Jan 2020 – Nov 2022 · 2 yrs 10 mos · Mclean, Virginia

• Lead data search and discovery of financial data within the enterprise. Design and develop search layer, index management and automation, application development, RESTful APIs, methods for search relevance and evaluation, personalization of search results and recommendations. Collaborate with other teams across the search stack and other API clients across the enterprise. Mentor junior engineers and conduct PR reviews. Collaborate with search PM on feature development priorities. Conduct talent management and performance reviews.

Jan 2019 – Jan 2020 · 1 yr · Mclean, Virginia

May 2015 – Dec 2018 · 3 yrs 7 mos

• EBSCO is one of the world's largest providers of e-journals, e-books, research databases, and discovery services for academia, industry, and government. We handle over 10 million searches daily, serving over 100 million pages. Our engineering team develops the engine that powers the search, offered as a 7x24x365 service.

May 2011 – Apr 2015 · 3 yrs 11 mos · Washington D.C. Metro Area

• Member of Data Analytics Department.
• Design and develop analytical solutions to address business needs of customers. Designed and developed a prototype network visualization, integration and analysis tool for fuel industry to support government analysts. Designed and developed a news analytics prototype with components that included document classification, document clustering, topic modeling, automated text summarization, information extraction, and information retrieval. Developed web data mining solutions. Performed exploratory data analysis on customer data to summarize main characteristics and highlight anomalies. Created dynamic and interactive graphs using D3.js and other JavaScript libraries.
• Wrote research proposals for (a) text-similarity search over very large datasets, and (b) network-analysis-based anomaly detection. Performed research on multivariate time series analysis involving both continuous and categorical variables.
• o Created and taught a text mining course at MITRE Institute (April 2012 and June 2013).
• o Created and taught a tutorial on social network analysis to project team (January 2014).

May 2010 – May 2011 · 1 yr · Washington D.C. Metro Area

• Provided consulting support regarding computational techniques and systems used in multi-cultural name-matching. Wrote sections on computational aspects of name-matching in technical white papers submitted as part of a proposal for a government contract. Participated in the oral presentation of said proposal to the customer.

Oct 2007 – Nov 2010 · 3 yrs 1 mo

• Turn2Live Lead Natural Language Developer October 2008 – November 2010
• Designed and developed a mood-based information retrieval capability for a web-based live music search engine. Employed data mining and machine learning techniques to analyze user feedback to achieve high-accuracy event recommendation. Developed back-end code to enable data feed processing using various data formats. Designed and developed data model extensions and back-end code to enable search and recommendation capabilities for other kinds of entertainment events. Implemented semantic (RDFa) tagging of event data pages to enable major search engines to provide enhanced search results.
• Nehmedia Computational Linguist October 2007 – February 2008
• Developed corpus-based solutions for web search optimization. Applied text mining techniques to the generation of long-tail queries. Used data clustering algorithms and techniques to enable taxonomy/ontology learning from raw natural language corpora.

Oct 1998 – Nov 2006 · 8 yrs 1 mo

• Project Manager July 2006 – November 2006
• Collaborative Sense Making: Interacted with the customer, wrote technical status reports, and gave oral presentation of project status and achievements.
• Lead Programmer April 2001 – November 2006
• Collaborative Sense Making: Designed and developed novel algorithms for semantic similarity of concepts by combining statistical and ontology-based semantic similarity measures. Integrated said algorithms into a prototype system for automated, real-time identification of collaboration opportunities between intelligence analysts.
• Semantic Knowledge Source Integration (SKSI): Designed and developed various components of a Cyc-based data integration system. Developed extensions to Cyc’s runtime environment to query and modify the contents of external structured knowledge sources, such as databases and web pages, from within the Cyc system. Enhanced various forms of Cyc’s special heuristic-level inference support to include external knowledge sources. Developed modules to enable management of databases from within Cyc. Played a key role in the development of a variety of applications of the SKSI technology, such as database transformation and fusion.
• CycSecure: Designed and developed the key components of a Cyc-based computer network security application. Developed an agent-based architecture for said application with authentication and encryption support. Enhanced Cyc’s runtime environment to enable disk-based storage of network data. Developed knowledge entry tools to facilitate building of an extensive ontology of network vulnerabilities within the Cyc knowledge base. Wrote simulation code to assess the scalability and performance of the application.
• NLP System Developer October 1998 – March 2001
• Designed and developed a lexicon component to support efficient lexical lookup and sentence tokenization. Developed a comprehensive computational grammar for English within a lexicalist grammar framework.

Sep 1997 – Sep 1998 · 1 yr

• Post-doctoral Fellow October 1997 – September 1998
• Worked as a research scientist on a project for developing a finite-state kernel architecture for processing Turkish, using the Xerox Finite State Tools.
• Instructor February 1998 – August 1998
• Designed and taught two courses to teach C programming to science students.

Jan 1995 – Jun 1997 · 2 yrs 5 mos

• Designed and conducted question and answer sessions.

Oct 1991 – Jul 1993 · 1 yr 9 mos

• Worked on a research project for developing a large-scale computational grammar for Turkish.

Oct 1991 – Jun 1993 · 1 yr 8 mos

• Designed and conducted question and answer sessions. Graded course work and exams.