visual ophthalmologist an automated system for classification of retinal damage

supervised and unsupervised pattern recognition

supervised and unsupervised pattern recognition

... reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage or retrieval system, without ... number of very simple and somewhat primitive devices has captured the imagination of scientists and engineers for many years In recent years, the possibility of implementing such systems by means of ... outer product in the LHS of Equation 1.72 is the total covariance of the predictor variables and can be decomposed in the form of within-covariance and between-covariance matrix combinations...

Ngày tải lên: 24/08/2014, 17:51

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a comparison of neural network architectures for

a comparison of neural network architectures for

... measures: an information measure, an orthogonality measure, and a combination of the two The information measure is based on Shannon’s entropy It is a statistical measurement of the capability of a ... vectors as input to handwritten digit classifiers has many advantages over the use of the two-dimensional digit images The most important advantage is the reduction of the dimension of the input space ... Institute of Michigan (ERIM) and was used by many researchers to test their handwriting recognition systems [3] All images were moment-normalized to a size of 24×18 as described in [2] A subset of this...

Ngày tải lên: 28/04/2014, 10:10

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Báo cáo khoa học: "Fast Semantic Extraction Using a Novel Neural Network Architecture" docx

Báo cáo khoa học: "Fast Semantic Extraction Using a Novel Neural Network Architecture" docx

... developed for semantic role-labeling annotation We focus here on PropBank PropBank encodes role labels by semantically tagging the syntactic structures of hand 561 annotated parses of sentences ... Sections 02-21 of the PropBank dataset version for training and validation and Section 23 for testing as standard in all our experiments We first describe the part -of- speech tagger we employ, and then ... this would be an elegant solution In practice many words occur infrequently within PropBank, so (independent of the size of d) we can still only learn a very poor representation for words that...

Ngày tải lên: 17/03/2014, 04:20

8 303 0
báo cáo hóa học: " A biologically inspired neural network controller for ballistic arm movements" ppt

báo cáo hóa học: " A biologically inspired neural network controller for ballistic arm movements" ppt

... and the forearm From the angular values q1 and q2 it is possible, by means of direct kinematics, to obtain the Cartesian position of the wrist within the working plane The effect of gravity force ... and q2) in the angular range [0, π] These values can be put in correspondence with the Cartesian coordinates of the free end in the working plane by means of direct kinematic transformation (equation ... the profile of these neural activations having rectangular shapes, and shows the duration of the entire voluntary task ranging in the interval 300 ms and s The transfer function chosen for every...

Ngày tải lên: 19/06/2014, 10:20

17 410 0
A  self organizing  neural  network  model for  a  mechanism  of pattern  recognition unaffected  by  shift  in position

A self organizing neural network model for a mechanism of pattern recognition unaffected by shift in position

... sensitive to one of the features of the stimulus patterns, and there is not a possibility of formation of redundant connections such that two or more S-planes are used for detection of one and the same ... identical for both cells Ust(kl,n) and Vcl_l(n) The size of this range SI is set to be small for the foremost module (/=1) and to become larger and larger for the hinder modules (in accordance with ... network is of analog type That is, the inputs and the output of a cell take non-negative analog values proportional to the pulse density (or instantaneous mean frequency) of the firing of the actual...

Ngày tải lên: 08/07/2014, 17:02

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Báo cáo y học: "Quantitative ultrasound can assess the regeneration process of tissue-engineered cartilage using a complex between adherent bone marrow cells and a three-dimensional scaffold" docx

Báo cáo y học: "Quantitative ultrasound can assess the regeneration process of tissue-engineered cartilage using a complex between adherent bone marrow cells and a three-dimensional scaffold" docx

... for the synthesis and secretion of a cartilaginous matrix, such as proteoglycans and R557 type II collagen, and act as a physical and mechanical support for the seeded cells and their developing ... participated in its design, and performed all the experiments YT and HO participated in the design of the animal study TH, KU, and JY performed the animal study KY, TF, and MS fabricated the three-dimensional ... Meiwa, Tokyo, Japan) One part was used for histological analysis and the other for biochemical analysis Histological samples were fixed in 10% formalin, decalcified in EDTA, and embedded in paraffin...

