國立虎尾科技大學 |

Handwriting Verification Using Deep Convolutional Neural Networks.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Handwriting Verification Using Deep Convolutional Neural Networks./
Author:	Ramprasad, Sanjana.
Description:	1 online resource (92 pages)
Notes:	Source: Masters Abstracts International, Volume: 56-05.
Subject:	Computer science. -
Online resource:	click for full text (PQDT)
ISBN:	9780355046694

Handwriting Verification Using Deep Convolutional Neural Networks.
Ramprasad, Sanjana.

Handwriting Verification Using Deep Convolutional Neural Networks. - 1 online resource (92 pages)

Source: Masters Abstracts International, Volume: 56-05.

Thesis (M.S.)--State University of New York at Buffalo, 2017.

Includes bibliographical references

With the growing popularity Convolutional Neural Networks(CNNs) in computer vision tasks and the ability of them to model intricate patterns in data, we took to extending the study of verifying handwriting using CNNs. Handwriting has been considered to be unique for each individual, which is why they are still of considerable importance in legal documents. Although handwriting is considered to be unique, there still exists variations within a writer's handwriting. We thus seek to build a model that can successfully differentiate writers while remaining invariant to within writer changes without feature engineering as used by previous models. (Individuality of Handwriting, S. N. Srihari et.al 2002).

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355046694Subjects--Topical Terms:

573171
Computer science.
Index Terms--Genre/Form:

554714
Electronic books.

Handwriting Verification Using Deep Convolutional Neural Networks.
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245 1 0 $a Handwriting Verification Using Deep Convolutional Neural Networks.
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500 $a Source: Masters Abstracts International, Volume: 56-05.
500 $a Adviser: Sargur N. Srihari.
502 $a Thesis (M.S.)--State University of New York at Buffalo, 2017.
504 $a Includes bibliographical references
520 $a With the growing popularity Convolutional Neural Networks(CNNs) in computer vision tasks and the ability of them to model intricate patterns in data, we took to extending the study of verifying handwriting using CNNs. Handwriting has been considered to be unique for each individual, which is why they are still of considerable importance in legal documents. Although handwriting is considered to be unique, there still exists variations within a writer's handwriting. We thus seek to build a model that can successfully differentiate writers while remaining invariant to within writer changes without feature engineering as used by previous models. (Individuality of Handwriting, S. N. Srihari et.al 2002).
520 $a We use the CEDAR ,word-level "and" dataset to train and experiment with several CNN architectures based on differences in filter size, feature maps, activation functions, regularization techniques, cost functions, width and depth of the model, pooling operations, strides and optimization techniques. While experimenting with an architecture, we found the model behaved with certain trends, by modeling several of these trends we get an intuitive understanding of the effect of each of these parameters on the model's performance. We use this understanding in each experiment for developing our final architecture. We further split the final architecture into two CNN architectures with the same parameter tuning along with weight and variable sharing and saw a spike in performance.
520 $a The primary objective of our experiments was to test how handwriting verification performs without any feature engineering and using Convolutional Neural Networks for feature extraction. However, we also gain several insights into trends in different architecture results with respect to the dataset and develop a final combination of parameters that was found to perform the best. We hope these insights could be used while tuning more complex models.
520 $a We test the model's performance by identifying two types of error based on model writers: 1) Samples from a known writer---This includes for testing variation within writer's samples seen before as well as between writers 2) Samples from an unknown writer---This includes for testing the generalizing capability of the model on samples of never before seen writers. By measuring these two kinds of errors, we arrive at an architecture that performs optimally for both.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Computer science. $3 573171
650 4 $a Artificial intelligence. $3 559380
655 7 $a Electronic books. $2 local $3 554714
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710 2 $a State University of New York at Buffalo. $b Computer Science and Engineering. $3 1180201
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