Python venv

python -m venv venv
source venv/bin/activate

3494. Find the Minimum Amount of Time to Brew Potions

You are given two integer arrays, skill and mana, of length n and m, respectively. In a laboratory, n wizards must brew m potions in order. Each potion has a mana capacity mana[j] and must pass through all the wizards sequentially to be brewed properly. The time taken by the ith wizard on the jth potion is timeij = skill[i] * mana[j]. Since the brewing process is delicate, a potion must be passed to the next wizard immediately after the current wizard completes their work. This means the timing must be synchronized so that each wizard begins working on a potion exactly when it arrives. ​ Return the minimum amount of time required for the potions to be brewed properly.
/**
 * @param {number[]} skill
 * @param {number[]} mana
 * @return {number}
 */
var minTime = function(skill, mana) {
    let m = mana.length;       // Number of potions
    let n = skill.length;      // Number of wizards

    // done[i] represents the time when wizard i is ready to start the next potion
    // We use n+1 to simplify indexing (done[n] will hold the final result)
    let done = new Array(n + 1).fill(0);

    // Loop through each potion in order
    for (let j = 0; j < m; j++) {

IOS

//after clonning backend ios project:

swift package resolve

AI Visibility Booster Code snippet - ChatGPT, AEO + LLMS! GEO Chat GPT SEO

https://www.youtube.com/watch?v=rmgudGV7U6Y You can't rely on SEO and keywords to stay current in the ever-evolving world of AI Engines like ChatGPT, Perplexity, Claude, Grok, Gemini, and more. You have to help your websites to get discovered by those engines with AEO - Answer Engine Optimization. My FREE Tool will boost your SEO and AEO, and give you control over the LLMS, the Robots, and the Sitemaps. You need this! https://learn.websquadron.co.uk/codes/#aeo-ai-visibility-booster
/**
 * AEO AI Visibility Booster - from Imran Siddiq - https://learn.websquadron.co.uk
 */

if ( ! defined('ABSPATH') ) exit;

class AIV_Clarity_Ultra {
    const OPTION = 'aiv_ultra_settings';
    const NONCE  = 'aiv_ultra_nonce';

public function __construct() {
    // 1) Disable WordPress core sitemaps entirely (/wp-sitemap.xml and friends)
    add_filter('wp_sitemaps_enabled', '__return_false');

    // 2) Kill canonical redirects for our virtual endpoints so WP (or plugins)
 

