单个异常行为因人群的大小,上下文和场景而异。当检测,跟踪和认可异常行为的人时,诸如部分阻塞,模糊,大数字异常行为和摄像机观看之类的挑战发生在大规模的人群中。在本文中,我们的贡献是双重的。首先,我们介绍了一个注释和标记的大规模人群异常行为hajj数据集(hajjv2)。其次,我们提出了两种混合卷积神经网络(CNN)和随机森林(RFS)的两种方法,以检测和识别小型和大型人群视频中的时空异常行为。在小型人群视频中,对Resnet-50预训练的CNN模型进行了微调,以验证空间域中的每个帧是正常还是异常。如果观察到异常行为,则使用基于运动的个体检测方法基于角链光流的大小和方向来定位和跟踪具有异常行为的个体。大规模人群视频中使用了Kalman过滤器,以预测和跟踪随后的帧中检测到的个体。然后,将均值,方差和标准偏差统计特征计算出来并馈送到RF,以对时间域中的行为异常行为进行分类。在大规模的人群中,我们使用Yolov2对象检测技术微调Resnet-50模型,以检测空间域中行为异常的个体。
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Machine learning model development and optimisation can be a rather cumbersome and resource-intensive process. Custom models are often more difficult to build and deploy, and they require infrastructure and expertise which are often costly to acquire and maintain. Machine learning product development lifecycle must take into account the need to navigate the difficulties of developing and deploying machine learning models. evoML is an AI-powered tool that provides automated functionalities in machine learning model development, optimisation, and model code optimisation. Core functionalities of evoML include data cleaning, exploratory analysis, feature analysis and generation, model optimisation, model evaluation, model code optimisation, and model deployment. Additionally, a key feature of evoML is that it embeds code and model optimisation into the model development process, and includes multi-objective optimisation capabilities.
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ML音乐型号的出现诸如Google Magenta的Musicvae现在允许我们从其他数据集中提取和复制组成功能。这些模型允许计算作曲器参数化抽象变量,如风格和情绪。通过利用这些模型并将它们与过程算法与过去几十年来组合,可以创建一个动态歌曲,该歌曲实时组成音乐以伴随互动体验。Malakai是一种工具,可以帮助用户产生不同的技能级别创建,收听,混音并分享此类动态歌曲。使用Malakai,作曲家可以创建一个可以由侦听器互动的动态歌曲
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