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For $v\equiv 1$ or 3 (mod 6), maximum partial triple systems on $v$ points are Steiner triple systems, STS($v$)s. The 80 non-isomorphic STS(15)s were first enumerated around 100 years ago, but the next case for Steiner triple systems was…

Combinatorics · Mathematics 2017-10-27 Fatih Demirkale , Diane Donovan , Mike Grannell

We show that, regardless of the dimension of the Hilbert space, there exists no set of rays revealing state-independent contextuality with less than 13 rays. This implies that the set proposed by Yu and Oh in dimension three [Phys. Rev.…

Quantum Physics · Physics 2016-09-12 Adán Cabello , Matthias Kleinmann , José R. Portillo

In this article, we show the existence of large sets $\operatorname{LS}_2[3](2,k,v)$ for infinitely many values of $k$ and $v$. The exact condition is $v \geq 8$ and $0 \leq k \leq v$ such that for the remainders $\bar{v}$ and $\bar{k}$ of…

Combinatorics · Mathematics 2025-10-02 Michael Kiermaier , Reinhard Laue , Alfred Wassermann

We say that a set system $\mathcal{F}$ is $k$-completely hyperseparating if for any vertex $v$, there are at most $k$ sets in $\mathcal{F}$ with intersection $\{v\}$. We determine the minimum size of such set systems on an $n$-element…

Combinatorics · Mathematics 2026-03-10 Dániel Gerbner

Deep networks are frequently tuned to novel tasks and continue learning from ongoing data streams. Such sequential training requires consolidation of new and past information, a challenge predominantly addressed by retaining the most…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Subarnaduti Paul , Manuel Brack , Patrick Schramowski , Kristian Kersting , Martin Mundt

We develop fast spectral algorithms for tensor decomposition that match the robustness guarantees of the best known polynomial-time algorithms for this problem based on the sum-of-squares (SOS) semidefinite programming hierarchy. Our…

Machine Learning · Computer Science 2017-06-28 Tselil Schramm , David Steurer

The structure of on-shell and off-shell 2D, (4,4) supersymmetric scalar multiplets is investigated, in components and in superspace. We reach the surprising result that there exist eight {\underline {distinct}} on-shell versions and an even…

High Energy Physics - Theory · Physics 2009-10-28 S. James Gates , Sergei V. Ketov

We prove that, for every positive integer k, there is an integer N such that every 4-connected non-planar graph with at least N vertices has a minor isomorphic to K_{4,k}, the graph obtained from a cycle of length 2k+1 by adding an edge…

Combinatorics · Mathematics 2010-11-11 Guoli Ding , Bogdan Oporowski , Robin Thomas , Dirk Vertigan

It is proven that any hidden variable theory of the type proposed by Meyer [Phys. Rev. Lett. {\bf 83}, 3751 (1999)], Kent [{\em ibid.} {\bf 83}, 3755 (1999)], and Clifton and Kent [Proc. R. Soc. London, Ser. A {\bf 456}, 2101 (2000)] leads…

Quantum Physics · Physics 2009-07-28 Adan Cabello

We present a novel coreset construction algorithm for solving classification tasks using Support Vector Machines (SVMs) in a computationally efficient manner. A coreset is a weighted subset of the original data points that provably…

Data Structures and Algorithms · Computer Science 2017-11-13 Cenk Baykal , Lucas Liebenwein , Wilko Schwarting

We propose two novel model architectures for computing continuous vector representations of words from very large data sets. The quality of these representations is measured in a word similarity task, and the results are compared to the…

Computation and Language · Computer Science 2013-09-10 Tomas Mikolov , Kai Chen , Greg Corrado , Jeffrey Dean

Speaker embeddings are widely used in speaker verification systems and other applications where it is useful to characterise the voice of a speaker with a fixed-length vector. These embeddings tend to be treated as "black box" encodings,…

Sound · Computer Science 2025-10-21 Mark Huckvale

A classical theorem of Spencer shows that any set system with n sets and n elements admits a coloring of discrepancy O(n^1/2). Recent exciting work of Bansal, Lovett and Meka shows that such colorings can be found in polynomial time. In…

Discrete Mathematics · Computer Science 2016-04-13 Thomas Rothvoss

Choosing an appropriate tokenization scheme is often a bottleneck in low-resource cross-lingual transfer. To understand the downstream implications of text representation choices, we perform a comparative analysis on language models having…

Computation and Language · Computer Science 2023-10-13 Md Mushfiqur Rahman , Fardin Ahsan Sakib , Fahim Faisal , Antonios Anastasopoulos

The weight enumerators (quant-ph/9610040) of a quantum code are quite powerful tools for exploring its structure. As the weight enumerators are quadratic invariants of the code, this suggests the consideration of higher-degree polynomial…

Quantum Physics · Physics 2007-05-23 Eric M. Rains

Counting interior-disjoint empty convex polygons in a point set is a typical Erd\H{o}s-Szekeres-type problem. We study this problem for 4-gons. Let $P$ be a set of $n$ points in the plane and in general position. A subset $Q$ of $P$, with…

Computational Geometry · Computer Science 2018-07-27 Ahmad Biniaz , Anil Maheshwari , Michiel Smid

Disentangling uncorrelated information in speech utterances is a crucial research topic within speech community. Different speech-related tasks focus on extracting distinct speech representations while minimizing the affects of other…

Computation and Language · Computer Science 2023-09-26 Siqi Zheng , Luyao Cheng , Yafeng Chen , Hui Wang , Qian Chen

Consider an irreducible finite Coxeter system. We show that for any nonnegative integer n the sum of the nth powers of the Coxeter exponents can be written uniformly as a polynomial in four parameters: h (the Coxeter number), r (the rank),…

Combinatorics · Mathematics 2012-08-13 John M. Burns , Ruedi Suter

We obtain new bounds for (a variant of) the Furstenberg set problem for high dimensional flats over $\mathbb{R}^n$. In particular, let $F\subset \mathbb{R}^n$, $1\leq k \leq n-1$, $s\in (0,k]$, and $t\in (0,k(n-k)]$. We say that $F$ is a…

Classical Analysis and ODEs · Mathematics 2025-03-14 Paige Bright , Manik Dhar