TLPNN-Basketball-Monitoring

# TLPNN-Basketball-Monitoring A **neural network optimization strategy** guided by a **Training Load Perception Mechanism (TLPM)** for **basketball performance monitoring**. This repository provides a reference implementation of the framework presented in *A neural network optimization strategy guided by a training load perception mechanism for basketball monitoring* (authors: Yuxiang He, Xiaotong Wang, Xiaoyu Ge, Jingfei Wang, Libin Wang)&#8203;:contentReference[oaicite:1]{index=1}. --- ## πŸ“Œ Overview Basketball is a high-intensity sport requiring **real-time monitoring** of training load, performance, and fatigue to enhance performance and prevent injuries. Traditional methods often lack adaptability and scalability. This project introduces an **integrated approach** combining domain knowledge and deep learning to dynamically adapt to **variable training loads**. ### Core Contributions: 1. **Training Load Perception Neural Network (TLPNN)** - Captures **spatial and temporal dependencies** in multimodal basketball monitoring data. - Integrates convolutional, attention, and recurrent structures for efficient feature extraction&#8203;:contentReference[oaicite:2]{index=2}. 2. **Training Load Perception Mechanism (TLPM)** - Dynamically adjusts optimization via **adaptive gradient modulation**. - Uses **domain-specific regularization** to ensure basketball-specific interpretability. - Provides **iterative adaptation** across epochs to align with workload fluctuations (see *Figures 3–4, pp. 6–7*). 3. **Load-Guided Optimization Strategy (LGOS)** - Enhances decision-making by aligning network updates with workload perception. - Improves robustness, scalability, and efficiency compared to baselines. --- ## πŸ”¬ Model Architecture The **TLPNN** architecture has three stages (see *Figure 1, page 5*): 1. **Feature Extraction** - Patch embedding + shallow convolution (multi-scale). - Multimodal encoders with Inception-style depthwise convolutions (*Figure 2, page 6*). 2. **Feature Fusion** - Multi-head attention + cross-attention for integrating multimodal signals. 3. **Feature Reconstruction** - Upsampling + refinement modules to output predictions aligned with player workload. The **TLPM** complements TLPNN by: - Computing a **dynamic load evaluation function** (`L_load`) combining task loss + input complexity&#8203;:contentReference[oaicite:3]{index=3}. - Scaling gradients via exponential modulation (`Ξ³ = exp(-Ξ» * L_load)`). - Iteratively refining weights using **band attention blocks** (*Figure 3, page 7*). --- ## πŸ“Š Results The method was tested on multiple datasets: - **Basketball Player Training Load Dataset** - **Neural Network Optimization Parameters Dataset** - **Athlete Performance Perception Dataset** - **Sports Monitoring Sensor Data Collection**&#8203;:contentReference[oaicite:4]{index=4} **Performance (Tables 1–2, page 10):** - Outperforms ResNet, ViT, I3D, DenseNet, MobileNet, and BLIP. - Achieved **up to 90.8% Accuracy** and high AUC across datasets. **Ablation Studies (Tables 3–4, page 10):** - Removing the **Multimodal Encoder** reduced accuracy by ~8%. - Removing the **Graphical Propagation Layer** reduced accuracy by ~6–7%. - Removing **Task-Specific Optimization** reduced accuracy by ~4–5%. --- ## βš™οΈ Experimental Setup - **Hardware**: NVIDIA A100 GPUs (40 GB)&#8203;:contentReference[oaicite:5]{index=5}. - **Optimizer**: Adam, LR=0.001 (decayed 0.1 every 20 epochs). - **Batch size**: 64, input resolution: 224Γ—224. - **Regularization**: Weight decay 0.0001, gradient clipping (5.0). - **Data Augmentation**: Random cropping, flipping, jittering, normalization, MixUp, CutMix. - **Training**: 100 epochs, early stopping, checkpoints saved. --- ## πŸš€ Quickstart ```python import torch from model import TLPNNModel # Setup model = TLPNNModel(input_dims={"video": 512, "sensor": 128}, latent_dim=256) # Example batch inputs = { "video": torch.randn(4, 512), "sensor": torch.randn(4, 128), } labels = torch.randint(0, 2, (4,)).float() # Forward pass scores = model(inputs) print("Scores:", scores)
```python
# model.py
# Training Load Perception Neural Network (TLPNN)
# Training Load Perception Mechanism (TLPM)
# Inspired by He et al. (2023), IEEE Access

import torch
import torch.nn as nn
import torch.nn.functional as F

# -----------------------
# Multimodal Encoders
# -----------------------
class ModalityEncoder(nn.Module):
    """Encoder for each modality (video, sensor, etc.)"""
    def __init__(self, in_dim, latent_dim):
        super().__init__()
        self.fc = 

AMAN-AMAS-SpecialEdu

# AMAN-AMAS-SpecialEdu A **personalized learning resource matching framework** for **special education scenarios**, driven by multimodal attention mechanisms. This repository provides a reference implementation of the methods described in *Personalized learning resource matching method driven by multimodal attention mechanism for special education scenarios* (authors: Yina Hao, Man Zhao, Yueping Qiao)&#8203;:contentReference[oaicite:1]{index=1}. --- ## 🌍 Overview Special education requires adaptive, inclusive solutions that can align diverse learner profiles with appropriate resources. Traditional rule-based systems often fail due to rigidity and lack of scalability. This project leverages **deep learning and multimodal attention** to address these challenges: - **Adaptive Multimodal Attention Network (AMAN)** Dynamically integrates **text, audio, and visual** features using attention layers, transformers, RNNs, and convolutional blocks. Robust even under **missing modality** conditions&#8203;:contentReference[oaicite:2]{index=2}. - **Adaptive Multimodal Attention Strategy (AMAS)** A higher-level mechanism to **refine attention weights iteratively** based on learner feedback and interaction, ensuring personalization evolves with student progress&#8203;:contentReference[oaicite:3]{index=3}. Together, AMAN + AMAS provide an intelligent system for **resource allocation, inclusivity, and improved educational outcomes**. --- ## 🧩 Architecture - **Multimodal Encoder** (see *Figure 2, page 7* of the paper): Combines residual blocks, gated MLPs, recurrent layers, and temporal convolution for structural + sequential feature handling&#8203;:contentReference[oaicite:4]{index=4}. - **Attention Layers**: Assign importance weights to modalities dynamically. Learners with hearing/visual impairments can rely more on the most relevant data streams. - **Graphical Propagation Layer**: Extends generalization by modeling dependencies across learners/resources. - **Adaptive Learning Module**: Guides optimization with dynamic learning rates for **stable convergence**. - **Feedback Mechanism**: Learner behavior adjusts attention weights in real-time, making the model more adaptive&#8203;:contentReference[oaicite:5]{index=5}. --- ## πŸ“Š Results Experiments used multiple datasets, including the **Special Education Multimodal Interaction Dataset** and **Personalized Learning Resource Allocation Dataset**&#8203;:contentReference[oaicite:6]{index=6}. - Tables 1–2 (*page 10*): Our method achieves **Accuracy up to ~91%** and consistently outperforms **ResNet, ViT, I3D, DenseNet, MobileNet, BLIP** across accuracy, precision, recall, and AUC. - Tables 3–4 (*pages 10–11*): Ablation studies confirm the importance of **Multimodal Encoder, Graphical Propagation, and Adaptive Learning mechanisms**. --- ## πŸš€ Quickstart ```python import torch from model import AMANModel # Setup model = AMANModel( num_users=500, num_resources=2000, input_dims={"text": 256, "audio": 128, "visual": 512}, latent_dim=128 ) # Example batch user_ids = torch.randint(0, 500, (4,)) resource_ids = torch.randint(0, 2000, (4,)) inputs = { "text": torch.randn(4, 256), "audio": torch.randn(4, 128), "visual": torch.randn(4, 512), } # Forward pass scores = model(user_ids, resource_ids, inputs) print("Scores:", scores)
```python
# model.py
# Adaptive Multimodal Attention Network (AMAN)
# Adaptive Multimodal Attention Strategy (AMAS)
# Inspired by Hao, Zhao, Qiao (2023) IEEE Access

import torch
import torch.nn as nn
import torch.nn.functional as F


# -----------------------
# Modality-specific Encoders
# -----------------------
class ModalityEncoder(nn.Module):
    """Simple encoder for each modality (text, audio, visual)."""
    def __init__(self, in_dim, latent_dim):
        super().__init_

