106 citations · 316 across the 15 of their papers we have counts for
18 papers
Undirected Network Coding and Faster External-Memory Integer Sorting
Baochun Li, Zongpeng Li, Sirui Liu
Network coding allows intermediate nodes to combine messages. Fractional routing instead splits each message among source-destination paths and forwards its parts without combining…
On the Multiple-Unicast Conjecture: Beyond Cut Metrics
Sirui Liu, Li Que, Zongpeng Li +1
Network coding allows intermediate nodes to encode received messages before transmission. The multiple-unicast conjecture asserts that coding has no throughput advantage over fract…
Feature Reconstruction Attacks and Countermeasures of DNN training in Vertical Federated Learning
Peng Ye, Zhifeng Jiang, Wei Wang +2
Federated learning (FL) has increasingly been deployed, in its vertical form, among organizations to facilitate secure collaborative training over siloed data. In vertical FL (VFL)…
Pisces: Efficient Federated Learning via Guided Asynchronous Training
Zhifeng Jiang, Wei Wang, Baochun Li +1
Federated learning (FL) is typically performed in a synchronous parallel manner, where the involvement of a slow client delays a training iteration. Current FL systems employ a par…
What Should Future Wireless Network Architectures Be?
Lu Yang, Ping Li, Miaomiao Dong +5
The accelerated convergence of digital and real-world lifestyles has imposed unprecedented demands on today's wireless network architectures, as it is highly desirable for such arc…
Generative Causal Explanations for Graph Neural Networks
Wanyu Lin, Hao Lan, Baochun Li
This paper presents Gem, a model-agnostic approach for providing interpretable explanations for any GNNs on various graph learning tasks. Specifically, we formulate the problem of…
Shoestring: Graph-Based Semi-Supervised Learning with Severely Limited Labeled Data
Wanyu Lin, Zhaolin Gao, Baochun Li
Graph-based semi-supervised learning has been shown to be one of the most effective approaches for classification tasks from a wide range of domains, such as image classification a…
Low-Latency Network-Adaptive Error Control for Interactive Streaming
Salma Emara, Silas L. Fong, Baochun Li +4
We introduce a novel network-adaptive algorithm that is suitable for alleviating network packet losses for low-latency interactive communications between a source and a destination…
Optimal Multiplexed Erasure Codes for Streaming Messages with Different Decoding Delays
Silas L. Fong, Ashish Khisti, Baochun Li +3
This paper considers multiplexing two sequences of messages with two different decoding delays over a packet erasure channel. In each time slot, the source constructs a packet base…
Optimal Streaming Erasure Codes over the Three-Node Relay Network
Silas L. Fong, Ashish Khisti, Baochun Li +3
This paper investigates low-latency streaming codes for a three-node relay network. The source transmits a sequence of messages (streaming messages) to the destination through the…
Semi-Dynamic Load Balancing: Efficient Distributed Learning in Non-Dedicated Environments
Chen Chen, Qizhen Weng, Wei Wang +2
Machine learning (ML) models are increasingly trained in clusters with non-dedicated workers possessing heterogeneous resources. In such scenarios, model training efficiency can be…
Dispersing Instant Social Video Service Across Multiple Clouds
Zhi Wang, Baochun Li, Lifeng Sun +2
Instant social video sharing which combines the online social network and user-generated short video streaming services, has become popular in today's Internet. Cloud-based hosting…
Spot Transit: Cheaper Internet Transit for Elastic Traffic
Hong Xu, Baochun Li
We advocate to create a \emph{spot} Internet transit market, where transit is sold using the under-utilized backbone capacity at a lower price. The providers can improve profit by…
Dominant Resource Fairness in Cloud Computing Systems with Heterogeneous Servers
Wei Wang, Baochun Li, Ben Liang
We study the multi-resource allocation problem in cloud computing systems where the resource pool is constructed from a large number of heterogeneous servers, representing differen…
RepFlow: Minimizing Flow Completion Times with Replicated Flows in Data Centers
Hong Xu, Baochun Li
Short TCP flows that are critical for many interactive applications in data centers are plagued by large flows and head-of-line blocking in switches. Hash-based load balancing sche…
Reducing Electricity Demand Charge for Data Centers with Partial Execution
Hong Xu, Baochun Li
Data centers consume a large amount of energy and incur substantial electricity cost. In this paper, we study the familiar problem of reducing data center energy cost with two new…
To Reserve or Not to Reserve: Optimal Online Multi-Instance Acquisition in IaaS Clouds
Wei Wang, Baochun Li, Ben Liang
Infrastructure-as-a-Service (IaaS) clouds offer diverse instance purchasing options. A user can either run instances on demand and pay only for what it uses, or it can prepay to re…
Celerity: A Low-Delay Multi-Party Conferencing Solution
X. Chen, M. Chen, B. Li +3
In this paper, we attempt to revisit the problem of multi-party conferencing from a practical perspective, and to rethink the design space involved in this problem. We believe that…