Calculating Covariance for Effective Stock Portfolio Management

Discover how to calculate covariance to assess stock relationships and optimize your portfolio, balancing risk and potential ...
IEEE

Weighted Contrastive Learning With Hard Negative Mining for Positive and Unlabeled Learning

Abstract: Positive and unlabeled (PU) learning aims to train a suitable classifier simply based on a set of positive data and unlabeled data. The state-of-the-art methods usually formulate PU learning ...
The Hacker News

CISA Orders Removal of Unsupported Edge Devices to Reduce Federal Network Risk

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered Federal Civilian Executive Branch (FCEB) agencies to strengthen asset lifecycle management for edge network devices and ...
Mena FN

Construction of Sobha Elwood will use breakthrough renewable energy systems from Positive Zero

(MENAFNEditorial) Sobha Realty’s luxury villa community development – Sobha Elwood, will deploy innovative clean energy systems from Positive Zero, including the first-of-its-kind mobile battery ...
U.S. News & World Report

Fidelity ZERO Extended Market Index Fund

The investment seeks to provide investment results that correspond to the total return of stocks of mid- to small-capitalization U.S. companies. The fund normally invests at least 80% of assets in ...
Alaska Public Media

Investigation continues into massive oil rig toppling on North Slope as Nuiqsut residents raise concerns

The oil rig that crashed into the frozen ground on the North Slope near Nuiqsut Friday remains too unstable for responders to access the scene, state officials said. While no serious injuries were ...
IEEE

TaiChiNet: Negative-Positive Cross-Attention Network for Breast Lesion Segmentation in Ultrasound Images

Abstract: Breast lesion segmentation in ultrasound images is essential for computer-aided breast-cancer diagnosis. To improve the segmentation performance, most approaches design sophisticated ...