TRACK RECORD · UPDATED 1 NOVEMBER 2026

Fixes we have submitted to public numerical software

Every pull request and issue opened by the GERO account (kadyrbekovhamit-cyber) in other people's repositories. These cover statistics for clinical trials, credit-risk and model monitoring, pricing and portfolio analytics, tax and benefit models, and machine-learning runtimes. Statuses are read from the GitHub API at the update date; a pull request counts as merged only when a maintainer merged it.

32pull requests merged by maintainers
151submissions (99 pull requests, 52 issues)
46repositories
86still open

Authors: Xamit Kadirbekov and Daniyal Kadirbekov / GERO. AI tools (Claude) assist with search, reference calculations and drafting; every pull request discloses this, and every example is re-run against an independent reference before submission.

What a merge means here. A maintainer accepted the change into the project's main branch. It does not mean the fix has been released, and an open item is not a confirmed defect until the maintainers agree. Some maintainers fixed our reports with their own code; those appear as closed issues.

Work with us

We check the exact functions and settings your team relies on — survival analysis, rate and proportion intervals, scorecard statistics, drift metrics, option pricing — against exact arithmetic, published examples and R/SAS, and deliver a written report with reproducible tests and patches. Pilot: one library or workflow, 20 scenarios, indicative USD 3,000. Contact: kadyrbekovhamit@gmail.com.

By repository

onnx/onnx 18 submissions · 10 merged

#TypeTitleOpenedStatus
8423PRfix(reference): stabilize LogSoftmax and SoftmaxCrossEntropyLoss2026-09-06Merged 2026-09-21
8427PRfix(reference): use absolute values for LpNormalization2026-09-07Merged 2026-09-08
8434PRfix(reference): select OneHot values without arithmetic2026-09-08Merged 2026-09-29
8433PRfix(reference): exclude ignored NLLLoss targets from mean2026-09-08Merged 2026-09-29
8444PRfix(reference): support GatherElements subshapes2026-09-09Merged 2026-09-09
8443PRtest(reference): cover Unique unsorted negative axis2026-09-09Merged 2026-09-16
8441PRfix(reference): preserve infinite ReduceLogSumExp results2026-09-09Merged 2026-09-29
8439PRfix(reference): Honor normalization stash precision2026-09-09Merged 2026-09-09
8456PRFix ReferenceEvaluator ReduceMean finite-range overflow2026-09-13Merged 2026-10-24
8451PRdocs: correct Normalizer L1 and L2 formulas2026-09-13Merged 2026-09-16
8442PRfix(reference): handle BatchNormalization opset 9 modes2026-09-09Open
8450PRfix(reference): handle Normalizer inputs stably2026-09-12Open
8455PRfix(reference): stabilize ReduceL2 finite range2026-09-13Open
8454PRfix(reference): stabilize LpNormalization finite range2026-09-13Open
8452Issueai.onnx.ml::Normalizer MAX has conflicting semantics across spec, ReferenceEvaluator, and ONNX Runtime2026-09-13Open
8422IssueGroupNormalization docs reverse the channel/group divisibility condition2026-09-06Closed 2026-09-14
8440PRdocs(defs): fix GroupNormalization divisibility condition2026-09-09Closed 2026-09-14
8453PRfix(reference): exclude ignored NLLLoss targets from mean2026-09-13Closed 2026-09-13

