Research
On-device research index

arXiv research

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

Trend · papers per month

166332498664 · Jun 202019922001200920182026
48 results for Pairwise functions

Study learns linear utility functions from comparisons, showing learnability gaps between passive and active learning.

problem Learn linear utility functions from pairwise comparison queries.
method Analyzes passive and active learning settings, considering noise-free and noisy query responses.
result Efficient learnability of linear utilities in passive learning, but not for utility parameters without strong assumptions.

Paper studies SGD stability and optimization error in pairwise learning.

problem Stability and optimization error of SGD for pairwise learning.
method Established stability and optimization error trade-offs for SGD in convex, strongly convex, and non-convex settings.
result Lower bounds for SGD optimization error and excess expected risk.

Bayesian active learning finds individual's most preferred choice with deep Gaussian processes.

problem Finding individual's most preferred choice through pairwise comparisons.
method Active learning scheme using probabilistic models based on choice models and deep Gaussian processes, with a novel acquisition function.
result Effectiveness of the proposed active learning algorithm and models as demonstrated by experiments.

Pairwise learning usually refers to a learning task which involves a loss function depending on pairs of examples, among which most notable ones include ranking, metric learning and AUC maximization. In this paper, we study an online algorithm for pairwise learning with a least-square loss function in an unconstrained …

2015-02-25abs ↗pdf ↗

We consider the problem of learning regression functions from pairwise data when there exists prior knowledge that the relation to be learned is symmetric or anti-symmetric. Such prior knowledge is commonly enforced by symmetrizing or anti-symmetrizing pairwise kernel functions. Through spectral analysis, we show that …

2015-06-19abs ↗pdf ↗

New gossip algorithms solve decentralized optimization of pairwise functions.

problem Efficiently optimize global cost functions in decentralized networks.
method Gossip dual averaging algorithms for synchronous and asynchronous settings.
result Preserves convergence rate of centralized dual averaging with an additive bias.

Study shows attention-style models learn pairwise interactions efficiently.

problem Learning pairwise interactions in attention-style models.
method Proved minimax rate of convergence for learning pairwise interactions.
result Minimax rate is M2β2β+1M^{-\frac{2β}{2β+1}} independent of embedding dimension and token number.

Pairwise methods outperform pseudo-likelihood in high-dimensional Markov network structure learning.

problem Learning the structure of high-dimensional binary pairwise Markov networks.
method Comparison of pseudo-likelihood and pairwise methods on binary pairwise Markov networks.
result Pairwise methods can be more accurate than pseudo-likelihood methods in high-dimensional settings.

Efficient online learning with pairwise loss functions is a crucial component in building large-scale learning system that maximizes the area under the Receiver Operator Characteristic (ROC) curve. In this paper we investigate the generalization performance of online learning algorithms with pairwise loss functions. We…

2013-01-22abs ↗pdf ↗

Paper proposes Pcomp classification for binary classification with pairwise confidence comparisons.

problem Lack of pointwise labels due to privacy, confidentiality, or security reasons.
method Developed Pcomp classification, derived an unbiased risk estimator (URE), and improved it using correction functions and consistency regularization.
result Demonstrated the effectiveness of Pcomp classification methods.

We investigate a generic problem of learning pairwise exponential family graphical models with pairwise sufficient statistics defined by a global mapping function, e.g., Mercer kernels. This subclass of pairwise graphical models allow us to flexibly capture complex interactions among variables beyond pairwise product. …

2013-11-21abs ↗pdf ↗

The paper uses Heegaard Floer homology to find lower bounds on link genera.

problem Finding lower bounds on the 4-genus of links with vanishing pairwise linking numbers.
method Using the h-function from Heegaard Floer homology to describe genera of surfaces bounded by link components.
result The h-function provides lower bounds for the 4-genus of links, and these bounds are sharp for some L-space links.

Pairwise quantile regression tackles similarity scoring in biometric systems.

problem Analyzing errors in similarity scoring for facial recognition.
method Established theoretical guarantees for pairwise quantile regression solutions, leveraging sharp concentration results for UU-processes.
result Proved generalization bounds and identified conditions for fast learning rates.

Enhances matrix completion with pairwise penalties for latent features.

problem Improving prediction performance in matrix completion.
method Proposes a general optimization framework with non-/convex pairwise penalty functions and develops an efficient algorithm.
result The proposed framework outperforms standard matrix completion methods, especially in scenarios with latent subgroup structures.

We develop efficient methods to approximate maximum entropy distributions for pairwise moments.

problem Intractability of calculating exact maximum entropy distributions.
method Design distributions that approximate maximum entropy distributions while maintaining comparable entropy.
result Approximation guarantees for log-partition functions comparable to low-temperature limits.

This paper tackles bandit optimization with a new pairwise comparison oracle for unknown strongly concave functions.

problem Maximizing an unknown strongly concave function over T periods with a biased pairwise comparison oracle.
method Introduced a discretization technique and local polynomial approximation to relate the problem to linear bandits. Developed a tournament successive elimination technique to localize the discretized cell and run LinUCB algorithm on cells.
result Established optimal regret bounds and improved state-of-the-art results in operations management problems.

Sampling a fraction of pairs can match full evaluation in machine learning losses.

problem High computational cost of full pairwise loss evaluation.
method Survey sampling techniques targeting informative pairs.
result Performance close to full pairwise evaluation achieved with frugal sampling.

Paper tackles interactive learning with noisy labels and comparisons, showing how comparison oracles can improve learning efficiency.

problem Interactive learning with noisy labels and comparisons.
method Characterizes comparison oracle as threshold function learning problem, presents algorithm with query complexity analysis.
result Lower bounds show almost optimal label and total query complexity.

