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Record W2003075541 · doi:10.1785/0120070129

Reply to "Comment on 'Three Theorems of Earthquake Location' by Cinna Lomnitz" by Catherine Woodgold

2008· article· en· W2003075541 on OpenAlexaboutno aff
Cinna Lomnitz

Bibliographic record

VenueBulletin of the Seismological Society of America · 2008
Typearticle
Languageen
FieldComputer Science
TopicSeismology and Earthquake Studies
Canadian institutionsnot available
Fundersnot available
KeywordsSeismologyGeologyGeodesyGeographyMathematics

Abstract

fetched live from OpenAlex

Here is the gist of my three “theorems” (I hope the self-irony is appreciated). Suppose that we wish to locate Ottawa. A message is sent out from a point somewhere deep beneath Ottawa. It arrives first in New York and then in Moscow. What can we say about this observation? Let us bisect the arc New York–Moscow. We may state confidently that Ottawa is in the hemisphere that contains New York, not in the one that contains Moscow. How so? Because the great circle that bisects the arc New York–Moscow is the locus of all points that are equidistant from New York and Moscow. If some more observations are provided—Beijing, say, and Brisbane—we may repeat the operation sequentially as many times as there are pairs of observations. Theorem 1 says that Ottawa is contained in the intersection of all hemispheres that also contain the earliest of any pair of stations. This intersection is a topology; in fact, it is the smallest closed set containing Ottawa and can be made still smaller by adding more observations. But (here is the point of the exercise) we cannot determine the depth of the source located directly beneath Ottawa. The focal depth remains unconstrained. In functional analysis, we call such problems ill …

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Commentary · Consensus signal: none
Teacher disagreement score0.650
Threshold uncertainty score0.601

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.015
GPT teacher head0.216
Teacher spread0.201 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreCommentary

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2008
Admission routes1
Has abstractyes

Explore more

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