The SphereSearch Engine for Unified Ranked Retrieval of Heterogeneous XML and Web Documents

Summary: SphereSearch: unified ranked retrieval across heterogeneous XML and Web data. Supports vague structure and text criteria, plus concept- and link-aware ranking via IR statistics and ontologies; HTML/PDF pages convert to XML with semantic tagging, enabling rich queries on a richly tagged encyclopedia. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: h8e19f0a2be3b670f
Venue: VLDB
Year: 2005
Pagerank: 8.1738056e-05
Overall Rank: 2,644 | 82.24%
DOI: -

Incoming Non-self Citations Over Time

Authors

1. Jens Graupmann (Max Planck Institute)
2. Ralf Schenkel (Max Planck Institute)
3. Gerhard Weikum (Max Planck Institute)

BibTeX Citation

@article{graupmann_vldb05,
        title = {{The SphereSearch Engine for Unified Ranked Retrieval of Heterogeneous XML and Web Documents}},
        author = {Graupmann, Jens and Schenkel, Ralf and Weikum, Gerhard},
        journal = {PVLDB},
        series = {{VLDB} '05},
        volume = {31},
        pages = {529--540},
        year = {2005}
}

Incoming Citations (Sorted by Pagerank)

Showing 9 of 9 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
270	BLINKS: Ranked Keyword Searches on Graphs	2007	SIGMOD	0.00022588961
1,907	EASE: An Effective 3-in-1 Keyword Search Method for Unstructured, Semi-structured and Structured Data	2008	SIGMOD	9.3936687e-05
2,886	DB&IR: Both Sides Now (Extended Abstract)	2007	SIGMOD	7.9047629e-05
3,509	Keyword Search on External Memory Data Graphs	2008	VLDB	7.24401e-05
4,523	Avatar Semantic Search: A Database Approach to Information Retrieval	2006	SIGMOD	6.5592731e-05
5,225	Indexing Dataspaces	2007	SIGMOD	6.2190653e-05
6,296	Extracting Logical Hierarchical Structure of HTML Documents Based on Headings	2015	VLDB	5.8188122e-05
9,308	iDM: A Unified and Versatile Data Model for Personal Dataspace Management	2006	VLDB	5.196568e-05
12,470	Which Concepts Are Worth Extracting?	2014	SIGMOD	4.9769913e-05

Outgoing Citations (Sorted by Pagerank)

Showing 14 of 14 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
5	Optimal Aggregation Algorithms for Middleware [Extended Abstract]	2001	PODS	0.0010679903
81	XRANK: Ranked Keyword Search over XML Documents	2003	SIGMOD	0.00036330407
86	XMark: A Benchmark for XML Data Management	2002	VLDB	0.00035793969
111	Optimizing Multi-Feature Queries for Image Databases	2000	VLDB	0.00032668973
217	Efficient IR-Style Keyword Search over Relational Databases	2003	VLDB	0.00024454844
411	XSEarch: A Semantic Search Engine for XML	2003	VLDB	0.00018769329
586	W3QS: A Query System for the World-Wide Web	1995	VLDB	0.00015937529
599	Extracting Structured Data from Web Pages	2003	SIGMOD	0.00015748113
1,154	The Lixto Data Extraction Project - Back and Forth between Theory and Practice	2004	PODS	0.0001178814
1,204	Building light-weight wrappers for legacy Web data-sources using W4F	1999	VLDB	0.00011542699
1,535	Top-k Query Evaluation with Probabilistic Guarantees	2004	VLDB	0.00010326646
2,666	FleXPath: Flexible Structure and Full-Text Querying for XML	2004	SIGMOD	8.1527901e-05
2,785	To Weave the Web	1997	VLDB	8.0139609e-05
6,846	RoadRunner: Automatic Data Extraction from Data-Intensive Web Sites	2002	SIGMOD	5.6642008e-05

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1	14,118	Information Discovery in Loosely Integrated Data	2007	SIGMOD
2	6,276	Flexible and Efficient XML Search with Complex Full-Text Predicates	2006	SIGMOD
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6	3,033	Entity Search Engine: Towards Agile Best-Effort Information Integration over the Web	2007	CIDR
7	13,078	COMPASS: A Concept-based Web Search Engine for HTML, XML, and Deep Web Data	2004	VLDB
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