Archives AI News

Probing Knowledge Holes in Unlearned LLMs

arXiv:2511.00030v1 Announce Type: new Abstract: Machine unlearning has emerged as a prevalent technical solution for selectively removing unwanted knowledge absorbed during pre-training, without requiring full retraining. While recent unlearning techniques can effectively remove undesirable content without severely compromising performance on…

Evaluation and Optimization of Leave-one-out Cross-validation for the Lasso

arXiv:2508.14368v2 Announce Type: replace-cross Abstract: I develop an algorithm to produce the piecewise quadratic that computes leave-one-out cross-validation for the lasso as a function of its hyperparameter. The algorithm can be used to find exact hyperparameters that optimize leave-one-out cross-validation…

DynBERG: Dynamic BERT-based Graph neural network for financial fraud detection

arXiv:2511.00047v1 Announce Type: new Abstract: Financial fraud detection is critical for maintaining the integrity of financial systems, particularly in decentralised environments such as cryptocurrency networks. Although Graph Convolutional Networks (GCNs) are widely used for financial fraud detection, graph Transformer models…

Representation-Level Counterfactual Calibration for Debiased Zero-Shot Recognition

arXiv:2510.26466v2 Announce Type: replace-cross Abstract: Object-context shortcuts remain a persistent challenge in vision-language models, undermining zero-shot reliability when test-time scenes differ from familiar training co-occurrences. We recast this issue as a causal inference problem and ask: Would the prediction remain…

Ranking hierarchical multi-label classification results with mLPRs

arXiv:2205.07833v2 Announce Type: replace Abstract: Hierarchical multi-label classification (HMC) has gained considerable attention in recent decades. A seminal line of HMC research addresses the problem in two stages: first, training individual classifiers for each class, then integrating these classifiers to…