IEEE

Multi-task Learning Based Broadband Multi-harmonic Signal 2D-DOA Estimation Using Sparse Arrays

Abstract: Two-dimensional direction-of-arrival (2D-DOA) estimation plays a key role in array signal processing by providing accurate azimuth and elevation information. This full spatial awareness is ...
marktechpost

Alibaba Open-Sources Zvec: An Embedded Vector Database Bringing SQLite-like Simplicity and High-Performance On-Device RAG to Edge Applications

Alibaba Tongyi Lab research team released ‘Zvec’, an open source, in-process vector database that targets edge and on-device retrieval workloads. It is positioned as ‘the SQLite of vector databases’ ...
Medical Xpress

Multi-stage dual-domain progressive network enhances sparse-view CT reconstruction

A research team led by Professor Wang Hongzhi from the Hefei Institute of Physical Science of the Chinese Academy of Sciences has developed a multi-stage, dual-domain, progressive network with ...
marktechpost

How to Build a Production-Grade Agentic AI System with Hybrid Retrieval, Provenance-First Citations, Repair Loops, and Episodic Memory

In this tutorial, we build an ultra-advanced agentic AI workflow that behaves like a production-grade research and reasoning system rather than a single prompt call. We ingest real web sources ...
GitHub

CausalEmbed: Auto-Regressive Multi-Vector Generation in Latent Space for Visual Document Embedding

1 The Hong Kong University of Science and Technology (Guangzhou) 2 Alibaba Cloud Computing 3 University of Illinois Chicago 4 The Hong Kong University of Science and Technology CausalEmbed: ...
IEEE

Multi-Track Adjustment for Wide-Area SAR Interferometry in Sparse GNSS Scenarios: A Hydrological Case Study Over North China Plain

Abstract: Interferometric Synthetic Aperture Radar (InSAR) is widely used for mapping large-scale surface deformation and capturing long-wavelength geophysical signals. Mosaicking multiple frames and ...
Space.com

February's 'rare planetary alignment' is coming — here's what to expect from the planet parade

Mercury, Venus, Neptune, Saturn, Uranus and Jupiter will appear together shortly after sunset on Feb. 28 — but is this the "planet parade" we've been waiting for? When you purchase through links on ...