Keke AI竞赛介绍了游戏Baba的人造代理竞赛是您 - 像索托班一样的益智游戏,玩家可以创建影响游戏机制的规则。更改规则可能会导致可能是解决方案空间的一部分的其余级别的暂时或永久效应。这些动态规则的性质和游戏的确定性方面为AI构成了一个挑战,即适应各种机械组合以解决一个水平。本文介绍了用于对提交代理进行排名的框架和评估指标,以及样本搜索剂的基线结果。
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这项工作扩展了遗传指纹欺骗的先前进步,并引入了多样性和新颖的大师。该系统使用质量多样性进化算法来生成人造印刷的字典,重点是增加数据集对用户的覆盖范围。多样性大师图的重点是生成与以前发现的印刷品未涵盖的用户匹配的解决方案印刷品,而新颖的主版印刷明确地搜索了与以前的印刷品相比,在用户空间中更多的印刷品。我们的多印刷搜索方法在覆盖范围和概括方面都优于奇异的深层印刷,同时保持指纹图像输出的质量。
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本文介绍了Aesthetic Bot的实现,这是一个自动化的Twitter帐户,该帐户发布了用户制造或从进化系统生成的小型游戏地图的图像。然后,该机器人提示用户通过图像线程中发布的民意调查进行投票,以获取最令人愉悦的地图。这创建了一个评级系统,该系统允许以无缝集成到用户定期更新的Twitter内容fef中的方式直接与机器人进行交互。在每次投票回合结束时,该机器人从每张地图的投票分布中学习,以模仿设计和视觉美学的用户偏好,以生成将赢得未来投票配对的地图。我们讨论了自机器人生成游戏地图和参与的Twitter用户发布以来发生的持续结果和新兴行为。
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我们研究了如何根据PlayTraces有效预测游戏角色。可以通过计算玩家与游戏行为的生成模型(所谓的程序角色)之间的动作协议比率来计算游戏角色。但这在计算上很昂贵,并假设很容易获得适当的程序性格。我们提出了两种用于估计玩家角色的方法,一种是使用定期监督的学习和启动游戏机制的汇总度量的方法,另一种是基于序列学习的序列学习的另一种方法。尽管这两种方法在预测与程序角色一致定义的游戏角色时都具有很高的精度,但它们完全无法预测玩家使用问卷的玩家本身定义的游戏风格。这个有趣的结果突出了使用计算方法定义游戏角色的价值。
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本文介绍了一种全自动的机械照明方法,以实现一般视频游戏水平的生成。使用受约束的MAP-ELITE算法和GVG-AI框架,该系统生成了最简单的基于图块的级别,该级别包含特定的游戏机制集并满足可玩性约束。我们将这种方法应用于GVG-AI的$ 4 $不同游戏的机械空间:Zelda,Solarfox,Plants和eartortals。
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The recent increase in public and academic interest in preserving biodiversity has led to the growth of the field of conservation technology. This field involves designing and constructing tools that utilize technology to aid in the conservation of wildlife. In this article, we will use case studies to demonstrate the importance of designing conservation tools with human-wildlife interaction in mind and provide a framework for creating successful tools. These case studies include a range of complexities, from simple cat collars to machine learning and game theory methodologies. Our goal is to introduce and inform current and future researchers in the field of conservation technology and provide references for educating the next generation of conservation technologists. Conservation technology not only has the potential to benefit biodiversity but also has broader impacts on fields such as sustainability and environmental protection. By using innovative technologies to address conservation challenges, we can find more effective and efficient solutions to protect and preserve our planet's resources.
