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Fusing with context: A Bayesian approach to combining descriptive attributes

机译:与上下文融合:一种结合描述属性的贝叶斯方法

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For identity related problems, descriptive attributes can take the form of any information that helps represent an individual, including age data, describable visual attributes, and contextual data. With a rich set of descriptive attributes, it is possible to enhance the base matching accuracy of a traditional face identification system through intelligent score weighting. If we can factor any attribute differences between people into our match score calculation, we can deemphasize incorrect results, and ideally lift the correct matching record to a higher rank position. Naturally, the presence of all descriptive attributes during a match instance cannot be expected, especially when considering non-biometric context. Thus, in this paper, we examine the application of Bayesian Attribute Networks to combine descriptive attributes and produce accurate weighting factors to apply to match scores from face recognition systems based on incomplete observations made at match time. We also examine the pragmatic concerns of attribute network creation, and introduce a Noisy-OR formulation for streamlined truth value assignment and more accurate weighting. Experimental results show that incorporating descriptive attributes into the matching process significantly enhances face identification over the baseline by up to 32.8%.
机译:对于身份相关问题,描述性属性可以采用任何有助于表示个人的信息的形式,包括年龄数据,可描述的视觉属性和上下文数据。通过丰富的描述性属性集,可以通过智能分数加权增强传统面部识别系统的基础匹配精度。如果我们可以考虑人与人之间的任何属性差异进入匹配分数计算,我们可以深入了解不正确的结果,并且理想地将正确的匹配记录抬到更高的等级位置。当然,在考虑非生物识别上下文时,不能预期匹配实例期间所有描述性属性的存在。因此,在本文中,我们检查贝叶斯属性网络的应用组合描述性属性,并产生准确的加权因素,以应用于基于在匹配时间的不完整观察的面部识别系统匹配得分。我们还研究了属性网络创建的语用问题,并为简化真理值分配和更准确的加权引入嘈杂或制定。实验结果表明,将描述性属性纳入匹配过程,显着提高了基线的面部鉴定高达32.8%。

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