SensorFusion-SportsHealth

# SensorFusion-SportsHealth An **adaptive sports health personality assessment and feedback model** powered by **multi-scale sensor fusion** and **dynamic feedback mechanisms**. This repository provides a reference implementation of the architecture described in the paper *A sports health personality assessment and indicator dynamic feedback model driven by multi-scale sensor fusion mechanism* (authors: Hui Wang, Wanxin Du). :contentReference[oaicite:1]{index=1} --- ## πŸ” Overview Athletic performance and well-being require accurate, real-time assessment of both **physiological** and **psychological** indicators. Traditional methods often rely on limited, static data sources. This project introduces a **multi-scale fusion-based approach** that integrates diverse wearable sensor data streams and provides **dynamic, personalized feedback**. --- ## 🧩 Core Components 1. **Multi-Scale Sensor Fusion Model (MS-SFM)** - Fuses multi-resolution data (e.g., heart rate, temperature, motion). - Preserves both **macro-level trends** and **micro-level variations**. - Incorporates a **graphical propagation layer** for dynamic updates. - Employs **adaptive learning** for continuous refinement. *(See Figure 1 in the paper for schematic.)* 2. **Dynamic Feedback Mechanism (DFM)** - Real-time feedback loop with **weighted aggregation** of sensor signals. - Uses **Bayesian inference** to manage uncertainty. - Reinforcement learning optimizes recommendations and interventions. *(See Figure 3 in the paper for feedback framework.)* 3. **Personality Assessment Integration** - Captures psychological traits such as motivation, resilience, and stress response. - Enhances interpretability of health recommendations. --- ## πŸ“Š Experimental Validation The model was evaluated across multiple datasets: - **Athlete Health Monitoring Dataset** – physiological/performance metrics. - **Multi-Sensor Fusion Sports Dataset** – accelerometer, gyroscope, GPS, etc. - **Dynamic Feedback Sports Assessment Dataset** – video, biometrics, performance metrics. - **Personality and Performance Indicators Dataset** – psychological + physical measures. :contentReference[oaicite:2]{index=2} **Results (Tables 1–4, pp. 10 of paper):** - Outperforms ResNet, ViT, I3D, DenseNet, MobileNet, and BLIP baselines. - Achieved **Accuracy up to ~91%** and strong gains in **Recall, Precision, and AUC**. - Ablation studies confirm the importance of the **Multimodal Encoder, Graph Propagation, and Adaptive Learning modules**. --- ## βš™οΈ Implementation Notes - **Training setup**: - Pretrained on ImageNet. - Optimized with Adam, LR=0.001 (decay schedule), dropout=0.5, weight decay=0.0005. - Hardware: NVIDIA Tesla V100 GPUs (32 GB). :contentReference[oaicite:3]{index=3} - **Evaluation metrics**: Precision, Recall, Accuracy, F1, AUC. --- ## πŸš€ Quickstart ```python import torch from model import SensorFusionModel # Initialize model = SensorFusionModel( num_users=1000, num_items=5000, latent_dim=64, input_dims={"heart_rate": 64, "motion": 128, "temp": 16} ) # Dummy batch inputs = { "heart_rate": torch.randn(4, 64), "motion": torch.randn(4, 128), "temp": torch.randn(4, 16), } user_ids = torch.randint(0, 1000, (4,)) item_ids = torch.randint(0, 5000, (4,)) # Forward score = model(user_ids=user_ids, item_ids=item_ids, sensor_inputs=inputs) print("Prediction:", score)
```python
# model.py
# Reference skeleton for SensorFusion-SportsHealth
# Inspired by Hui Wang & Wanxin Du (2023), IEEE Access

import torch
import torch.nn as nn
import torch.nn.functional as F

# -----------------------
# Multimodal Encoders
# -----------------------

class SensorEncoder(nn.Module):
    """Encodes a single sensor modality."""
    def __init__(self, in_dim, latent_dim):
        super().__init__()
        self.fc = nn.Sequential(
            nn.Linear(in_dim, l

HarmonyNet-KG-MusicEdu

# HarmonyNet-KG-MusicEdu A **knowledge-graph–guided** traditional music teaching platform that integrates **multimodal recommendation** and **semantic reasoning**. This repository provides a reference implementation of **HarmonyNet**, a model that blends collaborative filtering with content/graph signals to generate context-aware, interpretable recommendations for music learning. > Based on the paper: *A knowledge graph-guided traditional music teaching platform integrating multimodal recommendation and semantic reasoning mechanisms* (authors: Mingxing Zhao, Tianhong Zhao, Liang Qiao). :contentReference[oaicite:3]{index=3} --- ## ✨ Key ideas - **HarmonyNet (Model)** A unified recommender that fuses: - **Collaborative Filtering (CF)** via matrix factorization for user–item interactions, - **Content-based signals** from **multimodal encoders** (audio, text, image/visual), - **Knowledge-graph features** with simple graph propagation, - **Lightweight logical/semantic reasoning** (rule-style) for interpretability. :contentReference[oaicite:4]{index=4} - **Harmonious Integration Strategy (Training/Flow)** A strategy to align multimodal features and reasoning with a feedback loop that keeps the KG up to date with user behavior. (See the model/strategy schematics analogous to the paper’s figuresβ€”e.g., the HarmonyNet and Multimodal Encoder diagrams.) :contentReference[oaicite:5]{index=5} --- ## πŸ“ Architecture at a glance - **Multimodal Encoder**: linear MLP projections for audio/text/visual into a shared latent space, refined via a small Transformer encoder (cross-modal attention). - **Graph Module**: simple message passing over item nodes to incorporate KG context (e.g., composers, genres, instruments). - **CF Head**: classic user/item embeddings (matrix factorization). - **Fusion Head**: learns to balance CF and content/graph signals; optional rule-based score for semantic reasoning. :contentReference[oaicite:6]{index=6} --- ## 🧩 What this repo contains - `model.py`: A clean PyTorch reference with: - `MultimodalEncoder` - `GraphPropagation` (lightweight message passing) - `MatrixFactorizationCF` - `HarmonyNet` (ties it all together with scoring weights `alpha`, `beta`, `gamma`) - A tiny, pluggable **rule-based reasoner** (semantic reasoning score) This is a practical scaffold; you can extend each block as your data matures. --- ## πŸ”§ Installation ```bash # Python 3.9+ recommended pip install torch numpy
```python
# model.py
# Reference implementation for HarmonyNet-style recommender:
# - Collaborative filtering (matrix factorization)
# - Multimodal fusion (audio/text/image)
# - Lightweight graph propagation over item nodes
# - Optional rule-based reasoning for interpretability
#
# This is a scaffold you can extend with your real data pipeline.