A novel method classifies shapes by their square-root velocity function.

problem Classifying shapes in infinite-dimensional, curved spaces.
method Square-root velocity function, tangent spaces, principal components, combining pairwise classifiers.
result Improves classification accuracy by separating shapes and reducing dimensionality.

One significant challenge to scaling entity resolution algorithms to massive datasets is understanding how performance changes after moving beyond the realm of small, manually labeled reference datasets. Unlike traditional machine learning tasks, when an entity resolution algorithm performs well on small hold-out datas…

2015-09-10abs ↗pdf ↗

In spectral clustering and spectral image segmentation, the data is partioned starting from a given matrix of pairwise similarities S. the matrix S is constructed by hand, or learned on a separate training set. In this paper we show how to achieve spectral clustering in unsupervised mode. Our algorithm starts with a se…

2012-07-04abs ↗pdf ↗

A new method learns from pairwise comparisons to predict sensitive data without making strong assumptions.

problem Predicting sensitive data like annual income from unlabeled data with unknown target correspondence.
method Utilizes pairwise comparison data to learn a regression model without strong assumptions.
result The learned model converges to optimal with optimal parametric rate for uniformly distributed targets.

Active learning optimizes correlation clustering by querying the most informative pairwise comparisons.

problem Efficiently clustering data with limited pairwise similarity information.
method Developed principled active learning approach using information-theoretic acquisition functions.
result Significantly outperforms existing baselines in clustering accuracy and query efficiency.

Estimates latent positions in 1D torus from noisy pairwise affinities.

problem Estimating latent positions in a 1D torus from noisy pairwise affinities.
method Introduced an estimation procedure with provable localization error of O(log(n)/n)O(\sqrt{\log(n)/n}).
result The estimation procedure provably localizes latent positions with a maximum error of O(log(n)/n)O(\sqrt{\log(n)/n}).

Hybrid-MST improves preference aggregation from sparse data.

problem Recovering ratings from sparse and noisy pairwise data.
method Bayesian optimization and Bradley-Terry model for utility function, Gaussian-Hermite quadrature for EIG estimation, hybrid sampling strategy.
result Hybrid-MST outperforms state-of-the-art methods in preference aggregation.

The Johnson-Lindenstrauss Lemma allows for the projection of nn points in pp-dimensional Euclidean space onto a kk-dimensional Euclidean space, with k24lnn3ε22ε3k \ge \frac{24\ln \emph{n}}{3ε^2-2ε^3}, so that the pairwise distances are preserved within a factor of 1±ε1\pmε. Here, working directly with the distributions of the …

2010-05-10abs ↗pdf ↗

Flexible model predicts sports outcomes over time.

problem Predicting sports outcomes with varying player/team skill over time.
method Probabilistic model using continuous-time Gaussian processes for dynamic parameters, efficient inference algorithm.
result Model outperforms competing approaches in predictive performance and scalability.

The paper proposes a method to calibrate evidential clustering using bootstrapped finite mixture models.

problem Representing uncertainty in cluster membership using Dempster-Shafer mass functions.
method Constructing Dempster-Shafer mass functions by bootstrapping finite mixture models, computing confidence intervals, and calibrating the evidential partition.
result The proposed method calibrates the evidential partition such that the belief and plausibility degrees approximate the true probabilities with high confidence.

Geometric framework for consistent pairwise comparisons reduces inconsistency.

problem Inconsistency in pairwise comparisons matrices.
method Generalized pairwise comparison matrices to Lie group GG, provided necessary and sufficient consistency criteria, and proposed geometric interpretation.
result Found a geometric interpretation and basic criteria for finding nearest consistent matrices.

This paper extends Median-of-Means to new learning problems involving pairwise comparisons.

problem Learning from pairwise comparisons in machine learning.
method Segmenting data into blocks, comparing pairs of decision rules, and declaring the winner based on majority performance.
result The Median-of-Means approach maintains robustness and performance under various sampling schemes.

Study on exotic smooth embeddings of surfaces in 4-manifolds, revealing different properties and complexities.

problem Understanding exotic smooth embeddings of surfaces in 4-manifolds.
method Analyzing smooth, proper embeddings of noncompact surfaces in 4-manifolds, focusing on exotic planes and annuli.
result Exotic planes and annuli exhibit radically different properties, with one class being simple enough to draw explicit level diagrams.

Paper extends knowledge gradient for preferential BO, overcoming computational challenges.

problem Extending knowledge gradient to preferential BO with pairwise comparisons.
method Derive exact and analytical knowledge gradient for preferential BO.
result Exact knowledge gradient outperforms existing acquisition functions on benchmark problems.

Sparse logistic regression recovers any discrete pairwise graph model.

problem Recovering the Markov graph of discrete pairwise graphical models.
method Maximum conditional log-likelihood with convex optimization.
result The algorithm can recover any arbitrary discrete pairwise graphical model.

We present a global optimization algorithm for clustering data given the ratio of likelihoods that each pair of data points is in the same cluster or in different clusters. To define a clustering solution in terms of pairwise relationships, a necessary and sufficient condition is that belonging to the same cluster sati…

2015-06-09abs ↗pdf ↗

Researchers discover phase transitions in estimating object ranks from pairwise interactions.

problem Estimating the underlying ranks of objects from pairwise comparisons or collaborations.
method Characterized optimal statistical error rates for various signal-to-noise ratios.
result Phase transitions between optimal error rates of polynomial, exponential, zero, and trivial.