93425 - Data Modelling and Multimedia Databases (1) (Lm)

Course Unit Page

SDGs

This teaching activity contributes to the achievement of the Sustainable Development Goals of the UN 2030 Agenda.

Good health and well-being Quality education Industry, innovation and infrastructure Sustainable cities

Academic Year 2021/2022

Learning outcomes

This course aims to initiate the students to data modeling, firstly by reflecting on content type; starting from traditional metadata, continuing with regular (textual) documents, and concluding with most complex multimedia documents. At the end of the course the students will be able to master: principles and fundamentals of documents; database design and implementation; most suitable methods of documents; data content description, together with their indexing techniques and query paradigms; evaluation of the quality of provided results through quantitative metrics (both for effectiveness and efficiency); be familiar with the state-of-the-art of multimedia database management; be able to analyze the requirements of specific contexts in the cultural heritage domain in order to identify the most appropriate solutions for modeling and managing the underlying data

Course contents

Basics on structured, semi-structured, and unstructured data

  • Basic concepts of data modelling

Textual Information Retrieval (IR) systems: general principles

  • Documents representation in IR systems
  • Automatic indexing techniques, stemming, stoplist
  • Searches of Boolean type
  • Searches of phrases and for proximity
  • The Vector Space model: weighing techniques and ranking of the results
  • Evaluation of IR systems: Precision and Recall metrics

Multimedia Information Retrieval (MM-IR)

  • General concepts: feature extraction and similarity criteria
  • Examples for different types of multimedia data
  • Query paradigms and presentation of the results
  • Interactive searches

Each lecture is enriched by the teacher by means of guided classroom exercises, practical examples, use cases, and demos in the context of cultural heritage.

 

Readings/Bibliography

During the course, the teacher will provide the students with educational material in the form of slides and relevant scientific literature.

Further bibliographic links are provided to allow the student (with particular reference to the working student) further information.

Teaching methods

Course lectures are in "traditional" classrooms and exploit the slides. Several use cases will be presented in order to show how such information technologies can be profitably applied in a number of real applications.

Provided slides are in english. Fluent spoken and written english is a necessary pre-requisite: all lectures and tutorials will be in english.

N.B. For students of the second cycle degree programmes (LM) in Library and Archive Science - Campus of Ravenna: 1) the course will be taught entirely remotely via video streaming; 2) the student is allowed to take the final exam also in Italian.

Assessment methods

Achievements will be assessed by the means of a final oral examination. This is based on an analytical assessment of the "expected learning outcomes" described above. In order to properly assess such achievement the examination is composed of an oral exam.

The admission of the students to the final examination is constrained to the upload of the complete solution of the "free" exercise into the dedicated OneDrive folder "DMMMDBs", following the instructions provided by the teacher (see the slides of the course presentation for more details).

To participate to the oral exam, interested students have to register themselves by exploiting the usual UniBO Web application, called AlmaEsami.

Higher grades will be awarded to students who demonstrate an organic understanding of the subject, a high ability for critical application, and a clear and concise presentation of the contents. To obtain a passing grade, students are required to at least demonstrate a knowledge of the key concepts of the subject, some ability for critical application, and a comprehensible use of technical language. A failing grade will be awarded if the student shows knowledge gaps in key-concepts of the subject, inappropriate use of language, and/or logic failures in the analysis of the subject.

Teaching tools

Classroom lessons will be held using slides, which will be integrated with the use of the blackboard for the development of exercises.

Links to further information

http://www-db.disi.unibo.it/courses/DMMMDB/

Office hours

See the website of Ilaria Bartolini