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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,932 papers · 148 categories

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0111 · Jul 201919922001200920172026
2 results for “optics-based”
Don't take it lightly: Phasing optical random projections with unknown operatorscs.LG

We recover phase from intensity measurements using optics-based random projections.

problem Recovering phase from intensity measurements with unknown transmission matrix.
method Our method leverages conjugation of rows in the unknown matrix and interference with reference signals to cast the problem as a Euclidean distance geometry.
result We accurately recover the missing phase and mitigate quantization and sensitivity effects.
phase retrievalrandom projectionsoptics-basedEuclidean distance geometryquantization
2019-07-03abs ↗pdf ↗
Fusing Optical and SAR time series for LAI gap filling with multioutput Gaussian processeseess.IV

New method fuses optical and SAR data to fill LAI gaps during cloudy periods.

problem Cloudy periods mask key crop growth stages, leading to unreliable yield predictions.
method Multi-Output Gaussian Process (MOGP) regression for fusing Sentinel-1 RVI and Sentinel-2 LAI time series.
result MOGP provides improved LAI estimations even during cloudy periods, especially for long gaps.
cloudy periodscrop growthyield predictionsMOGPSentinel-1
2020-12-05abs ↗pdf ↗