为了保护热带森林生物多样性,我们需要能够可靠,便宜地和规模地检测它。通过机器学习方法从被动录制的SoundScapes检测自动化物种是对此目标的有希望的技术,但它受到大型训练数据集的必要性。在婆罗洲的热带森林中使用Soundcapes和通过转移学习创建的卷积神经网络模型(CNN),我们调查I)最低可行训练数据集规模,用于准确预测呼叫类型('Sonotypes')和II)的程度数据增强可以克服小型训练数据集的问题。我们发现甚至相对较高的样本尺寸(每个呼叫类型)导致平庸的精度,然而,无论分类学组或呼叫特征如何,数据增强都会显着提高。我们的研究结果表明,即使对于具有许多罕见物种的小型Sountscape的项目,转移学习和数据增强可以使用CNN来分类物种的发声。我们的开源方法有可能使节约计划能够通过在生物多样性的自适应管理中使用Soundscape数据来实现更有证据。
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The automated segmentation and tracking of macrophages during their migration are challenging tasks due to their dynamically changing shapes and motions. This paper proposes a new algorithm to achieve automatic cell tracking in time-lapse microscopy macrophage data. First, we design a segmentation method employing space-time filtering, local Otsu's thresholding, and the SUBSURF (subjective surface segmentation) method. Next, the partial trajectories for cells overlapping in the temporal direction are extracted in the segmented images. Finally, the extracted trajectories are linked by considering their direction of movement. The segmented images and the obtained trajectories from the proposed method are compared with those of the semi-automatic segmentation and manual tracking. The proposed tracking achieved 97.4% of accuracy for macrophage data under challenging situations, feeble fluorescent intensity, irregular shapes, and motion of macrophages. We expect that the automatically extracted trajectories of macrophages can provide pieces of evidence of how macrophages migrate depending on their polarization modes in the situation, such as during wound healing.
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According to the latest trend of artificial intelligence, AI-systems needs to clarify regarding general,specific decisions,services provided by it. Only consumer is satisfied, with explanation , for example, why any classification result is the outcome of any given time. This actually motivates us using explainable or human understandable AI for a behavioral mining scenario, where users engagement on digital platform is determined from context, such as emotion, activity, weather, etc. However, the output of AI-system is not always systematically correct, and often systematically correct, but apparently not-perfect and thereby creating confusions, such as, why the decision is given? What is the reason underneath? In this context, we first formulate the behavioral mining problem in deep convolutional neural network architecture. Eventually, we apply a recursive neural network due to the presence of time-series data from users physiological and environmental sensor-readings. Once the model is developed, explanations are presented with the advent of XAI models in front of users. This critical step involves extensive trial with users preference on explanations over conventional AI, judgement of credibility of explanation.
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Enterprise resource planning (ERP) software brings resources, data together to keep software-flow within business processes in a company. However, cloud computing's cheap, easy and quick management promise pushes business-owners for a transition from monolithic to a data-center/cloud based ERP. Since cloud-ERP development involves a cyclic process, namely planning, implementing, testing and upgrading, its adoption is realized as a deep recurrent neural network problem. Eventually, a classification algorithm based on long short term memory (LSTM) and TOPSIS is proposed to identify and rank, respectively, adoption features. Our theoretical model is validated over a reference model by articulating key players, services, architecture, functionalities. Qualitative survey is conducted among users by considering technology, innovation and resistance issues, to formulate hypotheses on key adoption factors.
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视觉定位,即相机姿势估计的问题,是应用程序和增强现实系统等应用的核心组成部分。文献中的主要方法是基于从图像中提取的局部特征来扩展到大型场景并处理复杂的照明和季节性变化。场景表示形式是与特定本地特征相关的稀疏结构云。切换到另一种功能类型需要在用于构造点云的数据库图像之间昂贵的功能匹配步骤。在这项工作中,我们基于密集的3D网格探索了一个更灵活的替代方案,该替代方案不需要在数据库图像之间匹配的功能来构建场景表示。我们表明,这种方法可以实现最新的结果。我们进一步表明,当在没有任何神经渲染阶段的渲染效果上提取功能时,即使在没有颜色或纹理的原始场景几何形状时,也可以获得令人惊讶的竞争结果。我们的结果表明,基于3D模型的密集表示是现有表示形式的有希望的替代方法,并指出了未来研究的有趣且具有挑战性的方向。
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Affine correspondences have traditionally been used to improve feature matching over wide baselines. While recent work has successfully used affine correspondences to solve various relative camera pose estimation problems, less attention has been given to their use in absolute pose estimation. We introduce the first general solution to the problem of estimating the pose of a calibrated camera given a single observation of an oriented point and an affine correspondence. The advantage of our approach (P1AC) is that it requires only a single correspondence, in comparison to the traditional point-based approach (P3P), significantly reducing the combinatorics in robust estimation. P1AC provides a general solution that removes restrictive assumptions made in prior work and is applicable to large-scale image-based localization. We propose two parameterizations of the P1AC problem and evaluate our novel solvers on synthetic data showing their numerical stability and performance under various types of noise. On standard image-based localization benchmarks we show that P1AC achieves more accurate results than the widely used P3P algorithm.
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