Deep learning predicts crime patterns in real time.
problem Accurate real-time crime prediction for public safety.
method Adapted deep learning spatio-temporal predictor ST-ResNet to predict crime distribution over Los Angeles.
result Models reveal highly accurate predictive power over a half year period.
Model predicts crime distribution in real-time, superior to existing methods.
problem Accurate real-time crime forecasting is difficult due to sparse and weak historical data.
method Adapted spatial temporal residual network to predict crime distribution in Los Angeles.
result The proposed model outperforms existing approaches in crime prediction accuracy.
Predict crime using urban metrics with machine learning.
problem Predict crime using urban metrics and handle multicollinearity.
method Random forest regressor for crime prediction and clustering of urban indicators.
result Urban indicators like unemployment and illiteracy are most important for predicting homicides.
CRIMED optimizes regret in bandits with unbounded stochastic corruption.
problem Minimizing regret in bandits with arbitrary unbounded corruptions.
method Introduces CRIMED, an asymptotically-optimal algorithm for Gaussian distributions with known variance.
result Achieves exact lower bound on regret for Gaussian distributions with high corruption probability.
New algorithm embeds crime events using RBMs with feature selection.
problem Capturing complex crime data features for event embedding.
method Regularized RBMs with ℓ1 penalty for feature selection. result Improved event embedding with interpretable selected features.
Predictive policing models can be biased by differential crime reporting rates.
problem Bias in predictive policing models due to differential crime reporting.
method Simulation based on Bogotá, Colombia's victimization and crime reporting data.
result Differential crime reporting rates can lead to misallocation of police patrols.
New model detects crime linkages from text, time, and space.
problem Detecting crime linkages from limited information.
method Spatio-temporal-textual Hawkes processes with text embeddings.
result Joint modeling of space, time, and text enhances crime linkage detection.
Deep learning improves crime prediction accuracy.
problem Improving crime prediction accuracy using deep learning.
method Comparative study of 10 deep learning methods on crime data.
result Deep learning methods outperform existing methods in crime prediction.
The paper introduces a US crime index to assess financial losses from property and cyber crimes.
problem Lack of indices evaluating crime's financial impact on investments.
method Developed an index-based insurance portfolio using FBI financial losses data.
result Real estate, ransomware, and government impersonation are major risk contributors.
Detects crime series using RBM embeddings from crime narratives.
problem Detecting related crime series from crime records.
method Unsupervised learning of latent feature embeddings using Gaussian-Bernoulli RBM.
result Related cases are closer in feature space, unrelated cases are far apart.
Paper aims to use AI for detecting financial crimes, focusing on money laundering.
problem Financial institutions need better technologies to detect and predict financial crimes.
method Study recent works, develop a novel model for money laundering detection.
result Demonstrates a model for detecting money laundering cases with minimal human intervention.
Deep learning predicts crime counts with high accuracy.
problem Forecasting crime counts in city partitions.
method Used deep neural networks trained on crime data and additional datasets.
result Predicted crime counts with 75.6% and 65.3% accuracy for Chicago and Portland.
Paper predicts crimes using historical data and machine learning.
problem Predicting and preventing crime activities.
method Supervised learning with decision tree, k-nearest neighbor, Random Forest, and Adaboost algorithms.
result The system predicts crimes with better accuracy using historical data.
The paper models crime risk using Foursquare check-ins and mobility data.
problem Understanding and predicting crime risk in urban areas.
method Directed graph of aggregated movement data, region risk factor derivation, DIFFER features.
result Reliable correlations between DIFFER features and crime count observed.
Runaway feedback loops in predictive policing cause crime rate disparities.
problem Runaway feedback loops in predictive policing systems exacerbate crime rate disparities.
method Developed a mathematical model to explain and demonstrate interventions to prevent runaway feedback loops.
result Interventions can prevent runaway feedback loops and allow true crime rates to be learned.
The study improves crime prediction using Foursquare and streetlight data with demographic info.
problem Improving crime prediction models using diverse data sources.
method Combining Foursquare and streetlight data with demographic info for crime prediction.
result The proposed model enhances classification performance in crime prediction.
