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ACM Transactions on the Web (TWEB), Volume 6 Issue 4, November 2012

Cache-Based Query Processing for Search Engines
B. Barla Cambazoglu, Ismail Sengor Altingovde, Rifat Ozcan, Özgür Ulusoy
Article No.: 14
DOI: 10.1145/2382616.2382617

In practice, a search engine may fail to serve a query due to various reasons such as hardware/network failures, excessive query load, lack of matching documents, or service contract limitations (e.g., the query rate limits for third-party users...

A Methodology for SIP and SOAP Integration Using Application-Specific Protocol Conversion
Goran Delac, Ivan Budiselic, Ivan Zuzak, Ivan Skuliber, Tomislav Stefanec
Article No.: 15
DOI: 10.1145/2382616.2382618

In recent years, the ubiquitous demands for cross-protocol application access are driving the need for deeper integration between SIP and SOAP. In this article we present a novel methodology for integrating these two protocols. Through an analysis...

Workload Characterization and Performance Implications of Large-Scale Blog Servers
Myeongjae Jeon, Youngjae Kim, Jeaho Hwang, Joonwon Lee, Euiseong Seo
Article No.: 16
DOI: 10.1145/2382616.2382619

With the ever-increasing popularity of Social Network Services (SNSs), an understanding of the characteristics of these services and their effects on the behavior of their host servers is critical. However, there has been a lack of research on the...

Beyond Social Graphs: User Interactions in Online Social Networks and their Implications
Christo Wilson, Alessandra Sala, Krishna P. N. Puttaswamy, Ben Y. Zhao
Article No.: 17
DOI: 10.1145/2382616.2382620

Social networks are popular platforms for interaction, communication, and collaboration between friends. Researchers have recently proposed an emerging class of applications that leverage relationships from social networks to improve security and...

Exploiting External Collections for Query Expansion
Wouter Weerkamp, Krisztian Balog, Maarten de Rijke
Article No.: 18
DOI: 10.1145/2382616.2382621

A persisting challenge in the field of information retrieval is the vocabulary mismatch between a user’s information need and the relevant documents. One way of addressing this issue is to apply query modeling: to add terms to the original...