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Record W1998147618 · doi:10.5555/3191835.3191958

Adjustments to propensity score matching for network structures

2014· article· en· W1998147618 on OpenAlexaff
Masoud Charkhabi

Bibliographic record

VenueAdvances in Social Networks Analysis and Mining · 2014
Typearticle
Languageen
FieldMathematics
TopicAdvanced Causal Inference Techniques
Canadian institutionsCanadian Imperial Bank of Commerce (Canada)
Fundersnot available
KeywordsPropensity score matchingComputer scienceInferenceMetric (unit)Matching (statistics)Data miningObservational studyRobustness (evolution)Machine learningArtificial intelligenceEconometricsStatisticsMathematicsEngineering

Abstract

fetched live from OpenAlex

Causal inference from observational data rely on similar treatment and control groups to isolate for variation, in addition to adjustments in estimates to account for the remaining uncontrollable variation. Propensity score matching and statistical inference are established tools to achieve for these two requirements respectively. Network structures in the underlying data of the experiment challenge this convention since they question assumptions of independent observations and increase the risk of unobserved variables. In this paper we approach the problem with the intent of preserving propensity score matching and inference, while accommodating network information. Multiple experiments are re-evaluated with network information. All experiments were intended to create organic growth through referrals in a financial services business. We offer first, the Propensity Score Layout; a rapid visualization approach to scan data from multiple studies that potentially may require re-evaluation due to network structure. Second, the Propensity Score Network Risk; a metric that captures the extent to which network structure interferes with the treatment of the experiment. And third; variables constructed from network information that to our surprise estimate the propensity score significantly better than node attributes. We also present a set of interesting problems for researchers in academia and industry. To the best of our knowledge network methods have not been studied thoroughly in this domain. We feel the combination of technique, results and domain are novel.

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)0.001
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: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.673
Threshold uncertainty score0.743

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
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 head0.090
GPT teacher head0.395
Teacher spread0.305 · 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 designTheoretical or conceptual
Domainnot available
GenreEmpirical

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

Citations3
Published2014
Admission routes1
Has abstractyes

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