74 research outputs found
Advances in quantum machine learning
Here we discuss advances in the field of quantum machine learning. The
following document offers a hybrid discussion; both reviewing the field as it
is currently, and suggesting directions for further research. We include both
algorithms and experimental implementations in the discussion. The field's
outlook is generally positive, showing significant promise. However, we believe
there are appreciable hurdles to overcome before one can claim that it is a
primary application of quantum computation.Comment: 38 pages, 17 Figure
Automata theoretic aspects of temporal behaviour and computability in logical neural networks
Imperial Users onl
An analysis of learning in weightless neural systems
This thesis brings together two strands of neural networks research - weightless
systems and statistical learning theory - in an attempt to understand better the
learning and generalisation abilities of a class of pattern classifying machines.
The machines under consideration are n-tuple classifiers. While their analysis falls
outside the domain of more widespread neural networks methods the method has
found considerable application since its first publication in 1959. The larger class of
learning systems to which the n-tuple classifier belongs is known as the set of weightless
or RAM-based systems, because of the fact that they store all their modifiable
information in the nodes rather than as weights on the connections.
The analytical tools used are those of statistical learning theory. Learning methods
and machines are considered in terms of a formal learning problem which allows
the precise definition of terms such as learning and generalisation (in this context).
Results relating the empirical error of the machine on the training set, the number of
training examples and the complexity of the machine (as measured by the Vapnik-
Chervonenkis dimension) to the generalisation error are derived.
In the thesis this theoretical framework is applied for the first time to weightless
systems in general and to n-tuple classifiers in particular. Novel theoretical results
are used to inspire the design of related learning machines and empirical tests are
used to assess the power of these new machines. Also data-independent theoretical
results are compared with data-dependent results to explain the apparent anomalies
in the n-tuple classifier's behaviour.
The thesis takes an original approach to the study of weightless networks, and one
which gives new insights into their strengths as learning machines. It also allows
a new family of learning machines to be introduced and a method for improving
generalisation to be applied.Open Acces
A Survey of Smart Parking Solutions
International audienceConsidering the increase of urban population and traffic congestion, smart parking is always a strategic issue to work on, not only in the research field but also from economic interests. Thanks to information and communication technology evolution, drivers can more efficiently find satisfying parking spaces with smart parking services. The existing and ongoing works on smart parking are complicated and transdisciplinary. While deploying a smart parking system, cities, as well as urban engineers, need to spend a very long time to survey and inspect all the possibilities. Moreover, many varied works involve multiple disciplines, which are closely linked and inseparable. To give a clear overview, we introduce a smart parking ecosystem and propose a comprehensive and thoughtful classification by identifying their functionalities and problematic focuses. We go through the literature over the period of 2000-2016 on parking solutions as they were applied to smart parking development and evolution, and propose three macro-themes: information collection, system deployment, and service dissemination. In each macro-theme, we explain and synthesize the main methodologies used in the existing works and summarize their common goals and visions to solve current parking difficulties. Lastly, we give our engineering insights and show some challenges and open issues. Our survey gives an exhaustive study and a prospect in a multidisciplinary approach. Besides, the main findings of the current state-of-the-art throw out recommendations for future research on smart cities and the Internet architecture
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Stochastic diffusion search review
Stochastic Diffusion Search, first incepted in 1989, belongs to the extended family of swarm intelligence algorithms. In contrast to many nature-inspired algorithms, stochastic diffusion search has a strong mathematical framework describing its behaviour and convergence. In addition to concisely exploring the algorithm in the context of natural swarm intelligence systems, this paper reviews various developments of the algorithm, which have been shown to perform well in a variety of application domains including continuous optimisation, implementation on hardware and medical imaging. This algorithm has also being utilised to argue the potential computational creativity of swarm intelligence systems through the two phases of exploration and exploitatio
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