Forecasting CPI inflation components with Hierarchical Recurrent Neural Networks

We present a hierarchical architecture based on recurrent neural networks for predicting disaggregated inflation components of the Consumer Price Index (CPI). While the majority of existing research is focused on predicting headline inflation, many economic and financial institutions are interested in its partial disaggregated components. To this end, we developed the novel Hierarchical Recurrent Neural Network (HRNN) model, which utilizes information from higher levels in the CPI hierarchy to improve predictions at the more volatile lower levels. Based on a large dataset from the US CPI-U index, our evaluations indicate that the HRNN model significantly outperforms a vast array of well-known inflation prediction baselines. Our methodology and results provide additional forecasting measures and possibilities to policy and market makers on sectoral and component-specific price changes.     

人工智能潜在替代风险与员工职业能力发展:基于员工不安全感视角

随着智能科技的蓬勃发展,"人工智能+"在有助于生产和生活的同时,也为员工的职业发展带来了挑战。本文采用机器学习算法计算我国各类职业潜在替代风险,在此基础上深入探讨了潜在替代风险对员工不安全感与职业能力发展的影响。基于13158条职业数据和808份调查问卷的分析,研究发现:我国职业面临着较强的人工智能潜在替代问题的威胁,潜在替代风险高中低的比例分别是52.80%、25.72%和21.48%;潜在替代风险最低的职业大类是企业、事业单位负责人,最高的是生产、运输设备操作人员及有关人员。进一步地,人工智能潜在替代风险在质量性不安全感与职业能力发展间起负向调节作用,当潜在替代风险高时,质量性不安全感对职业能力发展的正向影响作用更小,当潜在替代风险低时,质量性不安全感对职业能力发展的正向影响作用更大。人工智能潜在替代风险对数量性不安全感与职业能力发展的U型关系起正向调节作用,当潜在替代风险高时,数量性不安全感对职业能力发展的U型效应更强,当人工智能潜在替代风险低时,员工数量性不安全感对职业能力发展的U型效应更低。本研究丰富了人工智能领域与职业能力发展的实证研究,为新时代人才培养和技能转型提供建议。     

系统性风险与企业财务危机预警——基于前沿机器学习的新视角

本文采用Logit回归模型以及随机森林模型、梯度提升模型等前沿机器学习方法,深入考察系统性风险指标对我国企业财务危机的预测能力。结果表明,系统性风险对中下游企业的财务危机具有显著的预测能力,而基于因子分析构建的系统性风险指标,结合随机森林模型可取得更好的预测效果。本文进一步区分财务危机的不同成因并发现,基于随机森林模型和Logit回归模型的预测框架能够对我国大多数财务危机事件进行有效预警。在此基础上,本文对我国上市企业监管提出相关建议,从而为完善金融风险处置机制提供一定参考。     

基于机器学习的专利质量评价研究

随着专利数量的迅猛增长，专利质量问题日益凸显，专利质量评价成为学者关注焦点。面对海量专利数据，如何构建有效的专利质量评价方法，实现对专利质量的准确评价和分类是一项急迫的工作。首先，通过对国内外相关专利质量评价研究进行系统调研和梳理，提出一种新的专利质量评价指标体系；其次，根据新的专利质量评价指标体系，构建一种基于机器学习的专利质量评价方法；最后，以人工智能技术专利为例进行实证研究。结果表明，有效综合利用专利技术性、经济性、法定性和主体性评价指标，有助于更加全面、深入地评价专利质量；基于机器学习的专利质量评价方法能够迅速对专利进行分类并识别高质量专利，从而提高专利质量评价结果深度，为实现大规模专利质量分类评价智能化提供可能。     

