The increasing reliance on online communities for healthcare information by patients and caregivers has led to the increase in the spread of misinformation, or subjective, anecdotal and inaccurate or non-specific recommendations, which, if acted on, could cause serious harm to the patients. Hence, there is an urgent need to connect users with accurate and tailored health information in a timely manner to prevent such harm. This paper proposes an innovative approach to suggesting reliable information to participants in online communities as they move through different stages in their disease or treatment. We hypothesize that patients with similar histories of disease progression or course of treatment would have similar information needs at comparable stages. Specifically, we pose the problem of predicting topic tags or keywords that describe the future information needs of users based on their profiles, traces of their online interactions within the community (past posts, replies) and the profiles and traces of online interactions of other users with similar profiles and similar traces of past interaction with the target users. The result is a variant of the collaborative information filtering or recommendation system tailored to the needs of users of online health communities. We report results of our experiments on an expert curated data set which demonstrate the superiority of the proposed approach over the state of the art baselines with respect to accurate and timely prediction of topic tags (and hence information sources of interest).

Our aim is to build autonomous agents that can solve tasks in environments like Minecraft. To do so, we used an imitation learning-based approach. We formulate our control problem as a search problem over a dataset of experts' demonstrations, where the agent copies actions from a similar demonstration trajectory of image-action pairs. We perform a proximity search over the BASALT MineRL-dataset in the latent representation of a Video PreTraining model. The agent copies the actions from the expert trajectory as long as the distance between the state representations of the agent and the selected expert trajectory from the dataset do not diverge. Then the proximity search is repeated. Our approach can effectively recover meaningful demonstration trajectories and show human-like behavior of an agent in the Minecraft environment.

我们在室外环境中自动驾驶的背景下研究了视觉和语言导航（VLN）问题。我们通过明确接地与Textual命令相对应的可通道区域来解决问题。在每个时间戳，该模型预测与中间或最终可通道区域相对应的分割掩码。我们的工作与VLN中的现有工作形成鲜明对比，VLN的现有工作将该任务置于节点选择问题，并且给定与环境相对应的离散连接图。我们不假定这种离散的地图的可用性。我们的工作朝着动作领域的连续性发展，通过视觉反馈提供了解释性，并允许在需要更精细的操作的命令上进行VLN，例如“两辆汽车之间的停车”。此外，我们提出了一种新型的元数据carla-nav，以允许有效的训练和验证。该数据集包括预录制的培训序列以及用于验证和测试的实时环境。我们提供广泛的定性和定量经验结果，以验证所提出的方法的功效。

近年来，深度学习模型已成为农业计算机愿景的标准。这样的模型通常使用最初适合更通用的非农业数据集的模型权重对农业任务进行微调。缺乏农业特定的微调可能会增加训练时间和资源的使用，并降低模型性能，从而导致数据效率的总体下降。为了克服这一限制，我们为三个不同的任务收集了广泛的现有公共数据集，标准化它们，并构建标准培训和评估管道，为我们提供了一组基准测试和预处理的模型。然后，我们使用在深度学习任务中常用的方法进行了许多实验，但在其特定领域的农业应用中未探索。我们的实验指导我们开发多种方法，以提高培训农业深度学习模型，而没有对现有管道进行大规模修改。我们的结果表明，即使是使用农业预审预告额的模型权重，或将特定的空间增强量用于数据处理管道，也可以显着提高模型性能并导致较短的收敛时间，从而节省训练资源。此外，我们发现，即使是在低质量注释中训练的模型也可以产生与高质量等效物的可比性水平，这表明注释差的数据集仍然可以用于培训，扩大当前可用数据集的池。我们的方法在整个农业深度学习中广泛适用，并具有重大数据效率提高的高潜力。