Results 61 to 70 of about 49,616 (309)
Revisiting EWMA in High‐Frequency‐Based Portfolio Optimization: A Comparative Assessment
Journal of Applied Econometrics, EarlyView.ABSTRACT This paper compares the statistical and economic performance of state‐of‐the‐art high‐frequency (HF) based multivariate volatility models with a simpler, widely used alternative, the Exponentially Weighted Moving Average (EWMA) filter. Using over two decades of 100 U.S.
Laura Capera Romero, Anne Opschoor
wiley +1 more source
ORACLE DATABASE SECURITY [PDF]
This paper presents some security issues, namely security database system level, data level security, user-level security, user management, resource management and password management. Security is a constant concern in the design and database development.
Cristina-Maria Titrade
core
À l’abri d’Apollon. Les Alcméonides réfugiés à Delphes (514/3-511/0 av. J.-C.)
Pallas, 2020 This article re-examines the sources on the exile period that the Athenian family of the Alcmaeonids spent in Delphi after the murder of Hipparchus in 514 BC.
Francesco Mari
doaj +1 more source
Revue belge de philologie et d'histoire, 1969 Nutton V. The Doctor and the Oracle. In: Revue belge de philologie et d'histoire, tome 47, fasc. 1, 1969. Antiquité — Oudheid. pp. 37-48.
openaire +3 more sources
Bayesian Model Averaging in Causal Instrumental Variable Models
Journal of Applied Econometrics, EarlyView.ABSTRACT Instrumental variables are a popular tool to infer causal effects under unobserved confounding, but choosing suitable instruments is challenging in practice. We propose gIVBMA, a Bayesian model averaging procedure that addresses this challenge by averaging across different sets of instrumental variables and covariates in a structural equation ...
Gregor Steiner, Mark Steel
wiley +1 more source
CoRRBackdoored and privacy-leaking deep neural networks pose a serious threat to the deployment of machine learning systems in security-critical settings. Existing defenses for backdoor detection and membership inference typically require access to clean reference models, extensive retraining, or strong assumptions about the attack mechanism. In this work,
Marco Arazzi, Antonino Nocera
openaire +2 more sources
U.S. Multinational Corporations’ Initial Income‐Shifting Response to the TCJA
Journal of Corporate Accounting &Finance, EarlyView.ABSTRACT I find U.S. multinational corporations (MNCs) responded to the Tax Cuts and Jobs Act (TCJA) of 2017 by increasing income shifted to foreign sources in the first two years following the effective date. Financially constrained MNCs increased income shifting more, while higher operational uncertainty MNCs increased income shifting less than other
Tyler P. Johnson
wiley +1 more source
Habits of Successful Students - June 17, 2009_combined - DE Oracle
, 2009 DE Oracle @ UMUC An Online Learning Magazine for UMUC Faculty Center for Support of Instruction Habits of Successful Students - June 17, 2009 CSI Staff Staff Writer Center for Support of Instruction Published: May-June 2009 Category: » De-oracle-live ...
CSI Staff
core
Zhejiang Daxue xuebao. Lixue ban, 2010 基本表达是海洋地理信息系统(MGIS)的首要问题.针对海洋实测数据多源、多格式以及海量等特点,基于大型关系数据库Oracle9i,实现了数据一体化高效组织和管理.基于OCI应用程序接口,设计并开发数据库引擎,实现了数据的高效存储和访问.基于COM技术,开发了CMa3DView等7大可视化组件,并在海洋GIS系统平台软件MaXplorer中进行集成,实现了海洋实测数据的多维动态表达与分析,包括海洋要素场可视化、海洋要素图可视化以及与其他海洋数据的一体化显示.实际应用表明,本技术方法能有效管理海量实测数据 ...
FENGHang-jian(冯杭建) +1 more
doaj +1 more source