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We present the interpretable meta neural ordinary differential equation (iMODE) method to rapidly learn generalizable (i.e., not parameter-specific) dynamics from trajectories of multiple dynamical systems that vary in their physical parameters. The iMODE method learns meta-knowledge, the functional variations of the force field of dynamical system instances without knowing the physical parameters, by adopting a bi-level optimization framework: an outer level capturing the common force field form among studied dynamical system instances and an inner level adapting to individual system instances. A priori physical knowledge can be conveniently embedded in the neural network architecture as inductive bias, such as conservative force field and Euclidean symmetry. With the learned meta-knowledge, iMODE can model an unseen system within seconds, and inversely reveal knowledge on the physical parameters of a system, or as a Neural Gauge to "measure" the physical parameters of an unseen system with observed trajectories. We test the validity of the iMODE method on bistable, double pendulum, Van der Pol, Slinky, and reaction-diffusion systems.
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While the brain connectivity network can inform the understanding and diagnosis of developmental dyslexia, its cause-effect relationships have not yet enough been examined. Employing electroencephalography signals and band-limited white noise stimulus at 4.8 Hz (prosodic-syllabic frequency), we measure the phase Granger causalities among channels to identify differences between dyslexic learners and controls, thereby proposing a method to calculate directional connectivity. As causal relationships run in both directions, we explore three scenarios, namely channels' activity as sources, as sinks, and in total. Our proposed method can be used for both classification and exploratory analysis. In all scenarios, we find confirmation of the established right-lateralized Theta sampling network anomaly, in line with the temporal sampling framework's assumption of oscillatory differences in the Theta and Gamma bands. Further, we show that this anomaly primarily occurs in the causal relationships of channels acting as sinks, where it is significantly more pronounced than when only total activity is observed. In the sink scenario, our classifier obtains 0.84 and 0.88 accuracy and 0.87 and 0.93 AUC for the Theta and Gamma bands, respectively.
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Variational autoencoders model high-dimensional data by positing low-dimensional latent variables that are mapped through a flexible distribution parametrized by a neural network. Unfortunately, variational autoencoders often suffer from posterior collapse: the posterior of the latent variables is equal to its prior, rendering the variational autoencoder useless as a means to produce meaningful representations. Existing approaches to posterior collapse often attribute it to the use of neural networks or optimization issues due to variational approximation. In this paper, we consider posterior collapse as a problem of latent variable non-identifiability. We prove that the posterior collapses if and only if the latent variables are non-identifiable in the generative model. This fact implies that posterior collapse is not a phenomenon specific to the use of flexible distributions or approximate inference. Rather, it can occur in classical probabilistic models even with exact inference, which we also demonstrate. Based on these results, we propose a class of latent-identifiable variational autoencoders, deep generative models which enforce identifiability without sacrificing flexibility. This model class resolves the problem of latent variable non-identifiability by leveraging bijective Brenier maps and parameterizing them with input convex neural networks, without special variational inference objectives or optimization tricks. Across synthetic and real datasets, latent-identifiable variational autoencoders outperform existing methods in mitigating posterior collapse and providing meaningful representations of the data.
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There are multiple scales of abstraction from which we can describe the same image, depending on whether we are focusing on fine-grained details or a more global attribute of the image. In brain mapping, learning to automatically parse images to build representations of both small-scale features (e.g., the presence of cells or blood vessels) and global properties of an image (e.g., which brain region the image comes from) is a crucial and open challenge. However, most existing datasets and benchmarks for neuroanatomy consider only a single downstream task at a time. To bridge this gap, we introduce a new dataset, annotations, and multiple downstream tasks that provide diverse ways to readout information about brain structure and architecture from the same image. Our multi-task neuroimaging benchmark (MTNeuro) is built on volumetric, micrometer-resolution X-ray microtomography images spanning a large thalamocortical section of mouse brain, encompassing multiple cortical and subcortical regions. We generated a number of different prediction challenges and evaluated several supervised and self-supervised models for brain-region prediction and pixel-level semantic segmentation of microstructures. Our experiments not only highlight the rich heterogeneity of this dataset, but also provide insights into how self-supervised approaches can be used to learn representations that capture multiple attributes of a single image and perform well on a variety of downstream tasks. Datasets, code, and pre-trained baseline models are provided at: https://mtneuro.github.io/ .
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