New approach predicts crime and terrorism events with high accuracy and transparency.
problem Predicting crime and terrorism events with high accuracy and interpretability.
method Granger Network inference for local transport rules learning.
result Achieved AUC of ~90% for crime predictions and ~80% for terrorism predictions.
This study predicts crime trends in Denver using machine learning.
problem Predicting crime patterns to aid law enforcement and resource allocation.
method Statistical analysis, data visualization, and various classification algorithms.
result Ensemble Model 4 achieved the highest accuracy in predicting crime.
CASTNet forecasts opioid overdoses using crime patterns.
problem Forecasting opioid overdose occurrences.
method Community-attentive spatio-temporal networks incorporating multi-head attention.
result Superior forecasting performance and interpretable community contributions.
Paper proposes a federated graph learning platform to improve financial crime detection.
problem Current financial crime detection methods are ineffective and costly.
method Federated graph learning platform combining federated learning and graph learning.
result Federated model outperforms local model by 20%.
Method predicts crime hotspots with high resolution.
problem Forecasting sparse spatiotemporal events like crime.
method Combines RKHS methods with autoregressive smoothing kernels.
result Significantly outperforms baseline models for sparse events.
New fair-by-design model reduces bias in recidivism prediction.
problem Discriminatory bias in recidivism prediction models.
method Prototype-based, locally learned, data distribution extraction.
result Reduces bias and provides interpretable rules.
Transfer learning can worsen fairness, study finds.
problem Transfer learning can reduce fairness in predictions.
method Examined fairness of standard transfer and multi-task learning algorithms.
result Both standard algorithms suffer from discriminatory transfer.
Paper explores how unsupervised learning reduces financial crime risks.
problem Identifying high-risk financial groups from complex data.
method Combines clustering and dimensionality reduction techniques.
result KPCA outperforms other techniques in reducing financial crime risks.
Complex financial instruments allow insider trading without actual trades.
problem How to commit insider trading without executing a trade.
method Use of financial instruments to replicate the economic effect of trading.
result Insider trading can be committed without an actual trade.
Law responds to adversarial machine learning threats.
problem Adversarial machine learning attacks and their legal implications.
method Scenarios and legal analysis of adversarial ML attacks.
result Some attacks are more likely to result in liability.
Nested model averaging improves high-dimensional linear regression performance.
problem High-dimensional linear regression with predictor ordering impact.
method Combining model averaging with regularized estimators on the solution path.
result Nested model averaging with lasso and SLOPE outperforms competing methods.
Machine learning improves risk assessment for gender-based violence victims.
problem Accurately predicting recidivism risk in gender-based crime victims.
method Applied machine learning techniques to create models predicting recidivism risk.
result Proposed ML method outperforms classical statistical methods.
New model helps identify suspect footwear from crime scene prints.
problem Identifying a suspect's footwear from crime scene prints among thousands of similar shoes.
method Developed a hierarchical Bayesian model with spatially varying coefficients.
result Improved accuracy and reliability in forensic shoe print analysis.
The Poisson distribution has been widely studied and used for modeling univariate count-valued data. Multivariate generalizations of the Poisson distribution that permit dependencies, however, have been far less popular. Yet, real-world high-dimensional count-valued data found in word counts, genomics, and crime statis…
New method reconstructs networks from spatiotemporal data.
problem Network reconstruction from spatiotemporal data.
method Multivariate Hawkes processes using both temporal and spatial information.
result Spatiotemporal approach yields improved network reconstruction.
Algorithm learns fair allocations in unknown group frequencies.
problem Fairness in resource allocation problems.
method Efficient learning algorithm in a censored feedback model.
result Algorithm converges to optimal fair allocation.
New method for robust PCA with exponential family distributions.
problem Recovering low-rank structure from data matrices with outliers.
method Alternating Direction Method of Multipliers for eextRPCA. result Demonstrated effectiveness in steel sheet defect detection and crime activity monitoring.
