نتایج جستجو برای: symbolic sequences
تعداد نتایج: 242153 فیلتر نتایج به سال:
Symbolic nuclear magnetic resonance (NMR) product operator calculations provide an analytic, intuitive, yet precise description of the time evolution of the density operator during an NMR experiment. NMR experiments are implemented as pulse sequences consisting of short radiofrequency pulses separated by delay periods during which the spin system evolves under the influence of the static extern...
This paper describes a method for music classification based solely on the audio contents of the music signal. More specifically, the audio signal is converted into a compact symbolic representation that retains timbral characteristics and accounts for the temporal structure of a music piece. Models that capture the temporal dependencies observed in the symbolic sequences of a set of music piec...
The computational analysis of musical harmony has received a lot of attention the last decades. Although it is widely recognized that extracting symbolic chord labels from music yields useful abstractions, and the number of chord labeling algorithms for symbolic and audio data is steadily growing, surprisingly little effort has been put into comparing sequences of chord labels. This study prese...
this paper, a pattern-based stock data mining approach which transforms the numeric stock data to symbolic sequences, carries out sequential and non-sequential association analysis and uses the mined rules in classifying/predicting the further price movements is proposed. Two formulations of the problem are considered. They are intra-stock mining which focuses on finding frequently appearing pa...
A lot of attention is now being focused on connectionist models known under the name “reservoir computing”. The most prominent example of these approaches is a recurrent neural network architecture called an echo state network (ESN). ESNs were successfully applied in more real-valued time series modeling tasks and performed exceptionally well. Also using ESNs for processing symbolic sequences s...
This doctoral thesis is concerned with the problems of the predictability and the temporal structure of indices of the climatic variability in the tropical Pacific, which is known in the scale of decades as El Niño-Southern Oscillation (ENSO). For this purpose, time series of the anomalies and persistences of the Southern Oscillation Index (SOI), Multivariate ENSO Index (MEI) and of the Sea Sur...
We give an average complexity analysis for a new formalism pertaining periodic and aperiodic ternary complementary pairs. The analysis is done in three levels, so that we end up with an accurate estimate. The way of separating the candidate pairs into suitable classes of ternary sequences is interesting, allowing us to use fundamental tools of Symbolic Computation, such as Holonomic functions a...
Many techniques for protocol analysis use term replacement rules to express the reduction properties of symbolic encryption operations. Some approaches must solve equations in those operators, using sequences of narrowing steps. It is shown that every innnite sequence of narrowing steps for popular abstract encryp-tion operators has a loop, and hence there is a terminating algorithm to solve su...
Typesetting sequences of numerical values, represented via symbolic names which get their values on the fly, is dealt with. The sorting of the sequence is done by a linear sorting algorithm, of complexity O(n2). Three or more consecutive numbers are typeset as a range. The objective was to encode typesetting sequences of numbers as simple,concise, general, compatible, modular, orthogonal, and :...
in this paper, we introduce and study the concepts of $mathcal{i}_2$-convergence, $mathcal{i}_2^{*}$-convergence for double sequences of fuzzy real numbers, where $mathcal{i}_2$ denotes the ideal of subsets of $mathbb n times mathbb n$. also, we study some properties and relations of them.
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