• March 20, 2015 In April, the exam will be held on April 21, at 4pm in room B217 in via Ariosto 25. The students who want to do the exam on that date should send a message to Prof. Lenzerini.
• March 12, 2014 The students are invited to download the slides from the course page in Moodle.

• Architectures for information integration
• Distributed data management
• Data federation
• Data exchange and data warehousing
• ETL (Extraction, Transformation and Loading), data cleaning and data reconciliation
• Data integration
• Ontology-based data integration

• Please, visit the course page in Moodle for downloading all the material of the course, as well as for participating in the Forum. The password for accessing the Moodle pages of this course will be communicated to the students during the lectures.
• Before the beginning of the lectures, students are invited to (re)study the basic notions of propositional and first-order logic. For this purpose, students may use the material they used in previous courses, or have a look at:
  • Introduction to propositional logic (paper)
  • Introduction to first-order logic (paper)
  • FOL and conjunctive queries (from the material of "Metodi Formali per il Software e i Servizi", by Giuseppe De Giacomo)

The lecture notes can be downloaded from the course page in Moodle

For the exam, each student is expected to do one of the following things:

• Study a tool for data integration or data federation, or data exchange, and then make a presentation (in English), where the characteristics of the tool are described, the position of the tool in the spectrum of information integration principles illustrated in the course, is discussed, and a demo of the tool is presented. For a picture of the available tools for data integration, the student should search on the web. Here is an incomplete list of possible tools: Karma, IBM Infosphere, Oracle data integrator, CloverETL, Pentaho, TEIID, Talend, Jitterbit, Adeptia, Open Refine etc.
• Choose a set of data sources with data relevant for a certain phenomenon (for example, data taken from open data published on-line, or data taken from a database or from an xls file known by the student), and develop a data integration or data exchange application using such data sources (and using any tool selected by the student). This work can be carried out in a group (of at most two students).
• Study a paper on information integration, and then discuss the paper in a 15 minutes presentation (in English), again, including a part for positioning the work in the context of the spectrum of the principles illustrated in the course. Here is a (non exhaustive) list of papers that can be considered (use Google to find the papers and download them):
  • 1. Diego Calvanese, Giuseppe De Giacomo, Maurizio Lenzerini, Moshe Y. Vardi. Rewriting of Regular Expressions and Regular Path Queries. In J. Comput. Syst. Sci. 64(3):443-465, 2002
  • 2. Alon Y. Levy, Alberto O. Mendelzon, Yehoshua Sagiv, Divesh Srivastava. Answering Queries Using Views. PODS 1995: 95-104
  • 3. Rachel Pottinger, Alon Halevy. MiniCon: A scalable algorithm for answering queries using views.The VLDB Journal” The International Journal on Very Large Data Bases, Volume 10, Issue 2-3 (September 2001)
  • 4. Oliver M. Duschka, Michael R. Genesereth, Alon Y. Levy. Recursive Query Plans for Data Integration. J. Log. Program. 43(1): 49-73 (2000)
  • 5. Philippe Adjiman, Philippe Chatalic, Francois Goasdou, Marie-Christine Rousset, Laurent Simon. Distributed Reasoning in a Peer-to-Peer Setting: Application to the Semantic Web. Journal of Artificial Intelligence Research (JAIR) 25: 269-314 (2006)
  • 6. Xin Luna Dong, Alon Y. Halevy, Cong Yu. Data integration with uncertainty. VLDB J. 18(2): 469-500 (2009)
  • 7. Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wang Chiew Tan. Composing schema mappings: Second-order dependencies to the rescue. ACM Trans. Database Syst. 30(4): 994-1055 (2005)
  • 8. Andrea Calì, Domenico Lembo, Riccardo Rosati. On the decidability and complexity of query answering over inconsistent and incomplete databases. PODS 2003: 260-271
  • 9. Jens Bleiholder, Felix Naumann. Data fusion. ACM Comput. Surv. 41(1): (2008)
  • 10. Marcelo Arenas, Leopoldo E. Bertossi, Jan Chomicki. Consistent Query Answers in Inconsistent Databases. PODS 1999: 68-79
  • 11. George Konstantinidis, José Luis Ambite. Scalable query rewriting: a graph-based approach, SIGMOD '11 Proceedings of the 2011 international conference on Management of data.
  • 12. Hector Gonzalez, Alon Y. Halevy, Christian S. Jensen, Anno Langen, Jayant Madhavan, Rebecca Shapley, Warren Shen, Jonathan Goldberg-Kidon. Google fusion tables: web-centered data management and collaboration. SIGMOD Conference 2010: 1061-1066
  • 13. Mary Roth, Wang-Chiew Tan: Data Integration and Data Exchange: It's Really About Time. CIDR 2013
  • 14. Bogdan Alexe, Balder ten Cate, Phokion G. Kolaitis, Wang Chiew Tan: Characterizing schema mappings via data examples. ACM Trans. Database Syst. 36(4): 23 (2011)
  • 15. Anastasios Kementsietsidis, Marcelo Arenas, Renée J. Miller: Mapping Data in Peer-to-Peer Systems: Semantics and Algorithmic Issues. SIGMOD Conference 2003: 325-336

In all the above three cases, once the student has chosen the topic, (s)he should send an email message to prof. Lenzerini with the description of the topic, and wait for confirmation, or a request to change the topic, if the topic (tool, paper, or use case) is already taken.

The exam will be held in the following months:

• First exam: June 2014
• Second exam: July 2014
• Third exam: September 2014
• First special session: October 2014
• Fourth exam: January 20, 2015, at 4pm, in via Ariosto 25
• Fifth exam: February 24, 2015, at 4pm, in via Ariosto 25
• Second special session: April 21, 2015, at 4pm, in via Ariosto 25

Once the student is ready for the exam, (s)he should send an email message to prof. Lenzerini with the indication of the date when (s)he wants to give the exam.

• When: during the period (February 24 - May 30, 2014), every Thursday at 8:30am - 10:00am, and sometime on Wednesday at 8:30am - 10:00am (check the schedule below)
• Where: via Ariosto 25, Roma - classroom A2
• Schedule:

• Academic year 2012/2013
• Academic year 2011/2012
• Academic year 2010/2011
• Academic year 2009/2010
• Academic year 2008/2009