Abstract: A computer-implemented method includes positioning a sliding window over a string of data and calculating a hash value using a rolling hash function for data encompassed by the sliding window. The method includes determining whether the calculated hash value for the data encompassed by the sliding window matches the value of an element in a cut point candidate (CPC) array by comparing the calculated hash value to the value of a first element in the CPC array. In response to the calculated hash value being equal to the value of the first element in the CPC array, the method includes defining an index of the sliding window as the cutting point for a data block.

Abstract: A computer-implemented method, according to one embodiment, includes: sending one or more instructions to a web crawler to identify presentation videos on the internet and capture video data therefrom. In response, video data which corresponds to various presentation videos on the internet is received from the web crawler. The video data is used to define influence factors, such that different combinations of the influence factors represent different conditions of a presenter in the presentation videos. The video data is also used to define labels, where different combinations of the labels represent different conditions of one or more audience members in the presentation videos. Furthermore, structured data is generated by correlating certain presenter conditions with certain audience conditions, and the structured data is stored in memory.

Abstract: A computer-implemented method includes positioning a sliding window over a string of data and calculating a hash value using a rolling hash function for data encompassed by the sliding window. The method includes determining whether the calculated hash value for the data encompassed by the sliding window matches the value of an element in a cut point candidate (CPC) array by comparing the calculated hash value to the value of a first element in the CPC array. In response to the calculated hash value being equal to the value of the first element in the CPC array, the method includes defining an index of the sliding window as the cutting point for a data block.

Abstract: A computer-implemented method, according to one embodiment, includes: sending one or more instructions to a web crawler to identify presentation videos on the internet and capture video data therefrom. In response, video data which corresponds to various presentation videos on the internet is received from the web crawler. The video data is used to define influence factors, such that different combinations of the influence factors represent different conditions of a presenter in the presentation videos. The video data is also used to define labels, where different combinations of the labels represent different conditions of one or more audience members in the presentation videos. Furthermore, structured data is generated by correlating certain presenter conditions with certain audience conditions, and the structured data is stored in memory.