Proactive Defense Against Propaganda Strategies by Malicious Cut-and-Paste Editing

抄録

In official promotional videos and media press, the malicious cut-out editing of content to misrepresent the speaker's intended meaning has long been recognized as a problem of misinformation/ disinformation. This issue of selective cut-out editing has gained increasing attention, particularly in the context of the growing need for fact-checking mechanisms. Consequently, there is a strong demand for technical approaches to counteract propaganda strategies that exploit partial multimedia content extraction. However, cut-out editing is also an essential technique for compressing lengthy content into highlights or summaries, making outright regulation of such actions impractical. This study proposes a framework that applies cut-and-paste editing to official video releases, permitting clipping some segments and concatenating them while preventing malicious edits without undermining editorial discretion. By employing semantic analysis to identify potentially exploitable segments and their contextual or meaning-based relationships, the approach restricts intentional misrepresentative cut-and-paste editing. The resulting restricted version is then published as the original content, offering a defensive strategy against such manipulations.