Device, method, and computer program product for structuring digital-content program

A program structuring method comprising:

• extracting scene segments from a content in which a time series is defined in accordance with cutoff points that appear in a play list created for the content and that are breakpoints of a program structure of the content;
• determining a level of relevance between the scene segments based on a frequency of appearance of each of the cutoff points;
• extracting multi-level chapter divisions as a cluster of scene segments having a high level of relevance;
• and
• structuring extracted multi-level chapter divisions into a tree form.

A computer program product having a computer readable medium including programmed instructions for structuring a content, wherein the instructions, when executed by a computer, cause the computer to perform:

• collecting a play list for a content in which a time series is defined;
• storing in a first storage unit cutoff points that appear in the play list and are breakpoints of a program structure of the content, in correspondence with a frequency of appearance of each of the cutoff points;
• calculating a level of relevance between scene segments defined by the cutoff points from the frequency of appearance of each of the cutoff points;
• extracting multi-level chapter divisions based on the level of relevance;
• and
• storing in a second storage unit the extracted multi-level chapter divisions structured into a tree form.