Ngày tải lên: 09/08/2014, 06:22

8 355 0
Effect of a corner in a three dimensional excavation

Effect of a corner in a three dimensional excavation

... difficulty of modelling the out of plane strut forces of diagonal struts at corner in 2D analysis, and they resorted to approximately model and adjust the equivalent forces and stiffness of struts ... amount of transducers and control required for a 3D excavation are significantly more than those for 2D to obtain meaningful results All of these factors contribute to the difficulty of conducting ... area of the wall, which is total depth of wall * thickness of wall Hence: A3 = * A1 (A of Test 3DK-3 = times of A of Test 3DK-1) A2 = * A1 (A of Test 3DK-2 = times of A of Test 3DK-1) Lm1 = Distance...

Ngày tải lên: 16/09/2015, 17:12

254 474 0
Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc

Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc

... PWM outputs for for for for for (5) for for for for for for for for for for (6) for for for for for 664 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL 38, NO 3, MAY/JUNE 2002 TABLE II ANALYTICAL ... (3) and (4) can be expressed in the general form for for for - (9) for (3) for for for for for for (4) and denotes the sector name where Similarly, the corresponding expressions for mode can be ... phases Because of waveform can also be derived for and symmetry, the turn-off times (see Fig 4) can be given as - - (7) for - for - (8) state pulsewidths are evident and the corresponding and from...

Ngày tải lên: 22/12/2013, 08:16

10 523 0
Effect of periodic suction on three dimensional flow and heat transfer past a vertical porous plate embedded in a porous medium

Effect of periodic suction on three dimensional flow and heat transfer past a vertical porous plate embedded in a porous medium

... number of research papers of some International Journals Dr Das is currently acting as the honorary member of editorial board of Indian Journal of Science and Technology and as Referee of AMSE ... equations for the velocity and temperature of the flow field are solved employing perturbation technique and the effects of the flow parameters on the velocity and temperature of the flow field and ... friction and the rate of heat transfer have been discussed with the help of Figures 1-5 and Tables 12, respectively 4.1 Velocity field The velocity of the flow field is found to change substantially...

Ngày tải lên: 05/09/2013, 14:58

12 494 0
TIỂU LUẬN môn học CHUYÊN đề đề tài NEURAL MODEL ANH NETWORK ARCHITECTURES (NẺURAL NETWORK DESIGN)

TIỂU LUẬN môn học CHUYÊN đề đề tài NEURAL MODEL ANH NETWORK ARCHITECTURES (NẺURAL NETWORK DESIGN)

... bị trễ bước thời gian ( điều giả thiết thời gian cập nhật bước rời rác nhận giá trị nguyên.) ví dụ công thức 2.7 yêu cầu tằng đầu cho giá trị ban đầu thời điểm t ≈0 Điều kiện ban đầu trình bày ... Hyperbolic tangent sigmoid (tansig) Nhóm 14 19 Tiểu luận chuyên đề Đầu tiên tính net input n: Bây ta tính đầu cho hàm chuyển i a = hardlims(-1.8) = -1 ii a = satlin(-1.8) = iii a = tansig(-1.8) ... trình bày hình 2.11 nhờ đường cong tới điểm cuối khối trễ Khối xây dựng liên quan khác mà sử dụng mạng hồi quy thời gian tiếp diễn chương 15 – 18, máy tích phân, mà trình bày hình 2.12 Hình 2.12...

Ngày tải lên: 29/12/2013, 11:17

21 486 0
Tài liệu A Backpropagation Neural Network for Computer Network Security doc

Tài liệu A Backpropagation Neural Network for Computer Network Security doc

... attacks IEEE Trans Systems, Man and Cybernetics Part A: Systems and Humans, 31: 294-299 Zhou, T., X Liao and Y Chen, 2004 A novel symmetric cryptography based on chaotic signal generator and a clipped ... realization of a chaotic neural signal security system Pattern Recognition and Image Analysis (Advances in Mathematical Theory and Applications), 12: 70-79 15 Li, S and X Zheng, 2002 Cryptanalysis of ... Encryption Standard (DES), which has been used widely, even by choosing small values for N and N' As an example, if N=5 and N' = 1, then these values generate a space of 1029 times larger than that of...

Ngày tải lên: 14/02/2014, 16:20

6 536 0
Báo cáo khoa học: Three-dimensional structure of a thermostable native cellobiohydrolase, CBH IB, and molecular characterization of the cel7 gene from the filamentous fungus, Talaromyces emersonii ppt

Báo cáo khoa học: Three-dimensional structure of a thermostable native cellobiohydrolase, CBH IB, and molecular characterization of the cel7 gene from the filamentous fungus, Talaromyces emersonii ppt

... (lane 5); galactitol at 48 h (lane 6); methyl xylose at 36 h (lane 7); glycerol at 48 h (lane 8); gentiobiose at 48 h (lane 9); cellobiose at 48 h (lane 10); and beech wood xylan at 48 h (lane ... after a further h (lane 15) Time course transcription, 24 h and 48 h (lanes 16 and 17) of cel7 after transfer to lactose The bottom panel is the 18S ribosomal RNA loading control ˚ for the main chain ... 0.7 and overall G-factor, a measure of the normality of the structure, was 0.0 Fig SDS/PAGE and activity analysis of recombinant cellobiohydrolase (A) SDS/ PAGE [10% (w/v) gel] analysis of purified...

