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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.

169,341 papers · 148 categories

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295786114 · Jun 202019922001200920182026
48 results for web signals

Perceptual ad-blocking is vulnerable to attacks, creating new security risks.

problem Vulnerability of perceptual ad-blocking to attacks and new security risks.
method Analysis and creation of adversarial examples to bypass perceptual ad-blocking.
result Perceptual ad-blocking can be bypassed using adversarial examples, introducing new security risks.

YC Bench forecasts startup success in Y Combinator batches with a short-term metric.

problem Difficult forecasting of startup success due to sparse meaningful outcomes and slow evaluation cycles.
method Developed a live benchmark using publicly available traction signals and web visibility metrics.
result Revealed 6 out of 11 top performers at YC Demo Day with a simple proxy for prior brand recognition.

Brain signals predict user interest in digital content.

problem Finding relevant information from large document collections.
method A brain-information interface using EEG to infer user interest from reading Wikipedia.
result Users' interests can be modeled from brain signals, enabling information recommendation.

We find an invariant characterization of planar webs of maximum rank. For 4-webs, we prove that a planar 4-web is of maximum rank three if and only if it is linearizable and its curvature vanishes. This result leads to the direct web-theoretical proof of the Poincaré's theorem: a planar 4-web of maximum rank is lineari…

2006-05-04abs ↗pdf ↗

Classifies hexagonal circular 3-webs with cubic polar curves.

problem Classifying hexagonal circular 3-webs with algebraic polar curves of degree three.
method Analyzes hexagonal circular 3-webs on unit sphere with polar points on a twisted cubic.
result Completes the classification of hexagonal circular 3-webs with algebraic polar curves of degree three.

We construct flat 3-webs via semi-simple geometric Frobenius manifolds of dimension three and give geometric interpretation of the Chern connection of the web. These webs turned out to be biholomorphic to the characteristic webs on the solutions of the corresponding associativity equation. We show that such webs are he…

2011-08-09abs ↗pdf ↗

We give various results and applications using the connection (E,)(E,\nabla) associated with a dd-web. Precisely, we exhibit fundamental invariants of the web related to the differential equation of first order which presents the web. They cast some new lights on the connection and its construction, both conceptually an…

2007-02-12abs ↗pdf ↗

We investigate the linearizability problem for different classes of 4-webs in the plane. In particular, we apply a recently found in [AGL] the linearizability conditions for 4-webs in the plane to confirm that a 4-web MW (Mayrhofer's web) with equal curvature forms of its 3-subwebs and a nonconstant basic invariant is …

2002-09-22abs ↗pdf ↗

In the present paper we study geometric structures associated with webs of hypersurfaces. We prove that with any geodesic (n+2)-web on an n-dimensional manifold there is naturally associated a unique projective structure and, provided that one of web foliations is pointed, there is also associated a unique affine struc…

2008-12-11abs ↗pdf ↗

Projective invariants described for 3-web geometry, resolving Gronwall's conjecture.

problem Projective invariants of linear 3-webs and resolving Gronwall's conjecture.
method Projective torsion-free Cartan connections, web leaves as geodesics, algorithm for resolving Gronwall's conjecture.
result Resolved Gronwall's conjecture for specific 3-webs.

Much information available on the web is copied, reused or rephrased. The phenomenon that multiple web sources pick up certain information is often called trend. A central problem in the context of web data mining is to detect those web sources that are first to publish information which will give rise to a trend. We p…

2012-06-27abs ↗pdf ↗

In this paper we study the linearizability problem for 3-webs on a 2-dimensional manifold. With an explicit computation based on the theory developed in the paper "On the linearizability of 3-webs" (Nonlinear analysis 47, (2001) pp. 2643-2654), we examine a 3-web whose linearizability was claimed in the same paper. We …

2006-02-23abs ↗pdf ↗

Veronese webs appear as the natural way of passing to the quotient of curves in the projective space. In thi paper, we give the link between classical multidimensionnal webs and veronse webs by mean of interpolation.

2004-08-18abs ↗pdf ↗

This paper explores LETOR for E-Com search, addressing practical challenges and reporting key findings.

problem Applying LETOR to E-Com search presents unique challenges.
method Investigates practical challenges in LETOR for E-Com search, including feature representation, relevance judgments, and feedback signal exploitation.
result LETOR methods can effectively optimize combinations of popularity-based and relevance-based features, and order rate is the most robust training objective.

In this paper, we reconstruct Kuperberg's G2G_2 web space. We introduce a new web (a trivalent diagram) and new relations between Kuperberg's web diagrams and the new diagram. Using the G2G_2 webs, we define crossing formulas corresponding to R-matrices associated to some G2G_2 irreducible representations and calculate…

2015-03-29abs ↗pdf ↗

Gronwall conjecture states that a planar 3-web which admits more than one distinct linearization is locally equivalent to an algebraic web. We give a partial answer to the conjecture in the affirmative for the class of planar 3-webs with the web curvature that vanishes to order three at a point. The differential relati…

2011-02-01abs ↗pdf ↗

We find relative differential invariants of orders eight and nine for a planar nonparallelizable 3-web such that their vanishing is necessary and sufficient for a 3-web to be linearizable. This solves the Blaschke conjecture for 3-webs. As a side result, we show that the number of linearizations in the Gronwall conject…

2004-11-21abs ↗pdf ↗

I introduce Forecastable Component Analysis (ForeCA), a novel dimension reduction technique for temporally dependent signals. Based on a new forecastability measure, ForeCA finds an optimal transformation to separate a multivariate time series into a forecastable and an orthogonal white noise space. I present a converg…

2012-05-21abs ↗pdf ↗

Local classification of quasilinear systems with linearizable characteristic webs.

problem Classifying quasilinear systems with linearizable characteristic webs.
method Reciprocal transformations to uncoupled Hopf equations.
result Every quasilinear system with n>3 components can be transformed to n uncoupled Hopf equations.

The Gronwall conjecture states that a planar 3-web of foliations which admits more than one distinct linearizations is locally equivalent to an algebraic web. We propose an analogue of the Gronwall conjecture for the 3-web of foliations by Legendrian curves in a contact three manifold. The Legendrian Gronwall conjectur…

2012-02-29abs ↗pdf ↗

We study non-flat planar 3-webs with infinitesimal symmetries. Using multi-dimensional Schwarzian derivative we give a criterion for linearization of such webs and present a projective classification thereof. Using this classification we show that the Gronwall conjecture is true for 3-webs admitting infinitesimal symme…

2014-11-04abs ↗pdf ↗

Study spider evaluations and web group representations using algebraic topology.

problem Evaluate and represent the topology of web groups using algebraic methods.
method Analyze the fundamental groups of planar webs, associate irreducible components and graded subalgebras, and use Poincaré polynomials.
result Spider evaluations correspond to symmetrized Poincaré polynomials of associated graded subalgebras.