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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.

168,786 papers · 148 categories

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35810 · Sep 201919922001200920172026
48 results for DA bimodules

Researchers link tangle invariants for Khovanov and knot Floer homologies.

problem Relating tangle invariants for Khovanov and knot Floer homologies.
method Constructing algebraic DA bimodules for tangles and open braids, showing homotopy equivalence to Ozsvath-Szabo bimodules.
result Homotopy equivalence of DA bimodules for tangles and knot Floer homology.

We investigate a relationship between Ozsváth and Szabó's bordered theory and the algebras and bimodules constructed by Khovanov-Seidel. Specifically, we show that (a variant of) a special case of Ozsváth-Szabó's algebras has a quotient which is isomorphic to the Khovanov-Seidel quiver algebra with coefficients in $\ma…

2016-05-25abs ↗pdf ↗

In this paper we introduce a chain complex C1±1(D)C_{1 \pm 1}(D) where D is a plat braid diagram for a knot K. This complex is inspired by knot Floer homology, but it the construction is purely algebraic. It is constructed as an oriented cube of resolutions with differential d=d_0+d_1. We show that the E_2 page of the assoc…

2018-10-31abs ↗pdf ↗

We relate decategorifications of Ozsváth-Szabó's new bordered theory for knot Floer homology to representations of Uq(gl(11))\mathcal{U}_q(\mathfrak{gl}(1|1)). Specifically, we consider two subalgebras Cr(n,S)\mathcal{C}_r(n,\mathcal{S}) and Cl(n,S)\mathcal{C}_l(n,\mathcal{S}) of Ozsváth- Szabó's algebra B(n,S)\mathcal{B}(n,\mathcal{S}), an…

2016-11-23abs ↗pdf ↗

We survey Ozsváth-Szabó's bordered approach to knot Floer homology. After a quick introduction to knot Floer homology, we introduce the relevant algebraic concepts (A\mathcal{A}_\infty-modules, type DD-structures, box tensor, etc.), we discuss partial Kauffman states, the construction of the boundary algebra, and ske…

2018-11-18abs ↗pdf ↗

New algebras and maps defined in knot Floer homology for trivalent vertices.

problem Categorification of knot Floer homology for trivalent vertices.
method Definition of new algebras, local bimodules, and bimodule maps in bordered knot Floer homology.
result Categorification of representations of U_q(gl(1|1)^-).

The paper solves a problem in constructing a bicategory of algebra bundles.

problem Defining a well-defined composition law for algebra bundles over a smooth manifold.
method Developed a complete solution for a bicategory of algebra bundles, addressing non-invertible bimodules and non-semisimple algebras.
result A complete solution to the problem of constructing a bicategory of algebra bundles.

SFS-DA method statistically tests FS reliability under domain adaptation.

problem Feature selection reliability under domain adaptation with limited target data.
method Selective Inference framework to control false positive rate and enhance true positive rate.
result SFS-DA method controls FPR below a pre-specified level αα (e.g., 0.05) while maximizing true positive rate.

We discuss a relationship between Khovanov- and Heegaard Floer-type homology theories for braids. Explicitly, we define a filtration on the bordered Heegaard-Floer homology bimodule associated to the double-branched cover of a braid and show that its associated graded bimodule is equivalent to a similar bimodule define…

2011-07-14abs ↗pdf ↗

Paper proposes MCC to reduce class confusion for versatile DA.

problem Class confusion in DA methods limits their performance across different scenarios.
method Introduces Minimum Class Confusion (MCC) loss function to handle various DA scenarios.
result MCC significantly improves performance on diverse DA scenarios, including Multi-Source and Multi-Target DA.

New DA method CIRM outperforms existing methods under structural causal model assumptions.

problem Improving prediction performance in domain adaptation with perturbed source and target data.
method Theoretical framework based on structural causal models to analyze and compare DA methods.
result CIRM method outperforms existing methods when covariates and label distributions are perturbed in target data.

Recently, Ozsváth and Szabó introduced some algebraic constructions computing knot Floer homology in the spirit of bordered Floer homology, including a family of algebras B(n) and, for a generator of the braid group on n strands, a certain type of bimodule over B(n). We define analogous bimodules for singular crossings…

2019-04-24abs ↗pdf ↗

New 4-manifold invariant defined from trisection diagrams.

problem Defining a new 4-manifold invariant from trisection diagrams.
method Algebraic data from bimodule categories and spherical fusion categories, described diagrammatically.
result Includes Hopf algebraic invariants and modular fusion category invariants.

