Shir Sivroni

Uphill graph topologies and degree-constrained realizations of posets

We define a family of topologies on graphs using degree-constrained reachability. Open sets are closed under paths of nondecreasing or strictly increasing vertex degree; for multigraphs, counting incident edges or distinct neighbours gives further variants. These topologies encod...

Benchmarking surrogate nulls for neural–choice dependence under drift and selection

Pre-stimulus decoding tests whether neural activity is associated with an upcoming choice, but drift and response-dependent trial inclusion complicate interpretation. We benchmark label-surrogate procedures using simulations and exploratory analyses of public Steinmetz and Intern...

A values-illustration definition of art, scored against a verbatim-grounded corpus

This is a short record, not a full paper. It states a definition of art, gives its provenance, and reports how well it fits a corpus of cases taken verbatim from the literature. The definition. “An object, action or product created or chosen deliberately to illustrate values.” Tw...

Measuring Definitions: When Is a Definition Good, and How Would We Know?

The meta-tagging project builds a field-neutral tagging layer over academic literature under one non-negotiable rule: every tag must quote an exact sentence from the paper itself. The corpus holds 538 records across 86 disciplines; a standing audit re-checked 18,416 evidence stri...

Measuring Definitions: When Is a Definition Good, and How Would We Know?

The meta-tagging project builds a field-neutral tagging layer over academic literature under one non-negotiable rule: every tag must quote an exact sentence from the paper itself. The corpus holds 538 records across 86 disciplines; a standing audit re-checked 18,416 evidence stri...