domokane/FinancePy 20 submissions · 8 merged

#TypeTitleOpenedStatus
255PRHonor ex-dividend coupon flag in final bond period2026-09-09Merged 2026-09-12
254PRFix CALCULUS redemption in final ex-dividend period2026-09-09Merged 2026-09-12
261PRStabilize Barone-Adesi-Whaley pricing at zero rates2026-09-13Merged 2026-09-18
259PRHandle omitted Act/365L reference end date2026-09-13Merged 2026-09-18
258PRFix vector pricing for distinct option expiries2026-09-13Merged 2026-09-16
257PRStabilize mortgage repayments at zero and small rates2026-09-13Merged 2026-09-16
256PRUse face-scaled accrued interest in bond cash values2026-09-13Merged 2026-09-19
271PRFix cash-settled annuity count before swap start2026-09-20Merged 2026-09-22
260PRCorrect FX digital payout-currency valuation2026-09-13Closed 2026-09-18
262Issuecash_settled_pv01 skips a real payment when valued on/before effective date2026-09-14Closed 2026-09-22
266IssueDouble no-touch series truncation produces prices outside the cash-payment bounds2026-09-15Closed 2026-09-18
265IssueAdjusted-binomial support rounding produces negative probabilities and changes the mean2026-09-15Closed 2026-09-30
264IssueCIR zero_price: tiny volatility produces 2.24e96 instead of 0.688272026-09-15Closed 2026-10-24
263IssueMertonFirmMkt calibration changes when monetary inputs use different units2026-09-15Closed 2026-09-30
269IssueVasicek zero_price loses the small-positive-mean-reversion limit2026-09-16Closed 2026-09-30
268IssueBondAnnuity price and payment amounts depend on prior face requests2026-09-16Closed 2026-09-30
267IssueBondZero.modified_duration applies the basis-point conversion twice (factor 10,000)2026-09-16Closed 2026-09-18
270PRFix premature truncation in double no-touch pricing2026-09-17Closed 2026-09-18
272IssueFloating lookback calls overflow for finite low-volatility inputs2026-09-20Closed 2026-09-30
273IssueMertonJumpDiffusion loses positive option values when the initial Poisson weight underflows2026-09-23Closed 2026-09-30

statsmodels/statsmodels 6 submissions · 4 merged

#TypeTitleOpenedStatus
10552PRBUG: validate power solver roots and handle noncentral-t NaN tails2026-10-24Merged 2026-10-26
10551PRBUG: avoid overshooting Mantel-Haenszel continuity correction2026-10-24Merged 2026-10-25
10650PRBUG: Warn on unknown keyword arguments in PHReg2026-10-30Merged 2026-10-30
10648PRBUG: Make SurvfuncRight.quantile robust to rounding at exact ties2026-10-30Merged 2026-10-30
10649PRBUG: Use the total sample size in the Hall-Wellner band (SurvfuncRight.simultaneous_cb)2026-10-30Open
10660PRBUG: confint_poisson_2indep sqrtcc ratio ignores exposures (and uses crit instead of crit**2)2026-11-01Open

apple/swift-numerics 7 submissions · 2 merged

#TypeTitleOpenedStatus
345PRReplace nonexistent stochastic-rounding examples2026-09-04Merged 2026-09-10
348PRCorrect toNearestOrZero shift example2026-09-05Merged 2026-09-10
342IssueDouble.root(3125, 5) returns 5.0 + 1 ULP instead of exact 5.02026-09-03Closed 2026-09-10
344PRFix large-negative complex hyperbolic signs2026-09-04Closed 2026-09-10
343PRRemove obsolete stochastic rounding examples2026-09-04Closed 2026-09-11
347IssueComplex.cosh/sinh use wrong component signs for large negative real parts2026-09-05Closed 2026-09-10
346Issue`Complex.reciprocal` can be non-nil when reciprocal multiplication differs from direct division2026-09-05Closed 2026-09-10

dcajasn/Riskfolio-Lib 3 submissions · 2 merged

#TypeTitleOpenedStatus
267PRUse joint asset-factor historical prior in all augmented BL view modes2026-10-22Merged 2026-10-29
265PRFix BOP shrinkage target coefficient denominator2026-10-22Merged 2026-10-29
266PRSubtract rf from Bayesian Black–Litterman equilibrium returns2026-10-22Closed 2026-10-29

microsoft/onnxruntime 5 submissions · 1 merged

#TypeTitleOpenedStatus
32452PRFix float16 QuantizeLinear rounding on CPU2026-09-05Merged 2026-09-09
32576PRFix CPU ReduceMean finite-range overflow2026-09-13Open
32575PRFix CPU ReduceL2 finite-range handling2026-09-13Open
32574PRFix LpNormalization finite-range loss2026-09-13Open
32573PRFix Normalizer overflow and underflow2026-09-13Open

mlflow/mlflow 2 submissions · 1 merged

#TypeTitleOpenedStatus
26041PRFix `ndcg_at_k` document ID collisions2026-09-21Merged 2026-09-25
25965Issue[BUG] ndcg_at_k creates relevance through duplicate document-ID collisions2026-09-18Closed 2026-09-25

