A derivatives trading recommendation system: The mid‐curve calendar spread case

Derivative traders are usually required to scan through hundreds, even thousands of possible trades on a daily basis. Up to now, not a single solution is available to aid in their job. Hence, this work is aimed to develop a trading recommendation system, and to apply this system to the so‐called Mid‐Curve Calendar Spread (MCCS) trade. To suggest that such approach is feasible, we used a list of 35 different types of MCCSs; a total of 11 predictive and 4 benchmark models. Our results suggest that linear regression with l1‐regularisation (Lasso) compared favourably to other approaches from a predictive and interpretability point of views.     

Asking ‘Why’ in AI: Explainability of intelligent systems – perspectives and challenges

Recent rapid progress in machine learning (ML), particularly so‐called ‘deep learning’, has led to a resurgence in interest in explainability of artificial intelligence (AI) systems, reviving an area of research dating back to the 1970s. The aim of this article is to view current issues concerning ML‐based AI systems from the perspective of classical AI, showing that the fundamental problems are far from new, and arguing that elements of that earlier work offer routes to making progress towards explainable AI today.     

农户声誉对农村借贷市场中逆向选择的约束研究

农户的声誉是信用社借贷决策中主要的考量因素之一.声誉能够反映农户能力与品格的综合信息,那些能力较强、品格好的农户才会有较高的声誉水平.文章利用信号传递博弈模型,阐明在农户与信用社的非对称信息借贷博弈中,农户声誉如何成为信用社识别可信赖的贷款农户的有效信号,从而克服农村借贷中的逆向选择问题.     

我国4省农民思想教育现状分析及对策研究

加强农民教育,提高农民素质,培养新型农民是建设社会主义新农村的现实需要,是当前农业与农村工作中一项十分紧迫的任务。该文从社会学视角,结合陕西、河南、山东、江西4省样本,对当前农民思想素质教育问题进行较为深入的探讨,在此基础上,提出了今后农民思想教育发展的思路。     

广西木薯产业化发展模式实证研究

该文以广西木薯产业化发展模式中的主导模式"公司+基地+农户"以及"龙头企业+合作社+农户"为例,分析了广西木薯产业化模式中参与主体之间的联结问题。针对两种模式中优点与不足,该文就生产基地、龙头企业、农户和政府等产业化经营参与主体方面的建设提出了一些合理的政策建议。     

短视频的著作权保护及雷同作品的实质性相似认定

短视频行业承载着庞大流量的同时,也充斥着诸多著作权侵权问题,主要体现在平台上存在大量雷同短视频。鉴于我国目前对雷同短视频的实质性相似并没有统一的认定方法和标准,因此实践中认定短视频实质性相似会有很大难度。本文以近期引发国内外广泛关注的"越南李子柒"事件为视角,从"思想/表达二分法"原则切入,结合国外的相关判例,分析作品实质性相似的几种主要认定方法,最后提出适用于雷同短视频实质性相似的认定方法——"内/外部测试法"。     

浅谈任务驱动在模拟电子技术教学中的应用

该文阐述了在模拟电子技术教学过程中采用任务驱动式教学的必要性和优越性,并就该课程在任务驱动模式下的教学设计和教学评价作了较详细的分析和介绍。     

浅议高职保险专业人才培养模式的改革

保险是与人打交道的行业,保险公司对一线员工综合素质要求较高,而我们现有的传统教学模式培养出的学生缺乏实践的锻炼、缺乏职业环境的熏陶,远未能符合保险公司用人的要求。为适应保险市场对一线人才的需求,高职高专保险专业必须进行改革,改变原有的人才培养模式和课程体系,进行工学交替、工学结合模式的改革和基于工作流程的课程体系改革。     

Antecedents and consequences of knowledge sharing in international tourist hotels

The purpose of this empirical study is to investigate factors which influence knowledge sharing, organizational learning and effectiveness. Of self-completed questionnaires collected from international tourist hotels in Taiwan, 615 were usable for data analysis. The structural equation modeling results showed that leaders played the roles of mentor, facilitator and innovator, and nurtured a supportive environment at the levels of workgroup, immediate superior and organization. In addition, employees had a positive attitude towards learning and to sharing. All of these contributions facilitate transformation of collective individual knowledge to organizational knowledge, resulting in the advancement of organizational learning, and thus, greater organizational effectiveness.