Ngày tải lên: 23/03/2014, 13:20

12 554 0
Báo cáo khoa học: "Discriminative Training of a Neural Network Statistical Parser" pdf

Báo cáo khoa học: "Discriminative Training of a Neural Network Statistical Parser" pdf

... trained several networks for each of the GSSN models and chose the best ones based on their validation performance We then trained one network for each of the DGSSN models and for the DSSN model The ... joint meeting of North American Chapter of the Association for Computational Linguistics and the Human Language Technology Conf., pages 103–110, Edmonton, Canada Mark Johnson 2001 Joint and conditional ... Meeting of North American Chapter of Association for Computational Linguistics, pages 132–139, Seattle, Washington Michael Collins and Nigel Duffy 2002 New ranking algorithms for parsing and tagging:...

Ngày tải lên: 23/03/2014, 19:20

8 408 0
Báo cáo Y học: Modeling the three-dimensional structure of H+-ATPase of Neurospora crassa Proposal for a proton pathway from the analysis of internal cavities pptx

Báo cáo Y học: Modeling the three-dimensional structure of H+-ATPase of Neurospora crassa Proposal for a proton pathway from the analysis of internal cavities pptx

... surface envelope of the enzymes Cavities are colored by atom type (red stands for O, blue for N and yellow for S) beginning of the transmembrane domain The presence of this string of polar cavities ... [39] [38] an acidic shift of the optimum pH and an increased resistance towards inhibition by vanadate These effects are consistent with a slow down of the transport-linked E1P– E2P transition ... (2000) Abolishment of proton pumping and accumulation in the E1-P conformational state of a plant plasma membrane H+ATPase by substitution of a conserved aspartyl residue in transmembrane segment J...

Ngày tải lên: 23/03/2014, 21:20

13 514 0
a facial expression classification system integrating canny, principal component analysis and artificial neural network

a facial expression classification system integrating canny, principal component analysis and artificial neural network

... been the dean of Information System department of Informatics Technology Faculty and a member of Science committee of Informatics Technology Faculty His research interests include soft computing ... DISGUST AND NEUTRAL Feeling Max Anger Y1 Fear Y2 Surprise Y3 Sad Y4 Fig 3D chart of Fast Training with 200000 epochs Proposal System (Canny_PCA_ANN) 85.7% This method (Canny_PCA_ANN) improved the Classification ... Pattern Analysis and Machine Intelligence , 1999, Vol 21, pp1357-1362 Y Cho and Z Chi, “Genetic Evolution Processing of Data Structure for Image Classification , IEEE Transaction on Knowledge and...

Ngày tải lên: 28/04/2014, 10:06

6 410 1
designing and implementing a neural network library for handwriting detection, image analysis etc

designing and implementing a neural network library for handwriting detection, image analysis etc

... network can learn from a set of samples For training a neural network, first you provide a set of inputs and outputs For example, if you need a neural network to detect fractures from an X-Ray of a ... programming model for this Neural Network Library? Answer - The focus is on the understandability of basic concepts, not on performance Q) Is this neural network library fully optimized? Answer - Not ... artificial neuron consists of various inputs, much like the biological neuron Instead of Soma and Axon, we have a summation unit and a transfer function unit The output of one neuron can be given as input...

Ngày tải lên: 28/04/2014, 10:10

20 416 0
a  neural  network  model  for  limb  trajectory  formation

a neural network model for limb trajectory formation

... systems is an open problem and will be the object of further investigations Acknowledgements The authors wish to thank Michael Jordan for his constant support and valuable suggestions, and for making ... architecture capable of providing a uniform representational framework for environment and movements (Hogan 1984) The analogical nature of neural networks might provide significant insights into ... inhibition of agonist-antagonist pairs Inhibition and excitation were more marked for shoulder, elbow and double-joint muscles than for wrist muscles This result agrees with the experimental data of...

Ngày tải lên: 28/04/2014, 10:16

7 472 0

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