activity
20112019
most citedOn the Local Correctness of L^1 Minimization for Dictionary Learning

33 citations · 103 across the 9 of their papers we have counts for

collaborators

10 papers

cs.LG2019

Accelerating Large-Scale Inference with Anisotropic Vector Quantization

Ruiqi Guo, Philip Sun, Erik Lindgren +4

Quantization based techniques are the current state-of-the-art for scaling maximum inner product search to massive databases. Traditional approaches to quantization aim to minimize…

cs.CR2018★ 12 cited

Privacy and Utility Tradeoff in Approximate Differential Privacy

Quan Geng, Wei Ding, Ruiqi Guo +1

We characterize the minimum noise amplitude and power for noise-adding mechanisms in -differential privacy for single real-valued query function. We derive new lower bounds…

cs.CR2018★ 20 cited

Optimal Noise-Adding Mechanism in Additive Differential Privacy

Quan Geng, Wei Ding, Ruiqi Guo +1

We derive the optimal -differentially private query-output independent noise-adding mechanism for single real-valued query function under a general cost-minimization framew…

cs.IT2014★ 1 cited

Symmetric Two-User Gaussian Interference Channel with Common Messages

Quan Geng, Tie Liu

We consider symmetric two-user Gaussian interference channel with common messages. We derive an upper bound on the sum capacity, and show that the upper bound is tight in the low i…

cs.CR2013★ 11 cited

The Optimal Mechanism in Differential Privacy: Multidimensional Setting

Quan Geng, Pramod Viswanath

We derive the optimal -differentially private mechanism for a general two-dimensional real-valued (histogram-like) query function under a utility-maximization (or cost-minimizat…

cs.IT2013

On the Capacity Region of Broadcast Packet Erasure Relay Networks With Feedback

Quan Geng, Hieu T. Do, Rui Wu +3

We derive a new outer bound on the capacity region of broadcast traffic in multiple input broadcast packet erasure channels with feedback, and extend this outer bound to packet era…

cs.DS2013★ 9 cited

Optimal Noise Adding Mechanisms for Approximate Differential Privacy

Quan Geng, Pramod Viswanath

We study the (nearly) optimal mechanisms in -approximate differential privacy for integer-valued query functions and vector-valued (histogram-like) query functions under a u…

cs.CR2012★ 14 cited

The Optimal Mechanism in Differential Privacy

Quan Geng, Pramod Viswanath

We derive the optimal -differentially private mechanism for single real-valued query function under a very general utility-maximization (or cost-minimization) framework. The cla…

cs.IT2012★ 3 cited

Interactive Interference Alignment

Quan Geng, Sreeram Kannan, Pramod Viswanath

We study interference channels (IFC) where interaction among sources and destinations is enabled, e.g., both sources and destinations can talk to each other using full-duplex radio…

cs.IT2011★ 33 cited

On the Local Correctness of L^1 Minimization for Dictionary Learning

Quan Geng, Huan Wang, John Wright

The idea that many important classes of signals can be well-represented by linear combinations of a small set of atoms selected from a given dictionary has had dramatic impact on t…