diff --git a/lucidi/1. Intro.pdf b/lucidi/1. Intro.pdf new file mode 100644 index 0000000..f4889fb Binary files /dev/null and b/lucidi/1. Intro.pdf differ diff --git a/lucidi/1.2. Intro Models.pdf b/lucidi/1.2. Intro Models.pdf new file mode 100644 index 0000000..6048c46 Binary files /dev/null and b/lucidi/1.2. Intro Models.pdf differ diff --git a/lucidi/2.1. Intro XML.pdf b/lucidi/2.1. Intro XML.pdf new file mode 100644 index 0000000..ff2e6b6 Binary files /dev/null and b/lucidi/2.1. Intro XML.pdf differ diff --git a/lucidi/2.2. SQL:XML.pdf b/lucidi/2.2. SQL:XML.pdf new file mode 100644 index 0000000..259b484 Binary files /dev/null and b/lucidi/2.2. SQL:XML.pdf differ diff --git a/lucidi/2.3. XQuery.pdf b/lucidi/2.3. XQuery.pdf new file mode 100644 index 0000000..5c6d8a8 Binary files /dev/null and b/lucidi/2.3. XQuery.pdf differ diff --git a/lucidi/2.4. XQuery in DBMS.pdf b/lucidi/2.4. XQuery in DBMS.pdf new file mode 100644 index 0000000..85ace41 Binary files /dev/null and b/lucidi/2.4. XQuery in DBMS.pdf differ diff --git a/lucidi/2.5. NoSQL.pdf b/lucidi/2.5. NoSQL.pdf new file mode 100644 index 0000000..1f9a23f Binary files /dev/null and b/lucidi/2.5. NoSQL.pdf differ diff --git a/lucidi/3.1. Intro IR.pdf b/lucidi/3.1. Intro IR.pdf new file mode 100644 index 0000000..15c6f94 Binary files /dev/null and b/lucidi/3.1. Intro IR.pdf differ diff --git a/lucidi/3.2. Ranking.pdf b/lucidi/3.2. Ranking.pdf new file mode 100644 index 0000000..ff3bce0 Binary files /dev/null and b/lucidi/3.2. Ranking.pdf differ diff --git a/lucidi/3.3. Web Information Retrival.pdf b/lucidi/3.3. Web Information Retrival.pdf new file mode 100644 index 0000000..982ee6c Binary files /dev/null and b/lucidi/3.3. Web Information Retrival.pdf differ diff --git a/lucidi/3.4. Evaluation.pdf b/lucidi/3.4. Evaluation.pdf new file mode 100644 index 0000000..8f6ea66 Binary files /dev/null and b/lucidi/3.4. Evaluation.pdf differ diff --git a/lucidi/3.5. Advanced methods.pdf b/lucidi/3.5. Advanced methods.pdf new file mode 100644 index 0000000..1704b52 Binary files /dev/null and b/lucidi/3.5. Advanced methods.pdf differ diff --git a/lucidi/4.1. Data Analytics.pdf b/lucidi/4.1. Data Analytics.pdf new file mode 100644 index 0000000..44fa822 Binary files /dev/null and b/lucidi/4.1. Data Analytics.pdf differ diff --git a/lucidi/4.2. Data Werehouse.pdf b/lucidi/4.2. Data Werehouse.pdf new file mode 100644 index 0000000..a791b65 Binary files /dev/null and b/lucidi/4.2. Data Werehouse.pdf differ diff --git a/lucidi/4.3. Data Mining.pdf b/lucidi/4.3. Data Mining.pdf new file mode 100644 index 0000000..34e5323 Binary files /dev/null and b/lucidi/4.3. Data Mining.pdf differ