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Park and An: Data Mining Research on Maehwado Painting Poetry in the Early Joseon Dynasty

Haeyoung Park and Younghoon An

Data Mining Research on Maehwado Painting Poetry in the Early Joseon Dynasty

Abstract: Data mining is a technique for extracting valuable information from vast amounts of data by analyzing statistical and mathematical operations, rules, and relationships. In this study, we employed data mining technology to analyze the data concerning the painting poetry of Maehwado (plum blossom paintings) from the early Joseon Dynasty. The data was extracted from the Hanguk Munjip Chonggan (Korean Literary Collections in Classical Chinese) in the Hanguk Gojeon Jonghap database (Korea Classics DB). Using computer informa-tion processing techniques, we carried out web scraping and classification of the painting poetry from the Hanguk Munjip Chonggan. Subsequently, we narrowed down our focus to the painting poetry specifically related to Maehwado in the early Joseon Dynasty. Based on this, refined dataset, we conducted an in-depth analysis and interpretation of the text data at the syllable corpus level. As a result, we found a direct correlation between the corpus statistics for each syllable in Maehwado painting poetry and the symbolic meaning of plum blossoms.

Keywords: Corpus , Data Mining , Maehwado , Painting Poetry , Plum Blossoms , Symbolic Meaning

1. Introduction

This study analyzed the painting poetry data of Maehwado (plum blossom paintings) from the early Joseon Dynasty extracted from the Hanguk Munjip Chonggan (Korean Literary Collections in Classical Chinese) in the Hanguk Gojeon Jonghap database (Korea Classics Database) applying computer information processing technology. The purpose is to objectively clarify the expression methods and meanings of Hansi (poems in the Chinese style) by converting them into quantitative values based on a computer program.

It is one of the primary studies on Hansi that categorizes poems by their structure. Traditional studies on Hansi have emphasized qualitative evaluation, relying primarily on the researcher's judgment. Analyzing Hansi using data mining is a more objective, and quantitative method of evaluation. While existing digital humanities research has predominantly focused on the narrative genre [1,2], research on the poetry genre within digital humanities is exceedingly rare. Lee [3,4] is the sole scholar who extensively studied Hansi using computer information processing, but there is a limitation in terms of scope. Therefore, we aim to classify various types of poetry and provide a more detailed interpretation of the language employed in the poems. This approach can potentially be expanded to encompass the entirety of Korean classical literature, facilitating deeper and more extensive research within each genre.

2. Research Methodology

2.1 Research Materials

The central focus of this study revolves around painting poetry. Painting poetry [5] constitutes a form of literary expression in which a poet encapsulates emotions or reflections concerning paintings within a condensed poetic structure. Painting poetry serves as a conduit for translating visual symbols, such as “paintings,” into the realm of social symbolic tools, namely “language.” In essence, it signifies the symbol itself, thereby culminating in the language intrinsic to painting poetry. Consequently, painting poetry facilitates our ability to apprehend and decipher the symbolic significance underlying the elements portrayed through artworks.

The principal source material underpinning the exploration of painting poetry emanates from the Hanguk Munjip Chonggan, housed within the Database of Hanguk Gojeon Beonyeokwon (Institute for the Translation of Korean Classics), colloquially referred to as the “Hanguk Gojeon Jonghap DB.” The Hanguk Gojeon Beonyeokwon spearheads a comprehensive initiative aimed at translating, digitizing, and rendering Korean classics accessible to the general populace. This data is structured in XML format, supplemented by an open application programming interface (API). The dataset is meticulously catego¬rized by attributes such as title, authorship, stylistic composition, publication year, and more. Moreover, it boasts the capability to selectively extract pertinent information by configuring search criteria through designated keywords. Building upon this framework, the painting poetry data from the early Joseon Dynasty has been meticulously extracted and subjected to analysis.

2.2 Data Mining Method

Data mining is a technique used to extract valuable information from large datasets by analyzing statistical and mathematical operations, rules, and relationships [6]. Today, this technology is employed across various major fields such as computing [7], business administration [8], and statistics [9,10]. We applied this technology to the realm of Korean classical literature studies. Initially, we selected painting poetry from the Hanguk Gojeon Jonghap DB and classified it by type. This marks the first instance of data mining applied to painting poetry. Subsequently, we narrowed our focus to the painting poetry of Maehwado in the early Joseon Dynasty. We then proceeded to analyze and interpret the textual data of Maehwado's painting poetry from the early Joseon Dynasty. This signifies the secondary data mining of phase painting poetry.

3. Result

3.1 First Data Mining: Scraping and Type Classification

In the first data mining phase, we initiated the process by sorting out Hansi from the Hanguk Munjip Chonggan within the Hanguk Gojeon Jonghap DB. We meticulously extracted and categorized\ poetry with specific keywords such as “hwa” (paint or painting), “do” (picture), “sa” (draw), “hoe” (draw), “cheop” (album), “chuk” (scroll), “jok” (hanging scroll), “byeong” (folding screen), and “muk” (ink) found in their titles (Fig. 1). Subsequently, we verified the titles and content of the selected poetry to ascertain if they were indeed inspired by paintings. This process constitutes the scraping method.