from typing import Optional, Dict, List, Any, Tuple
import math
import torch
import torch.nn as nn
import torch.nn.functional as F


# 

DFBM-SKIF-EduFit

# DFBM-SKIF-EduFit ## Overview This repository provides a reference implementation of the **Dynamic Fitness Behavior Model (DFBM)** and the **Synergistic Knowledge Integration Framework (SKIF)**, proposed in the paper: > Hui Wang, Wanxin Du. *Big data-driven fitness behavior modeling and group motion feature extraction methods for education management evaluation.* IEEE Access, 2023. The framework leverages big data analytics, deep learning, and group motion analysis to improve educational management evaluation, focusing on both **individual fitness behaviors** and **collective group dynamics**. --- ## Key Components - **Dynamic Fitness Behavior Model (DFBM)**: - Multimodal encoder combining CNN + RNN layers for spatial and temporal feature extraction. - Attention mechanism to highlight critical behavioral cues. - Fusion of temporal and spatial signals for predictive insights. - Illustrated in *Figure 1 (p.5)* and *Figure 2 (p.6)* of the paper&#8203;:contentReference[oaicite:1]{index=1}. - **Synergistic Knowledge Integration Framework (SKIF)**: - Integrates **individual fitness modeling** with **group motion feature extraction**. - Employs clustering to minimize intra-group variance and maximize inter-group separation. - Hybrid ensemble model combining fitness and group scores: \[ E = \alpha \cdot F + \beta \cdot M \] where *F* = fitness score, *M* = group motion score&#8203;:contentReference[oaicite:2]{index=2}. - See *Figure 3 (p.7)* for unified architecture. --- ## Datasets The experiments referenced multiple datasets&#8203;:contentReference[oaicite:3]{index=3}: - **Fitness Behavior Tracking Dataset** – wearable & app-based individual fitness activities. - **Group Motion Analysis Dataset** – team sports, dance, collaborative group dynamics. - **Educational Fitness Evaluation Dataset** – school-based endurance, strength, agility tests. - **Student Activity Patterns Dataset** – daily student life and time management. --- ## Experimental Results Performance was benchmarked against state-of-the-art baselines (ResNet, ViT, I3D, BLIP, DenseNet, MobileNet). The proposed framework consistently outperformed alternatives: - **Fitness Behavior Tracking Dataset**: Accuracy = **90.45%** vs. ~84–89% baselines. - **Group Motion Analysis Dataset**: Accuracy = **91.56%** vs. ~85–90% baselines. - **Educational Fitness Evaluation Dataset**: Accuracy = **89.48%** vs. ~86–87% baselines. - **Student Activity Patterns Dataset**: Accuracy = **91.02%** vs. ~87–89% baselines. (See *Tables 1–2 on p.10* for detailed metrics)&#8203;:contentReference[oaicite:4]{index=4}. --- ## Applications - Student fitness evaluation in schools and universities. - Group motion analysis for sports teams and PE classes. - Data-driven education management policy analysis. - Personalized and adaptive fitness program recommendations. --- ## Quickstart ```python import torch from model import DFBM_SKIF # Example: B=batch, T=time, D=features B, T, D = 8, 50, 32 x = torch.randn(B, T, D) model = DFBM_SKIF(input_dim=D, hidden_dim=64, num_classes=5) y = model(x) print("Output logits:", y.shape) # (B, num_classes)
```python
import torch
import torch.nn as nn
import torch.nn.functional as F

class DFBM(nn.Module):
    """
    Dynamic Fitness Behavior Model
    Combines CNN (spatial) + RNN (temporal) + Attention
    """
    def __init__(self, input_dim, hidden_dim=64, num_classes=5):
        super().__init__()
        self.conv1 = nn.Conv1d(input_dim, hidden_dim, kernel_size=3, padding=1)
        self.rnn = nn.GRU(hidden_dim, hidden_dim, batch_first=True)
        self.attn = nn.Linear(hidden_d

MARL-Gamified-Music-Education

# MARL-Gamified-Music-Education ## Overview This repository provides an implementation of a **multi-agent reinforcement learning (MARL)** framework for **gamification design in traditional music education**. The project builds upon the paper: > *An interactive strategy optimization method guided by multi-agent reinforcement learning for gamification design of traditional music education* > Authors: **Yuqing Huang & Shuangyu Pan** The proposed system introduces the **Harmonious Interaction Model (HIM)** and the **Interactive Gamification Optimization Model (IGOM)**, integrating reinforcement learning with gamification elements to enhance engagement, personalization, and educational outcomes. --- ## Motivation Traditional music education often struggles with low engagement and repetitive practice routines. Gamification offers a pathway to **improve motivation**, while MARL provides a **dynamic optimization method** for personalized and adaptive learning strategies. This project addresses: - Rigidity of rule-based systems. - Data dependency of machine learning. - Opacity of deep learning methods. By combining gamification with MARL, this system enables **real-time adaptive interventions** for students, balancing engagement, mastery, and cultural preservation&#8203;:contentReference[oaicite:1]{index=1}. --- ## Key Features - **Harmonious Interaction Model (HIM):** - Models students, instructors, and content as agents. - Uses **partially observable Markov decision processes (POMDPs)**. - Centralized critic for cooperative reward optimization. - **Interactive Strategy Optimization (IGOM):** - Encodes educational states as high-dimensional vectors. - Dual reward shaping (engagement vs mastery). - Policy optimization via reinforcement learning. - **Adaptive Engagement Strategy (AES):** - Dynamically modulates gamification components (points, badges, challenges). - Balances short-term fun with long-term skill acquisition. --- ## Architecture - **State Encoding:** Learner progress, engagement, and contextual data are embedded as vectors (see *Figure 4 in paper*). - **Reward Shaping:** Combines intrinsic satisfaction and extrinsic gamified rewards. - **Policy Optimization:** Gradient-based updates ensure evolving strategies&#8203;:contentReference[oaicite:2]{index=2}. --- ## Datasets The paper references multiple datasets: - Multi-Agent Learning Interaction Dataset - Gamification Strategy Optimization Dataset - Traditional Music Education Engagement Dataset - Reinforcement Learning Music Pedagogy Dataset These datasets provide agent interaction logs, gamification records, and performance outcomes for training and validation&#8203;:contentReference[oaicite:3]{index=3}. --- ## Results Experimental comparisons with SOTA baselines (ResNet, ViT, I3D, BLIP, DenseNet, MobileNet) show clear improvements: - Accuracy: **+2–4%** - Precision & Recall: consistently higher - AUC: stable across datasets&#8203;:contentReference[oaicite:4]{index=4} --- ## Example Use Cases - **Gamified piano practice with adaptive rewards** - **Collaborative group challenges in music ensembles** - **Dynamic difficulty adjustment for student progression** - **Curriculum planning based on reinforcement signals** --- ## Quickstart ```python from model import HIM_Agent, IGOM # initialize environment with students, instructors, and content env = YourMusicEnv() # initialize agent with policy agent = HIM_Agent(state_dim=128, action_dim=10) # optimization model igom = IGOM(agent, lr=0.001) # train on environment igom.train(env, episodes=500)
```python
import numpy as np

