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1. 发明申请

WO2013036181A1 ASSIGNING TAGS TO MEDIA FILES 审中-公开
标题翻译：将标签标记到媒体文件
公开(公告)号：WO2013036181A1
公开(公告)日：2013-03-14
申请号：PCT/SE2011/051088
申请日：2011-09-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SÖDERBERG, Joakim , ZHONG, Che
发明人： SÖDERBERG, Joakim , ZHONG, Che
IPC分类号： G06F17/30 , H04N21/84
CPC分类号： G06F17/30038 , G06F17/3002 , G06F17/30247 , G06F17/30265 , G06F17/30817
摘要： There is described a device and method for assigning a tag to a media file associated with metadata describing features of the media file. The metadata is converted into a query feature vector associated with the media file. A weighted distance is calculated between the query vector and each of a plurality of tag feature vectors, where each tag feature vector is included in a tag instance stored in a database, each tag instance further comprising a tag and a weight vector. The weighted distance is determined by comparing each feature of the query vector with the corresponding feature in the tag feature vector to obtain an initial distance value for that feature, modifying the initial distance value by a weight for that feature obtained from the weight vector in the tag instance to obtain a comparison value for that feature, and combining the comparison values of all of the features to obtain the weighted distance. Those tag instances whose tag feature vectors have the smallest weighted distance from the query vector are selected. The user chooses one or more of the selected tags, which are then associated with the media file. The weight for each feature in the weight vectors in the tag instances selected by the tag selection unit is updated on the basis of whether or not the tag in each tag instance was chosen by the user, and the distance between the feature of the tag feature vector and the corresponding feature in the query vector.
摘要翻译：描述了用于将标签分配给与描述媒体文件的特征的元数据相关联的媒体文件的设备和方法。元数据被转换成与媒体文件相关联的查询特征向量。在查询向量与多个标签特征向量中的每一个之间计算加权距离，其中每个标签特征向量包括在存储在数据库中的标签实例中，每个标签实例还包括标签和权重向量。通过将查询向量的每个特征与标签特征向量中的相应特征进行比较以获得该特征的初始距离值来确定加权距离，通过从该权重向量中获得的该特征的权重修改初始距离值标签实例以获得该特征的比较值，并且组合所有特征的比较值以获得加权距离。选择标签特征向量与查询向量具有最小加权距离的标签实例。用户选择一个或多个所选择的标签，然后与媒体文件相关联。基于标签选择单元选择的标签实例中的权重向量中的每个特征的权重是根据用户选择的每个标签实例中的标签是否被更新，以及标签特征的特征之间的距离向量和查询向量中的相应特征。

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