• The KIPS Transactions:PartD
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• v.18D no.1
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• pp.67-80
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• 2011

On an automated business document processing system maintaining financial data, errors on query based retrieval of numbers are critical to overall performance and usability of the system. Automatic spelling correction methods have been emerged and have played important role in development of information retrieval system. However scope of the methods was limited to the symbols, for example alphabetic letter strings, which can be reserved in the form of trainable templates or custom dictionary. On the other hand, numbers, a sequence of digits, are not the objects that can be reserved into a dictionary but a pure markov sequence. In this paper we proposed a new OCR model for spelling correction for numbers using the multiple streams and the context based correction on top of probabilistic information retrieval framework. We implemented the proposed error correction model as a sub-module and integrated into an existing automated invoice document processing system. We also presented the comparative test results that indicated significant enhancement of overall precision of the system by our model.

• The Journal of Information Technology
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• v.4 no.2
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• pp.69-81
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• 2001

In this paper, we examine work in the evolution of content-based retrieval systems that rely on an intelligent infrastructure. Here, we refer to intelligence as the capabilities of the systems to build and maintain situational or world models, utilize dynamic knowledge representations, exploit context and overage advanced reasoning and learning capabilities. We argue that these elements are essential to producing effective systems for retrieving visual information at semantic levels matching those of human perception and cognition. In this paper, we review relevant research on the understanding of human intelligence and construction of intelligent systems in the fields of cognitive psychology, artificial intelligence, semiotics. We also discuss how some of the principal ideas from these fields lead to new opportunities and capabilities for content-based retrieval systems. Finally, we discribe some of our efforts in these directions. In particular, we present MediaNet, a multimedia knowledge presentation framework that facilitate and enable intelligent content-based retrieval.

• School Mathematics
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• v.13 no.4
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• pp.581-598
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• 2011

Given the growing agreement that algebra should be taught in the early stage of the curriculum, considerable studies have been conducted with regard to early algebra in the elementary school. However, there has been lack of research on how to organize mathematic lessons to develop of algebraic reasoning ability of the elementary school students. This research attempted to gain specific and practical information on effective algebraic teaching and learning in the elementary school. An exploratory qualitative case study was conducted to the fourth graders. This paper focused on the associative law of the multiplication. This paper showed what kinds of activities a teacher may organize following three steps: (a) focus on the properties of numbers and operations in specific situations, (b) discovery of the properties of numbers and operations with many examples, and (c) generalization of the properties of numbers and operations in arbitrary situations. Given the steps, this paper included an analysis on how the students developed their algebraic reasoning. This study provides implications on the important factors that lead to the development of algebraic reasoning ability for elementary students.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.27 no.4
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• pp.85-104
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• 2016

The purpose of this study is to suggest the developmental strategies of information literacy program based on the integrated topics to promote inquiry abilities of middle school students who take part in the free semester system. To that end, the content of the 2015 revised curriculum on a national level was analyzed to develop 6 inquiry themes that incorporate Korean, Social Studies, Music and Art. The instruction and learning guide were consisted of three stages of forming a background knowledge, researching and creating and evaluating the conclusion of the research. The detailed activities for research step were consisted of the four steps of recognition of the problem, information analysis and interpretation, compilation of information and evaluation for each activity. Among the themes "environment" and "appreciation" were applied to a public library and a middle school library as a trial. The trial application saw that students took an interest in programs that subject themes are link with various topics. They were also very satisfied with such programs.

• Archives of design research
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• v.14 no.1
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• pp.7-16
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• 2001

Human beings have been leading their life and desirable social life through communication. Human communication has been changed and expanded through language, letters, printing media, broadcasting media, and more recently network communication media. Since the invention of characters, books have been the human beings' communication medium that have the longest history, and they have preserved and succeeded human spiritual world. Children's picture books are also a communication medium composed of the transmitter of the information, message, medium, and the receiver, and makes the process of communication. The sender: writer, illustrator, and editor, analyzes children, special receiver, symbolizes messages, make up contents and make communication come true by selecting media and effectively delivering them to children. Considering the developmental characteristics of the receiver, children and their desires, visual media such as the writings and illustrations. The writings and illustrations are the most appropriate for communication with children. The first, picture books are for the communication between grown-ups and children, and also that with society for helping children find their identity and perform their roles. The second, through the message of writings and illustrations young children acquire human communication ability of this age. That is, they experience and learn visual communication and letter communication