class HIM_Agent:
    def __init__(self, state_dim, action_dim, alpha=0.1, beta=0.2, gamma=0.9):
        """
        Harmonious Interaction Model (HIM) agent
        :param state_dim: dimension of state vector
        :param action_dim: number of actions
        """
        self.state_dim = state_dim
        self.action_dim = action_dim
        self.alpha = alpha  # engagement weight
        self.beta = beta    # performance weight
        self.gamma = 

Dynamic Path Generation for Knowledge Graph Reasoning in Educational Management

# Dynamic Path Generation for Knowledge Graph Reasoning in Educational Management ## Overview This repository provides an implementation of the **Dynamic Path Generation Model (DPGM)**, a novel engine that integrates **dynamic event graphs** with **knowledge graph reasoning** to improve decision-making in educational management. The approach enhances adaptability, contextual precision, and responsiveness by dynamically generating reasoning paths that respond to evolving educational environments. ## Motivation Traditional knowledge graph reasoning models are mostly static, making them unsuitable for handling real-time changes in data. In the context of educational management, where student enrollment, curriculum design, and performance monitoring evolve continuously, static reasoning is insufficient. This project addresses these limitations by introducing a **dynamic reasoning engine** that adapts to temporal and contextual updates. ## Key Features - **Dynamic Event Graphs**: Capture evolving temporal relationships and educational events. - **Adaptive Path Generation**: Generates reasoning paths aligned with real-time contexts. - **Multimodal Encoder**: Processes heterogeneous data (structural, semantic, and temporal). - **Graphical Propagation Layer**: Evaluates reasoning paths with temporal decay functions. - **Adaptive Path Scoring**: Balances alignment, cost, and predictive power. ## Architecture The framework consists of three key components: 1. **Preliminaries** – Defines knowledge graph structures, event-driven alignment, and utility functions. 2. **Dynamic Path Generation Model (DPGM)** – Incorporates event graphs, multimodal encoders, and a graphical propagation layer to dynamically generate paths. 3. **Dynamic Event Graph Strategy (DEGS)** – Supports real-time updates, adaptive path scoring, and machine learning–based predictions. See *Figure 1–3 in the paper* for schematic diagrams. ## Datasets The experiments leverage: - **Educational Knowledge Graph Events Dataset** - **Dynamic Path Generation Dataset** - **Decision-Making Graphs Dataset** - **Educational Management Reasoning Dataset** These datasets provide structured educational data and events for model training and evaluation. ## Results The proposed model achieves significant improvements compared to baselines such as ResNet, ViT, I3D, and BLIP on multiple datasets. Key improvements: - **Accuracy**: ~2–4% gain - **F1 Score**: ~2–3% gain - **AUC**: consistently higher stability and predictive quality ## Applications - **Personalized learning path recommendation** - **Curriculum planning and optimization** - **Educational policy decision-making** - **Resource allocation in institutions** ## Citation If you use this repository, please cite the original paper: > Shengsha Xu. *A path generation engine guided by dynamic event graphs for knowledge graph reasoning in educational management decision-making*. IEEE Access, 2023. ## License MIT License. See `LICENSE` for details.
import numpy as np

