scholarly journals Efficient and effective OCR engine training

2019 ◽  
Vol 23 (1) ◽  
pp. 73-88
Author(s):  
Christian Clausner ◽  
Apostolos Antonacopoulos ◽  
Stefan Pletschacher
Keyword(s):  
Evaluation System ◽  
Training Data ◽  
Text Recognition ◽  
Training Approach ◽  
Efficiency And Effectiveness ◽  
Analysis System ◽  
The Impact ◽  
Data Requirements ◽  
And Training

Abstract We present an efficient and effective approach to train OCR engines using the Aletheia document analysis system. All components required for training are seamlessly integrated into Aletheia: training data preparation, the OCR engine’s training processes themselves, text recognition, and quantitative evaluation of the trained engine. Such a comprehensive training and evaluation system, guided through a GUI, allows for iterative incremental training to achieve best results. The widely used Tesseract OCR engine is used as a case study to demonstrate the efficiency and effectiveness of the proposed approach. Experimental results are presented validating the training approach with two different historical datasets, representative of recent significant digitisation projects. The impact of different training strategies and training data requirements is presented in detail.

scholarly journals Copy-Move Forgery Detection (CMFD) Using Deep Learning for Image and Video Forensics

2021 ◽  
Vol 7 (3) ◽  
pp. 59
Author(s):  
Yohanna Rodriguez-Ortega ◽  
Dora M. Ballesteros ◽  
Diego Renza
Keyword(s):  
Deep Learning ◽  
Transfer Learning ◽  
Training Data ◽  
Video Editing ◽  
Forgery Detection ◽  
Copy Move Forgery Detection ◽  
The Impact ◽  
And Training ◽  
Selection Of ◽  
Traditional Image

With the exponential growth of high-quality fake images in social networks and media, it is necessary to develop recognition algorithms for this type of content. One of the most common types of image and video editing consists of duplicating areas of the image, known as the copy-move technique. Traditional image processing approaches manually look for patterns related to the duplicated content, limiting their use in mass data classification. In contrast, approaches based on deep learning have shown better performance and promising results, but they present generalization problems with a high dependence on training data and the need for appropriate selection of hyperparameters. To overcome this, we propose two approaches that use deep learning, a model by a custom architecture and a model by transfer learning. In each case, the impact of the depth of the network is analyzed in terms of precision (P), recall (R) and F1 score. Additionally, the problem of generalization is addressed with images from eight different open access datasets. Finally, the models are compared in terms of evaluation metrics, and training and inference times. The model by transfer learning of VGG-16 achieves metrics about 10% higher than the model by a custom architecture, however, it requires approximately twice as much inference time as the latter.

scholarly journals The Ecuadorian Banana Farms Managers’ Perceptions: Innovation as a Driver of Environmental Sustainability Practices

Agriculture ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 213
Author(s):  
Alicia Ramírez-Orellana ◽  
Daniel Ruiz-Palomo ◽  
Alfonso Rojo-Ramírez ◽  
John E. Burgos-Burgos
Keyword(s):  
Information Systems ◽  
Environmental Sustainability ◽  
Structural Equation ◽  
Equation Modeling ◽  
Environmental Practices ◽  
Sustainability Practices ◽  
Policy Incentives ◽  
The Impact ◽  
And Training

This article aims to explore the perceptions of banana farms managers towards environmental sustainability practices through the impact of innovation, adoption of information systems, and training employees through a case study in the province of El Oro (Ecuador). Furthermore, the paper assesses how farmers’ perceptions could guide public policy incentives. PLS-Structural Equation Modeling are used as the framework by which the constructs is represented within the model. The model explained 59% of the environmental sustainability practices of Ecuadorian banana farms. The results indicate that environmental sustainability practices were positively influenced mainly by training employees, innovation, and adoption of information systems. Additionally, both the adoption of information systems and training employees indirectly influenced sustainable practices through innovation as a mediator. We may conclude that in the Ecuadorian banana farms, changes in environmental practices are derived from innovation strategies as an axis of development of useful information and training employees in public policies.

Professional Identity

2020 ◽  
pp. 227-246
Author(s):  
Aaron Ackerley
Keyword(s):  
Professional Identity ◽  
Cultural Changes ◽  
Newspaper Industry ◽  
Fourth Estate ◽  
Wide Range ◽  
Key Topics ◽  
British Press ◽  
The Impact ◽  
And Training

This chapter surveys changing notions of professional identity in the twentieth-century British press. The term ‘journalist’ is highly contested, covering a wide range of figures with different forms of experience and training as well as a wide range of roles within and beyond news organisations. Journalism has also lacked the clearly defined rules of practice and established pathways into the occupation evident in other careers that are classed as professions, such as medicine and law. By exploring key topics such as continuities from the nineteenth-century press, the rise of professionalism and journalists’ associations and unions, the myth of the ‘Fourth Estate’ and struggles over press regulation, and the impact of digitisation, this chapter explains how notions of professional identity within journalism have changed in response to wider social and cultural changes and changes within the newspaper industry itself. These topics are also explored in short case study, focused on the Guardian.

