最近的多目标跟踪（MOT）系统利用高精度的对象探测器;然而，培训这种探测器需要大量标记的数据。虽然这种数据广泛适用于人类和车辆，但其他动物物种显着稀缺。我们目前稳健的置信跟踪（RCT），一种算法，旨在保持鲁棒性能，即使检测质量差。与丢弃检测置信信息的先前方法相比，RCT采用基本上不同的方法，依赖于精确的检测置信度值来初始化曲目，扩展轨道和滤波器轨道。特别地，RCT能够通过有效地使用低置信度检测（以及单个物体跟踪器）来最小化身份切换，以保持对象的连续轨道。为了评估在存在不可靠的检测中的跟踪器，我们提出了一个挑战的现实世界水下鱼跟踪数据集，Fishtrac。在对FISHTRAC以及UA-DETRAC数据集的评估中，我们发现RCT在提供不完美的检测时优于其他算法，包括最先进的深单和多目标跟踪器以及更经典的方法。具体而言，RCT具有跨越方法的最佳平均热量，可以成功返回所有序列的结果，并且具有比其他方法更少的身份交换机。
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Summarizing novel chapters is a difficult task due to the input length and the fact that sentences that appear in the desired summaries draw content from multiple places throughout the chapter. We present a pipelined extractive-abstractive approach where the extractive step filters the content that is passed to the abstractive component. Extremely lengthy input also results in a highly skewed dataset towards negative instances for extractive summarization; we thus adopt a margin ranking loss for extraction to encourage separation between positive and negative examples. Our extraction component operates at the constituent level; our approach to this problem enriches the text with spinal tree information which provides syntactic context (in the form of constituents) to the extraction model. We show an improvement of 3.71 Rouge-1 points over best results reported in prior work on an existing novel chapter dataset.
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最近的工作发现，具有大量不同任务的多任务培训可以统一地改善看不见的目标任务的下游表现。相反，有关任务转移性的文献已经确定，中间任务的选择会严重影响下游任务绩效。在这项工作中，我们旨在解散多任务表示学习中任务的规模和相关性的影响。我们发现，平均而言，就任务数量而言，增加了多任务学习的规模，实际上比较小的多任务设置会导致更好的学习表示。但是，如果提前知道目标任务，那么对一组相关任务的训练就以降低的计算成本为大规模的多任务培训具有竞争力。
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State-of-the-art named entity recognition systems rely heavily on hand-crafted features and domain-specific knowledge in order to learn effectively from the small, supervised training corpora that are available. In this paper, we introduce two new neural architectures-one based on bidirectional LSTMs and conditional random fields, and the other that constructs and labels segments using a transition-based approach inspired by shift-reduce parsers. Our models rely on two sources of information about words: character-based word representations learned from the supervised corpus and unsupervised word representations learned from unannotated corpora. Our models obtain state-of-the-art performance in NER in four languages without resorting to any language-specific knowledge or resources such as gazetteers. 1
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