Positive Economics History, Theory, Pros and Cons, and Example

Positive economics is a fact-based analysis of what is occurring in an economy, without making prescriptions of what should or should not be happening.
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 ...
wusf

Ave Maria clinic numbers reflect slowing of measles cases, last positive case was Feb. 2

The Mater Dei Clinic at the school reported there had been no new testing over 72 hours. Additionally, the clinic reported that the last positive case reported had been on Feb. 2. An outbreak of ...
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 ...