is converted into the analysis of ph…
View article: The Optical Design Principle of Twisted-Vertically Aligned Mode LCD
The Optical Design Principle of Twisted-Vertically Aligned Mode LCD Open
Compared with normal VA mode LCD, twisted-vertically aligned (TVA) mode LCD gained more and more attention due to its high transmittance as well as high contrast ratio (CR). To realize the optimized electro-optical performance and low cost…
View article: <p>Expression and Bioinformatics-Based Functional Analysis of UAP1 in Lung Adenocarcinoma</p>
Expression and Bioinformatics-Based Functional Analysis of UAP1 in Lung Adenocarcinoma Open
UAP1 could be a novel diagnostic biomarker and a promising therapeutic target for LAD.