Originally, web scraping is a computer program that automatically extracts data from web pages (Fig. 2). However, the Hanguk Gojeon Jonghap DB (https://db.itkc.or.kr) already provides data in an XML format, categorized by item. Hence, researchers can extract painting poetry data using the search function as described above. We verified that there are 842 painting poetry pieces from the early Joseon Dynasty available on the Hanguk Munjip Chonggan [11].

Fig. 1.

Extracting of painting poetry of the early Joseon Dynasty.
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Fig. 2.

Scraping of painting poetry in the early Joseon Dynasty on the Hanguk Gojeon Jonghap database.
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A type-classification of painting poetry is based on the material of the paintings. This categorization is possible because the material of a painting is typically denoted by a distinct name, preceded and followed by terms such as “hwa” and “do,” which specifically refer to the painting. For instance, many titles of Maehwado painting poetry include expressions like “Hwamae (drawing a plum blossom)” or “MukMae (Inked a plum blossom).” The types of painting poetry can be further divided into higher concepts and subitems based on the material of the paintings. To illustrate, we categorized the painting poetry of Maehwado from the early Joseon Dynasty by grouping it under higher concepts, such as “Flower painting poetry,” and “Birds Beasts Plants Trees painting poetry.” Within the category of painting poetry, we narrowed our focus to the subject of research, specifically “Birds Beasts Plants Trees Flower Maehwa (plum blossom).” Among the painting poetry in the early Joseon Dynasty, there are a total of 97 pieces classified as Maehwado types. Fig. 3 illustrates the result of categorizing Maehwado painting poetry from the early Joseon Dynasty.

Fig. 3.

A type-classification of Maehwado painting poetry.
3.png
3.2 Second Data Mining: Statistics and Analysis of Syllable Corpus

Afterward, we proceeded to analyze the text data of Maehwado painting poetry from the early Joseon Dynasty, which served as the focal point of our study. The majority of Maehwado painting poetry in the early Joseon Dynasty conforms to a classical chinese verse structure, taking the form of Jeol-gu (four lines) and Bae-ryul (eight lines). Consequently, there exist four types of Hansi based on the number of words: five-word Jeol-gu, seven-word Jeol-gu, five-word Bae-ryul, and seven-word Bae-ryul. Each verse comprises a specific number of characters, forming a corpus consisting of 20 (5×4), 28 (7×4), 40 (5×8), or 56 (7×8) letters, constituting a complete poem.

To interpret a poem [12] effectively, it is essential to break it down into morphemes, which represent the smallest units of meaning. Since Hansi consists of ideograms, morphemes can be further disassembled into single-syllable units, referred to as corpus. Hansi essentially consists of five or seven words per line, and a line represents the fundamental unit of Hansi. In the text of painting poetry, o’eon (five-word) is divided into five types of corpus, ranging from one to five syllables , and chil’eon (seven-word) is divided into seven types of corpus, ranging from one to seven syllables. In essence, for each line, o’eon generates five corpus and chil’eon generates seven corpus.

At this juncture, when dealing with corpora containing more than two syllables, the order in which they are combined becomes crucial. During the interpretation of poems, the usually approach is to sequentially interpret from the front to the back, but occasionally, due to the structure of the poem, interpretation may occur from back to front. In some instances, there might be instances of empty words within the poem, wherein these words do not contribute to the overall meaning. While translating, it is essential to take note of issues like postpositional modifications or the insertion of empty. However, such factors do not significantly impact the process of creating a corpus by segmenting the lines of a poem into syllable units. Since the corpus has already been divided into one-syllable segments, counting the frequency of letters with distinct semantic values remains unaffected even if the order of combination differs. In essence, the repeated word combinations found in the upper segment unit have already been segmented into one semantic value in the lower segment unit. If there are instances where the meaning varies based on the order, these should be treated as individual words, and their frequency should be measured separately.

In the early Joseon Dynasty, the total number of Maehwado painting poetry amounts to 97, comprising a total of 2,686 Chinese characters. These characters are organized in corpus units. Figs. 4 and 5 are a set of Java program instructions designed to calculate the frequency by segmenting the original painting poetry data based on syllables. A function diagram has been implemented to determine the number of repeated corpus units for each syllable within the original painting poetry text.

Fig. 4.

Chil’eon 1-syllable (7) [1/2/3/4/5/6/7] corpus unit analysis function.
4.png

Fig. 5.

Chil’eon 2-syllable (6) [12/23/34/45/56/67] corpus unit analysis function .
5.png

Figs. 6 and 7 present results obtained by dividing the text into syllables and calculating their frequency, using a Java program. The measurements aimed to determine the number of corpus units in the original painting poetry text. The 1–5-syllable corpus data represent the combined data for both o’eon and chil’eon painting poetry, while the 6–7-syllable corpus data solely comprise chil’eon painting poetry. Notably, only the 1–3-syllable corpus data was considered valid, as all 4–7-syllable corpus data contained unique word combinations that appeared only once, rendering them meaningless for analysis. Moreover, the 3-syllable corpus data was excluded from semantic analysis, due to infrequent occurrence (less than one to three times), resulting in limited meaning for the combination of 3-syllable units. Consequently, only the word usage frequency data from 1-syllable and 2-syllable corpus units is presented.