明星发明人识别与角色分析:来自机器学习领域的实证

明星发明人有助于提高企业研发创新绩效。目前对明星发明人的地位与功能探讨不足，导致企业无法全面掌握发明人信息，难以为研发活动招聘合适的人才。鉴于此，对机器学习领域明星发明人的领导、传播、知识或任务排他等功能和地位进行识别，采用动态网络分析方法确立六类明星发明人，即焦点型发明人、领导型发明人、潜在跨界型发明人、传播型发明人、任务排他型发明人和知识排他型发明人，分析其角色功能。结果表明：部分发明人同时拥有多种地位；领导型、焦点型和知识排他型明星发明人影响范围更广、职业流动性更强，与其他发明人的交互时间更长；隔离同时具有3种地位的明星发明人对焦点型发明人影响显著。     

我国科技企业融资的决定因素研究——基于科创板企业的机器学习分析

本文以手工收集的2019年7月至2020年12月所有申报科创板上市的企业为研究对象,研究了企业层面五大维度数十个因素对我国科技企业融资的预测效果,通过传统的OLS和机器学习降维排序方法,为科创板增量改革的实践效果提供了直接证据。研究发现:企业能否在科创板上市方面,企业研发水平、成长性和公司治理水平这三类反映企业未来发展潜力的特征占据主导作用,且研发水平最为关键,盈利的重要性最低;在众多研发变量中,企业研发人员人数占总人数比最为重要;企业能否在科创板上市和上市后二级市场表现的变量重要性排序各不相同,甚至相反;公司治理方面,国有股份占比的重要性强于其他治理机制。结合研究结论,本文从重视企业未来可持续发展、构建科研人才队伍培育和激励机制以及统筹考虑上市后的市场表现等角度,为科创企业发展提供了政策建议。     

Generative Bayesian neural network model for risk-neutral pricing of American index options

Financial models with stochastic volatility or jumps play a critical role as alternative option pricing models for the classical Black–Scholes model, which have the ability to fit different market volatility structures. Recently, machine learning models have elicited considerable attention from researchers because of their improved prediction accuracy in pricing financial derivatives. We propose a generative Bayesian learning model that incorporates a prior reflecting a risk-neutral pricing structure to provide fair prices for the deep ITM and the deep OTM options that are rarely traded. We conduct a comprehensive empirical study to compare classical financial option models with machine learning models in terms of model estimation and prediction using S&P 100 American put options from 2003 to 2012. Results indicate that machine learning models demonstrate better prediction performance than the classical financial option models. Especially, we observe that the generative Bayesian neural network model demonstrates the best overall prediction performance.     

专利转化特征精准识别与预测——以人工智能芯片为例

探讨前沿科技领域专利转化特征并对其进行精准识别与预测，对于我国破解“卡脖子”技术难题及实现科技自立自强具有重要意义。选取人工智能芯片专利领域，采用机器学习算法测度最优转化预测方案，分析全球范围内主要国家或地区专利成功转化影响因素，从企业/高校、国内/国际等不同层面总结专利成功转化的主要特征。结果发现：随机森林算法预测效果较好，人工智能芯片领域专利转化概率服从对数曲线分布，影响高校/企业、国内/国外专利转化特征的因素有所不同。最后，提出高校/科研机构应注重高价值专利维持和团队合作、企业应提升专利技术质量和撰写质量等政策建议。     

Forecasting in social settings: The state of the art

This paper provides a non-systematic review of the progress of forecasting in social settings. It is aimed at someone outside the field of forecasting who wants to understand and appreciate the results of the M4 Competition, and forms a survey paper regarding the state of the art of this discipline. It discusses the recorded improvements in forecast accuracy over time, the need to capture forecast uncertainty, and things that can go wrong with predictions. Subsequently, the review classifies the knowledge achieved over recent years into (i) what we know, (ii) what we are not sure about, and (iii) what we don’t knowIn the first two areas, we explore the difference between explanation and prediction, the existence of an optimal model, the performance of machine learning methods on time series forecasting tasks, the difficulties of predicting non-stable environments, the performance of judgment, and the value added by exogenous variables. The article concludes with the importance of (thin and) fat tails, the challenges and advances in causal inference, and the role of luck.