The Alpheios Project is an open source initiative originally focused on developing software to facilitate reading Latin and ancient Greek.
Dictionaries, grammars and inflection tables were combined in a set of web-based tools to provide comprehensive reading support for scholars, students and independent readers.
Nelson created Alpheios by recruiting several developers and programmers from his previous company, defining the project's initial goals and funding its first three years of operation.
The reading tools also contain some pedagogical features typically found in e-tutors such as morphological and lexical quizzes and games and the automatic comparison of the user's own claims about vocabulary proficiency with his recorded use of the dictionary resources.
a number of the Arabic texts that Perseus has digitized are available directly from Alpheios, including: Supports manual diagramming of sentences in any language that has spaces or punctuation between its words, annotating the nodes and arcs as desired, and exporting as a re-usable xml document.