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Leon, Alexis
L & L Consultancy Services Pvt. Ltd.
Cochin, India
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Alexis Leon is a software consultant, researcher, author, and reviewer. He has more than 18 years of experience in the areas of software engineering, database management systems, knowledge discovery, enterprise resource planning, workflow automation, groupware, product design, process improvement, project management, configuration management, quality assurance, work measurement, productivity improvement, and employee and end-user training. He earned his master's degree (M. Tech) in industrial engineering from Kerala University, India in 1991, and his bachelor's degree (B. Tech) in industrial engineering in 1989 from the same university.

Before becoming a software professional, he was a practicing industrial engineer at Pond's India Ltd. There, he was in charge of the IE department and was responsible to setting time standards, developing and establishing predetermined motion time standards (PMTS), designing plant layouts and material handling systems, production planning, method study, work simplification, productivity improvement, wage and incentive planning, and employee training. At Pond's India Ltd, he had the opportunity to work on cutting-edge production technologies like the Toyota production system, small group and small lot production, JIT and Kanban, and zero-defect manufacturing.

After two years of practicing industrial engineering, he switched professions to a career in software development. He joined Tata Consultancy Services (TCS), one of the world's leading information technology companies. At TCS, he mainly worked on IBM mainframes and many diverse projects. While working at TCS, in 1993, Alexis was involved in a road traffic accident that resulted in a spinal cord injury and paralysis from the chest down. After treatment and physical rehabilitation, he rejoined TCS and worked there for a couple of years more.

After about six years, he left TCS and co-founded Cybernet Software Systems Pvt. Ltd., a company that specialized in groupware and workflow automation. In 1997, he left Cybernet to start his own company along with his brother. He is the managing director of L and L Consultancy Services Pvt. Ltd., which specializes in software and industrial engineering consultancy.

Alexis has written more than 40 books on computing, IT, and management topics. Two of his books have been translated to Mandarin. He reviews books and productivity improvement tools (hardware and software) on his online book club at He is a member of the Association for Computing Machinery (ACM), the Institute of Electrical and Electronics Engineers (IEEE), the IEEE-Computer Society, the Institute of Industrial Engineers (IIE), the Modern Language Association (MLA), the Computer Assisted Language Instruction Consortium (CALICO), the Indian Institution of Industrial Engineers (IIIE), and the Computer Society of India (CSI).

He lives in the beautiful tropical state of Kerala, India. His hobbies include reading, blogging, listening to music, and watching movies. More information about Alexis and his activities can be found at his personal Web site:

Date Reviewed  
- 10 of 45 reviews

  Writing for computer science
Zobel J.,  Springer Publishing Company, Incorporated, New York, NY, 2015. 284 pp. Type: Book (978-1-447166-38-2)

This is a comprehensive guide on research methods and how to produce a scientific publication detailing one’s research in computer science (CS) and related fields. The author has drawn from his vast experience as adviser, researcher, and ref...

Jul 21 2015  
  Data mining for service
Yada K.,  Springer Publishing Company, Incorporated, Berlin, Germany, 2014. 250 pp. Type: Book (978-3-642452-51-2)

The increase in consumerism across the globe has led to the exponential growth of the service sector. The service sector is characterized by the intangibility of inputs and results. The chief factor that separates the winners from the losers in th...

Jun 10 2014  
  Data mining and knowledge discovery for big data: methodologies, challenge and opportunities
Chu W.,  Springer Publishing Company, Incorporated, Berlin, Germany, 2014. 350 pp. Type: Book (978-3-642408-36-6)

The popularity and usefulness of data mining and knowledge discovery is increasing at an exponential rate. These fields are making steady advances that make them more and more useful to people dealing with huge volumes of data. These techniques ar...

Feb 7 2014  
  Principles of data mining (2nd ed.)
Bramer M.,  Springer Publishing Company, Incorporated, London, UK, 2013. 454 pp. Type: Book (978-1-447148-83-8)

Data mining is one of the most popular and effective tools for knowledge discovery. It involves the analysis and summary of data from different perspectives and the automatic extraction of useful information. Data mining reveals trends, patterns, ...

Sep 23 2013  
  Data mining in large sets of complex data
Cordeiro R., Faloutsos C., Júnior C.,  Springer Publishing Company, Incorporated, New York, NY, 2013. 127 pp. Type: Book (978-1-447148-89-0)

In this information age, the volume and complexity of data generated and collected is increasing exponentially. In order to significantly use these huge volumes of complex data, we must have fast and automated techniques to discover useful knowled...

Jul 30 2013  
  Modeling people and places with Internet photo collections
Crandall D., Snavely N.  Queue 10(5): 30-44, 2012. Type: Article

Advancements in digital photography and facilities for storing and sharing photos on the Internet have made digital photography accessible to millions of people. This article shares the authors’ work with online photo collections to recreate...

Feb 20 2013  
  Internet success: a study of open-source software commons
Schweik C., English R.,  The MIT Press, Cambridge, MA, 2012. 344 pp. Type: Book (978-0-262017-25-1)

Open-source software offers free access to its source code. The open-source license permits users to copy, study, change, improve, and redistribute the code and software. As of November 2012, SourceForge, the largest hosting Web site for open-sour...

Nov 28 2012  
  Data mining in software engineering
Halkidi M., Spinellis D., Tsatsaronis G., Vazirgiannis M.  Intelligent Data Analysis 15(3): 413-441, 2011. Type: Article

Today, huge volumes of data about software development are available from a variety of sources, including organizational databases, open-source software project metadata, and other software engineering repositories, mailing lists, discussion forum...

Apr 20 2012  
   Technical writing: a practical guide for engineers and scientists
Laplante P.,  CRC Press, Inc., Boca Raton, FL, 2011. 250 pp. Type: Book (978-1-439820-85-8)

Technical writing is the art and science of communicating complex technical concepts in a simple, concise, and engaging manner. Mastering the craft of technical writing is critical for the effective functioning and survival of every professional: ...

Feb 27 2012  
  Bipolar database querying using bipolar satisfaction degrees
Matthé T., De Tré G., Zadrożny S., Kacprzyk J., Bronselaer A.  International Journal of Intelligent Systems 26(10): 890-910, 2011. Type: Article

The usefulness and effectiveness of any database depends on the quality of information that can be derived from it. Queries convert data into useful information. When querying a database, users often specify what they do not want rather than what ...

Feb 22 2012  
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