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A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,341 papers · 148 categories

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48 results for alignment techniques

The application of machine learning to bioinformatics problems is well established. Less well understood is the application of bioinformatics techniques to machine learning and, in particular, the representation of non-biological data as biosequences. The aim of this paper is to explore the effects of giving amino acid…

2013-02-15abs ↗pdf ↗

Paper presents a method to align unpaired samples across different modalities.

problem Challenges in collecting paired samples for multimodal representation learning.
method Uses propensity score alignment based on Rubin's framework to estimate a common space for unpaired samples.
result Optimal transport matching significantly improves alignment in real-world data.

Develops a topology-based test for AI model alignment and interpretability.

problem Testing and interpreting opaque AI models is difficult due to their complexity and lack of interpretability.
method Introduces a topology-based multi-modal alignment test to make AI models more interpretable.
result Demonstrates the effectiveness of the topology-based test in making AI model deployment and comparison more intuitive.

iMATCH aligns non-contiguous chunks for iSTS with ILP and outperforms other systems.

problem Addressing iSTS with explanatory chunk alignment and score assignment.
method iMATCH uses ILP for chunk alignment and Random Forest for similarity type/score assignment.
result iMATCH outperforms other systems in alignment score and overall score for students dataset.

MetFA aligns source and target domains for cross-device image classification.

problem Learning discriminative class boundaries across different domains.
method Distance metric guided feature alignment (MetFA) for domain-invariant and discriminative feature extraction.
result MetFA outperforms state-of-the-art methods in cross-device image classification.

A technique for clustering categorical data using ensembled dissimilarity matrices.

problem Clustering categorical data efficiently and accurately.
method Generate many dissimilarity matrices, average them, and extend to high dimensions using alignment techniques.
result Our method provides better clustering results, especially for genome sequences.

New method measures patient similarity over time, improving disease risk prediction.

problem Chronic diseases' varying progression rates and heterogeneous clinical presentations make patient comparison difficult.
method Subsequence alignment to account for pathophysiological misalignment and varying patient presentation times.
result Subsequence alignment outperforms global alignment in predicting disease progression.

The abstract explores connections between reinforcement learning, scaling, and diffusion.

problem Aligning reinforcement learning with human feedback and scaling techniques.
method Clarifying connections between reinforcement learning, scaling, and diffusion.
result Introducing a resampling approach for alignment and reward-directed diffusion models.

TTW aligns time-series faster and more accurately than existing methods.

problem Efficiently aligning multiple time-series signals with varying lengths.
method TTW uses a sinc convolutional kernel and gradient-based optimization for linear time and sequence complexity.
result TTW outperforms existing methods in time-series averaging and classification tasks.

PILAF optimizes reward models from human feedback for better policy alignment.

problem Creating accurate reward models from human feedback for policy optimization.
method Policy-Interpolated Learning for Aligned Feedback (PILAF) that explicitly aligns preference learning with maximizing underlying oracle reward.
result PILAF is optimal from both optimization and statistical perspectives, demonstrating strong performance in RLHF settings.

Proposes a method for coarse graph alignment using sparse partial least squares.

problem Aligning graphs with community structures when there's no natural one-to-one mapping.
method Sparse partial least squares method incorporating observed graph structures and imposing sparsity.
result Demonstrates effectiveness in simulations.

Proposes a new method for manifold alignment using geometry-regularized twin autoencoders.

problem Traditional MA methods lack out-of-sample extension and real-world applicability.
method Guided representation learning with geometry-regularized twin autoencoders.
result Improves cross-domain generalization and robustness while maintaining alignment fidelity.

ReMixMatch improves semi-supervised learning with new techniques for data efficiency.

problem Improving semi-supervised learning with limited labeled data.
method Distribution alignment and augmentation anchoring with AutoAugment.
result Significantly more data-efficient, requiring less labeled data for similar accuracy.

Researchers prove it's impossible to partially recover graph alignments in certain conditions.

problem Recovering vertex correspondence between two random graphs with correlated edges.
method Used the probabilistic method to build automorphisms between tree components of a subcritical Erdös-Rényi graph.
result Proved an impossibility result for partial recovery in the sparse regime with constant average degree and correlation.