• Journal of Educational Research in Mathematics
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• v.24 no.2
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• pp.269-283
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• 2014

Recently, 3S Mathematics Education (Storytelling mathematics education, SMART mathematics education, and STEAM mathematics education) is emphasized. Based on recently published report on Storytelling mathematics textbook, we propose executable expression based SMART storytelling mathematics related to the elementary mathematic curriculum on 3D building blocks. We designed letters and expressions to represent three dimensional shape of 3D building blocks, and we compare its characteristics with that of LEGO blocks. We assert that text-based executable expressions not only construct what students want to make but also teachers can read students thinking process and can support educational help based on students needs. We also present linear function, quadratic function, and function variable concepts using executable expressions based on 3D building block as an example of SMART storytelling mathematics. This research was supported by the collaborated creativity mentoring project between Siheung City and college of education at Seoul National University. We hope designed executable expressions can be used for the development of SMART storytelling mathematics education.

• School Mathematics
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• v.5 no.4
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• pp.521-540
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• 2003

The processes of mathematics development and the results of it are always those of making a conquest of the circumscription by historical inevitability within the historical circumscription. It is in this article that I try to show this processes through the history of calculus. This article develops on the basis of the dialectical materialism. It views the change and development as the facts that take place not by individual subjective judgments but by social-historical material conditions as the first conditions. The dialectical materialism is appropriate for explaining calculus treated in full-scale during the 17th century, passing over ahistorical vacuum after Archimedes about B.C. 4th century. It is also appropriate for explaining such facts as frequent simultaneous discoveries observed in the process of the development of calculus. 1 try to show that mathematics is social-historical products, neither the development of the logically formal symbols nor the invention by subjectivity. By this, I hope to furnish philosophical bases on the discussion that mathematics teaching-learning must start from the real world.

• Journal of the Korean Society for Library and Information Science
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• v.45 no.3
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• pp.49-68
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• 2011

The nature of supervision is to improve the quality of school education by assisting the teaching activities of teachers and development of a learning community. The school library should be considered a classroom, and should offer library-assisted instruction and information literacy through collaboration between the teacher librarian and subject teachers. Therefore, it should be under the systematic and settled supervision of school library experts. However, analysis shows school library-related divisions have carried out administrative supports in the 16 city and provincial education offices. It is necessary to seek a new supervision system in order to develop and support the education of teacher librarians and the educational value of school libraries. This study suggests The Reading and Library Section which integrates reading in school and public libraries as an independent division in municipal and provincial offices of education.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.22 no.4
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• pp.115-131
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• 2011

The purpose of this study is to provide self-evaluation indicators that each school could judge on its basic conditions for the school library opening to local community. School library opening to local community is one of the significantly operational strategies to contribute to the development of the learning community. But the school library has insufficient resources and support system for their local services. According to the survey teacher librarians who have the experience for their school library opening to local community have considered of deploying teacher librarian as the most important factor. And they asserted emphatically that school library would secure personnel expenses and obtain facilities and resources to provide the stable and systematic service. Also among the school library's educational activities, reading education is considered the most suitable program for the community.

• The Journal of Bigdata
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• v.5 no.1
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• pp.197-208
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• 2020

Lexical ambiguity means that a word can be interpreted as two or more meanings, such as homonym and polysemy, and there are many cases of word sense ambiguation in words expressing emotions. In terms of projecting human psychology, these words convey specific and rich contexts, resulting in lexical ambiguity. In this study, we propose an emotional classification model that disambiguate word sense using bidirectional LSTM. It is based on the assumption that if the information of the surrounding context is fully reflected, the problem of lexical ambiguity can be solved and the emotions that the sentence wants to express can be expressed as one. Bidirectional LSTM is an algorithm that is frequently used in the field of natural language processing research requiring contextual information and is also intended to be used in this study to learn context. GloVe embedding is used as the embedding layer of this research model, and the performance of this model was verified compared to the model applied with LSTM and RNN algorithms. Such a framework could contribute to various fields, including marketing, which could connect the emotions of SNS users to their desire for consumption.