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从句子图到篇章图——基于抽象语义表示的篇章级共指标注体系研究

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外语学刊 2025年第1期 19-28页

作者：张艺璇李斌许智星南京师范大学文学院南京210097 南京师范大学语言大数据与计算人文研究中心南京210097

篇章级共指关系是语言学和计算语言学的研究难点之一。本文在梳理共指理论研究与趋势的基础上,回顾共指语料库的构建与自动解析方法,指出共指语料的构建主要存在以下两个问题:共指关系的标注较为粗疏,也基本不考虑与句子语义结构本身的... 详细信息

篇章级共指关系是语言学和计算语言学的研究难点之一。本文在梳理共指理论研究与趋势的基础上,回顾共指语料库的构建与自动解析方法,指出共指语料的构建主要存在以下两个问题:共指关系的标注较为粗疏,也基本不考虑与句子语义结构本身的关系。本文在句子级语义标注体系(中文抽象语义表示)的基础上,设计篇章共指的标注体系,以“概念同一性”为基本原则,从词形的异同和概念的表述角度区分9种篇章共指关系,标注了500个篇章的共指信息。与已完整标注的52种句内语义关系相结合,构建出带有篇章共指信息的篇章抽象语义图库。该语料库选自CTB新闻语料,体裁涵盖经济、体育及生活类,规模为6237句,16万词例。该语料库的构建为篇章级语义分析提供了新框架与数据资源。

关键词：篇章共指抽象语义表示概念同一性篇章语义结构语料库中文信息处理

Neighbor Library-Aware Graph Neural Network for Third Party Library Recommendation

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Tsinghua Science and Technology 2023年第4期28卷 769-785页

作者： ying Jin yi zhang yiwen zhang School of Artificial Intelligence and Big Data Hefei UniversityHefei 230601China School of Computer Science and Technology Anhui UniversityHefei 230601China

Modern software development has moved toward agile growth and rapid delivery,where developers must meet the changing needs of users *** such a situation,plug-and-play Third-Party Libraries(TPLs)introduce a considerable amount of convenience to ***,selecting the exact candidate that meets the project requirements from the countless TPLs is challenging for *** works have considered setting up a personalized recommender system to suggest TPLs for ***,these approaches rarely consider the complex relationships between applications and TPLs,and are unsatisfactory in accuracy,training speed,and convergence *** this paper,we propose a new end-to-end recommendation model called Neighbor Library-Aware Graph Neural Network(NLA-GNN).Unlike previous works,we only initialize one type of node embedding,and construct and update all types of node representations using Graph Neural Networks(GNN).We use a simplified graph convolution operation to alternate the information propagation process to increase the training efficiency and eliminate the heterogeneity of the app-library bipartite graph,thus efficiently modeling the complex high-order relationships between the app and the *** experiments on large-scale real-world datasets demonstrate that NLA-GNN achieves consistent and remarkable improvements over state-of-the-art baselines for TPL recommendation tasks.

关键词： Third-Party Library(TPL) TPL recommendation Graph Neural Network(GNN) bipartite graph

Wave function collapses and 1/n energy spectrum induced by a Coulomb potential in a one-dimensional flat band system

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Chinese Physics B 2022年第5期31卷 173-179页

作者： yi-Cai zhang School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China

We investigate the bound state problem in a one-dimensional flat band system with a Coulomb *** is found that,in the presence of a Coulomb potential of type I(with three equal diagonal elements),similarly to that in the twodimensional case,the flat band could not *** the same time,the flat band states are transformed into localized states with a logarithmic singularity near the center *** addition,the wave function near the origin would collapse for an arbitrarily weak Coulomb *** to the wave function collapses,the eigen-energies for a shifted Coulomb potential depend sensitively on the cut-off *** a Coulomb potential of type II,there exist infinite bound states that are generated from the flat ***,when the bound state energy is very near the flat band,the energy is inversely proportional to the natural number,e.g.,E_(n)∝1/n,n=1,2,3,...It is expected that the 1/n energy spectrum could be observed experimentally in the near future.

关键词： wave function collapses flat band infinite bound states

A Review on Deterministic Lateral Displacement for Particle Separation and Detection

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Nano-Micro Letters 2019年第4期11卷 353-385页

作者： Thoriq Salafi yi zhang Yong zhang NUS Graduate School for Integrative Sciences and Engineering National University of SingaporeSingapore 119077Singapore Department of Biomedical Engineering National University of SingaporeSingapore 117583Singapore

The separation and detection of particles in suspension are essential for a wide spectrum of applications including medical *** this field,microfluidic deterministic lateral displacement(DLD)holds a promise due to the ability of continuous separation of particles by size,shape,deformability,and electrical properties with high *** is a passive microfluidic separation technique that has been widely implemented for various bioparticle separations from blood cells to *** techniques have been previously reviewed in *** then,the field has matured as several physics of DLD have been updated,new phenomena have been discovered,and various designs have been presented to achieve a higher separation performance and ***,some recent progress has shown new clinical applications and ability to use the DLD arrays as a platform for biomolecules *** review provides a thorough discussion on the recent progress in DLD with the topics based on the fundamental studies on DLD models and applications for particle separation and ***,current challenges and potential solutions of DLD are also *** believe that a comprehensive understanding on DLD techniques could significantly contribute toward the advancements in the field for various *** particular,the rapid,low-cost,and high-throughput particle separation and detection with DLD have a tremendous impact for point-of-care diagnostics.