The paper proposes a method to align AI models using conformal risk control.

problem Aligning AI models to meet end-user requirements in non-generative settings.
method Post-processing a pre-trained model to better align with a subset of functions using conformal risk control.
result A probabilistic guarantee that the resulting conformal interval around a model contains a function approximately satisfying a desired property.

End-to-end TTS framework uses hard alignment to improve accuracy.

problem End-to-end TTS systems struggle with accurate alignment between input text and output acoustic features.
method Proposes a constrained alignment scheme with hard monotonic alignments, marginalized during training.
result Improves alignment learning and prediction in end-to-end TTS systems.

A new method for aligning datasets without known correspondences.

problem Aligning datasets from different domains without labeled correspondences.
method Integrates MDS and Wasserstein Procrustes for joint optimization of embeddings and correspondences.
result Maps datasets to a common low-dimensional space without labeled correspondences.

New optimization technique for aligning points to lines, improving existing algorithms.

problem Minimizing distances between points and lines with given constraints.
method Combining techniques from computational geometry, combinatorics, and convex optimization.
result First constant-factor approximation algorithms for Points-to-Lines alignment with polynomial running time.

Unified approach to domain generalization by aligning gradients and Hessians.

problem Developing models that generalize well across unseen domains.
method Moment Alignment, extending transfer measure to DG, aligning derivatives across domains.
result Moment Alignment unifies gradient and Hessian matching approaches, improving generalizability.

ELS framework improves safety alignment by dynamically steering LLMs towards helpful responses.

problem Over-Refusal in Aligned Large Language Models
method Fine-tuning free framework using an Energy-Based Model (EBM) to dynamically steer LLMs during inference.
result Extensive experiments show a significant reduction in false refusals (from 57.3% to 82.6%) while maintaining safety performance.

New research shows label refinement and weak training have limitations for aligning LLMs.

problem Limitations of refinement methods for aligning large language models.
method Analyzed probabilistic assumptions and alternative approaches to label refinement and weak training.
result Label refinement and weak training suffer from irreducible error, leaving a performance gap.

Improves text-dependent speaker verification using neural network supervectors and AUC optimization.

problem Enhance performance in text-dependent speaker verification systems.
method Proposes a supervector generation method and AUC optimization for neural networks.
result Improves system performance through novel alignment techniques and AUC optimization.

RePULSe improves language model alignment by reducing undesired outputs without sacrificing overall performance.

problem Aligning language models with human preferences while minimizing undesired outputs.
method Integrates probabilistic inference into RL training to reduce undesired outputs.
result RePULSe achieves a better balance between expected reward and undesired output probability.

Method evaluates disentanglement in DLVMs, including those not aligned with latent axes.

problem Evaluate disentanglement in DLVMs, especially those not aligned with latent axes.
method Proposes a statistical method to discover generative factors of a dataset.
result Empirically demonstrates the advantage of the method on two datasets.

New algorithm improves inference-time alignment without reward hacking.

problem Improving quality of responses from language models with limited compute.
method Inference-time alignment, focusing on extttInferenceTimePessimism exttt{InferenceTimePessimism} algorithm.
result Optimal performance and scaling-monotonicity of extttInferenceTimePessimism exttt{InferenceTimePessimism}.

The paper proposes a method to align surgical videos using kinematic data.

problem Difficulty in learning from comparing novice to expert surgical videos due to variability in gesture duration and execution.
method A novel technique using Dynamic Time Warping to synchronize videos of the same gesture at different speeds.
result The proposed approach allows for the alignment of surgical videos, enabling better learning for novice trainees.

Paper introduces MSA for weakly supervised covariance alignment in MEG signals.

problem Limited labeled signals in target datasets for MEG applications.
method Mixing model Stiefel Adaptation (MSA) leveraging unlabeled data.
result MSA outperforms recent methods in brain-age regression with MEG signals.

Hessian alignment improves OOD generalization in deep learning.

problem Improving deep learning models' ability to generalize to out-of-distribution data.
method Analyzed Hessian and gradient alignment for domain generalization using recent OOD theory.
result Hessian alignment methods achieve promising performance on various OOD benchmarks.

The paper develops dynamic word embeddings to capture evolving language structures.

problem Capturing the evolving meanings and associations of words over time.
method Develops a dynamic statistical model to learn time-aware word vector representation, solving the alignment problem.
result The model reliably captures the evolution of language over time and outperforms state-of-the-art approaches.