非凸AC-OPF问题的多个负载分解映射的存在对深神经网络（DNN）方案构成了根本挑战。由于训练数据集可能包含与不同负载分解映射相对应的数据点的混合物，因此DNN可能无法学习合法的映射并生成劣质解决方案。我们建议DeepOpf-al作为解决此问题的增强学习方法。这个想法是训练DNN，以学习从增强输入（即（负载，初始点））的唯一映射到由具有负载和初始点作为进气口的迭代OPF求解器生成的解决方案。然后，我们将学习的增强映射应用于求解AC-OPF问题的速度要快得多。与最近的DNN方案相比，IEEE测试案例的模拟结果表明，DeepOPF-AL可以明显地取得更好的最优性和相似的可行性和加速性能，具有相同的DNN大小却提高了训练的复杂性。

为了实现可以模仿人类智能的强大人工智能的目标，AI系统将有能力适应不断变化的场景并连续地学习新知识，而不会忘记先前获得的知识。当机器学习模型经过连续的多个任务进行连续培训时，其在以前学习的任务上的性能可能会在新见到的任务的学习过程中急剧下降。为了避免这种现象被称为灾难性的遗忘，已经提出了持续学习，也称为终身学习，并成为机器学习中最新的研究领域之一。近年来，随着量子机学习的开花，开发量子持续学习很有趣。本文着重于用于量子数据的量子模型的情况，其中计算模型和要处理的数据都是量子。梯度情节记忆方法被合并为设计一种量子连续学习方案，该方案克服了灾难性的遗忘，并实现了知识向后传递。具体而言，一系列量子状态分类任务是由差异量子分类器不断学习的，该分类器的参数通过经典的基于梯度的优化器进行了优化。当前任务的梯度被投影到最接近的梯度，避免了以前任务的损失增加，但允许减少。数值仿真结果表明，我们的方案不仅克服了灾难性的遗忘，而且还要实现知识向后转移，这意味着分类器在先前任务上的绩效得到了增强，而不是在学习新任务时受到损害。

由于固有的DNN预测误差，确保解决方案可行性是开发用于解决受约束优化问题的深度神经网络（DNN）方案的关键挑战。在本文中，我们提出了一种“预防性学习”的框架，以系统地保证DNN解决方案可行性的凸起约束和一般客观函数的问题。我们首先应用预测和重建设计，不仅保证平等约束，还可以利用它们来减少DNN预测的变量的数量。然后，作为关键方法贡献，我们系统地校准了DNN训练中使用的不等式约束，从而预测预测误差并确保所得到的解决方案仍然可行。我们表征校准量大和DNN尺寸，足以确保通用可行性。我们提出了一种新的敌对样本意识到培训算法，以改善DNN的最优性能而不牺牲可行性保证。总的来说，该框架提供了两个DNN。表征足够的DNN大小的第一个可以保证通用可行性，而来自所提出的培训算法的另一个进一步提高了最优性并同时保持DNN的通用可行性。我们应用预防性学习框架来开发Deepopf +，以解决网格运行中的基本DC最佳功率流量问题。它在确保在轻负载和重载制度中的可行性和获得一致的理想加速性能时，它可以改善现有的基于DNN的方案。仿真结果对IEEE案例-30 / 118/300测试用例显示DeepoPF +与最优性损失的最优损失和最高幅度计算加速度为100 \％$ 0.5％的可行解决方案，相比之下艺术迭代求解器。

可再生能源世代的高百分比渗透对电力系统引起了重大不确定性。它要求网格操作员更频繁地解决替代电流最佳功率流（AC-OPF）问题，以便在传输和分配网格中进行经济和可靠的操作。在本文中，我们开发了一种Deep神经网络（DNN）方法，称为DEEPOPF，用于在传统求解器使用的时间中解决AC-OPF问题。应用机器学习技术解决AC-OPF问题的关键困难在于确保获得的解决方案尊重平等和不平等的物理和操作约束。在[1]，[2]中概括了2阶段的过程，DEEPOPF首先训练DNN模型，以预测一组独立的操作变量，然后通过求解功率流方程直接计算剩余的可靠性变量。这种方法不仅保留了平衡平等的限制，而且还减少了DNN预测的变量数量，从而减少了所需的神经元和训练数据的数量。然后，DeePOPF在培训过程中采用零级梯度估计技术采用惩罚方法，以保留其余的不平等约束。作为另一个贡献，我们根据所需的近似精度来驱动调整DNN的大小的条件，该准确性测量了DNN的概括能力。它为使用DNN解决AC-OPF问题提供了理论上的理由。 IEEE 30/118/300-BU和合成2000总线测试用例的仿真结果表明，与最先进的求解器相比，DEEPOPF最多将计算时间速度高达两个数量级，费用为费用$ <$ <$ 0.1％的成本差异。

Blind image quality assessment (BIQA) remains challenging due to the diversity of distortion and image content variation, which complicate the distortion patterns crossing different scales and aggravate the difficulty of the regression problem for BIQA. However, existing BIQA methods often fail to consider multi-scale distortion patterns and image content, and little research has been done on learning strategies to make the regression model produce better performance. In this paper, we propose a simple yet effective Progressive Multi-Task Image Quality Assessment (PMT-IQA) model, which contains a multi-scale feature extraction module (MS) and a progressive multi-task learning module (PMT), to help the model learn complex distortion patterns and better optimize the regression issue to align with the law of human learning process from easy to hard. To verify the effectiveness of the proposed PMT-IQA model, we conduct experiments on four widely used public datasets, and the experimental results indicate that the performance of PMT-IQA is superior to the comparison approaches, and both MS and PMT modules improve the model's performance.

