When do compressed vectors make the same decisions?
Places quantization error inside the ranking and graph-pruning decisions that vector search actually makes, relating reliability to comparison margins, correlated residuals, and execution traces.
A WONDERFUL STAR / ASTRMIRA
Seek the unknown. Build beyond the horizon.
From first principles to real-world intelligence.
We study foundational questions in data, computation, and intelligence,
then turn rigorous ideas into systems people can use.
OUR RESEARCH
We frame questions, build methods, and test ideas through derivation and experiment—letting each finding become the beginning of the next inquiry.
RESEARCH, IN THE OPEN
From foundational problems to new findings across different fields, this is where we record our papers and research progress.
Places quantization error inside the ranking and graph-pruning decisions that vector search actually makes, relating reliability to comparison margins, correlated residuals, and execution traces.
Studies the real utility of a discrete move in extreme low-bit LLMs by evaluating the move along its own path and combining decisions in an evolving model state.
Explains low-bit ranking behavior through covariance structure and coordinate heterogeneity, including why an extra magnitude bit and random rotation help different representations in different ways.
Builds, prunes, and navigates an ANN graph in a training-free two-bit space, reading full vectors only for final reranking and exposing the data regimes where compact topology works.
OUR PRACTICE
Foundational research expands what is possible. Building systems lets real problems answer back.
IDEAS, MADE TANGIBLE
From data foundations and intelligent companions to sustained execution for complex work.
An AI-native embedded database in Rust that unifies vectors, property graphs, and documents for agent memory and local knowledge.
An open-source runtime for AI companions, connecting long-term memory, context, and tools while powering persistent conversation and desktop interaction.
A complete agent harness for complex engineering work, spanning code retrieval, context and memory, multi-agent coordination, and verifiable delivery.
A NOTE ON OUR NAME
Stars change. Curiosity continues.
Astr evokes the distant sky; Mira is a real variable star; Mirage is an imagined horizon still to be reached. We call this image 幻梦星芒—a wonderful star.
Mira changes in brightness and leaves a long ultraviolet tail. It reminds us to preserve imagination around the unknown and leave a trail that others can continue.
Name inspiration · NASA / The Tail of a Wonderful Star ↗LET’S ASK THE NEXT QUESTION
Databases and intelligent systems · Research collaboration · University partnerships
Begin a meaningful collaboration with one real problem.