Unavailability of parallel corpora for training text style transfer (TST) models is a very challenging yet common scenario. Also, TST models implicitly need to preserve the content while transforming a source sentence into the target style. To tackle these problems, an intermediate representation is often constructed that is devoid of style while still preserving the meaning of the source sentence. In this work, we study the usefulness of Abstract Meaning Representation (AMR) graph as the intermediate style agnostic representation. We posit that semantic notations like AMR are a natural choice for an intermediate representation. Hence, we propose T-STAR: a model comprising of two components, text-to-AMR encoder and a AMR-to-text decoder. We propose several modeling improvements to enhance the style agnosticity of the generated AMR. To the best of our knowledge, T-STAR is the first work that uses AMR as an intermediate representation for TST. With thorough experimental evaluation we show T-STAR significantly outperforms state of the art techniques by achieving on an average 15.2% higher content preservation with negligible loss (3% approx.) in style accuracy. Through detailed human evaluation with 90,000 ratings, we also show that T-STAR has up to 50% lesser hallucinations compared to state of the art TST models.
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我们在多变量时间序列预测(MTSF)的域中制定了一个新的推理任务,称为变量子集预报(VSF),其中仅在推理过程中可用一小部分变量子集。由于长期数据丢失(例如,传感器故障)或列车 /测试之间的高 - >低资源域移动,因此在推理过程中没有变量。据我们所知,在文献中尚未研究MTSF模型在存在此类故障的情况下的稳健性。通过广泛的评估,我们首先表明,在VSF设置中,最新方法的性能显着降低。我们提出了一种非参数包装技术,该技术可以应用于任何现有的预测模型。通过在4个数据集和5个预测模型的系统实验中,我们表明我们的技术能够恢复模型的接近95 \%性能,即使仅存在15 \%的原始变量。
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We study the problem of finding elements in the intersection of an arbitrary conic variety in $\mathbb{F}^n$ with a given linear subspace (where $\mathbb{F}$ can be the real or complex field). This problem captures a rich family of algorithmic problems under different choices of the variety. The special case of the variety consisting of rank-1 matrices already has strong connections to central problems in different areas like quantum information theory and tensor decompositions. This problem is known to be NP-hard in the worst-case, even for the variety of rank-1 matrices. Surprisingly, despite these hardness results we give efficient algorithms that solve this problem for "typical" subspaces. Here, the subspace $U \subseteq \mathbb{F}^n$ is chosen generically of a certain dimension, potentially with some generic elements of the variety contained in it. Our main algorithmic result is a polynomial time algorithm that recovers all the elements of $U$ that lie in the variety, under some mild non-degeneracy assumptions on the variety. As corollaries, we obtain the following results: $\bullet$ Uniqueness results and polynomial time algorithms for generic instances of a broad class of low-rank decomposition problems that go beyond tensor decompositions. Here, we recover a decomposition of the form $\sum_{i=1}^R v_i \otimes w_i$, where the $v_i$ are elements of the given variety $X$. This implies new algorithmic results even in the special case of tensor decompositions. $\bullet$ Polynomial time algorithms for several entangled subspaces problems in quantum entanglement, including determining $r$-entanglement, complete entanglement, and genuine entanglement of a subspace. While all of these problems are NP-hard in the worst case, our algorithm solves them in polynomial time for generic subspaces of dimension up to a constant multiple of the maximum possible.
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Motivated by the increasing application of low-resolution LiDAR recently, we target the problem of low-resolution LiDAR-camera calibration in this work. The main challenges are two-fold: sparsity and noise in point clouds. To address the problem, we propose to apply depth interpolation to increase the point density and supervised contrastive learning to learn noise-resistant features. The experiments on RELLIS-3D demonstrate that our approach achieves an average mean absolute rotation/translation errors of 0.15cm/0.33\textdegree on 32-channel LiDAR point cloud data, which significantly outperforms all reference methods.
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我们考虑了由法院诉讼中的电子发现诸如诸如e-Dissoververy的申请激励的分类的多方协议。我们确定一项协议,该协议保证请求方收到所有响应文件,而发送方揭示了证明已收到所有响应文件所必需的无响应文件的最低金额。该协议可以嵌入到机器学习框架中,该框架可以实现积分的自动标签,并且由此产生的多方协议等同于标准的一方分类问题(如果一方分类问题满足自然的独立性,替代物业)。我们的正式保证专注于有正确分配文档的线性分类器的情况。
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我们为梯度下降提供了收敛分析,以解决高斯分布中不可知的问题。与研究零偏差的设置的先前工作不同,我们考虑了当relu函数的偏见非零时更具挑战性的情况。我们的主要结果确定,从随机初始化开始,从多项式迭代梯度下降输出中,具有很高的概率,与最佳relu函数的误差相比,可以实现竞争错误保证。我们还提供有限的样本保证,这些技术将其推广到高斯以外的更广泛的边际分布。
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