Eugen Soloviov
Trading-systems engineer
Trading-systems engineer building bots since 2017: cross-exchange arbitrage (connected up to 30 venues), cointegration-based pairs arbitrage across spot and futures, scalping, news and sentiment-driven strategies, trend algorithms, and portfolio management and balancing algorithms. Also builds sub-millisecond order execution, big-data warehouses, backtesting engines, AI agents, and trading interfaces (incl. open-source profitmaker.cc). Stack: JS/TS, Python, Rust/Zig/Go, DevOps, backend, frontend, architecture.
Articles
Unregelmäßige Zeit in Tick-Modellen: zeitkontinuierliche Codierungen vs. einfache Positionseinbettungen
Sequenzmodelle, die mit Tick-Daten gefüttert werden, gehen immer noch von regelmäßigen Abständen aus. Drei Möglichkeiten, einem Transformer mitzuteilen, wann tatsächlich ein Tick aufgetreten ist – kontinuierliche Codierung auf erlernbarer Zeitskala, latenter ODE-RNN-Zustand und delta_t als einfaches Merkmal – und die Ablation, die zwischen ihnen entscheidet.
Synthetische Kontrollmethoden zur Bewertung von Handelsstrategien
Diese Serie hat den Preis für den Auswahlweg falsch bewertet – DSR bewertet den Gewinner, PBO bewertet die Suche. Beides ist nicht verwirrend: die Strategie, die Geld verdiente, weil sich die Volatilität in der Woche, in der Sie sie einsetzten, verdoppelte. Die synthetische Kontrollmethode erstellt ein gewichtetes Kontrafaktum aus einem Spenderpool unberührter Instrumente und liefert Ihnen ein Falsifikationskriterium und einen Placebo-p-Wert.
Scoring Probabilistic Forecasts: CRPS, PIT Calibration, and DeepAR
How to evaluate a predictive distribution honestly — CRPS as a proper scoring rule, the PIT histogram as a calibration diagnostic, and DeepAR sampling in GluonTS.
Physikinformierte neuronale Netze für die Preisgestaltung von Optionen
Einsetzen der Heston-, Free-Boundary- und Jump-Diffusion-Pricing-PDEs in einen neuronalen Netzwerkverlust – das Log-Price-Residuum, der Mixed-Partial-Autograd-Trick und was noch gemessen werden muss.
PCMCI: Causal Discovery in Multivariate Crypto Time Series
How PCMCI's two-stage MCI test recovers directed causal links between crypto assets where correlation and bivariate Granger cannot — the construction, the tigramite pipeline, and the real-data study it still needs.
Order Flow Imbalance: The Cont-Kukanov-Stoikov Event Decomposition
Turning raw book updates into a signed flow quantity: the CKS event decomposition, multi-level OFI with PCA reduction, and Lee-Ready trade classification — plus an honest accounting of what the headline R-squared actually measures.
Neural ODEs: Does Continuous Time Beat a Delta-Time Feature?
Neural ODEs, Neural SDEs and continuous normalizing flows for irregularly-sampled market data — and the one ablation that decides whether continuous dynamics are worth their solver cost.
Multi-Task Learning for Simultaneous Price, Volume, and Volatility Prediction
Does jointly predicting return, volume, and volatility actually help? Measuring loss-balancing schemes and diagnosing negative transfer through gradient cosine similarity — with a classical baseline and purged walk-forward folds.
Model Pruning for Low-Latency Trading Inference
Magnitude and structured pruning, the Lottery Ticket Hypothesis, movement pruning, distillation and 2:4 sparsity — the methods behind shrinking a trading model, and what still has to be measured before any of it ships.
Updating the Volume Curve Intraday: Does Adaptive Forecasting Actually Help?
Our VWAP article shipped a static, weekly-refit volume curve and called the forecaster the weakest link. This is the follow-up: a Bayesian intraday updater run against the same 500-parent BTCUSDT harness, with the IS delta conditioned on realized curve error.
Koopman Operators and DMD: Do Market Modes Survive Out-of-Sample?
Dynamic Mode Decomposition fits a linear operator to nonlinear market dynamics. The only question that matters: do the fitted modes persist from one window to the next, and does the rolling spectral radius lead realised volatility? Here is the measurement protocol and the code to run it.
Knowledge Distillation: Compressing Trading Models for Low-Latency Deployment
The blog's standing answer to the accuracy-vs-latency tension is a two-stage fast/slow split. Distillation is a different answer: train one small model to mimic the ensemble. The KD loss, temperature, born-again nets, early exits for a variable latency budget, and the distill-to-FPGA pipeline — plus the measurements that would decide whether it beats the two-stage split.