8th International Summer School on Information Retrieval

Semantic Search Focus: IR on Structured Data

author: Duc Thanh Tran, Institute of Applied Informatics and Formal Description Methods, University of Karlsruhe
published: Sept. 20, 2011, recorded: August 2011, views: 245

Slides

Slides
0:00	Semantic Search Focus: IR on Structured Data
0:20	Agenda
1:26	Why Semantic Search?
1:29	Why Semantic Search? (1)
4:36	Why Semantic Search? (2)
6:20	Vocabularies (1)
6:40	Vocabularies (2)
7:06	Vocabularies (3)
7:32	Structured Data (1)
8:47	Structured Data (2)
9:43	Metadata (1)
10:34	Metadata (2)
10:52	Metadata (3)
11:56	What is Semantic Search?
12:11	Structure (1)
12:34	Semantics
13:48	Explicit Semantics
16:34	Search tasks – document retrieval
18:18	Search tasks – data retrieval
19:36	- Questions
22:12	- Questions
23:54	Core search problems (1)
25:13	Core search problems (2)
26:26	Core search problems (3)
27:57	Core search problems (4)
30:44	Search
33:31	- Questions
34:58	Semantic Search (2)
35:31	Semantic Search (3)
35:54	Semantic Search (4)
37:39	Semantic Search (5)
38:06	Focus of the following technical parts
39:57	Matching
40:23	Structure (2)
41:25	Keyword search approaches
43:59	Keyword search on hybrid data graphs
44:24	Term matching
45:30	Content matching
48:34	- Questions
52:41	Structure (3)
53:15	Matching in keyword search – schema-based
56:23	Structure (4)
56:27	- Questions
60:39	Structure (5)
61:02	Online search – top-k exploration
65:18	Online search – dynamic programming
67:57	Structure (6)
68:18	Index-based (1)
69:15	Index-based – path index
72:37	- Questions
76:20	Index-based (3)
78:00	Index-based (4)
80:51	- Questions
82:21	Index-based (6)
83:59	Index-based (7)
84:31	Taxonomy of matching approaches
85:10	Ranking
85:12	Structure (7)
85:58	Ranking paradigms
87:22	Features (1)
87:36	Features (2)
89:20	Content-based features – frequency
89:46	Structure-based features – links
92:12	- Questions
95:45	Structured-content-based model (1)
96:50	Structured-content-based model (2)
100:09	Structured-content-based model (3)
101:35	Structured-content-based model (4)
102:13	Ranking Steiner tree / join result tuples (JRT)
102:39	Taxonomy of ranking approaches
102:43	Conclusions
102:44	Conclusions (1)
103:26	…Selected challenges
103:57	References
103:58	References (1)
103:59	References (2)
104:01	Thanks!

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