In this paper, we study the problem of knowledge-intensive text-to-SQL, in which domain knowledge is necessary to parse expert questions into SQL queries over domain-specific tables. We formalize this scenario by building a new Chinese benchmark KnowSQL consisting of domain-specific questions covering various domains. We then address this problem by presenting formulaic knowledge, rather than by annotating additional data examples. More concretely, we construct a formulaic knowledge bank as a domain knowledge base and propose a framework (ReGrouP) to leverage this formulaic knowledge during parsing. Experiments using ReGrouP demonstrate a significant 28.2% improvement overall on KnowSQL.

Temporal sentence grounding (TSG) aims to identify the temporal boundary of a specific segment from an untrimmed video by a sentence query. All existing works first utilize a sparse sampling strategy to extract a fixed number of video frames and then conduct multi-modal interactions with query sentence for reasoning. However, we argue that these methods have overlooked two indispensable issues: 1) Boundary-bias: The annotated target segment generally refers to two specific frames as corresponding start and end timestamps. The video downsampling process may lose these two frames and take the adjacent irrelevant frames as new boundaries. 2) Reasoning-bias: Such incorrect new boundary frames also lead to the reasoning bias during frame-query interaction, reducing the generalization ability of model. To alleviate above limitations, in this paper, we propose a novel Siamese Sampling and Reasoning Network (SSRN) for TSG, which introduces a siamese sampling mechanism to generate additional contextual frames to enrich and refine the new boundaries. Specifically, a reasoning strategy is developed to learn the inter-relationship among these frames and generate soft labels on boundaries for more accurate frame-query reasoning. Such mechanism is also able to supplement the absent consecutive visual semantics to the sampled sparse frames for fine-grained activity understanding. Extensive experiments demonstrate the effectiveness of SSRN on three challenging datasets.

We introduce Argoverse 2 (AV2) - a collection of three datasets for perception and forecasting research in the self-driving domain. The annotated Sensor Dataset contains 1,000 sequences of multimodal data, encompassing high-resolution imagery from seven ring cameras, and two stereo cameras in addition to lidar point clouds, and 6-DOF map-aligned pose. Sequences contain 3D cuboid annotations for 26 object categories, all of which are sufficiently-sampled to support training and evaluation of 3D perception models. The Lidar Dataset contains 20,000 sequences of unlabeled lidar point clouds and map-aligned pose. This dataset is the largest ever collection of lidar sensor data and supports self-supervised learning and the emerging task of point cloud forecasting. Finally, the Motion Forecasting Dataset contains 250,000 scenarios mined for interesting and challenging interactions between the autonomous vehicle and other actors in each local scene. Models are tasked with the prediction of future motion for "scored actors" in each scenario and are provided with track histories that capture object location, heading, velocity, and category. In all three datasets, each scenario contains its own HD Map with 3D lane and crosswalk geometry - sourced from data captured in six distinct cities. We believe these datasets will support new and existing machine learning research problems in ways that existing datasets do not. All datasets are released under the CC BY-NC-SA 4.0 license.

As an important variant of entity alignment (EA), multi-modal entity alignment (MMEA) aims to discover identical entities across different knowledge graphs (KGs) with multiple modalities like images. However, current MMEA algorithms all adopt KG-level modality fusion strategies but ignore modality differences among individual entities, hurting the robustness to potential noise involved in modalities (e.g., unidentifiable images and relations). In this paper we present MEAformer, a multi-modal entity alignment transformer approach for meta modality hybrid, to dynamically predict the mutual correlation coefficients among modalities for instance-level feature fusion. A modal-aware hard entity replay strategy is also proposed for addressing vague entity details. Extensive experimental results show that our model not only achieves SOTA performance on multiple training scenarios including supervised, unsupervised, iterative, and low resource, but also has limited parameters, optimistic speed, and good interpretability. Our code will be available soon.

Deep learning has been widely used for protein engineering. However, it is limited by the lack of sufficient experimental data to train an accurate model for predicting the functional fitness of high-order mutants. Here, we develop SESNet, a supervised deep-learning model to predict the fitness for protein mutants by leveraging both sequence and structure information, and exploiting attention mechanism. Our model integrates local evolutionary context from homologous sequences, the global evolutionary context encoding rich semantic from the universal protein sequence space and the structure information accounting for the microenvironment around each residue in a protein. We show that SESNet outperforms state-of-the-art models for predicting the sequence-function relationship on 26 deep mutational scanning datasets. More importantly, we propose a data augmentation strategy by leveraging the data from unsupervised models to pre-train our model. After that, our model can achieve strikingly high accuracy in prediction of the fitness of protein mutants, especially for the higher order variants (> 4 mutation sites), when finetuned by using only a small number of experimental mutation data (<50). The strategy proposed is of great practical value as the required experimental effort, i.e., producing a few tens of experimental mutation data on a given protein, is generally affordable by an ordinary biochemical group and can be applied on almost any protein.