4 papers
LSM-VEC: A Large-Scale Disk-Based System for Dynamic Vector Search
Shurui Zhong, Dingheng Mo, Siqiang Luo
Vector search underpins modern AI applications by supporting approximate nearest neighbor (ANN) queries over high-dimensional embeddings in tasks like retrieval-augmented generatio…
Don't Forget Range Delete! Enhancing LSM-based Key-Value Stores with More Compatible Lookups and Deletes
Fan Wang, Dingheng Mo, Siqiang Luo
LSM-trees are featured by out-of-place updates, where key deletion is handled by inserting a tombstone to mark its staleness instead of removing it in place. This defers actual rem…
How to Grow an LSM-tree? Towards Bridging the Gap Between Theory and Practice
Dingheng Mo, Siqiang Luo, Stratos Idreos
LSM-tree based key-value stores are widely adopted as the data storage backend in modern big data applications. The LSM-tree grows with data ingestion, by either adding levels with…
Aster: Enhancing LSM-structures for Scalable Graph Database
Dingheng Mo, Junfeng Liu, Fan Wang +1
There is a proliferation of applications requiring the management of large-scale, evolving graphs under workloads with intensive graph updates and lookups. Driven by this challenge…