class DynamicPathGenerationModel:
    def __init__(self, decay_rate=0.1, alpha=0.5, beta=0.7, theta=(0.5, 0.3, 0.2)):
        """
        Initialize model parameters
        :param decay_rate: Ξ» for temporal decay
        :param alpha: weight for attribute relevance
        :param beta: weight for event significance
        :param theta: coefficients for utility function
        """
        self.decay_rate = decay_rate
        self.alpha = alpha
        self.beta

CRVG-KDAM for Enterprise Data Asset Valuation

# CRVG-KDAM for Enterprise Data Asset Valuation > Reference implementation of **Contextualized Relational Valuation Graph (CRVG)** and **Knowledge-Driven Attribution Mechanism (KDAM)**, proposed in the paper *"Multi-source heterogeneous data fusion evaluation strategies for enterprise data asset value identification"* (Author: **Weiwei Yi**). ## πŸ“– Overview This repository provides a PyTorch reference design for enterprise **data asset valuation** in heterogeneous, multi-source environments. It integrates: - **CRVG (Contextualized Relational Valuation Graph)**: - Models enterprise data as a heterogeneous attributed graph. - Uses attention-based relation-specific propagation to capture lineage, transformation, and access patterns. - Incorporates ontology-aligned embeddings for semantic enrichment. - Temporal gating to model evolving asset value. - **KDAM (Knowledge-Driven Attribution Mechanism)**: - Embeds semantic priorities, compliance constraints, and organizational mappings. - Adjusts valuation scores with risk penalties and strategic alignment. - Supports gradient-based interpretability and executive feedback loops. Together, CRVG + KDAM provide **dynamic, explainable, and strategy-aligned** valuation of enterprise data assets. ## ✨ Key Features - Graph-based heterogeneous data modeling. - Temporal decay functions and usage-aware utility modeling. - Semantic and compliance-aware adjustments. - Organizational budget redistribution logic. - Self-supervised training via contrastive learning and temporal smoothness regularization. - Evaluation metrics include Accuracy, Recall, F1, AUC, MAE, RMSE, and RΒ²&#8203;:contentReference[oaicite:1]{index=1}.
```python
# model.py
# CRVG + KDAM implementation (PyTorch)
# Author: Weiwei Yi (paper); reference code by ChatGPT
# Note: This is a simplified prototype

import torch
import torch.nn as nn
import torch.nn.functional as F

# -------------------------
# Relation-specific Graph Attention
# -------------------------
class RelationalGATLayer(nn.Module):
    def __init__(self, in_dim, out_dim, num_relations):
        super().__init__()
        self.relation_weights = nn.ModuleList([nn

VitalWatch-PTRE-DCAS

# VitalWatch-PTRE-DCAS > Reference implementation of **Physio-Temporal Relational Encoder (PTRE)** and **Domain-Calibrated Attention Surveillance (DCAS)** for abnormal vital sign monitoring in ICUs. This repository provides a PyTorch implementation of the perception stack proposed in the paper *"Design of deep learning perception strategies for abnormal vital sign monitoring in critical care patients"* (authors: **Bingbing Song**, **Qunfeng Li**, **Hong Chen**). The method integrates decay-aware temporal modeling, graph-based relational encoding across physiological signals, contextual self-attention fusion, and a domain-calibrated, uncertainty-aware surveillance head for robust alerting in real time. ## ✨ Key Ideas - **PTRE (Encoder)** - **Decay-aware temporal encoding** handles irregular sampling/missingness by exponentially decaying stale hidden states. - **Graph relational modeling** learns dynamic inter-signal dependencies with attention-weighted message passing. - **Contextual fusion** (Transformer-style self-attention) summarizes local temporal and global cross-signal context. - **DCAS (Head)** - **Signal-wise attention** prioritizes channels relevant at each step. - **Exponential memory** integrates immediate risk with accumulated temporal evidence. - **Domain-adaptive thresholding** conditions alerts on clinical context vectors. - **Uncertainty estimation** via Monte-Carlo dropout for reliable decisions + gradient attribution hooks. > Architectural overviews: PTRE (Fig. 1, p.5), decay-aware temporal encoder (Fig. 2, p.6), DCAS (Fig. 3, p.7), multimodal attention aggregation (Fig. 4, p.7). Source: the uploaded paper.
```python
# model.py
# VitalWatch-PTRE-DCAS: PyTorch reference implementation
# Core components:
# 1) Decay-aware temporal encoding (per-signal) with GRUCell
# 2) Graph-based relational modeling with attention-weighted adjacency
# 3) Contextual fusion via MultiheadAttention (Transformer-style)
# 4) DCAS head: signal-wise attention, exponential memory, domain-adaptive threshold
# 5) Optional Monte-Carlo dropout for uncertainty