roniemartinez/amortization 2 submissions · 1 merged

#TypeTitleOpenedStatus
315PRfix: amortization amount for very small rates2026-09-27Merged 2026-09-28
314IssueSmall positive rates can cause cancellation or ZeroDivisionError2026-09-27Closed 2026-09-28

stefan-jansen/empyrical-reloaded 2 submissions · 1 merged

#TypeTitleOpenedStatus
124PRPreserve zero dispersion for constant Sharpe inputs2026-10-22Merged 2026-10-25
123IssueConstant nonzero returns can yield finite Sharpe ratios from rounding residue2026-10-22Closed 2026-10-25

apache/fineract 1 submissions · 1 merged

#TypeTitleOpenedStatus
6409PRFINERACT-2809: Correct nop to invert pmt2026-09-07Merged 2026-09-07

jacobgil/confidenceinterval 1 submissions · 1 merged

#TypeTitleOpenedStatus
17PRFix delta-method CIs for F1/precision/recall (covariance p*p.T, macro derivatives, macro F1 formula)2026-11-01Merged 2026-11-01

nntrainer/nntrainer 11 submissions · 0 merged

#TypeTitleOpenedStatus
4325IssueUINT4 affine dequantization throws before zero-point handling; type check uses output instead of input2026-09-03Open
4324IssueAutomatic UINT8 affine qparams use scale * min, causing silent 127.5 reconstruction error2026-09-03Open
4329Issue[Bug] Four implemented loss layers skip `loss_scale` in `calcDerivative`2026-09-04Open
4331PR[tensor] Fix unsigned affine quantization parameters2026-09-05Open
4332Issue[Bug] ReduceMean without axis throws instead of reducing non-batch dimensions2026-09-06Open
4333Issue[attention] Causal mask admits future values for rectangular scores and later chunks2026-09-07Open
4336IssueDivideLayer backward loses finite denominator gradients through float32 intermediate overflow/underflow2026-09-14Open
4337IssueSplitLayer width-axis full-prefill incremental execution omits channels after channel zero2026-09-15Open
4341IssueCentroidKNN assigns positive scores to unobserved classes, overriding exact centroid matches2026-09-19Open
4328IssueKLD calcDerivative mutates the stored label and alternates gradient sign2026-09-04Closed 2026-10-29
4326IssueFive unary layers discard chain-rule operations in calcDerivative2026-09-04Closed 2026-10-29

terence-lim/actuarialmath 11 submissions · 0 merged

#TypeTitleOpenedStatus
2PRFix UDD density at fractional ages2026-09-09Open
3Issuewhole_life_insurance variance squares the first moment twice2026-09-14Open
5IssueBeta lifetime density is constant and corrupts continuous insurance values2026-09-15Open
4IssueConstantForce.whole_life_insurance ignores benefit b for positive continuous moments2026-09-15Open
6IssueEndowment variance applies b² to moments that already include the benefits2026-09-19Open
7IssueContinuous Annuity.a_x ignores years since selection s2026-09-20Open
8IssueInsurance.A_x scales the survival endowment linearly in second moments2026-09-24Open
9IssueUniform shortcuts use the wrong conditioning age and reverse limited-life weights2026-09-29Open
10Issuewhole_life_annuity ignores benefit b when interest is zero2026-09-30Open
11IssueUniform.E_x rejects its VARIANCE selector before the Bernoulli branch2026-10-03Open
12PRAllow Uniform.E_x variance selector and zero-term variance2026-10-25Open

formulajs/formulajs 7 submissions · 0 merged

#TypeTitleOpenedStatus
264PRUse actual year fraction for DISC and PRICEDISC basis 12026-10-24Open
263PRCount working days before applying the reversed-date sign2026-10-24Open
262PRFix YEARFRAC calendar-day counting and basis 1/4 boundaries2026-10-24Open
261PRCorrect WEEKNUM weekday mappings and week-one offset2026-10-24Open
260PRCorrect complete-year and same-month YD calculations in DATEDIF2026-10-24Open
259PRReturn NUM when RATE exhausts its iterations without convergence2026-10-24Open
258PRIgnore null and undefined cells in statistical ranges2026-10-24Open

opencv/opencv 5 submissions · 0 merged

#TypeTitleOpenedStatus
30485PRcalib3d: scale RQ decomposition zero tolerances2026-10-23Open
30484PRcalib3d: center object coordinates for iterative PnP2026-10-23Open
30483PRcalib3d: normalize object coordinates before SQPnP2026-10-23Open
30482PRcalib3d: retain Rodrigues accuracy near zero and pi2026-10-23Open
30481PRcalib3d: preserve solvePnPRansac initial guesses across layout conversion2026-10-23Open

