Video summary

연구논문의 이해와 작성 - 02. 글쓰기 윤리 (강의 : 서울대 윤철희 교수)

Main summary

Key takeaways

Educational

Main ideas and lessons (writing ethics focused on plagiarism)

The lecture addresses why students worry about thesis writing ethics and how plagiarism connects to major research-paper misconduct concerns in Korea and elsewhere.

It frames plagiarism as a serious academic wrongdoing because it:

  • misrepresents borrowed work as one’s own,
  • distorts proper credit,
  • undermines trust among scholars,
  • damages the credibility of science through social distrust.

The lecture then explains multiple forms of plagiarism and provides practical methodology/rules to avoid them during research and thesis writing.

It also covers self-plagiarism/duplicate publication (republishing or reusing one’s own prior work excessively) and explains why this is still problematic.

Finally, it emphasizes that modern plagiarism-detection tools make overlap easier to detect, so the mindset “plagiarism is absolutely unacceptable” is stressed from the start.

What plagiarism is (definition)

Plagiarism is presented as the appropriation of someone else’s work (part or all of it) and presenting it as if it were your own.

It is described as legally wrong and academically unethical because it involves improper handling of credit.

Types of plagiarism (with detailed categories)

1) Idea plagiarism

Occurs when you use someone else’s unique thoughts or the structure/approach of their research without attribution.

Examples include:

  • using someone else’s unique ideas, research concepts, analytical framework, methods, or paper development approach without citing;
  • claiming something is “the first in the world” when the novelty claim is not actually correct (reviewers/editors are expected to verify);
  • presenting others’ research in the introduction or objectives without citing the sources in the references.

2) Text plagiarism

Occurs when another person’s written content is copied verbatim or altered only slightly.

Subtypes

  • Reproduction / verbatim copying
    • Taking another person’s sentences/words exactly as they are.
  • Patchwork plagiarism
    • Taking small pieces from multiple sources and stitching them together.
  • Paraphrasing plagiarism
    • “Rewriting” in a way that still leaves the original content too recognizable (e.g., only minor wording changes).
    • The lecture emphasizes that you must clearly state what papers/people/research teams you used, and then rewrite in genuinely original wording.
  • Broad citation
    • Citations that are so vague they don’t allow identification of which part of which work supports which claim.
    • Treated as plagiarism (not just a “harmless mistake”).

A key mechanism emphasized:

If the content overlaps almost exactly—even when rearranged—this can be considered duplication/plagiarism.

3) Data plagiarism

Occurs when data/images/results are reused improperly, including identical visuals.

Example:

  • using the same photograph/image across different journals/papers even when journal sources differ.

Rule emphasized:

  • If you use text or images—especially images—you must obtain permission and follow citation rules.

Practical instructions to avoid plagiarism (methodology)

A) Record-keeping and differentiation (during reading)

  • Maintain good records/archives of sources while reading.
  • Clearly distinguish between your own ideas and ideas you obtained from others.

B) Citing while using others’ ideas/results (including internet)

  • When using others’ writings, cite the source for the ideas and results.
  • For internet materials:
    • verify factual correctness/authenticity before using,
    • always cite properly.

C) Note-taking and rewriting practice

  • If you find writing “good,” don’t copy it directly.
  • Instead:
    • note down how it is written,
    • practice rewriting in your own words.
  • Avoid patchwork behavior (copying segments from multiple sources and piecing them together).

D) Do not translate others’ work as a shortcut

  • Do not translate other people’s writings into Korean/another language and submit as if it’s original—this is also considered plagiarism.

E) Producing original writing and improving skills

  • Improvement comes from:
    • writing extensively over a long period (not just attending lectures),
    • building confidence by repeatedly developing your own logic.
  • Aim for accurate and concise writing.

F) Accurate use of figures/graphs (permissions)

  • If you use figures/graphs from papers/books:
    • obtain permission from the original author or publisher (copyright holder).

The lecture provides an outline for permission steps:

  • identify the paper/material details (title, author, volume, page number),
  • state the purpose for intended use,
  • obtain permission from:
    • the original author (for permission to use content previously presented/published),
    • the publisher for reuse according to their process/format.
  • Permission can sometimes be free, but can also require payment.

G) Mindset for avoiding duplicate/polished unethical reuse

  • “Write so your logic/arguments come from your own thinking.”
  • Avoid the temptation to use a piece “exactly as it is” just because you liked it.

Self-plagiarism and duplicate publication (covered as separate concerns)

Definitions

  • Self-plagiarism: republishing content that overlaps significantly with your own previous work (including republishing by rewriting parts of your own writing).
  • Duplicate publication / double publication:
    • heavy duplication of text/data such that the paper lacks value as a new work.

Main types of duplicate publication (3 categories)

The lecture specifically lists:

  1. Segmented publication

    • Split one study into multiple papers so overlap is hidden.
    • Even if earlier parts look different, methods and results can reveal verbatim duplication.
    • Example: Table 2 split into Tables 4 and 5 across different papers.

  2. Appended publication

    • Publishing a similar paper by expanding things like sample size or target group without genuine new contribution.
    • Inappropriate rules mentioned:
      • if published once with 20 participants, then published again with 100 simply by increasing the number;
      • if published for elementary students, then republished for middle/high students using the same survey but only changing the age group.
    • Exception:
      • if the new study contradicts prior findings and is sufficiently logically grounded, it can be considered valuable research.

  3. Translated publication / cross-language duplication

    • Publishing essentially the same work in another language by translating it.
    • The lecture notes that past cases occurred (e.g., re-translating earlier papers to another language and publishing).
    • Treated as plagiarism even if such cases are less common today.

Role of plagiarism-detection software (why the lecture stresses strict avoidance)

The lecture highlights that detection tools can compute overlap percentages for uploaded PDFs/Word files.

Key message:

  • With advanced software, high overlap can effectively mean plagiarism (near-total overlap).

Examples of software named:

  • “Cross book” / overlap tools (with a “77%” overlap illustration),
  • “Copy Killer” type tools referenced as available domestically and internationally.

Conclusion / final takeaway (core instruction)

The central requirement is:

  • Build your thesis logic from your own arguments and reasoning, while properly citing and obtaining permissions for anything borrowed.

Speakers / sources featured

  • Professor 윤철희 (Yun Cheol-hee), Seoul National University (강의: 서울대 윤철희 교수) — main lecturer/speaker.
  • Unspecified students / reviewers/editors / fellow graduate student — referenced as examples in scenarios (no identifiable names).
  • Plagiarism-detection software tools mentioned by name/type:
    • Cross / “Cross book”
    • **Copy Killer”

Original video