Sigir
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Author | : W. Bruce Croft |
Publisher | : Springer Science & Business Media |
Total Pages | : 371 |
Release | : 2012-12-06 |
Genre | : Computers |
ISBN | : 144712099X |
Information retrieval (IR) is becoming an increasingly important area as scientific, business and government organisations take up the notion of "information superhighways" and make available their full text databases for searching. Containing a selection of 35 papers taken from the 17th Annual SIGIR Conference held in Dublin, Ireland in July 1994, the book addresses basic research and provides an evaluation of information retrieval techniques in applications. Topics covered include text categorisation, indexing, user modelling, IR theory and logic, natural language processing, statistical and probabilistic models of information retrieval systems, routing, passage retrieval, and implementation issues.
Author | : |
Publisher | : |
Total Pages | : 226 |
Release | : 2007 |
Genre | : Internal security |
ISBN | : |
Author | : United States. Office of the Special Inspector General for Iraq Reconstruction |
Publisher | : Government Printing Office |
Total Pages | : 480 |
Release | : 2009 |
Genre | : History |
ISBN | : |
Product Description: The billions of dollars expended in Iraq constitute the largest relief and reconstruction exercise in American history. SIGIR's lessons learned capping report characterizes this effort in four phases (pre-war to ORHA, CPA, post-CPA/Negroponte era, and Khalilzad, Crocker, and the Surge). From this history, SIGIR forwards a series of conclusions and recommendations for Congress to consider when organizing for the next post-conflict reconstruction situation. Over the past five years, the United States has provided nearly fifty billion dollars for the relief and reconstruction of Iraq. This unprecedented rebuilding program, implemented after the March 2003 invasion, was developed to restore Iraq's essential services, build Iraq's security forces, create a market-based economy, and establish a democratic government--all in pursuit of U.S. interests in a stable and free Iraq. Did the U.S. rebuilding program achieve its objectives? Was the money provided well-spent or wasted? What lessons have we learned from the experience? Hard Lessons: The Iraq Reconstruction Experience, a report from the Special Inspector General for Iraq Reconstruction (SIGIR), answers these and other important questions by presenting a comprehensive history of the U.S. program, chiefly derived from SIGIR's body of extensive oversight work in Iraq, hundreds of interviews with key figures involved with the reconstruction program, and thousands of documents evidencing the reconstruction work that was - or was not - done. The report examines the limited pre-war planning for reconstruction, the shift from a large infrastructure program to a more community-based one, and the success of the Surge in 2007 and beyond. Hard Lessons concludes that the U.S. government did not have the structure or resources in place to execute the mammoth relief and reconstruction plan it took on in 2003. The lessons learned from this experience create a basis for reviewing and reforming the U.S. approach to contingency relief and reconstruction operations.
Author | : |
Publisher | : |
Total Pages | : 686 |
Release | : 1988 |
Genre | : Database management |
ISBN | : |
Author | : Hang Li |
Publisher | : Springer Science & Business Media |
Total Pages | : 701 |
Release | : 2008-05-29 |
Genre | : Computers |
ISBN | : 3540686339 |
This book constitutes the thoroughly refereed post-conference proceedings of the 4th Asia Information Retrieval Symposium, AIRS 2008, held in Harbin, China, in May 2008. The 39 revised full papers and 43 revised poster papers presented were carefully reviewed and selected from 144 submissions. All current issues in information retrieval are addressed: applications, systems, technologies and theoretical aspects of information retrieval in text, audio, image, video and multi-media data. The papers are organized in topical sections on IR models image retrieval, text classification, chinese language processing, text processing, application of IR, machine learning, taxonomy, IR methods, information extraction, summarization, multimedia, Web IR, and text clustering.
Author | : Richard R. Jr. Brennan |
Publisher | : Rand Corporation |
Total Pages | : 635 |
Release | : 2013-11-05 |
Genre | : Political Science |
ISBN | : 0833080482 |
Ending the U.S. war in Iraq required redeploying 100,000 military and civilian personnel; handing off responsibility for 431 activities to the Iraqi government, U.S. embassy, USCENTCOM, or other U.S. government entities; and moving or transferring ownership of over a million pieces of property in accordance with U.S. and Iraqi laws, national policy, and DoD requirements. This book examines the planning and execution of this transition.
Author | : United States. Congress. House. Committee on Appropriations. Subcommittee on State, Foreign Operations, and Related Programs |
Publisher | : |
Total Pages | : 264 |
Release | : 2007 |
Genre | : United States |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 728 |
Release | : 2005 |
Genre | : Database management |
ISBN | : |
Author | : Stuart W. Bowen |
Publisher | : DIANE Publishing |
Total Pages | : 508 |
Release | : 2009-05 |
Genre | : Technology & Engineering |
ISBN | : 1437912745 |
A combination of poor planning, weak oversight and greed cheated U.S. taxpayers and undermined American forces in Iraq and Afghanistan. U.S. taxpayers have paid nearly $51 billion for projects in Iraq, including training the Iraqi army and police and rebuilding Iraq's oil, electric, justice, health and transportation sectors. Many of the projects did not succeed, partly because of violence in Iraq and friction between U.S. officials in Washington and Iraqi officials in Baghdad. The U.S. gov¿t. "was neither prepared for nor able to respond quickly to the ever-changing demands" of stabilizing Iraq and then rebuilding it. This report reviews the problems in the war effort, which the Bush admin. claimed would cost $2.4 billion. Charts and tables.
Author | : Tie-Yan Liu |
Publisher | : Springer Science & Business Media |
Total Pages | : 282 |
Release | : 2011-04-29 |
Genre | : Computers |
ISBN | : 3642142672 |
Due to the fast growth of the Web and the difficulties in finding desired information, efficient and effective information retrieval systems have become more important than ever, and the search engine has become an essential tool for many people. The ranker, a central component in every search engine, is responsible for the matching between processed queries and indexed documents. Because of its central role, great attention has been paid to the research and development of ranking technologies. In addition, ranking is also pivotal for many other information retrieval applications, such as collaborative filtering, definition ranking, question answering, multimedia retrieval, text summarization, and online advertisement. Leveraging machine learning technologies in the ranking process has led to innovative and more effective ranking models, and eventually to a completely new research area called “learning to rank”. Liu first gives a comprehensive review of the major approaches to learning to rank. For each approach he presents the basic framework, with example algorithms, and he discusses its advantages and disadvantages. He continues with some recent advances in learning to rank that cannot be simply categorized into the three major approaches – these include relational ranking, query-dependent ranking, transfer ranking, and semisupervised ranking. His presentation is completed by several examples that apply these technologies to solve real information retrieval problems, and by theoretical discussions on guarantees for ranking performance. This book is written for researchers and graduate students in both information retrieval and machine learning. They will find here the only comprehensive description of the state of the art in a field that has driven the recent advances in search engine development.