PyPortfolio/PyPortfolioOpt 4 submissions · 0 merged

#TypeTitleOpenedStatus
771PRHandle missing return observations explicitly in shrinkage and semicovariance2026-10-22Open
770PRApply fully-invested risk lower bound only to fully-invested portfolios2026-10-22Open
769PRFix excess-return inversion and singular fallback in BL weights2026-10-22Open
767PRFix lp_portfolio price alignment when ticker orders differ2026-10-22Open

yanomateus/loan-calculator 4 submissions · 0 merged

#TypeTitleOpenedStatus
16IssueIRR derivative factory crashes for one repayment and does not match its return polynomial2026-10-03Open
15IssueIOF grossup fails net-principal reconstruction for progressive and constant schedules2026-10-03Open
18PRFix IOF gross-up net reconstruction for progressive and constant schedules2026-10-25Open
17PRFix return polynomial derivative and single-payment IRR2026-10-25Open

Anexen/pyxirr 3 submissions · 0 merged

#TypeTitleOpenedStatus
77PRfix: preserve payment identity in first annuity-due period2026-09-09Open
76PRfix: preserve NL day-count additivity at leap-day boundaries2026-09-09Open
78IssueVector RATE returns unconverged iterates and fails at zero starting guesses2026-09-15Open

dinerojs/dinero.js 3 submissions · 0 merged

#TypeTitleOpenedStatus
889IssuetoDecimal accepts non-decimal scalar bases divisible by ten2026-09-06Open
891PRfix: reject non-decimal scalar bases in toDecimal2026-09-09Open
892Issueallocate can misallocate safe integers after an unsafe intermediate product2026-09-09Open

franciscogarate/pyliferisk 3 submissions · 0 merged

#TypeTitleOpenedStatus
16PRFix fractional adjustment for deferred monthly annuities2026-09-09Open
15PRFix tqxn deferred mortality interval calculation2026-09-09Open
17PRPreserve mortality assumptions in geometric annuities and insurance2026-09-14Open

CamDavidsonPilon/lifelines 2 submissions · 0 merged

#TypeTitleOpenedStatus
1709PRFix fixed-time comparison variance between event times2026-10-24Open
1715PRFix qth_survival_time / median off by one event when S(t) equals q exactly2026-10-30Open

casact/chainladder-python 2 submissions · 0 merged

#TypeTitleOpenedStatus
1491PR[FIX] Preserve off-grid incremental rate changes in ParallelogramOLF2026-10-16Open
1492Issue[BUG] Mid-month incremental rate changes disappear from monthly ParallelogramOLF2026-10-16Open

lballabio/QuantLib 2 submissions · 0 merged

#TypeTitleOpenedStatus
2794IssueZero-stddev asset ITM probabilities are wrong in Black/Bachelier helpers and cap/floor deltas2026-09-14Closed 2026-10-22
2797PRFix asset ITM probabilities at zero standard deviation2026-09-15Closed 2026-09-30

moment/luxon 2 submissions · 0 merged

#TypeTitleOpenedStatus
1831PRAnchor fractional month and quarter differences to the original start2026-10-25Open
1830PRFix Interval.count across skipped local midnights2026-10-25Open