Fig. 6.

One-syllable corpus statistics of Maehwado painting poetry.
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Fig. 7.

Two-syllable corpus statistics of Maehwado painting poetry.
7.png

First, a significant data value in the corpus statistics for Maehwado painting poetry lies in the 2-syllable corpus. Notably, certain words frequently appear in the 2-syllable corpus, including “Cha-Gun” (this gunja: 8 times), “Seo-Ho” (West Lake: 7 times), “Go-San” (Mt. Gushan: 5 times), “Go-Ya” (Miaogusheshan: 5 times), “Cheol-Seok” (iron and stone: 4 times). These terms align with the symbolic representation of plum blossoms during the early Joseon Dynasty’s Maehwado. In a previous study of Maehwado painting poetry [13], it was discovered that plum blossoms in the early Joseon Dynasty’s paintings were depicted in the form of “Seonnyeo” (fairy), “Sinryong” (god dragon), and “Gunja” (man of virtue).

Conventionally, the beautiful fairy image utilizes the literary allusions to Miaogusheshan (Mt. Miaogushe) and Luofushan (Mt. Luofu) to enhance the sense of romance. Moreover, it gracefully incorporates poetic descriptions of ice, snow, moon, and twilight to further evoke a clean and clear imagery. The dragon, with its unique form, becomes particularly prominent when depicted as gomae (old plum), accentuating its novelty as the winding branches are likened to the intricate appearance of a dragon. The representation of plum blossoms, symbolizing a man of virtue at the right time, varies depending on the political perspective. In Maehwado, the portrayal of wise ministers like Buyeol takes the form of Choolsa (government service), connecting them with the attributes of plum blossoms and plum fruit. On the other hand, Limpo residing in Gushan (Mt. Gushan), is depicted as Maecheohakja, choosing not to serve the power, a notion expressed through the concept of Cheosa. Through this analysis, it has been confirmed that the meaning of plum blossoms in the painting poetry of the early Joseon Dynasty encompasses themes of “romance and pureness,” “mysteriousness and bizarrity,” and “government service and not serving the power.”

Therefore, “Go-Ya” is used to refer to a seonnyeo, “Cha-Gun” to a Gunja, “Cheol-Seok” to a Choolsa, and “Seo-ho” and “Go-San” to Cheosa. Additionally, when describing plum blossoms, the nouns “Hyang” (scent: 38 times), “Seol” (snow: 30 times), “Wol” (moon: 24 times), and “Pung” (wind: 20 times) are employed, reinforcing the meaning of plum blossoms with adjectives like “Cheong” (clear: 21 times), “Ok” (jade: 17 times), “No” (old: 12 times), “Jeong” (upright: 8 times), and “Hon” (spirit: 8 times). Other words with high frequency include “Ten-Ji” (world: 9 times), “Il-Ji” (a branch of a tree: 7 times), “Il” (one: 24 times), “Mu-Hyang” (unscented: 7 times) and “Bul” (no: 37 times), among others. These words are used to emphasize the existence of a single thing [Ten-Ji, Il-Ji, Il] when expressing plum blossoms or to further underscore their meaning through irony using negatives [Mu-Hyang, Bu]. As a result, we can confirm that the corpus statistics for each syllable in Maehwado painting poetry are closely linked to the symbolic meaning of plum blossoms.

4. Conclusion

The more a symbol is shared, the more impactful its meaning becomes. Through data mining, a computer information processing method, we have confirmed that a series of identical words is repeated in the same type of painting poetry. The meaning implied by this corpus represents the symbol of the painting, which, in turn, symbolizes the essence of the object portrayed in the painting. This process provides us with a convincing means to analyze and derive the symbols of objects more clearly. Data mining proves to be a valuable tool not only for revealing the meaning of Maehwado painting poetry but also for exploring other types of painting poetry. Furthermore, we aim to expand this study to gain a deeper understanding of communication and meaning within literature.

Biography

Haeyoung Park
https://orcid.org/0000-0002-0161-8465

She received her M.S. and Ph.D. degrees in Korean language and literature from Kyung Hee University in 2015 and 2021, respectively. Since March 2018, she has been serving as a lecturer in the Humanitas College at Kyung Hee University, Seoul, Korea. Her current research interests encompass literary symbol communication and digital information processing.

Biography

Younghoon An
https://orcid.org/0000-0002-3012-9724

He received his M.S. and Ph.D. degrees in Korean language and literature from Kyung Hee University in 1993 and 1998, respectively. He is currently a professor in the Department of Korean Language and Literature at Kyung Hee University, Seoul, Korea. His research interests primarily revolve around modeling Korean literature information.

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