Dr. Balduccini is an Associate Professor at the Department of Decision & System Sciences of Saint Joseph's University's Erivan K. Haub School of Business. His fundamental research interests are focused on knowledge representation & reasoning, including ontologies, agent architectures, commonsense, natural language understanding, and constraint satisfaction. Application domains of interest include
from pyDatalog import pyDatalog pyDatalog.create_terms('factorial, N') factorial[N] = N*factorial[N-1] factorial[1] = 1 print(factorial[3]==N) # prints N=6 pyDatalog adds the logic programming paradigm to Python's extensive toolbox, in a pythonic way. Logic programmers can now use the extensive standard library of Python, and Python programmers can now express complex algorithms quickly. Datalog i
A Lightweight Query Language∞ FoundationDB decouples its data storage technology from data models and query languages, implementing them as layers. This tutorial illustrates a lightweight query language for FoundationDB in the form of a binding for pyDatalog, an open source implementation of Datalog for use within Python. Caveat: this layer has not been designed for optimal efficiency. It has deli
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Learn Datalog Today is an interactive tutorial designed to teach you the Datomic dialect of Datalog. Datalog is a declarative database query language with roots in logic programming. Datalog has similar expressive power as SQL. Datomic is a database with an interesting and novel architecture, giving its users a unique set of features. You can read more about Datomic at https://datomic.com and the
(Updated Feb. 6 with corrections, below.) In 2006, Ben Mosely and Peter Marks published a paper, Out of the Tar Pit, in which they coined the term Functional Relational Programming. "Out of the Tar Pit" was influential on Clojure's design, particularly its emphasis on immutability and the separation of state from behavior. Mosely and Marks went further, however, in recommending that data be manipu
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