from typing import Optional, Dict
import torch
import tor

EthosGraph + VirtueFlow

# EthosGraph + VirtueFlow: Intelligent Moral Education Recommendation This repository provides a PyTorch-based reference implementation of the framework proposed in the paper *"Application of Knowledge Graphs for Intelligent Recommendation of Moral Education Curriculum Resources and Generation of Personalized Learning Paths"* by **Feng Xianjing**&#8203;:contentReference[oaicite:1]{index=1}. The system introduces two novel components: - **EthosGraph**: A graph-based semantic representation model for encoding curriculum resources with moral values, pedagogical intents, and contextual cues. - **VirtueFlow**: An adaptive deployment strategy for dynamically generating personalized learning paths aligned with moral development objectives. --- ## Overview Traditional recommendation systems in education often rely on static content matching or superficial learner profiling, which fail to account for cultural, ethical, and developmental factors. This work addresses these challenges through **semantic modeling** and **adaptive curriculum planning**: - **EthosGraph** encodes curriculum resources as multi-relational graphs, capturing ethical values, pedagogical intent, and cross-resource semantic links&#8203;:contentReference[oaicite:2]{index=2}. - **VirtueFlow** leverages optimization and reinforcement-style sequencing to recommend individualized resource trajectories, balancing *value alignment*, *cognitive load*, and *emotional salience*&#8203;:contentReference[oaicite:3]{index=3}. Together, they form a scalable, interpretable, and pedagogically sound recommendation engine for moral education. --- ## Core Components ### EthosGraph - Encodes resources as tuples `(content, values, ethical-graph, scaffolding, pedagogical profile)`. - Supports **multimodal ethical representation**, **learner-dependent traversal**, and **cross-resource semantic integration**&#8203;:contentReference[oaicite:4]{index=4}. - Learner-specific traversal highlights relevant moral dimensions based on age, prior orientation, and readiness profile. ### VirtueFlow - Performs **dynamic moral objective optimization**, estimating projected moral development vs. cognitive-affective costs&#8203;:contentReference[oaicite:5]{index=5}. - Selects sequences of resources under continuity constraints (semantic bridges between nodes). - Incorporates **ethical and cross-cultural alignment** by embedding cultural priors and universal moral principles&#8203;:contentReference[oaicite:6]{index=6}. --- ## Datasets The framework was validated on four datasets: 1. **Moral Education Knowledge Graph Dataset** (50,000+ triples, civic responsibility, empathy, teamwork), 2. **Personalized Learning Path Recommendation Dataset** (3,000+ students, logs of moral learning behaviors), 3. **Curriculum Resource Mapping Dataset** (10,000+ multi-modal resources aligned with standards), 4. **Intelligent Moral Education Insights Dataset** (100,000+ multimodal student-system interactions, emotions & reflections)&#8203;:contentReference[oaicite:7]{index=7}. --- ## Results - Accuracy up to **90%** and AUC near **89%**, outperforming baselines such as CLIP, ViLT, UNITER, VisualBERT, MMBT, and ALBEF&#8203;:contentReference[oaicite:8]{index=8}. - Ablation confirmed three critical modules: Multimodal Ethical Representation (MER), Learner-Dependent Ethical Traversal (LDET), and Dynamic Moral Objective Optimization (DMOO)&#8203;:contentReference[oaicite:9]{index=9}. - Improved interpretability and resilience to noisy/missing multimodal data.
```python
# model.py
# EthosGraph + VirtueFlow implementation
# Based on Feng Xianjing (2023), IEEE Access

import torch
import torch.nn as nn
import torch.nn.functional as F

# -----------------------
# EthosGraph
# -----------------------

class EthosGraph(nn.Module):
    def __init__(self, in_dim=128, hidden_dim=256, embed_dim=64):
        super().__init__()
        self.fc1 = nn.Linear(in_dim, hidden_dim)
        self.fc2 = nn.Linear(hidden_dim, embed_dim)

    def forward

LAREN + ARDIS

# LAREN + ARDIS: Proactive Safety Risk Assessment and Early Warning This repository provides a PyTorch reference implementation of the framework proposed in the paper *"Design of a Proactive Safety Risk Assessment and Early Warning Model Guided by Sustainable Safety Management"* by **Wensong Liu, Ting Wen, Gang He, Yanqian Lu, and Jiayi Zhang**&#8203;:contentReference[oaicite:1]{index=1}. It introduces two key modules: - **LAREN (Latent Risk Equilibrium Network):** Encodes state-action trajectories into a temporally consistent latent risk space, enforcing equilibrium regularization, graph priors, and dynamic attention. - **ARDIS (Anticipatory Risk-Driven Intervention Strategy):** Operates in latent risk space to optimize proactive interventions through Bayesian forecasting, information-theoretic exploration, and constraint-aware control. --- ## Overview Traditional safety management often emphasizes *post-incident analysis*, which limits its effectiveness in dynamic, high-risk environments. This work shifts towards **anticipatory safety governance**, aligning with sustainability principles by minimizing environmental, economic, and social consequences of accidents&#8203;:contentReference[oaicite:2]{index=2}. **Core features of the framework:** 1. **Risk-Adaptive Latent Interaction Network (RALIN):** Captures hidden dependencies among hazards, interventions, and outcomes. 2. **LAREN:** Learns condensed latent risk embeddings that remain stable across temporal transitions. 3. **ARDIS:** Plans and prioritizes interventions, balancing risk minimization and uncertainty reduction&#8203;:contentReference[oaicite:3]{index=3}. --- ## Model Components ### 1. LAREN (Latent Risk Equilibrium Network) - **Encoder (EΟ•):** Maps observed + latent belief states to risk embeddings. - **Transition Operator (Tψ):** Models stochastic risk evolution under actions. - **Decoder (DΟ‰):** Forecasts cumulative risk using dynamic attention. - **Graph Consistency:** Smooths embeddings with structural priors&#8203;:contentReference[oaicite:4]{index=4}. Loss function includes: - Forecasting loss, - Variational regularization (KL divergence), - Equilibrium penalty&#8203;:contentReference[oaicite:5]{index=5}. ### 2. ARDIS (Anticipatory Risk-Driven Intervention Strategy) - Uses LAREN’s latent space for **rollout risk forecasting**. - Defines **safety buffers** and sensitivity thresholds to localize decisions. - Balances *risk reduction*, *intervention efficacy*, and *information gain*&#8203;:contentReference[oaicite:6]{index=6}. - Supports **hierarchical planning** with high-level region selection + low-level intervention policies. --- ## Datasets The experiments used four datasets: 1. **Workplace Safety Incident Records** – incident logs with metadata, 2. **Proactive Risk Assessment Metrics** – leading indicators from inspections and monitoring, 3. **Sustainable Safety Management Practices** – organizational strategies and culture, 4. **Early Warning System Performance Data** – logs from real deployed EWS systems&#8203;:contentReference[oaicite:7]{index=7}. --- ## Results - Achieved **F1 scores > 86%** and **AUC ~ 89%** across all datasets, outperforming LightFM, NeuMF, AutoRec, SASRec, and BERT4Rec&#8203;:contentReference[oaicite:8]{index=8}. - Ablation studies showed each module (encoder, transition operator, decoder) is critical for performance&#8203;:contentReference[oaicite:9]{index=9}. - Inference time < 20 ms per sample, suitable for near real-time deployment&#8203;:contentReference[oaicite:10]{index=10}.
```python
# model.py
# LAREN (Latent Risk Equilibrium Network) + ARDIS (Anticipatory Risk-Driven Intervention Strategy)