OpenGamma/Strata 2 submissions · 0 merged

#TypeTitleOpenedStatus
2797IssuepriceAdjoint2 returns NaN Hessian at zero volatility away from ATM, breaking custom-provider extrapolation2026-09-18Open
2796IssueNormal implied volatility returns zero for a positive ATM price with initialNormalVol=02026-09-18Open

ranaroussi/quantstats 2 submissions · 0 merged

#TypeTitleOpenedStatus
578PRPreserve the sign of excess total returns in recovery_factor2026-10-16Open
577PRFix drawdown details missing a period that starts on the first observation2026-10-16Open

stefan-jansen/pyfolio-reloaded 2 submissions · 0 merged

#TypeTitleOpenedStatus
114PRTreat the starting capital as a peak in the drawdown table and underwater plot2026-11-01Open
113IssueDrawdown table and underwater plot ignore the starting capital as a peak (contradicts Max drawdown)2026-11-01Open

amphibian-dev/toad 1 submissions · 0 merged

#TypeTitleOpenedStatus
164PRFix PSI silently dropping bins that are empty in one sample, and IV ignoring the NaN group2026-11-01Open

andrewmurphy353/curo_python 1 submissions · 0 merged

#TypeTitleOpenedStatus
2IssueFortnightly payment dates collapse; Appendix J partial period uses 15 rather than 142026-10-05Open

apple/coremltools 1 submissions · 0 merged

#TypeTitleOpenedStatus
2901PRFix shared constant mutation in convolution bias fusion2026-10-16Open

darius-lesch/pyloan 1 submissions · 0 merged

#TypeTitleOpenedStatus
70Issue[BUG] Explicit annuity payment is overridden by final balloon payment in 0.7.22026-09-18Closed 2026-09-18

ethers-io/ethers.js 1 submissions · 0 merged

#TypeTitleOpenedStatus
5207PRfix: round negative FixedNumber values to nearest with ties up2026-10-25Open

guillermo-navas-palencia/optbinning 1 submissions · 0 merged

#TypeTitleOpenedStatus
431PRFix scorecard Wald p-values with class_weight (standard errors ~2x too small)2026-11-01Open

HKUDS/Vibe-Trading 1 submissions · 0 merged

#TypeTitleOpenedStatus
2140PRfix(volatility): Heston price wrong for short expiries (integral truncated at u=200)2026-11-01Open

ing-bank/popmon 1 submissions · 0 merged

#TypeTitleOpenedStatus
299PRfix: return p=0 for large KS scores (green light on strongest drift) and normalise counts in PSI/JSD2026-11-01Open

jrvarma/bond_pricing 1 submissions · 0 merged

#TypeTitleOpenedStatus
8Issueannuity_instalment ignores immediate_start (121 instead of 110 in a two-payment example)2026-09-23Closed 2026-09-27

LordZardeck/loan-schedule 1 submissions · 0 merged

#TypeTitleOpenedStatus
3PRFix multi-year actual/actual interest accrual2026-09-09Open

martineastwood/penaltyblog 1 submissions · 0 merged

#TypeTitleOpenedStatus
50Issuearbitrage_hedge: partial mode reports zero worst-case profit for stakes that lose 2002026-10-04Closed 2026-10-05

MikeMcl/decimal.js 1 submissions · 0 merged

#TypeTitleOpenedStatus
271PRFix log2 and log10 rounding across long guard-digit runs2026-10-25Open

moneyphp/money 1 submissions · 0 merged

#TypeTitleOpenedStatus
832PRFix allocation remainders for large amounts2026-09-05Open

NannyML/nannyml 1 submissions · 0 merged

#TypeTitleOpenedStatus
457PRFix extra 1/n in estimated Wasserstein distance (one value below reference min inflates W)2026-11-01Open

PoseLib/PoseLib 1 submissions · 0 merged

#TypeTitleOpenedStatus
217PRHandle rig-frame singularities in generalized and upright pose solvers2026-10-23Open

PSLmodels/Tax-Calculator 1 submissions · 0 merged

#TypeTitleOpenedStatus
3196PRAlign Schedule D and AMT calculations with current-law rules2026-10-25Closed 2026-10-26

pvlib/pvlib-python 1 submissions · 0 merged

#TypeTitleOpenedStatus
2923PRFix hour-angle and geometric event conversion on DST transition days2026-10-24Open

razorpay/go-financial 1 submissions · 0 merged

#TypeTitleOpenedStatus
49IssueRate: missing pmt factor in Newton derivative breaks cash-flow scale invariance2026-10-14Open

scipy/scipy 1 submissions · 0 merged

#TypeTitleOpenedStatus
26496PRBUG: stats: include numerically tied outcomes in exact tests2026-10-25Closed 2026-10-25