Barış Arslan

Education

Work Experience

• Encoded 14 compliance rules from Turkish e-invoicing and tax regulation into a Python validation engine that extracts supporting evidence from each document into structured reports
• Developed a statistical anomaly layer scoring each invoice against the counterparty historical distribution using median, interquartile range, and percentile rank, with minimum-sample thresholds and strict look-ahead exclusion
• Validated the engine against a controlled test set and documented the methodology, assumptions, and known limitations
• Presented the engine to finance management, which requested it for internal use
• Rotated through the accounts payable cycle, covering invoice control, payment lists, expense posting, intercompany transactions, and import invoices in Excel

Projects

• Simulated 270 million random-play piece duels in Julia across 27 board sizes, establishing that the classical piece values hold only near the 8x8 regime and diverge as board geometry scales
• Resolved the circularity of scoring a piece against opponents of unequal strength with an opponent-weighted win rate, equivalent to one iteration of eigenvector centrality
• Quantified sampling error by repeating each sweep 10 times at 100,000 duels per matchup and reporting standard deviations as confidence bands

• Built an unattended Python pipeline ingesting 11,400 finance articles from 8 sources on a 3-hour cycle and publishing 4,900 over 4 months, backed by a single SQLite database
• Diagnosed silent extraction failures by profiling input against output length per source in SQL, then set a 500 character quality floor that retracted 552 articles, 11 percent of the published corpus
• Migrated 4,943 published URLs off Ghost to a Jinja2 static generator with no losses, recovering 44 URLs the platform had silently renamed by reconciling generated paths against live slugs