Topic
statistics
Canonical Variates in Wasserstein Metric Space: New Dimension Reduction Method Enhances Classification
A new paper by Jia and Lin proposes a dimension reduction method for classification when data are represented as distributions rather than points. By maximizing Fisher's ratio in Wasserstein metric space, the technique enhances classification performance and robustly handles distributional representations like Gaussian mixture models.
MA-SBI: Misspecification-Aware Simulation-Based Inference via Side-Channel Guidance
Researchers propose MA-SBI, a misspecification-aware simulation-based inference framework that leverages unstructured side-channel information—such as regime labels or policy bulletins—to correct posterior estimates without requiring ground-truth parameter pairs. The method matches oracle performance on hide-the-calibration benchmarks and improves log-likelihood on real COVID epidemiological data.
Business India to Launch Producer Price Index on June 15
India will introduce the Producer Price Index (PPI) on June 15, marking a significant shift from the Wholesale Price Index (WPI). This transition aims to provide a more comprehensive measure of inflation by including services alongside goods.
Business Industrial Output Growth Slows Amid Sectoral Challenges
India's industrial output growth decelerated to 4.9% in April 2026, down from 5.7% a year earlier, due to a contraction in the mining sector. Despite this, manufacturing and electricity generation showed resilience.
Business India's GST Revenue Climbs 3.2% to Rs 1.94 Lakh Crore in May
India's gross GST collections rose by 3.2% year-on-year to over Rs 1.94 lakh crore in May, driven primarily by a 19.1% increase in import revenues. Despite a decline from April's record collections, the growth underscores the significant role of imports in the country's tax revenue.