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Tsinghua Science and Technology

Issue 6 • Date Dec. 2010

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Displaying Results 1 - 17 of 17
  • [Front cover]

    Publication Year: 2010, Page(s): c1
    IEEE is not the copyright holder of this material | PDF file iconPDF (231 KB)
    Freely Available from IEEE
  • Contents

    Publication Year: 2010, Page(s): 1
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    Freely Available from IEEE
  • Total contents

    Publication Year: 2010, Page(s):I - V
    IEEE is not the copyright holder of this material | PDF file iconPDF (162 KB)
    Freely Available from IEEE
  • Towards efficient SPARQL query processing on RDF data

    Publication Year: 2010, Page(s):613 - 622
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (722 KB)

    Efficient support for querying large-scale resource description framework (RDF) triples plays an important role in semantic web data management. This paper presents an efficient RDF query engine to evaluate SPARQL queries, where the inverted index structure is employed for indexing the RDF triples. A set of operators on the inverted index was developed for query optimization and evaluation. Then a... View full abstract»

    Open Access
  • Finding data tractable description logics for computing a minimum cost diagnosis based on ABox decomposition

    Publication Year: 2010, Page(s):623 - 632
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (506 KB)

    Ontology diagnosis, a well-known approach for handling inconsistencies in a description logic (DL) based ontology, computes a diagnosis of the ontology, i.e., a minimal subset of axioms in the ontology whose removal restores consistency. However, ontology diagnosis is computationally hard, especially computing a minimum cost diagnosis (MCD) which is a diagnosis such that the sum of the removal cos... View full abstract»

    Open Access
  • Semantic-oriented knowledge transfer for review rating

    Publication Year: 2010, Page(s):633 - 641
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1967 KB)

    With the rapid development of Web 2.0, more and more people are sharing their opinions about online products, so there is much product review data. However, it is difficult to compare products directly using ratings because many ratings are based on different scales or ratings are even missing. This paper addresses the following question: given textual reviews, how can we automatically determine t... View full abstract»

    Open Access
  • A novel ranking framework for linked data from relational databases

    Publication Year: 2010, Page(s):642 - 649
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (481 KB)

    This paper investigates the problem of ranking linked data from relational databases using a ranking framework. The core idea is to group relationships by their types, then rank the types, and finally rank the instances attached to each type. The ranking criteria for each step considers the mapping rules and heterogeneous graph structure of the data web. Tests based on a social network dataset sho... View full abstract»

    Open Access
  • DLP learning from uncertain data

    Publication Year: 2010, Page(s):650 - 656
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (545 KB)

    Description logic programs (DLP) are an expressive but tractable subset of OWL. This paper analyzes the important under-researched problem of learning DLP from uncertain data. Current studies have rarely explored the plentiful uncertain data populating the semantic web. This algorithm handles uncertain data in an inductive logic programming framework by modifying the performance evaluation criteri... View full abstract»

    Open Access
  • Ontology-driven mashup auto-completion on a data API network

    Publication Year: 2010, Page(s):657 - 667
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1921 KB)

    The building of data mashups is complicated and error-prone, because this process requires not only finding suitable APls but also combining them in an appropriate way to get the desired result. This paper describes an ontology-driven mashup auto-completion approach for a data API network to facilitate this task. First, a microformats-based ontology was defined to describe the attributes and activ... View full abstract»

    Open Access
  • Disambiguating authors by pairwise classification

    Publication Year: 2010, Page(s):668 - 677
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (426 KB)

    Name ambiguity is a critical problem in many applications, in particular in online bibliography systems, such as DBLP, ACM, and CiteSeerx. Despite the many studies, this problem is still not resolved and is becoming even more serious, especially with the increasing popularity of Web 2.0. This paper addresses the problem in the academic researcher social network ArnetMiner using a supervised method... View full abstract»

    Open Access
  • Efficient composition of semantic web services with end-to-end QoS optimization

    Publication Year: 2010, Page(s):678 - 686
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (756 KB)

    The efficiency of OoS-aware service composition is important since most service composition problems are known to be NP-hard. With the growing number of web services, service composition is like a decision problem on selecting services or/and execution plans to satisfy the users' end-to-end OoS requirements (e.g. response time, throughput). Composite services with the same functionality may have d... View full abstract»

    Open Access
  • Reasoning with inconsistent ontologies

    Publication Year: 2010, Page(s):687 - 691
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (250 KB)

    Reasoning with inconsistent ontologies involves using an inconsistency reasoner to get meaningful answers from inconsistent ontologies. This paper introduces an improved inconsistency reasoner, which selects consistent subsets using minimal inconsistent sets and a resolution method, to improve the run-time performance of the reasoning processing. A minimal inconsistent set contains a minimal expla... View full abstract»

    Open Access
  • Closed world reasoning for OWL2 with NBox

    Publication Year: 2010, Page(s):692 - 701
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (456 KB)

    This paper describes the problem of doing description logic (OL) reasoning with partially closed world. The issue was addressed by extending the syntax of OL SROIQ with an NBox, which specifies the predicates to close, extending the semantics with the idea of negation as failure, reducing the closed world reasoning to incremental reasoning on classical OL ontologies, and applying the syntactic app... View full abstract»

    Open Access
  • An empirical study of unsupervised sentiment classification of Chinese reviews

    Publication Year: 2010, Page(s):702 - 708
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (436 KB)

    This paper is an empirical study of unsupervised sentiment classification of Chinese reviews. The focus is on exploring the ways to improve the performance of the unsupervised sentiment classification based on limited existing sentiment resources in Chinese. On the one hand, all available Chinese sentiment lexicons — individual and combined — are evaluated under our proposed framewor... View full abstract»

    Open Access
  • Normalized MEDLINE distance in context-aware life science literature searches

    Publication Year: 2010, Page(s):709 - 715
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3439 KB)

    Literature searches on the Web result in great volumes of query results. A model is presented here to refine the search process using user interests. User interests are analyzed to calculate semantic similarity among the interest terms to refine the query. Traditional general purpose similarity measures may not always fit a domain specific context. This paper presents a similarity method for medic... View full abstract»

    Open Access
  • Automatic approach to ontology evolution based on change impact comparisons

    Publication Year: 2010, Page(s):716 - 723
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (519 KB)

    Ontology evolution is the timely adaptation of ontologies to changing requirements, which is becoming more and more important as ontologies become widely used in different fields. This paper shows how to address the problem of evolving ontologies with less manual case-based reasoning using an automatic selection mechanism. An automatic ontology evolution strategy selection framework is presented t... View full abstract»

    Open Access
  • Extracting semantic subgraphs to capture the real meanings of ontology elements

    Publication Year: 2010, Page(s):724 - 733
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (838 KB)

    An element may have heterogeneous semantic interpretations in different ontologies. Therefore, understanding the real local meanings of elements is very useful for ontology operations such as querying and reasoning, which are the foundations for many applications including semantic searching, ontology matching, and linked data analysis. However, since different ontologies have different preference... View full abstract»

    Open Access

Aims & Scope

Tsinghua Science and Technology (Tsinghua Sci Technol) aims to highlight scientific achievements in computer science, electronic engineering, and other IT fields. Contributions all over the world are welcome.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Professor Jiaguang Sun
School of Software
Tsinghua University
Beijing  100084 China
journal@tsinghua.edu.cn
Phone:86-10-62771385