activity
20122017
most citedOn Randomly Projected Hierarchical Clustering with Guarantees

3 citations · 12 across the 6 of their papers we have counts for

collaborators

8 papers

cs.CL2017

Topic Modeling based on Keywords and Context

Johannes Schneider

Current topic models often suffer from discovering topics not matching human intuition, unnatural switching of topics within documents and high computational demands. We address th…

cs.CR2016★ 2 cited

Obfuscation using Encryption

Johannes Schneider, Thomas Locher

Protecting source code against reverse engineering and theft is an important problem. The goal is to carry out computations using confidential algorithms on an untrusted party whil…

cs.DS2016

Oblivious Sorting and Queues

Johannes Schneider

We present a deterministic oblivious LIFO (Stack), FIFO, double-ended and double-ended priority queue as well as an oblivious mergesort and quicksort algorithm. Our techniques and…

cs.DS2016★ 3 cited

Distributed -Coloring in Sublogarithmic Rounds

David G. Harris, Johannes Schneider, Hsin-Hao Su

We give a new randomized distributed algorithm for -coloring in the LOCAL model, running in rounds in a graph of maximum degree…

cs.CR2015★ 1 cited

Secure Numerical and Logical Multi Party Operations

Johannes Schneider, Bin Lu

We derive algorithms for efficient secure numerical and logical operations using a recently introduced scheme for secure multi-party computation~\cite{sch15} in the semi-honest mod…

cs.CR2015★ 3 cited

Secure Multi-Party Computation with a Helper

Johannes Schneider

A client wishes to outsource computation on confidential data to a network of parties. He does not trust a single party but believes that multiple parties do not collude. To solve…