关键词： Microfluidic Deterministic lateral displacement Particle separation Particle detection

Integrating Factors and Conservation Laws of Generalized Birkhoff System Dynamics in Event Space

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Communications in Theoretical Physics 2009年第6期51卷 1078-1082页

作者： zhang yi College of Civil Engineering Suzhou University of Science and Technology Suzhou 215011 China

In this paper, the conservation laws of generalized Birkhoff system in event space are studied by using the method of integrating factors. Firstly, the generalized Pfaff-Birkhoff principle and the generalized Birkhoff equations are established, and the definition of the integrating factors for the system is given. Secondly, based on the concept of integrating factors, the conservation theorems and their inverse for the generalized Birkhoff system in the event space are presented in detail, and the relation between the conservation laws and the integrating factors of the system is obtained and the generalized Killing equations for the determination of the integrating factors are given. Finally, an example is given to illustrate the application of the results.

关键词： generalized Birkhoff system dynamics conservation law event space integrating tactor

Integrating Factors and Conservation Laws for Relativistic Mechanical System

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Communications in Theoretical Physics 2005年第2X期44卷 231-234页

作者： zhang yi Department of Civil Engineering University of Science and Technology of Suzhou Suzhou 215011 China

In this paper, we present a new method to construct the conservation laws for relativistic mechanical systems by finding corresponding integrating factors. First, the Lagrange equations of relativistic mechanical systems are established, and the definition of integrating factors of the systems is given; second, the necessary conditions for the existence of conserved quantities of the relativistic mechanical systems are studied in detail, and the relation between the conservation laws and the integrating factors of the systems is obtained and the generalized Killing equations for the determination of the integrating factors are given; finally, the conservation theorem and its inverse for the systems are established, and an example is given to illustrate the application of the results.

关键词： relativity mechanical system conservation law integrating factor Killing equation

A General Approach to the Construction of Conservation Laws for Birkhoffian Systems in Event Space

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Communications in Theoretical Physics 2008年第10期50卷 851-854页

作者： zhang yi College of Civil Engineering Suzhou University of Science and Technology Suzhou 215011 China

For a Birkhoffing system in the event space, a general approach to the construction of conservation laws is presented. The conservation laws are constructed by finding corresponding integrating factors for the parametric equations of the system. First, the parametric equations of the Birkhoffian system in the event space are established, and the definition of integrating factors for the system is given; second the necessary conditions for the existence of conservation laws are studied in detail, and the relation between the conservation laws and the integrating factors of the system is obtained and the generalized Killing equations for the determination of the integrating factors are given; finally, the conservation theorem and its inverse for the system are established, and an example is given to illustrate the application of the results.

关键词： event space Birkhoffian system integrating factor conservation theorem Killing equation

Generalized Lutzky Conserved Quantities of Holonomic Systems with Remainder Coordinates Subjected to Unilateral Constraints

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Communications in Theoretical Physics 2006年第4期45卷 732-736页

作者： zhang yi Department of Civil Engineering University of Science and Technology of Suzhou Suzhou 215011 China

This paper focuses on studying the relation between a velocity-dependent symmetry and a generalized Lutzky conserved quantity for a holonomic system with remainder coordinates subjected to unilateral constraints. The differential equations of motion of the system are established, and the definition of Lie symmetry for the system is given. The conditions under which a Lie symmetry can directly lead up to a generalized Lutzky conserved quantity and the form of the new conserved quantity are obtained, and an example is given to illustrate the application of the results.

关键词： analytical mechanics remainder coordinate unilateral constraint holonomic system symmetry conserved quantity

Hojman Conserved Quantities for Birkhoffian Systems in Event Space

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Communications in Theoretical Physics 2008年第7期50卷 59-62页

作者： zhang yi College of Civil Engineering Suzhou University of Science and Technology Suzhou 215011 China

This paper focuses on studying a Hojman conserved quantity directly derived from a Lie symmetry fora Birkhoffian system in the event *** Birkhoffian parametric equations for the system are established,and thedetermining equations of Lie symmetry for the system are *** conditions under which a Lie symmetry ofBirkhoffian system in the event space can directly lead up to a Hojman conserved quantity and the form of the Hojmanconserved quantity are *** example is given to illustrate the application of the results.

关键词： event space Birkhoffian system Lie symmetry Hojman conserved quantity