1. A system for saving digital content classified by person-based clustering, comprising: a database located on a non-transitory computer readable medium to save a plurality of digital content classified by person-based clustering; a data structure generation unit located on the non-transitory computer readable medium to generate a data structure including a plurality of nodes using the plurality of digital content; a face recognition unit located on the non-transitory computer readable medium to extract a face descriptor of new digital content to be saved in the database; a cluster classification unit located on the non-transitory computer readable medium to classify the new digital content and the plurality of digital content by the person-based clustering using the extracted face descriptor; and a data structure update unit located on the non-transitory computer readable medium to update the data structure according to the classification.
1. A system for saving digital content classified by person-based clustering, comprising: a database located on a non-transitory computer readable medium to save a plurality of digital content classified by person-based clustering; a data structure generation unit located on the non-transitory computer readable medium to generate a data structure including a plurality of nodes using the plurality of digital content; a face recognition unit located on the non-transitory computer readable medium to extract a face descriptor of new digital content to be saved in the database; a cluster classification unit located on the non-transitory computer readable medium to classify the new digital content and the plurality of digital content by the person-based clustering using the extracted face descriptor; and a data structure update unit located on the non-transitory computer readable medium to update the data structure according to the classification. 6. The system of claim 1 , wherein the data structure is a two-dimensional linked list data structure that comprises person nodes linked together by persons and face nodes linked to the person nodes to save face information of the digital content that is determined to be the same face.