Aosong Feng

Designing data center networks using bottleneck structures

2021

This paper provides a mathematical model of data center performance based on the recently introduced Quantitative Theory of Bottleneck Structures (QTBS). Using the model, we prove that if the traffic pattern is \textit{interference-free}, there exists …

CSPLADE: Learned Sparse Retrieval with Causal Language Models

2025 · arXiv (Cornell University)

In recent years, dense retrieval has been the focus of information retrieval (IR) research. While effective, dense retrieval produces uninterpretable dense vectors, and suffers from the drawback of large index size. Learned sparse retrieval (LSR) …