d4-conf-aaai-2013-0068

· ? (d4-conf-aaai-2013-0068)

no mirror
paperd4-conf-aaai-2013-0068
authors—
venue?
filed underunclassified
judged bygpt-6-luna / xhigh (triple__luna__xhigh__c6r1)
judge confidencehigh
authors would recognise itno

Why no mirror

The paper reports empirical findings and describes market designs, but contains no numbered theorem, lemma, corollary, or proposition asserting an algorithmic or hardness result. A continuous model of manipulation or market informativeness would introduce a new computational problem rather than mirror a computational result proved here.

fails bit a — no named computational result to mirror

What the mirror covers

No result is covered by a continuous mirror. The paper's findings about price predictivity, insider information, manipulation, and market-maker comparisons are empirical.

The case FOR (proponent)

I don’t find a qualifying anchor in this paper. It contains no numbered theorem, lemma, corollary, or proposition asserting a computational result such as polynomial-time solvability or hardness. Its main findings—price predictivity, insider information, limited evidence of manipulation, and differences between LMSR and BMM—are empirical. The paper describes market-making algorithms, but does not give a numbered complexity result about the underlying problem.

A large course could provide a plausible population regime: students might be grouped by their information and trading or rating behavior, with each group’s mass representing its share of the class. But a computational question about optimizing trades or ratings in that model would be a new formalization, not a continuous mirror of a named result in this paper. So there are no anchor-specific continuous problems to state here.

The case AGAINST (opponent, writing after the proponent)

The attached case offers no continuous question anchored to a result, so there is no anchor to defeat. Its main findings are empirical: prices predict later ratings, in-class traders contribute information, manipulation appears limited, and BMM prices were more stable than LMSR prices. The paper describes market-making algorithms, but gives no computational problem with a complexity result. That is the decisive gap for a continuous *mirror*.

The strongest rescue is to formalize manipulation as a minimum-mass control problem: given a distribution of students by rating eligibility, information, trading budget, and action costs, find the least mass whose reports and trades can move a market to a target. A large online course could make that population plausible; treating prices or costs as type-level properties is no objection. But the paper reports observed manipulation and asks whether it occurs. It does not define or analyze an optimal attack problem. That formulation may be a worthwhile new project, but it is not a continuous version of a computational result in this paper.

The same distinction applies to optimizing market-maker parameters or modeling how much insider mass makes prices informative. Those could be useful questions, but they introduce computational objectives absent from the study. So the case against a mirror is strong for this paper, though it cannot rule out a separate computational project on robust instructor-rating markets.

The adversarial triple: the proponent anchors on up to three named results; the opponent sees that case and must defeat every anchor; the judge decides which case convinced it. These are the pipeline’s own outputs, generated by tools/triple_run.py — no human edited them. The paper’s own text is not reproduced here beyond the quoted statement above.