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Sum of Squares Submodularity

open access: yes
We introduce the notion of $t$-sum of squares (sos) submodularity, which is a hierarchy, indexed by $t$, of sufficient algebraic conditions for certifying submodularity of set functions. We show that, for fixed $t$, each level of the hierarchy can be verified via a semidefinite program of size polynomial in $n$, the size of the ground set of the set ...
Deza, Anna, Hall, Georgina
openaire   +1 more source

Functional network phenotypes of mild behavioural impairment: cognitive effects moderated by amyloid. [PDF]

open access: yesAlzheimers Res Ther
Ng KP   +10 more
europepmc   +1 more source

Psychosocial impact of COVID-19 pandemic on patients with solid malignancies and bone metastases (PsyCO-B): a multicentre prospective observational study. [PDF]

open access: yesJ Bone Oncol
Taurisano P   +14 more
europepmc   +1 more source

Correction: Granulomatous cellular signatures in nontuberculous and tuberculous mycobacterial infections. [PDF]

open access: yesFront Microbiol
Doratt BM   +8 more
europepmc   +1 more source

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