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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.

168,742 papers · 148 categories

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18365371 · Jun 202019922001200920172026
48 results for incorrect definition

Paper finds previous work on submanifolds incorrect.

problem Incorrect definition of semi-invariant submanifolds.
method Examined previous work's definition and found it flawed.
result Previous results on semi-invariant submanifolds are invalid.

Paper shows incorrectness of approximate unlearning definitions and challenges exact unlearning verification.

problem Incorrectness of approximate unlearning definitions and challenges in verifying exact unlearning.
method Analysis of machine unlearning approaches, including exact and approximate methods.
result Unlearning is only well-defined at the algorithmic level, and auditable claims are limited.

New framework for contesting algorithmic decisions, not just explaining them.

problem Helping individuals review and correct erroneous algorithmic decisions.
method Operationalized contestability as a natural complement to explainable AI (XAI), identifying three types of evidence for reversal.
result Existing EU legislation already grants individuals legal rights to contest algorithmic decisions.

Incorrect fixed point assertions in digital topology are discussed.

problem Incorrect, incorrectly proven, or trivial fixed point assertions in digital topology.
method Continues earlier work on identifying and critiquing bad fixed point assertions.
result Clarifies the nature and extent of incorrect fixed point assertions in digital topology.

Study shows AD for neural nets with machine-representable numbers can be incorrect.

problem Correctness of AD for neural nets with machine-representable numbers.
method Analyzed two sets of parameters: incorrect and non-differentiable. Proved bounds and conditions for AD correctness.
result AD can be incorrect for machine-representable numbers, but provides a Clarke subderivative on non-differentiable set.

Fine-tuning neural networks to guarantee performance on specific examples can also introduce incorrect inputs.

problem Ensuring reliable performance of neural networks on specific examples.
method Using SMT solvers to fine-tune ReLU neural networks to guarantee outcomes on a finite set of particular examples.
result Fine-tuning can introduce incorrect inputs that trigger unexpected performance.

Incorrect parity-based descriptions of realizable Gauss diagrams found, but bipartite graphs provide a valid approach.

problem Incorrect descriptions of realizable Gauss diagrams using parity conditions.
method Used bipartite graphs to describe realizable Gauss diagrams.
result Realizable Gauss diagrams can be accurately described using bipartite graphs.

Paper proposes methods to learn with multiple incorrect labels per example.

problem Learning with a single incorrect label per example limits potential.
method Proposes a novel problem setting allowing multiple incorrect labels per example and two learning methods.
result Demonstrates improved learning with multiple incorrect labels compared to single incorrect labels.

A minimalist approach improves LLM reasoning by filtering incorrect responses.

problem Improving large language model (LLM) reasoning on complex tasks.
method Revisit GRPO from a reinforce-like algorithm perspective, proposing Reinforce-Rej.
result RAFT, a simple rejection sampling baseline, outperforms GRPO and PPO.

Improves estimation under model misspecification with fake features.

problem Model misspecification with fake features.
method Proposes a framework to decompose output error into underlying, fake, and missing features.
result Fake features can significantly improve estimation performance, even when not correlated with underlying features.

Several recent papers in digital topology have sought to obtain fixed point results by mimicking the use of tools from classical topology, such as complete metric spaces. We show that in many cases, researchers using these tools have derived conclusions that are incorrect, trivial, or limited.

2018-08-29abs ↗pdf ↗

This paper proposes a novel type of random forests called a denoising random forests that are robust against noises contained in test samples. Such noise-corrupted samples cause serious damage to the estimation performances of random forests, since unexpected child nodes are often selected and the leaf nodes that the i…

2017-10-30abs ↗pdf ↗

We continue the work of [5] and [3], in which are considered papers in the literature that discuss fixed point assertions in digital topology. We discuss published assertions that are incorrect or incorrectly proven; that are severely limited or reduce to triviality under "usual" conditions; or that we improve upon.

2018-12-10abs ↗pdf ↗

Several recent papers in digital topology have sought to obtain fixed point results by mimicking the use of tools from classical topology, such as complete metric spaces and homotopy invariant fixed point theory. We show that in many cases, researchers using these tools have derived conclusions that are incorrect or tr…

2018-06-15abs ↗pdf ↗

The Frölicher spectral sequence of a compact complex manifold XX measures the difference between Dolbeault cohomology and de Rham cohomology. We construct for n2n\geq 2 nilmanifolds with left-invariant complex structure XnX_n such that the nn-th differential dnd_n does not vanish. This replaces an earlier incorrect e…

2007-09-04abs ↗pdf ↗

We study Bayesian discriminative inference given a model family $p(c,\x, θ)$ that is assumed to contain all our prior information but still known to be incorrect. This falls in between "standard" Bayesian generative modeling and Bayesian regression, where the margin $p(\x,θ)$ is known to be uninformative about $p(c|\x,…

2008-07-22abs ↗pdf ↗

Deep-MIL models fail to respect key MIL assumption, leading to incorrect learning.

problem Deep-MIL models learn anti-correlated instances, violating the standard MIL assumption.
method Proposed algorithmic unit tests to identify violations of MIL assumptions.
result Five prominent deep-MIL models fail algorithmic unit tests, revealing incorrect learning.

Ogburn et al. (2019, arXiv:1910.05438) discuss "The Blessings of Multiple Causes" (Wang and Blei, 2018, arXiv:1805.06826). Many of their remarks are interesting. But they also claim that the paper has "foundational errors" and that its "premise is...incorrect." These claims are not substantiated. There are no foundatio…

2019-10-15abs ↗pdf ↗

This paper studies a stylized, yet natural, learning-to-rank problem and points out the critical incorrectness of a widely used nearest neighbor algorithm. We consider a model with nn agents (users) {xi}i[n]\{x_i\}_{i \in [n]} and mm alternatives (items) {yj}j[m]\{y_j\}_{j \in [m]}, each of which is associated with a latent feat…

2018-07-09abs ↗pdf ↗

An active learner is given a hypothesis class, a large set of unlabeled examples and the ability to interactively query labels to an oracle of a subset of these examples; the goal of the learner is to learn a hypothesis in the class that fits the data well by making as few label queries as possible. This work addresses…

2015-10-09abs ↗pdf ↗

Formalizes weak and strong verification for LLMs, controlling errors without assumptions.

problem Balancing cost and reliability in reasoning with LLMs.
method Formalizes weak-strong verification policies, introduces metrics, develops online algorithm.
result Optimal policies admit a two-threshold structure, and calibration and sharpness govern value of weak verifiers.

This paper improves loss functions for deep learning with noisy labels.

problem Training deep neural networks with noisy labels.
method The paper introduces a normalization technique to make any loss function robust to noisy labels and proposes a framework called Active Passive Loss (APL) to combine robust loss functions.
result The proposed APL framework consistently outperforms state-of-the-art methods, especially under high noise rates.

We explore adversarial robustness in the setting in which it is acceptable for a classifier to abstain---that is, output no class---on adversarial examples. Adversarial examples are small perturbations of normal inputs to a classifier that cause the classifier to give incorrect output; they present security and safety …

2019-11-25abs ↗pdf ↗