RU2014147972A - COMPRESSION METHOD AND DEVICE USING AN NEURAL NETWORK APPROACH - Google Patents
COMPRESSION METHOD AND DEVICE USING AN NEURAL NETWORK APPROACH Download PDFInfo
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Abstract
1. Способ сжатия данных, содержащий этапы, на которых:разделяют пространство входных данных на множество элементов данных, причем каждый элемент данных характеризуется координатным вектором, задающим координаты элемента данных в пространстве входных данных, и вектором объемных значений, определяющим объемные значения элемента данных в пространстве входных данных;используя координатные векторы, определяют адреса ячеек в ассоциативной памяти, с которыми должны быть связаны элементы данных, причем каждая из ячеек имеет весовое значение;связывают элементы данных с ячейками в ассоциативной памяти на основе определенных адресов;аккумулируют все весовые значения ячеек, связанных с элементами данных, для получения весового вектора;вычитают весовой вектор из вектора объемных значений для формирования сигнала ошибки; иесли сигнал ошибки является ненулевым, включают режим обучения, при котором весовые значения ячеек, связанных с элементами данных, регулируют на основе сигнала ошибки; илиесли сигнал ошибки является нулевым, включают режим вывода, при котором вектор сжатых объемных значений вычисляют с использованием весового вектора и затем выводят.2. Способ по п. 1, в котором упомянутый этап определения содержит этап, на котором:определяют адреса ячеек в ассоциативной памяти посредством использования базисного вектора A[n], полученного с помощью следующей формулы:,где a[n] - k-ый элемент базисного вектора A[n] для n-ого момента времени, µ- l-ое размерное значение ассоциативной памяти, N - размерность координатного вектора X[n], ρ - параметр нейронной сети, x[n] - j-ый элемент координатного вектора X[n],, M- размерное значение вдоль i-ой оси.3. Способ по п. 1, в котором весовы1. A data compression method comprising the steps of: dividing the input data space into a plurality of data elements, each data element having a coordinate vector defining the coordinates of the data element in the input data space and a volume vector defining the volume values of the data element in space input data; using coordinate vectors, determine the addresses of cells in associative memory with which data elements should be associated, each cell having a weight value; associate data elements with cells in associative memory based on specific addresses; accumulate all weight values of cells associated with data elements to obtain a weight vector; subtract the weight vector from the volume vector to generate an error signal; if the error signal is non-zero, include a training mode in which the weight values of the cells associated with the data elements are adjusted based on the error signal; or if the error signal is zero, enable an output mode in which a vector of compressed volumetric values is calculated using a weight vector and then outputted. 2. The method of claim 1, wherein said determining step comprises the step of: determining the addresses of cells in associative memory by using the basis vector A [n] obtained using the following formula: where a [n] is the kth element of the basis of the vector A [n] for the n-th moment of time, µ is the l-th dimensional value of associative memory, N is the dimension of the coordinate vector X [n], ρ is the parameter of the neural network, x [n] is the j-th element of the coordinate vector X [n] ,, M is the dimensional value along the i-th axis. 3. The method of claim 1, wherein the weights
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US10276134B2 (en) | 2017-03-22 | 2019-04-30 | International Business Machines Corporation | Decision-based data compression by means of deep learning technologies |
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CN115152239A (en) * | 2020-02-20 | 2022-10-04 | 阿莱恩技术有限公司 | Client-side medical imaging data compression and extraction |
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KR100529311B1 (en) * | 2003-01-21 | 2005-11-17 | 삼성전자주식회사 | Apparatus and method for selecting the length of variable length coding bit stream using neural network |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US10276134B2 (en) | 2017-03-22 | 2019-04-30 | International Business Machines Corporation | Decision-based data compression by means of deep learning technologies |
US10586516B2 (en) | 2017-03-22 | 2020-03-10 | International Business Machines Corporation | Decision-based data compression by means of deep learning technologies |
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