import torch
import torch.nn as nn
import torch.nn.functional as F

# --------------------------
# LAREN Components
# --------------------------

class LAREN(nn.Module):
    def __init__(self, state_dim=128, action_dim=32, latent_dim=64):
        super().__init__()
        # Risk Encoder
        self.encoder = nn.Sequential(
            nn.Linear(state_dim + a

MusicaNovaNet + Cognitone Calibration

# MusicaNovaNet + Cognitone Calibration A PyTorch reference implementation of the models described in the paper *"Personalized Music Education: Resource Recommendation and Adaptive Optimization"* by **Si Zhang** (Xinyang Normal University).&#8203;:contentReference[oaicite:1]{index=1} This repository contains implementations of: - **MusicaNovaNet**: a multimodal generative architecture for learner modeling, - **Cognitone Calibration**: a reinforcement-driven pedagogical strategy engine. The combined system supports **adaptive resource recommendation**, **real-time expressive feedback**, and **curriculum graph deformation**, enabling scalable, personalized music education. --- ## Overview Traditional music education systems struggle with: - Inflexible curriculum structures, - Limited adaptability to style and affective variations, - Poor incorporation of real-time learner signals.&#8203;:contentReference[oaicite:2]{index=2} The proposed system addresses these issues by modeling learning as a **partially observable sequential decision system**. It integrates: - **Multimodal Generative Model (MusicaNovaNet):** Uses symbolic, auditory, and gestural inputs to model competence and style via variational latent states and attention-driven encoders. - **Cognitive-Behavioral Strategy Engine (Cognitone Calibration):** Applies reinforcement learning to adjust tasks, feedback, and difficulty dynamically, aligning with learner progress and affective cues.&#8203;:contentReference[oaicite:3]{index=3} --- ## Key Contributions ### 1. MusicaNovaNet - Dual-branch multimodal encoder (task + learner response), - Variational latent space with **disentangled competence vs. style** representations, - Attention-driven feedback relevance estimation, - Auxiliary affective prediction from gesture streams&#8203;:contentReference[oaicite:4]{index=4}. ### 2. Cognitone Calibration - Policy optimization for task selection with pedagogical utility, - Temporal policy updating with exponential smoothing, - Dynamic curricular deformation via curriculum graph rewiring, - Affective-aware modulation of feedback emphasis&#8203;:contentReference[oaicite:5]{index=5}. --- ## Datasets Experiments were conducted on four datasets: 1. **Music Learning Styles Dataset** – student engagement typologies, 2. **Adaptive Music Curriculum Dataset** – AI-driven adaptive instruction logs, 3. **Student Music Preference Dataset** – genre and taste profiling, 4. **Music Resource Utilization Dataset** – school-level resource tracking&#8203;:contentReference[oaicite:6]{index=6}. --- ## Results - Outperformed SOTA models like VideoMAE, TimeSformer, and SlowFast, - Achieved **92%+ accuracy** on multiple datasets, - Ablation studies confirmed the contribution of latent competence tracking, expressive dynamics, and multimodal fusion&#8203;:contentReference[oaicite:7]{index=7}.
```python
# model.py
# MusicaNovaNet + Cognitone Calibration
# Reference PyTorch implementation based on Si Zhang's paper (2023)

import torch
import torch.nn as nn
import torch.nn.functional as F

# -------------------------------
# MusicaNovaNet Components
# -------------------------------

class MultimodalEncoder(nn.Module):
    def __init__(self, input_dim=128, hidden_dim=256):
        super().__init__()
        self.gru_task = nn.GRU(input_dim, hidden_dim, batch_first=True)