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Gray-Box Optimization and the Vertex Coloring Problem

arXiv:2606.08128v1 Announce Type: new Abstract: Gray-box optimization is an approach for making some problem-specific information available to the algorithm while still relying on fitness information as the main guide to an optimum. This approach was shown to be beneficial in various combinatorial optimization tasks and neatly captures the continuum between fully black-box algorithms and tailored algorithms. In this work, we discuss different flavors of gray-box algorithms.

arXiv CS 1d ago

Generating 2-Gray codes for grand Motzkin paths and grand Dyck paths with air pockets in constant amortized time

Announce Type: cross Abstract: A grand Motzkin path with air pockets is a non-empty lattice path in the first and fourth quadrant of $\mathbb{Z}^2$, starting at the origin $(0,0)$, ending on the $x$-axis, and consisting of up-steps $(1, 1)$, horizontal steps $(1, 0)$, down-steps $(1, -k)$ where $k \geq 1$, and with no consecutive down-steps. A {grand Dyck path with air pockets} is a grand Motzkin path with air pockets that uses no horizontal steps. We present the first known 2-Gray codes for...

arXiv CS 5d ago

Andy Burnham seeks advice from Sue Gray on forming future Labour government

Andy Burnham has sought guidance from Baroness Sue Gray, Keir Starmer's former chief of staff, regarding a potential return to Westminster and a future role in government. The discussions focus on how a Labour government could be formed should Burnham succeed the prime minister. This move reflects the serious consideration senior Labour figures are giving to Burnham's potential political future.

The Guardian World 17d ago

Andy Burnham seeks advice from Sue Gray on forming future Labour government

Andy Burnham has sought guidance from Baroness Sue Gray, Keir Starmer's former chief of staff, regarding a potential return to Westminster and subsequent role in a future Labour government. The discussions reportedly covered how a new Labour administration could be formed. This move comes as internal succession discussions within the Labour Party intensify ahead of the Makerfield byelection.

The Guardian UK 17d ago

Systematic Gray-Box Identification Methodology for Voltage Source Converters

arXiv:2606.03567v1 Announce Type: new Abstract: This paper introduces a systematic gray-box identification framework for voltage-source converter models based solely on terminal time-series data. The proposed approach combines a physically informed white-box standard model with iterative time-domain calibration to estimate controller parameters that mimic the behavior of the black-box model in electromagnetic transient (EMT) simulations. Unlike conventional frequency-domain identification...

arXiv CS 7d ago

Architecturally Significant MLOps Guidelines for ML Model Integration and Deployment: a Gray Literature Review

Announce Type: new Abstract: Context. Despite the growing adoption of Machine Learning Operations (MLOps), teams often approach MLOps projects in an ad hoc manner due to the lack of consolidated architectural guidance. The community would benefit from a reference that synthesizes knowledge to inform the architectural design of MLOps systems, especially regarding the integration and deployment of ML models.

arXiv CS 2d ago

‘At my funeral I want people dancing in the aisles to Madness’: David Gray’s honest playlist

The singer knows all the words to Grease and channels Kenny Rogers at karaoke. But which classic musician does he liken to Picasso?The first song I fell in love withWhen I saw Night Boat to Cairo by Madness on Top of the Pops as an 11-year-old, something happened to me on a molecular level. There was something about the way they moved.

The Guardian Culture 3d ago

‘At my funeral I want people dancing in the aisles to Madness’: David Gray’s honest playlist

The singer knows all the words to Grease and channels Kenny Rogers at karaoke. But which classic musician does he liken to Picasso?The first song I fell in love withWhen I saw Night Boat to Cairo by Madness on Top of the Pops as an 11-year-old, something happened to me on a molecular level. There was something about the way they moved.

The Guardian UK 3d ago

Nine in hospital as ambulances and police race to Nottinghamshire primary school

Nine in hospital as ambulances and police race to Nottinghamshire primary school Police cars and ambulances descended on Jesse Gray Primary School in West Bridgford after receiving a call this afternoon and nine people were taken to hospital for treatment Nine people have been taken to hospital after emergency services were called to a primary school in Nottinghamshire. Police cars and ambulances descended on Jesse Gray Primary School in West Bridgford after receiving a call at around 2.17pm...

Daily Mirror 6d ago

Reflective Numeration Systems I: a Global Standpoint

arXiv:2606.03351v1 Announce Type: new Abstract: We present a framework to generalize the standard b-ary Gray code to get the k-bonacci ones obtained in [5] as well as many others by using theoretical tools that allow to make calculations on lists. We introduce the notion of Z-Gray product, from which we deduce sequences of lists of finite words avoiding a predefinite list Z of factors and which satisfy a power-associativity property as well a generalizations of the classical flipping digit...

arXiv CS 7d ago