Global

125 Articles

How Does LEMUR Bring Late-Interaction Search Closer to Traditional Vector Indexes in txtai?

Artificial intelligence

How Does LEMUR Bring Late-Interaction Search Closer to Traditional Vector Indexes in txtai?

A Hugging Face community article explains the integration of LEMUR with txtai to convert multi-vector search representations into fixed-size vectors that can be indexed, along with the addition of a mean centering option to address token-vector geometry in some models. The results show notable improvements in limited tests, but they do not justify generalizing the advantage to all models or indexing methods.

2026-08-17

Why Is AI Driving Data Centers Toward an 800-Volt Power Architecture?

Cloud Computing and Data Centers

Why Is AI Driving Data Centers Toward an 800-Volt Power Architecture?

The bottleneck in AI data centers is shifting from accelerator capabilities alone to the entire power-conversion chain, from the medium-voltage AC grid to the sub-one-volt power rails inside chips. The 800VDC architecture, along with solid-state transformers, SiC and GaN materials, and PMICs, is emerging as a way to reduce conversion stages, thermal losses, and copper consumption, but it introduces new safety, design, and operational requirements.

2026-08-17

CHERI Redefines Pointer Security to Build Fine-Grained Software Isolation

Cybersecurity

CHERI Redefines Pointer Security to Build Fine-Grained Software Isolation

David Chisnall explains how the CHERI architecture uses hardware capabilities to protect pointers and enforce memory bounds and permissions, providing spatial and temporal security for software written in C and C++ without extensive rewriting. The presentation connects this mechanism to the possibility of building precise isolation between system components while directly sharing data structures instead of relying entirely on traditional RPC mechanisms.

2026-08-16