A fundamental trade-off between the best possible outcome and resilience against Byzantine agents is established. A resilient algorithm is then crafted and shown to demonstrate near-certain convergence of the value functions of all reliable agents towards the neighborhood of the optimal value function of all reliable agents, under stipulated conditions concerning the network topology. For different actions, if the optimal Q-values exhibit sufficient separation, then our algorithm ensures that all reliable agents can learn the optimal policy.
Algorithm development is being revolutionized by the advent of quantum computing. Currently available are only noisy intermediate-scale quantum devices, a factor which unfortunately imposes several constraints on the practical implementation of quantum algorithms in circuits. Employing kernel machines, this article proposes a framework for building quantum neurons, each neuron exhibiting a unique feature space mapping. Our generalized framework, encompassing the examination of prior quantum neurons, is capable of establishing further feature mappings, resulting in improved problem-solving for real-world situations. Based on this framework, we propose a neuron that employs a tensor-product feature mapping to explore a considerably larger dimensional space. The proposed neuron's implementation utilizes a circuit with a linear count of elementary single-qubit gates, maintained at a constant depth. Employing a phase-based feature map, the preceding quantum neuron necessitates an exponentially expensive circuit design, regardless of multi-qubit gate implementation. Furthermore, the suggested neuron possesses parameters capable of altering the configuration of its activation function. The activation function shapes of all the quantum neurons are shown in this illustration. The parametrization of the proposed neuron, in contrast to the existing neuron, leads to optimal pattern fitting in the nonlinear toy classification problems highlighted here. Quantum neuron solutions' feasibility is also considered in the demonstration, using executions on a quantum simulator. We finally evaluate these kernel-based quantum neurons in the task of recognizing handwritten digits, and in this process, we also contrast the performance of quantum neurons that utilize classical activation functions. Repeated observations of the parametrization potential, realized within actual problems, support the conclusion that this work produces a quantum neuron with improved discriminatory abilities. Due to this, the generalized quantum neuron model offers the possibility of achieving practical quantum supremacy.
The absence of sufficient labels makes deep neural networks (DNNs) susceptible to overfitting, negatively impacting performance and complicating the training phase. In this vein, many semi-supervised strategies prioritize the use of unlabeled data to offset the problem of a small labeled dataset. However, the expansion of available pseudolabels puts a strain on the fixed design of conventional models, diminishing their overall effectiveness. In light of the foregoing, a deep-growing neural network with manifold constraints (DGNN-MC) is formulated. Semi-supervised learning leverages a high-quality pseudolabel pool's expansion to refine the network structure, while preserving the local structure bridging the original data and its high-dimensional counterpart. The framework, in its initial step, filters the results from the shallow network, selecting pseudo-labeled samples displaying high confidence. These high-confidence examples are then assimilated into the original training dataset to form a revised pseudo-labeled training dataset. synthetic immunity Secondly, by assessing the quantity of new training data, the network's layer depth is incrementally increased before commencing training. The culmination of this process involves obtaining new pseudo-labeled data points and deepening the network's structure until the growth cycle is concluded. Transforming the depth of multilayer networks allows for the application of this article's proposed model. The efficacy and superiority of our method, when applied to HSI classification, a representative semi-supervised problem, are demonstrably supported by the experimental results. The method mines more dependable information, maximizing its practical utility and achieving an optimal balance between the growing quantity of labeled data and the network's learning abilities.
