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.
Machine learning predicts ship performance changes over time.
Deep learning automates biofouling detection in ship hull images.
Decision tool helps manage biofouling risks for ships in the Baltic Sea.
Many real-world objects are designed by smooth curves, especially in the domain of aerospace and ship, where aerodynamic shapes (e.g., airfoils) and hydrodynamic shapes (e.g., hulls) are designed. To facilitate the design process of those objects, we propose a deep learning based generative model that can synthesize sm…
In this work a novel ships dataset is proposed consisting of more than 56k images of marine vessels collected by means of web-scraping and including 12 ship categories. A YOLOv3 single-stage detector based on Keras API is built on top of this dataset. Current results on four categories (cargo ship, naval ship, oil ship…
Paper uses DBSCAN variation to detect ship anomalies.
Transformer learns shipping costs more accurately than traditional methods.
Adaptive rerouting reshapes impacts of maritime chokepoint disruptions
AI helps simplify complex ship finance processes.
Marine buoys aid in the battle against Illegal, Unreported and Unregulated (IUU) fishing by detecting fishing vessels in their vicinity. Marine buoys, however, may be disrupted by natural causes and buoy vandalism. In this paper, we formulate marine buoy placement as a clustering problem, and propose dropout k-means an…
A hybrid ML method improves ship response predictions across different sea conditions.
Study reveals trade dynamics in dry bulk shipping networks, highlighting their randomness and periodic changes.
Deep Learning is gaining traction with geophysics community to understand subsurface structures, such as fault detection or salt body in seismic data. This study describes using deep learning method for iceberg or ship recognition with synthetic aperture radar (SAR) data. Drifting icebergs pose a potential threat to ac…
This research proposes a method to hedge freight rate risk in shipping markets under model uncertainty.
This paper studies the market phenomenon of non-convergence between futures and spot prices in the grains market. We postulate that the positive basis observed at maturity stems from the futures holder's timing options to exercise the shipping certificate delivery item and subsequently liquidate the physical grain. In …
Image compression techniques reveal network structure for shipping box optimization.
Having the right assortment of shipping boxes in the fulfillment warehouse to pack and ship customer's online orders is an indispensable and integral part of nowadays eCommerce business, as it will not only help maintain a profitable business but also create great experiences for customers. However, it is an extremely …
We present a nonstandard hull construction for locally uniform groups in a spirit similar to Luxembourg's construction of the nonstandard hull of a uniform space. Our nonstandard hull is a local group rather than a global group. We investigate how this construction varies as one changes the family of pseudometrics used…
The paper characterizes sets with infinite hyperbolic convex hull volume.
In this work we use a proven model to study a dynamic duopolistic competition between an old and a new technology which, through improved technical performance - e.g. data transmission capacity - fight in order to conquer market share. The process whereby an old technology fights a new one off through own improvements …
The n-th hull of a union of curves in R^3 is the set of points with the property: Any plane passing through the point intersects the curves at least 2n times. The hull number u(L) of a link L is defined as the minimum number of non-empty hulls a representative of L can have. We show that the hull numbers of torus links…
The main result of this paper is a characterization of the minimal surface hull of a compact set in by sequences of conformal minimal discs whose boundaries converge to in the measure theoretic sense, and also by -dimensional minimal currents which are limits of Green currents supported by conf…
Designing and modifying complex hull forms for optimal vessel performances have been a major challenge for naval architects. In the present study, Principal Component Analysis (PCA) is introduced to compress the geometric representation of a group of existing vessels, and the resulting principal scores are manipulated …
Develops harmonic metrics for Hull-Strominger system stability.
Study analyzes correlation structure in two-factor Hull-White model for XVA calculations.
Study shows non-compact convex hulls in certain metric spaces.
Deep learning models generalize by extending decision boundaries outside the convex hull of training data.
The paper transforms a convex hull into a concave surface around a point cloud.
The integer hull of a polyhedron is the convex hull of the integer points contained in it. We show that the vertices of the integer hulls of a rational family of polyhedra of size O(n) have quasipolynomial coordinates. As a corollary, we show that the stable commutator length of elements in a surgery family is a ratio …
Study characterizes hulls and capacities on Riemannian manifolds, proving isoperimetric inequalities.
The convex hull of a set K in space consists of points which are, in a certain sense, "surrounded" by K. When K is a closed curve, we define its higher hulls, consisting of points which are "multiply surrounded" by the curve. Our main theorem shows that if a curve is knotted then it has a nonempty second hull. This pro…
New proofs given for space curves with totally positive torsion.
We introduce the notion of a ``projective hull'' for subsets of complex projective varieties, parallel to the idea of the polynomial hull in affine varieties. With this concept, a generalization of J. Wermer's classical theorem on the hull of a curve in is established in the projective setting. The projective hul…
Researchers link vertex algebras to non-Kähler solutions of the Hull-Strominger system.
Estimates convex hulls of smooth function images with error bounds.
Study finds knots with ideal length need not have smallest volume.
Study Hull-Strominger system and Anomaly flow on specific solvmanifolds.
New solutions found for complex structures on specific manifolds.
Study convex hulls of orbits for compact groups, defining new invariants related to polynomial degrees.
For a convex curve in an even-dimensional affine space we introduce a series of convex domains (called Young hulls), describe their structure and give a formulas fo the volume of the biggest of these domains. This paper is an attempt to generalize the classical isoperimetric inequality for the volume of the convex hull…
We study a hybrid tree-finite difference method which permits to obtain efficient and accurate European and American option prices in the Heston Hull-White and Heston Hull-White2d models. Moreover, as a by-product, we provide a new simulation scheme to be used for Monte Carlo evaluations. Numerical results show the rel…
Optimal algorithm finds if point is in convex hull of distributions.
We obtain an upper bound for the volume of the convex hull of a simple closed Frenet curve with exactly four vertices, i.e., four points of vanishing torsion, and lying on the boundary of its convex hull. Moreover, we show that the upper bound is attained when the curve intersects every plane in at most four points, a …
New flow defined to solve Hull-Strominger system, with estimates and convergence results.
Optimum in Convex Hulls (OCH) generalizes clinical trial results to broader populations.
Modeling vessel speed to balance efficiency and environmental risks in Arctic shipping.
We compute the algebraic hull of the Kontsevich-Zorich cocycle over any GL^+_2(R) invariant subvariety of the Hodge bundle, and derive from this finiteness results on such subvarieties.
Crypto markets show negative spillovers between chains, not positive co-movements.