目标检测技术已被广泛应用于各领域,然而火灾目标检测技术在小目标、低光照等具有挑战性的场景下通常表现不佳,且缺乏专门的公开数据集对该类技术的相应性能进行评估。该文针对YOLOv5算法细节提取能力弱、密集目标预测效果不佳等问题进行了研究。首先,制备了小目标火焰图像数据集用于模型训练和性能测试。其次,基于YOLOv5s模型引入3项改进:拓展多尺度检测层、嵌入swin transformer模块、优化后处理函数;构建了改进模型YOLOv5s-SSS(swin transformer with soft-NMS for small target)并进行参数优化。最后,对新模型进行了定性和定量评价。实验结果表明,YOLOv5s-SSS模型相对YOLOv5s模型的平均精确率在小目标火焰图像上提高了16.3%,在常规尺寸烟雾图像上提高了5.9%。该文制备的数据集可有效支撑改进火灾检测模型的训练与测试;构建的YOLOv5s-SSS模型性能测试可靠,为火灾图像检测技术提供了一种新的改进方案。
房地产行业作为我国重要的经济支柱,极大地推动了国家经济的发展。“十四五”规划再次强调“房住不炒”,随着“三道红线”政策的出台,二十大报告中再提“租购并举”,房地产高负债、高杠杆的局面即将被打破。与此同时,房地产企业面临的竞争压力和财务风险也越来越大,这时合理的资本结构就显得尤为重要。滨江集团作为我国房地产企业50强,具有一定的行业代表性。本文选取滨江集团为案例研究对象,进行资本结构优化研究。选取其2018~2023年的财务数据,从债务比率、负债结构、股权结构、融资结构这四个角度进行资本结构的整体分析,总结出滨江集团资本结构存在的问题并分析其原因,对其存在的问题提出有针对性的资本结构优化设计。As an important economic pillar of China, the real estate industry has greatly promoted the development of the national economy. The “14th Five-Year Plan” once again emphasizes “housing for living, not for speculation”. With the introduction of the “three red lines” policy, the 20th National Congress report once again mentioned “renting and purchasing at the same time”, and the situation of high debt and high leverage in real estate is about to be broken. At the same time, the competitive pressure and financial risks faced by real estate companies are also increasing. At this time, a reasonable capital structure is particularly important. As one of the top 50 real estate companies in China, Binjiang Group has a certain industry representativeness. This paper selects Binjiang Group as a case study object to conduct a study on capital structure optimization. Selecting its financial data from 2018 to 2023, this paper conducts an overall analysis of the capital structure from four perspectives: debt ratio, debt structure, equity structure, and financing structure. The problems in Binjiang Group’s capital structure are summarized and their causes are analyzed, and a targeted capital structure optimization design is proposed for its existing problems.
股利分配政策的使用和研究对公司的发展与成长不可或缺。企业使用合理的股利分配政策可以增强股东持股信心、对外展示企业良好发展态势、增加用户信任度,从而推进公司股价上涨。本文以洋河股份的各项数据为基础研究洋河股份的实际经营状况及股利分配情况。研究表明,洋河股份应降低部分股利支付率,保证企业可支配资金能够维持公司可持续发展,有效缓解洋河股份内部的资金短缺问题,促进洋河股份的长远发展。The use and research of dividend distribution policy is indispensable to the development and growth of the company. The use of reasonable dividend distribution policy by enterprises can enhance shareholders’ confidence in holding shares, show the good development trend of the enterprise to the outside world, increase user trust, and thus promote the rise of the company’s stock price. This paper studies the actual operating conditions and dividend distribution of Yanghe Shares based on various data of Yanghe Shares. The study shows that Yanghe Shares should reduce some dividend payout ratios to ensure that the company’s disposable funds can maintain the company’s sustainable development, effectively alleviate the problem of capital shortage within Yanghe Shares, and promote the long-term development of Yanghe Shares.
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