Data augmentation (DA) is commonly used during model training, as it significantly improves test error and model robustness. DA artificially expands the training set by applying random noise, rotations, crops, or even adversarial perturbations to the input data. Although DA is widely used, its capacity to provably impr…

2019-05-08abs ↗pdf ↗

New stable homotopy refinement of quantum annular Khovanov homology.

problem Quantum topological Hochschild homology and annular Khovanov spectra.
method Introducing quantum topological Hochschild homology (qTHH) and constructing a new stable homotopy refinement of quantum annular Khovanov homology.
result The new stable homotopy refinement agrees with qTHH of spectral Chen-Khovanov tangle bimodules and recovers earlier work.

Domain adaptation (DA) is an important and emerging field of machine learning that tackles the problem occurring when the distributions of training (source domain) and test (target domain) data are similar but different. Current theoretical results show that the efficiency of DA algorithms depends on their capacity of …

2016-10-14abs ↗pdf ↗

Paper proves Koszul duality for weighted A-infinity algebras.

problem Koszul duality for weighted A-infinity algebras.
method Constructs new box tensor product for weighted A-infinity bimodules and verifies correspondence between maps and bimodules.
result Proves Koszul duality result between weighted A-infinity algebras.

OMD and DA perform similarly in static settings but OMD is inferior under dynamic learning rates.

problem Proving and understanding the performance difference between OMD and DA under dynamic learning rates.
method Introducing stabilization to OMD and modifying its convergence analysis.
result OMD with stabilization and DA have the same performance guarantees under dynamic learning rates.

For machine learning task, lacking sufficient samples mean the trained model has low confidence to approach the ground truth function. Until recently, after the generative adversarial networks (GAN) had been proposed, we see the hope of small samples data augmentation (DA) with realistic fake data, and many works valid…

2019-05-21abs ↗pdf ↗

GGDA simplifies DA for large models, speeding up attribution by up to 50x.

problem Computational intensity of existing DA methods limits their applicability to large-scale models.
method Generalized Group Data Attribution (GGDA) framework attributing to groups of training points.
result GGDA achieves up to 50x speedups over standard DA methods while maintaining effectiveness.

The paper studies geometric properties of soliton surfaces using an extended Darboux frame field.

problem Geometric analysis of soliton surfaces associated with the Betchov-Da Rios equation.
method Derivative formulas of an extended Darboux frame field, geometric invariants, curvature calculations.
result Construction of curvature ellipse and Wintgen ideal soliton surfaces.

Paper tackles multi-source domain adaptation for regression.

problem Predicting HDL cholesterol levels using gut microbiome data.
method Two-step procedure: 1) Extend a flexible single-source DA algorithm for classification to regression. 2) Augment with ensemble learning for multi-source DA.
result Consistent improvement in HDL cholesterol level prediction performance over existing methods.

Bordered Heegaard Floer homology is a three-manifold invariant which associates to a surface F an algebra A(F) and to a three-manifold Y with boundary identified with F a module over A(F). In this paper, we establish naturality properties of this invariant. Changing the diffeomorphism between F and the boundary of Y te…

2010-03-02abs ↗pdf ↗

In dialogues, an utterance is a chain of consecutive sentences produced by one speaker which ranges from a short sentence to a thousand-word post. When studying dialogues at the utterance level, it is not uncommon that an utterance would serve multiple functions. For instance, "Thank you. It works great." expresses bot…

2019-09-02abs ↗pdf ↗

There are few papers about the consumption pattern of the Portuguese wine, using econometrics techniques. This work, pretend to analyze the consumers behavior of the wine produced in Portugal, determining the demand equation with panel data methods. There were used statistical data available in the Alentejo Regional Wi…

2012-12-28abs ↗pdf ↗

The paper proves unique Levi-Civita connections on noncommutative forms.

problem Existence and uniqueness of Levi-Civita connections on noncommutative differential forms.
method Combining Hilbert module and algebraic techniques, proving conditions for existence and uniqueness of Hermitian torsion-free connections.
result Existence and uniqueness of Levi-Civita connections on θ-deformations of compact Riemannian manifolds.

We define and study the theory of derivation-based connections on a recently introduced class of bimodules over an algebra which reduces to the category of modules whenever the algebra is commutative. This theory contains, in particular, a noncommutative generalization of linear connections. We also discuss the differe…

1995-03-31abs ↗pdf ↗