FI:PA212 Advanced Search Techniques - Course Information

PA212 Advanced Search Techniques for Large Scale Data Analytics

Extent and Intensity

2/0/0. 2 credit(s) (plus extra credits for completion). Type of Completion: zk (examination).

Teacher(s)

doc. RNDr. Jan Sedmidubský, Ph.D. (lecturer)
prof. Ing. Pavel Zezula, CSc. (lecturer)

Guaranteed by

doc. RNDr. Eva Hladká, Ph.D.
Department of Computer Systems and Communications – Faculty of Informatics
Supplier department: Department of Computer Systems and Communications – Faculty of Informatics

Timetable

Thu 12:00–13:50 C511

Prerequisites

Knowledge of the basic principles of data processing is assumed.

Course Enrolment Limitations

The course is also offered to the students of the fields other than those the course is directly associated with.

fields of study / plans the course is directly associated with

there are 47 fields of study the course is directly associated with, display

Course objectives

The objective of the course is to explain the problems of information retrieval in large collections of unstructured data, such as text documents or multimedia objects. The main emphasis will be given on describing basic principles of distributed algorithms for processing large volumes of data, e.g., Locality-sensitive hashing, MapReduce or PageRank. The algorithms for processing stream data will be introduced as well. The students will also acquire practical experience by applying the presented algorithms to the specific tasks.

Learning outcomes

After completing the course students are able to:
- Describe algorithmic-based differences between processing offline data collections and online data streams; - Understand the basic principles of distributed algorithms for processing large volumes of data;
- Evaluate the results of algorithms by several metrics;
- Apply presented algorithms, such as K-Means, Locality-sensitive hashing, MapReduce or PageRank, to the specific tasks.

Syllabus

• Introduction – What is searching, Things useful to know
• Support for Distributed Processing – Distributed file system, MapReduce, Algorithms using MapReduce, Cost model and performance evaluation
• Retrieval Operators and Result Evaluations – Common similarity search operators, Retrieval metrics
• Clustering – K-means algorithms, Clustering in non-Euclidean spaces, Clustering for streams and parallelism
• Finding Frequent Item Sets – Handling large datasets in main memory, Counting frequent items in a stream
• Finding Similar Items – Applications of near-neighbor search, Shingling of documents, Similarity-preserving summaries of sets, Locality sensitive hashing
• Searching in Data Streams – The stream data model, Filtering streams
• Link Analysis – Page Rank, Topic sensitive, Link spam
• Search Applications – Advertising on the web, Recommendation systems (collaborative filtering), Mining social-network graphs
• Seznam.cz – A Search Engine in Practice

Literature

recommended literature
• P, Deepak and Prasad M. DESHPANDE. Operators for similarity search : semantics, techniques and usage scenarios. Cham: Springer, 2015, xi, 115. ISBN 9783319212562. info
• LESKOVEC, Jurij, Anand RAJARAMAN and Jeffrey D. ULLMAN. Mining of massive datasets. 2nd ed. Cambridge: Cambridge University Press, 2014, xi, 467. ISBN 9781107077232. info
• BAEZA-YATES, R. and Berthier de Araújo Neto RIBEIRO. Modern information retrieval : the concepts and technology behind search. 2nd ed. Harlow: Pearson, 2011, xxx, 913. ISBN 9780321416919. info

Teaching methods

Lectures with slides in English. The approach combines theory, algorithms and practical examples.

Assessment methods

The final exam consists of a written and oral part. The student is asked several questions to verify their knowledge obtained during the course lectures.

Language of instruction

English

Further Comments

Study Materials
The course is taught annually.

• Enrolment Statistics (Spring 2018, recent)
  
• Permalink: https://is.muni.cz/course/fi/spring2018/PA212