A more accurate assessment of lesions, facilitated by automatic universal lesion segmentation (ULS) from computed tomography (CT) images, surpasses the precision of the current Response Evaluation Criteria In Solid Tumors (RECIST) guidelines, thereby reducing radiologist workload. This task, however, is hindered by the absence of a large-scale, meticulously labeled pixel-based dataset. A weakly supervised learning framework is presented in this paper, using the extensive lesion databases available within hospital Picture Archiving and Communication Systems (PACS), geared towards ULS. Unlike preceding strategies for generating pseudo-surrogate masks in fully supervised training via shallow interactive segmentation, we introduce a novel framework, RECIST-induced reliable learning (RiRL), which leverages implicit information from RECIST annotations. Crucially, we develop a new label generation approach and an on-the-fly soft label propagation strategy to overcome the pitfalls of noisy training and poor generalization. Clinically characterized by RECIST, the method of RECIST-induced geometric labeling, reliably and preliminarily propagates the label. A trimap's role in the labeling process is to divide lesion slices into three regions: foreground, background, and ambiguous sections. This enables a powerful and dependable supervision signal throughout a large region. Utilizing a knowledge-rich topological graph, on-the-fly label propagation is implemented for the precise determination and refinement of the segmentation boundary. The proposed method, as evidenced by public benchmark dataset results, demonstrates substantial superiority over the current state-of-the-art RECIST-based ULS methods. Our proposed methodology demonstrates a substantial advantage over existing leading techniques, showcasing improvements of over 20%, 15%, 14%, and 16% in Dice score when integrated with ResNet101, ResNet50, HRNet, and ResNest50 backbones, respectively.
The subject of this paper is a wireless chip for intra-cardiac monitoring systems. The analog front-end, comprised of three channels, is a key component of the design, alongside a pulse-width modulator with output frequency offset and temperature calibration, and inductive data telemetry. Resistance enhancement in the instrumentation amplifier's feedback loop leads to a pseudo-resistor with reduced non-linearity, thus generating a total harmonic distortion less than 0.1%. Furthermore, the boosting approach reinforces the system's resistance to feedback, which in turn leads to a smaller feedback capacitor and, ultimately, a decrease in the overall size. The modulator's output frequency is rendered impervious to temperature and process fluctuations through the integration of fine-tuning and coarse-tuning algorithms. With an impressive 89 effective bits, the front-end channel excels at extracting intra-cardiac signals, exhibiting input-referred noise less than 27 Vrms and consuming only 200 nW per channel. The front-end's output, encoded by an ASK-PWM modulator, powers the 1356 MHz on-chip transmitter. Utilizing a 0.18-micron standard CMOS process, the proposed System-on-Chip (SoC) consumes 45 watts of power while occupying a die size of 1125 mm².
Downstream tasks have seen a surge in interest in video-language pre-training recently, due to its strong performance. Existing methodologies, by and large, leverage modality-specific or modality-fused architectural approaches for the task of cross-modality pre-training. Vardenafil price This paper introduces the Memory-augmented Inter-Modality Bridge (MemBridge), a novel architecture distinct from preceding methods, which utilizes learned intermediate modality representations to bridge the gap between video and language representations. The transformer-based cross-modality encoder utilizes a novel interaction strategy—learnable bridge tokens—which limits the information accessible to video and language tokens to only the bridge tokens and their respective information sources. In addition, a memory bank is suggested to archive a substantial amount of modality interaction data, which facilitates adaptive bridge token generation in different circumstances, boosting the capability and reliability of the inter-modality bridge. MemBridge's pre-training process is designed to explicitly model representations for more effective inter-modality interaction. infections in IBD Comprehensive tests show that our approach's performance is competitive with previous methods on several downstream tasks, including video-text retrieval, video captioning, and video question answering, over multiple datasets, signifying the efficacy of the proposed methodology. The code for MemBridge is situated on GitHub, specifically at https://github.com/jahhaoyang/MemBridge.
From a neurological perspective, filter pruning involves a process of forgetting and subsequently recalling information. Common strategies, initially, omit data deemed less relevant from an unstable base model, aiming for minimal compromise in performance. Still, the model's retention of information related to unsaturated bases restricts the simplified model's capabilities, resulting in suboptimal performance metrics. Remembering this detail initially is imperative; otherwise, data loss is unavoidable and unrecoverable. This design presents the Remembering Enhancement and Entropy-based Asymptotic Forgetting (REAF) approach for filter pruning, a novel technique. Guided by robustness theory, we initially amplified memory retention by over-parameterizing the baseline with fusible compensatory convolutions, thereby disengaging the pruned model from the baseline's limitations, thus preserving inference efficiency. Original and compensatory filters' interrelationship mandates a collaborative pruning principle based on mutual understanding.