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data science

2,791 papers

#artificial intelligence Preprint Sep 2026

A statistical approach to bias in zero-shot learning: the lens of handwriting recognition

A statistical approach to bias rectification that can be combined in a turn-key fashion with any classical GZSL feature learner as a blackbox, thereby suggesting a wide scope of applicability of this method for a wide variety of GZSL implementations in different domains.

C. Chew, Gim Siang Chia, S. Chanda et al. · 0 citations
#artificial intelligence Preprint Sep 2026

FlowCPO: A Unified Divergence View of Preference Alignment for Flow Models

This work introduces FlowCPO, an offline forward-KL objective that uses both preferred and dispreferred samples without online rollouts and shows under explicit regularity conditions that the forward-KL objective is bounded by a contrastive flow matching loss, yielding a tractable surrogate on fixed data.

Yan-Sen Han, Shengyi Liao, Peng Sun et al. · 0 citations
#artificial intelligence Preprint Sep 2026

What Fixed-Rollout pass@k Evaluations Can Identify

This work gives an exact, conservative one-coordinate finite-task confidence certificate and a reporting standard separating direct estimates, identified sets, and model-conditioned forecasts, and gives exact count-law-preserving constructions with incompatible extrapolations with incompatible extrapolations.

Pranavi Singh, Prashant Singh · 0 citations
#artificial intelligence Preprint Sep 2026

Critical initialization destabilizes higher input derivatives in wide scalar-input networks

The edge-of-chaos condition preserves first-order input perturbations in wide randomly initialized networks, but physics-informed losses, score matching and derivative regularization depend on higher input derivatives. For smooth scalar-input fully connected networks, using a joint Gaussianity of the finite derivative...

Prashant Singh, Pranav Singh · 0 citations
#data science Open access Sep 2026

xuzhougeng/wisp-science: v1.10.0: MCP

<!-- release-title: v1.10.0: MCP --> wisp-science v1.10.0 v1.10.0 brings scientific MCP tools into Wisp's native Rust runtime. The bundled catalog provides 23 connectors and 247 tools across roughly 80 upstream databases, with browsable connector introductions and tool parameters. This release also improves first-time...

Zhougeng Xu, hoptop, Dinghow et al. · 0 citations
#data science Preprint Aug 2026

Characterizing Bias in Post-Bandit Inference under Index Algorithms

Bandit algorithms generate data for downstream inference, but adaptive sampling biases post-bandit sample means. We analyze this bias for stable index algorithms, including UCB1 and its generalizations, and derive sharp leading-order expressions for the sample-mean bias and expected $Z$-statistic. Our characterization...

Lisu Wang, Yilun Chen, Jiaqi Lu · 0 citations
#machine learning Preprint Open access Sep 2026

Sequential operator learning under dependent data

Learning operators from sequentially collected data arises in adaptive experimental design, Bayesian optimization, and dynamical-system modelling, where observations may be dependent, and future inputs or sensing operators may depend on preceding data. We derive time-uniform self-normalized concentration bounds for sto...

Rafael Oliveira · 0 citations

An Additive MLP-GNN Framework for Characterizing Chemical and Structural Contributions to Aqueous Solubility

An additive deep-learning framework that keeps physicochemical descriptors and molecular graph information separate throughout training attains competitive predictive performance while making the distinct roles of chemical and structural information more transparent.

S. Bhattacharya, Arkaprava Roy · 0 citations
#machine learning Preprint Open access Sep 2026

Expressivity of Contradiction Graphs

We study the contradiction graphs associated with a binary concept class. For a class $H\subseteq\{0,1\}^X$, the order-$m$ contradiction graph $G_m(H)$ has as vertices the $H$-realizable labeled sequences of length $m$, with two vertices adjacent when the two sequences assign opposite labels to some common domain point...

Jesse Campbell, Daniel Ibaibarriaga, Lev Reyzin · 0 citations

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