Search Results for author: Peter Wittek

Found 19 papers, 10 papers with code

Defence against adversarial attacks using classical and quantum-enhanced Boltzmann machines

no code implementations21 Dec 2020 Aidan Kehoe, Peter Wittek, Yanbo Xue, Alejandro Pozas-Kerstjens

We find improvements ranging from 5% to 72% against attacks with Boltzmann machines on the MNIST dataset.

Unfolding as Quantum Annealing

2 code implementations22 Aug 2019 Kyle Cormier, Riccardo Di Sipio, Peter Wittek

High-energy physics is replete with hard computational problems and it is one of the areas where quantum computing could be used to speed up calculations.

Data Analysis, Statistics and Probability High Energy Physics - Experiment Quantum Physics

An Artificial Spiking Quantum Neuron

no code implementations14 Jul 2019 Lasse Bjørn Kristensen, Matthias Degroote, Peter Wittek, Alán Aspuru-Guzik, Nikolaj T. Zinner

Artificial spiking neural networks have found applications in areas where the temporal nature of activation offers an advantage, such as time series prediction and signal processing.

Time Series Time Series Prediction

Vulnerability of quantum classification to adversarial perturbations

no code implementations10 May 2019 Nana Liu, Peter Wittek

Furthermore, this leads to a trade-off between the security of the classification algorithm against adversarial attacks and quantum advantages we expect for high-dimensional problems.

Quantum Physics

Open source software in quantum computing

2 code implementations21 Dec 2018 Mark Fingerhuth, Tomáš Babej, Peter Wittek

Open source software is becoming crucial in the design and testing of quantum algorithms.

Quantum Physics Mathematical Software Programming Languages

Bayesian Deep Learning on a Quantum Computer

2 code implementations29 Jun 2018 Zhikuan Zhao, Alejandro Pozas-Kerstjens, Patrick Rebentrost, Peter Wittek

Furthermore, we demonstrate the execution of the algorithm on contemporary quantum computers and analyze its robustness with respect to realistic noise models.

Gaussian Processes

Automated discovery of characteristic features of phase transitions in many-body localization

no code implementations1 Jun 2018 Patrick Huembeli, Alexandre Dauphin, Peter Wittek, Christian Gogolin

We identify a new "order parameter" for the disorder driven many-body localization (MBL) transition by leveraging artificial intelligence.

Quantum Physics Disordered Systems and Neural Networks

Identifying Quantum Phase Transitions with Adversarial Neural Networks

1 code implementation11 Oct 2017 Patrick Huembeli, Alexandre Dauphin, Peter Wittek

Adversarial domain adaptation uses both types of data to create invariant feature extracting layers in a deep learning architecture.

Domain Adaptation Feature Engineering

Quantum Machine Learning

no code implementations28 Nov 2016 Jacob Biamonte, Peter Wittek, Nicola Pancotti, Patrick Rebentrost, Nathan Wiebe, Seth Lloyd

Fuelled by increasing computer power and algorithmic advances, machine learning techniques have become powerful tools for finding patterns in data.

BIG-bench Machine Learning Quantum Machine Learning

Quantum Enhanced Inference in Markov Logic Networks

no code implementations24 Nov 2016 Peter Wittek, Christian Gogolin

An MLN is essentially a first-order logic template to generate Markov networks.

BIG-bench Machine Learning

Single-shot Adaptive Measurement for Quantum-enhanced Metrology

1 code implementation22 Aug 2016 Pantita Palittapongarnpim, Peter Wittek, Barry C. Sanders

We construct a formal framework for AQEM by modeling the procedure as a decision-making process, and we derive the imprecision and the Cram\'{e}r-Rao lower bound with explicit dependence on the feedback policy.

Decision Making

A Physical Metaphor to Study Semantic Drift

no code implementations3 Aug 2016 Sándor Darányi, Peter Wittek, Konstantinos Konstantinidis, Symeon Papadopoulos, Efstratios Kontopoulos

By using term distances as a measure of semantic relatedness vs. their PageRank values indicating social importance and applied as variable `term mass', gravitation as a metaphor to express changes in the semantic content of a vector field lends a new perspective for experimentation.

Learning in Quantum Control: High-Dimensional Global Optimization for Noisy Quantum Dynamics

1 code implementation12 Jul 2016 Pantita Palittapongarnpim, Peter Wittek, Ehsan Zahedinejad, Shakib Vedaie, Barry C. Sanders

Quantum control is valuable for various quantum technologies such as high-fidelity gates for universal quantum computing, adaptive quantum-enhanced metrology, and ultra-cold atom manipulation.

quantum gate design

Inductive supervised quantum learning

no code implementations24 May 2016 Alex Monràs, Gael Sentís, Peter Wittek

In supervised learning, an inductive learning algorithm extracts general rules from observed training instances, then the rules are applied to test instances.

Learning Theory

Monitoring Term Drift Based on Semantic Consistency in an Evolving Vector Field

1 code implementation5 Feb 2015 Peter Wittek, Sándor Darányi, Efstratios Kontopoulos, Theodoros Moysiadis, Ioannis Kompatsiaris

Based on the Aristotelian concept of potentiality vs. actuality allowing for the study of energy and dynamics in language, we propose a field approach to lexical analysis.

Lexical Analysis Philosophy

Algorithm 950: Ncpol2sdpa---Sparse Semidefinite Programming Relaxations for Polynomial Optimization Problems of Noncommuting Variables

4 code implementations28 Aug 2013 Peter Wittek

A hierarchy of semidefinite programming (SDP) relaxations approximates the global optimum of polynomial optimization problems of noncommuting variables.

Mathematical Software Optimization and Control Computational Physics Quantum Physics G.4

Somoclu: An Efficient Parallel Library for Self-Organizing Maps

4 code implementations7 May 2013 Peter Wittek, Shi Chao Gao, Ik Soo Lim, Li Zhao

Somoclu is a massively parallel tool for training self-organizing maps on large data sets written in C++.

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