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15
2025/11
文苑大讲堂2025年第36讲： 通向一种文学生产理论：皮埃尔·马舍雷的理论尝试
在《文学生产理论》中，皮埃尔·马舍雷把文学视为意识形态生产而非独立美学的自足的实体。马舍雷的理论与阿尔都塞“斯宾诺莎小组”的唯物主义背景有密切的关系，在这一背景之下，马舍雷对文学这一结构性领域的知识建构的核心在于：文学意义只能在与历史、意识形态的差异关系中生成，继而批判结构主义将文本封闭为和谐整体，主张“结构”指向缺场与差异，批评任务是揭示文本如何生产意识形态。在他的“文学生产理论”的框架内，知识不解释对象，而被赋予新维度，文学研究应成为沉默结构的发声实践。由此，马舍雷以反目的论、反观念论的立场，把批评从阐释转向“生产”，为理解文学的社会功能提供了唯物主义基础。
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10
2025/11
国家社科基金项目选题与论证
国家社会科学基金项目选题指导与交流。
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08
2025/11
马克思主义的当代价值
马克思主义的当代价值。
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08
2025/11
Parity-Constrained Knapsack Center Problem
We study the parity-constrained knapsack（PARKN） center problem. In a PARKN center instance, we are given a set of vertices, each associated with a non-negative weight and a parity requirement, which can be odd or even. These vertices are located in a metric space with distances, and a knapsack capacity is also given by a non-negative k. The goal of this problem is to select a subset of vertices whose total weight is less than or equal to the knapsack capacity k to serve as centers and assign each vertex to one of these centers so that the maximum distance from any vertex to its assigned center is minimized. Moreover, for each center, the number of vertices assigned to it must meet its parity requirement.Our main contribution is a 10-approximation algorithm for the PARKN center problem, which is divided into three phases. The first phase employs the concept of the maximal independent set to determine an initial solution that selects a subset of centers under the knapsack capacity and assigns each vertex to a center. Consider that there may exist some centers whose parity requirement isn’t satisfied, we pair up these centers and modify the center set and assignments, respectively, in phase two and three to achieve a feasible solution.
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08
2025/11
公平聚类模型与算法
聚类问题旨在将数据集划分为若干组，使同组内的对象相似、不同组间的对象差异较大。公平聚类是在传统聚类的基础上引入公平性约束，要求各簇在性别、地域、群体等敏感属性上保持均衡，从而避免算法结果对特定群体的不公正偏倚。我们从聚类的中心和用户公平性的角度分别介绍两类公平聚类模型，并介绍相应的近似算法。
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08
2025/11
On the competitive ratio for online uniform facility location problem in the random-order model
We study the online facility location problem, where clients arrive sequentially in a random order and must be assigned to an open facility immediately and irrevocably upon arrival. At the initial stage, the set of facilities is fully known.We present a 8-competitive online algorithm for the uniform facility cost case, providing the first competitive ratio result for this setting. Our algorithm reduces the competitive ratio by 75% compared to the previously known 33-competitive ratio for the nonuniform case. The analysis offers new theoretical insights into online algorithms for the nonuniform case and establishes a foundation for practical applications in decision-making contexts. (Joint work with Mengzhen Li, Runjie Miao, Chenchen Wu)
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10
2025/11
铁与疾病：问题，思考和答案
铁与疾病：问题，思考和答案
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08
2025/11
周末专家足球即时比分_365体育直播￥球探网行：植物抗病机理
植物抗病机理
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07
2025/11
检察制度的基础理论与实践创新
1.检察制度概述2.新时代检察理念与组织结构3.检察机关的性质定位与基本原则4.中国检察制度的特色优势5.检察官制度与队伍建设
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07
2025/11
海湾地区从被渗透到全面平衡战略的转变 （国内访学归来报告）
海湾地区的八个国家（以沙特为首的六个海湾君主国，以及伊朗和伊拉克）将大部分资源或财力用于安全和相互关系中。大国竞争意在海湾地区寻求更大的影响力，主要集中在外交、军事和经济领域。由于外部力量的长期渗透，海湾地区国家将自身理解为一个地区安全综合体，这个安全综合体由于高度关注己方安全，由此产生对异己或外部安全威胁的高度关切。作为渗透之地，海湾国家在外部和国内两个层面考虑对政权稳定的威胁。由此，“全方位平衡”战略被海湾各国采用，以保护自身免受安全威胁。