Bayesian normalising flows improve conditional density estimation.
problem Complex conditional distributions in various settings.
method Bayesian normalising flows for flexible likelihood modeling.
result State-of-the-art performance on benchmark datasets.
This thesis evaluates the quality of binary classification models in crime forecasting tools.
problem Quality assessment of binary classification models in crime forecasting tools.
method Binary classifier approach to evaluate AUC and PPVk. result The PPVk deviates significantly from AUC in crime forecasting models. Paper proposes SOTL framework for improving transfer learning accuracy and efficiency.
problem Statistical bias and computational efficiency in multi-source domain adaptation.
method Sparse Optimization for Transfer Learning (SOTL) with L0-regularization.
result SOTL significantly improves estimation accuracy and computational speed, especially under adversarial conditions.
Estimates network structure from incomplete event data.
problem Estimating network structure from incomplete event data.
method Developed a novel approach using an unbiased estimator of the complete data log-likelihood function.
result Proposed a computationally efficient estimation algorithm.
We propose an efficient method for estimating covariate effects in doubly-stochastic spatial models.
problem Computational demands and restrictive assumptions in existing doubly-stochastic spatial models.
method Penalized regression method for estimating covariate effects in doubly-stochastic point processes.
result Consistency and asymptotic normality of the covariate effect estimates achieved despite model misspecification.
Survey of robust clustering methods for hotspot detection.
problem Detecting false positives in spatial hotspot mapping.
method Statistically rigorous clustering techniques.
result Survey of models and algorithms for robust clustering.
Novel framework for spatio-temporal event analysis using Hawkes processes.
problem Inference of dynamics in spatio-temporal event sequences.
method Randomized Fourier feature-based transformations and gradient descent.
result Improved fitting capability in synthetic and real datasets.
Paper develops a non-parametric model to estimate influence networks in high-dimensional time series.
problem Estimating influence networks in high-dimensional time series with many variables.
method Non-parametric sparse additive model (SpAM) using β and φ-mixing properties of Markov chains and empirical process techniques for RKHSs.
result Sharp upper bounds on mean-squared error for estimating influence networks.
New framework models time-uncertain point processes for better event prediction.
problem Uncertainty in event times in point processes.
method Formulated and discretized continuous-time Hawkes processes with time grid, enabling optimization methods for inference.
result Parameter recovery with O(1/k) convergence rate using gradient descent and VI. The paper proposes a machine learning framework for detecting DeFi fraud across multiple blockchain chains.
problem Early detection of financial crimes in decentralized finance (DeFi) ecosystems.
method Extracting features from different blockchain chains, employing XGBoost and Neural Network for fraud detection.
result Introduction of novel DeFi-related features significantly improves fraud detection accuracy.
BayesBag improves reproducibility of Bayesian inference under model misspecification.
problem Bayesian posteriors can be unreliable and inconsistent under model misspecification.
method Apply bagging to the Bayesian posterior to improve reproducibility.
result Bagged posteriors typically satisfy reproducibility criteria under misspecification.
Understanding cities is central to addressing major global challenges from climate and health to economic resilience. Although increasingly perceived as fundamental socio-economic units, the detailed fabric of urban economic activities is only now accessible to comprehensive analyses with the availability of large data…
The paper tackles flexible modeling of constrained multimodal data.
problem Flexible modeling of multimodal data on constrained spaces.
method Algorithm based on rejection sampling and data augmentation.
result Improved flexibility and applicability of mixture models to constrained spaces.
A recent paper of Arnold, Falk, and Winther [Bull AMS, 47 (2010)] showed that a large class of mixed finite element methods can be formulated naturally on Hilbert complexes, where using a Galerkin-like approach, one solves a variational problem on a finite-dimensional subcomplex. In a seemingly unrelated research direc…
New algorithm predicts spatio-temporal events with improved accuracy.
problem Non-stationary spatio-temporal prediction on dense and sparse sequences.
method Probabilistic approach using point processes and self-organizing decision trees.
result Significant performance improvements over baseline and state-of-the-art methods.