The Evolving Role of Task-Group Leaders, A Field Study

1988 ◽  
Vol 32 (13) ◽  
pp. 760-764
Author(s):  
Robert F. Randolph
Keyword(s):  
Group Performance ◽  
Training Data ◽  
Underground Coal Mining ◽  
Group Leaders ◽  
Underground Coal Mines ◽  
And Performance ◽  
Task Oriented ◽  
The Impact ◽  
And Training

Leaders of task-oriented production groups play an important role in their group's functioning and performance. That role also evolves as groups mature and learn to work together more smoothly. The present study uses a functional analysis of the evolving role of supervisors of underground coal mining crews to evaluate the impact of supervisors' characteristics and behaviors on their crews' efficiency and safety, and makes recommendations for improving supervisory selection and training. Data were gathered from a sample of 138 supervisors at 13 underground coal mines. Detailed structured observations of the supervisors indicated that most of their time was spent attending to hardware and paperwork, while comparatively little time was spent on person to person “leadership”. The findings point out that while group needs changed over time, the supervisors' behaviors typically did not keep pace and probably restricted group performance.

Measuring Wildfire Impacts: Method and Case Study

1987 ◽  
Vol 11 (3) ◽  
pp. 143-147
Author(s):  
W. L. Mills ◽  
S. D. Shnitzler ◽  
R. S. Meldahl
Keyword(s):  
Economic Impact ◽  
Cash Flow ◽  
Flow Model ◽  
Growth And Yield ◽  
Timber Production ◽  
Discounted Cash Flow ◽  
The Impact ◽  
Data Requirements

Abstract A discounted cash flow model called the Impact Appraisal Model (IAM) computes the economic impact due to a change in timber production caused by a wildfire. Data requirements for the IAM can be obtained using standard inventory procedures to estimate the pre- and post-fire stand conditionsneeded to initiate a growth and yield simulator. The model is demonstrated using five loblolly plantations that burned in 1980 and 1981. South. J. Appl. For. 11(3):143-147.

Workflow Complexities of Fit Criteria on Strategy Applications and Structure Adaptations

2015 ◽  
Vol 14 (02) ◽  
pp. 1550017
Author(s):  
Noriss Kweku Hammah ◽  
Rahinah Ibrahim
Keyword(s):  
Strong Support ◽  
Knowledge Flow ◽  
Multiple Sources ◽  
Virtual Design ◽  
Effective Strategies ◽  
Efficiency And Effectiveness ◽  
Planning Department ◽  
Virtual Design Team ◽  
The Impact

In studying the correlation between structure–strategy and workflow process, empirical research has shown that knowledge flow has an influence on professional team workflow performance. Using multiple sources of case study evidence, we propose a contingent model of a criteria fit in which the effect of structure on strategies is efficiency of Knowledge Applicability (KA) and effectiveness of Knowledge Adaptability (KA). A case study analysis of building permit approval processing by the Town and Country Planning Department (TCPD) and the various planning agencies in Ghana finds strong support for the model explaining that structure is the measurement attribute determining the efficiency and effectiveness of knowledge flow. A framework of four types of KA is outlined. These show that the viability of organisations is contingent on adaptations of efficient structure and applications of effective strategies. With an emphasis on two organisational environmental variables (uncertainty and equivocality) and structural configuration, we demonstrated the impact of formalisation and centralisation on knowledge flow and workflow process using Virtual Design Team Computational Organisational Theory (VDTCOT).

Keeping Great Teachers: A Case Study on the Impact and Implementation of a Pilot Teacher Evaluation System

2016 ◽  
Vol 32 (3) ◽  
pp. 363-394 ◽  
Author(s):  
Claire Robertson-Kraft ◽  
Rosaline S. Zhang
Keyword(s):  
Teacher Evaluation ◽  
Teacher Retention ◽  
Evaluation System ◽  
School Level ◽  
Evaluation Systems ◽  
Teacher Survey ◽  
Teacher Evaluation Systems ◽  
The Individual ◽  
The Impact

A growing body of research examines the impact of recent teacher evaluation systems; however, we have limited knowledge on how these systems influence teacher retention. This study uses a mixed-methods design to examine teacher retention patterns during the pilot year of an evaluation system in an urban school district in Texas. We used difference-in-differences analysis to examine the impact of the new system on school-level teacher turnover and administered a teacher survey ( N = 1,301) to investigate individual and school-level factors influencing retention. This quantitative analysis was supplemented with interview data from two case study schools. Results suggest that, overall, the new evaluation system did not have a significant effect on teacher retention, but there was significant variation at the individual and school level. This study has important implications for policymakers developing new evaluation systems and researchers interested in evaluating their impact on retention.

scholarly journals The Role of Organization Culture, Leadership and Training Towards Improving Work Performance Country Civil Worker: Case Study in Financial and Development Supervisory Agency

2020 ◽  
Vol 4 (2) ◽  
pp. 115-126
Author(s):  
Muhammad Ramaditya ◽  
Amirul Wahid Prihantoro
Keyword(s):  
Organizational Culture ◽  
Random Sampling ◽  
Work Performance ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Organization Culture ◽  
The Impact ◽  
And Training

The objective of this study is analyzed the impact of organizational culture, training, and leadership on the work performance of civil workers in financial and development supervisory agency. This research uses an associative approach with simple random sampling technique which is measured by SEM using the Smart PLS 3.0 application. The population of this study was 330 civil workers in Financial and Development Supervisory Agency (BPKP). The results of the study shown that the Organizational Culture Variables did not significantly influence work Performance of the civil worker in Financial and Development Supervisory Agency, but do not pass the reliability test. Training Variables have a positive and significant effect on the work performance of the civil workers. Leadership variables have a positive and significant effect on the work performance of the civil workers in Financial and Development Supervisory Agency.

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