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Matrix factorization is a key component of collaborative filtering-based recommendation systems because it allows us to complete sparse user-by-item ratings matrices under a low-rank assumption that encodes the belief that similar users…

机器学习 · 统计学 2016-04-22 Aleksandr Y. Aravkin , Kush R. Varshney , Liu Yang

Quark and lepton flavor physics presents us with a basic question: Can we understand the pattern of masses and mixings of the known quarks and leptons, and how do present and proposed measurements help to advance that goal? Topics discussed…

高能物理 - 唯象学 · 物理学 2013-10-02 Jonathan L. Rosner

The quark and lepton mass matrices possess approximate flavor symmetries. Several results follow if the interactions of new scalars possess these approximate symmetries. Present experimental bounds allow these exotic scalars to have a weak…

高能物理 - 唯象学 · 物理学 2009-10-22 Aram Antaramian , Lawrence J. Hall , Andrija Rašin

We propose a new flavor paradigm for models with warped extra dimensions. The idea is to impose the minimal amount of flavor protection to make warped models compatible with all current flavor and electroweak precision constraints. We…

高能物理 - 唯象学 · 物理学 2009-01-08 Jose Santiago

Flavour physics plays a central role in the search for physics beyond the Standard Model, posing fundamental questions whose answers may point to new physics scales far above the electroweak scale. The flavour structure of the Standard…

高能物理 - 唯象学 · 物理学 2025-08-07 Wolfgang Altmannshofer , Peter Stangl

It is argued taking into account the observed mass spectra of the leptons and quarks that the phenomenon of flavor mixing is intimately related to the mass spectra. We discuss a particularly interesting way to describe the flavor mixing…

高能物理 - 唯象学 · 物理学 2007-05-23 Harald Fritzsch

In view of the observed strong hierarchy of the quark and lepton masses and of the flavor mixing angles it is argued that the description of flavor mixing must take this into account. One particular interesting way to describe the flavor…

高能物理 - 唯象学 · 物理学 2007-05-23 Harald Fritzsch

The current status of flavored dark matter is reviewed. We discuss the main experimental constraints on models of flavored dark matter and survey some possible considerations which are relevant for the constructions of models. We then…

高能物理 - 唯象学 · 物理学 2015-06-16 Jennifer Kile

Recent improvements in natural language processing (NLP) and machine learning (ML) and increased mainstream adoption have led to researchers frequently discussing the "democratization" of artificial intelligence. In this paper, we seek to…

计算与语言 · 计算机科学 2024-10-08 Arjun Subramonian , Vagrant Gautam , Dietrich Klakow , Zeerak Talat

Flavour symmetries in the dark sector are a theoretically motivated and phenomenologically appealing concept. The dark matter particle can be stabilised with the help of flavour symmetries, without the need to introduce an additional…

高能物理 - 唯象学 · 物理学 2015-08-26 Monika Blanke

Flavour symmetries are fundamental tools in the search for an explanation to the flavour puzzle: fermion mass hierarchies, the neutrino mass ordering, the differences between the mixing matrices in the quark and lepton sector, can all find…

高能物理 - 唯象学 · 物理学 2014-11-12 Luca Merlo

We extend the standard model with two extra Higgs doublets. Making use of a symmetry principle, we present flavour symmetries based on cycle groups $Z_N$ that oblige each Higgs doublet to contribute to the mass of only one generation, thus…

高能物理 - 唯象学 · 物理学 2017-10-30 Nuno Rosa Agostinho , David Emmanuel-Costa , J. I. Silva-Marcos

We study modular symmetric quark flavor models without fine-tuning. Mass matrices are written in terms of modular forms, and modular forms in the vicinity of the modular fixed points become hierarchical depending on their residual charges.…

高能物理 - 唯象学 · 物理学 2023-03-29 Shota Kikuchi , Tatsuo Kobayashi , Kaito Nasu , Shohei Takada , Hikaru Uchida

What is the form of the neutrino mass matrix which governs the oscillations of the atmospheric and solar neutrinos? Features of the data have led to a dominant viewpoint where the mass matrix has an ordered, regulated pattern, perhaps…

高能物理 - 唯象学 · 物理学 2009-09-29 Lawrence Hall , Hitoshi Murayama , Neal Weiner

Proponents of participatory democracy praise Liquid Democracy: decisions are taken by referendum, but voters delegate their votes freely. When better informed voters are present, delegation can increase the probability of a correct…

综合经济学 · 经济学 2024-04-24 Victoria Mooers , Joseph Campbell , Alessandra Casella , Lucas de Lara , Dilip Ravindran

We show that the main features of the pattern of fermion masses and mixing can be expressed in terms of simple relations among weak-basis invariants. In the quark sector, we identify the weak-basis invariants which signal the observed…

高能物理 - 唯象学 · 物理学 2015-06-03 G. C. Branco , J. I. Silva-Marcos

Future high-precision flavor experiments may discover a pattern of deviations from the standard model predictions for flavor-changing neutral current processes. One of the interesting questions that can be answered then will be whether the…

高能物理 - 唯象学 · 物理学 2015-05-14 Gudrun Hiller , Yonit Hochberg , Yosef Nir

Problem of reliable democratic governance is critical for survival of any community, and it will be critical for communities powered with Artificial Intelligence (AI) systems upon developments of the latter. Apparently, it will be getting…

多智能体系统 · 计算机科学 2022-10-06 Anton Kolonin , Ben Goertzel , Cassio Pennachin , Deborah Duong , Marco Argentieri , Matt Iklé , Nejc Znidar

Liquid democracy is the principle of making collective decisions by letting agents transitively delegate their votes. Despite its significant appeal, it has become apparent that a weakness of liquid democracy is that a small subset of…

计算机科学与博弈论 · 计算机科学 2019-11-20 Paul Gölz , Anson Kahng , Simon Mackenzie , Ariel D. Procaccia

The origin of mass must lie in physics beyond the Standard Model. Dynamical electroweak symmetry breaking models like technicolor can generate masses for the W and Z bosons. Providing the large top quark mass and large top-bottom mass…

高能物理 - 唯象学 · 物理学 2007-05-23 Elizabeth H. Simmons