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Effective and efficient structured retrieval

Le Zhao, Jamie Callan
2009 Proceeding of the 18th ACM conference on Information and knowledge management - CIKM '09  
Experiments show that each solution incrementally improves structured retrieval, and a combination of Boolean filtering, structural expansion, and keyword queries outperforms keyword and simple structured  ...  This paper studies retrieval of sentences with annotations for a question answering task. Three problems of structured retrieval are identified and solutions proposed.  ...  The views and conclusions are the authors', and do not reflect those of the sponsor.  ... 
doi:10.1145/1645953.1646175 dblp:conf/cikm/ZhaoC09 fatcat:th7dmtmkj5gozoo2h56q5yl4su

Effective and efficient retrieval of structured entities

Ruihong Huang, Shaoxu Song, Yunsu Lee, Jungho Park, Soo-Hyung Kim, Sungmin Yi
2020 Proceedings of the VLDB Endowment  
Extensive experiments on real datasets demonstrate that our proposal is effective and efficient. PVLDB Reference Format:  ...  We argue that the retrieval could be more tolerant to structural differences and focus more on the contents of the entities.  ...  Acknowledgement This work is supported in part by the National Key Research and Development Plan (2019YFB1705301) and the National Natural Science Foundation of China (61572272, 71690231).  ... 
doi:10.14778/3380750.3380754 fatcat:owkmyu2pqnabfogchyz5x6uk64

Efficient integration of proximity for text, semi-structured and graph retrieval

Andreas Broschart
2007 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '07  
3) proving the retrieval effectiveness and efficiency of the proposed approaches through extensive experimental studies.  ...  This PhD research aims at (1) leveraging the power of proximity-enhanced scoring models for text, semi-structured and graph retrieval, (2) at the same time treating efficiency as a major concern, and (  ...  We plan to prove retrieval effectiveness and efficiency using commonly used collections and topics (e.g., from the INEX Ad Hoc track for XML data).  ... 
doi:10.1145/1277741.1277986 dblp:conf/sigir/Broschart07 fatcat:qmjfci3lgnh77i2qjihz6w2uly

FLCSE: A Novel Feature Extraction Method for Content Structures in Flash Animation Resources

Zhenguo Xu, Jing An, Xiangzeng Meng, Xin Wang
2017 ICIC Express Letters  
They determine the efficiency and quality of retrieval.  ...  The content structure features which include metadata information, component elements, dynamic effects and interactive modes are important parts of the retrieval for Flash resources.  ...  This work is partially supported by the Science and Technology Development Project of Shandong Province (No. 2011GGX10112).  ... 
doi:10.24507/icicel.11.03.633 fatcat:fv274kazbvedbkpe3cmo2vvoq4

Learning Multi-view Deep Features for Small Object Retrieval in Surveillance Scenarios

Haiyun Guo, Jinqiao Wang, Min Xu, Zheng-Jun Zha, Hanqing Lu
2015 Proceedings of the 23rd ACM international conference on Multimedia - MM '15  
, which is as crucial as structure information for effective object representation.  ...  In this paper, we propose to leverage discriminative Convolutional Neural Network (CNN) to learn deep structure and color feature to form an efficient multi-view object representation.  ...  Structure and color attributes are two most crucial properties for effective object representation.  ... 
doi:10.1145/2733373.2806349 dblp:conf/mm/GuoWXZL15 fatcat:7gzu3u7yizbihdb4cofff423la

ENHANCED NONLINEARITIES IN DOUBLE-FISHNET NEGATIVE-INDEX PHOTONIC METAMATERIALS

Jun Guo, Yuanjiang Xiang, Xiaoyu Dai, Shuangchun Wen
2013 Electromagnetic Waves  
We also use the retrieved parameters to calculate the material figure of merits and the conversion efficiencies, showing material figure of merits up to two orders of magnitude larger and conversion efficiencies  ...  Though these results are calculated using one-unit-cell thick structures, the large magnitude of the enhancement still makes these structures attractive, allowing reasonable conversion efficiencies supported  ...  We try to get varied nonlinear enhancement properties and identify the effects of varied structure parameters.  ... 
doi:10.2528/pier12120601 fatcat:ftqtvaztrvho3b5raisnbp4dpu

Indexing Word Sequences for Ranked Retrieval

Samuel Huston, J. Shane Culpepper, W. Bruce Croft
2014 ACM Transactions on Information Systems  
In this paper, we present and analyze a new index structure designed to improve query efficiency in dependency retrieval models.  ...  Formulating and processing phrases and other term dependencies to improve query effectiveness is an important problem in information retrieval.  ...  Our retrieval model can be executed efficiently using sketch index structures.  ... 
doi:10.1145/2559168 fatcat:apql2edulnfhllv7m3gi3qe6ru

Feature-Based 3D Object Retrieval [chapter]

Susan Dumais, Magdalena Balazinska, Jeong-Hyon Hwang, Mehul A. Shah, Raimondo Schettini, Gianluigi Ciocca, Isabella Gagliardi, Manoranjan Dash, Poon Wei Koot, Benjamin Bustos, Tobias Schreck, Vassilis Plachouras (+37 others)
2009 Encyclopedia of Database Systems  
Finding efficient and effective features for a given 3D repository is usually addressed by benchmarking.  ...  Consequently, there is a strong need to research and develop technology to support the effective retrieval of 3D object data from 3D repositories.  ...  Given effective retrieval capabilities, the re-usage of content from existing repositories can be supported for a more efficient production processes [5] .  ... 
doi:10.1007/978-0-387-39940-9_161 fatcat:cdol5hhjnzapbdu6p3tlms5l34

Feature-Based 3D Object Retrieval [chapter]

Benjamin Bustos, Tobias Schreck
2017 Encyclopedia of Database Systems  
Finding efficient and effective features for a given 3D repository is usually addressed by benchmarking.  ...  Consequently, there is a strong need to research and develop technology to support the effective retrieval of 3D object data from 3D repositories.  ...  Given effective retrieval capabilities, the re-usage of content from existing repositories can be supported for a more efficient production processes [5] .  ... 
doi:10.1007/978-1-4899-7993-3_161-2 fatcat:ojwkaqvbgzhrxasplmfm4r3a54

Analysis of the Effectiveness-Efficiency Dependence for Image Retrieval

Martin Heczko, Daniel A. Keim, Roger Weber
2000 DELOS Workshops / Conferences  
To this end, we define a benchmark including a measure for the efficiency and the effectiveness of a feature.  ...  In other words, an improvement in effectiveness leads to a deterioration of performance and vice versa.  ...  On the other hand, database researchers have develop efficient index structure for the nearest-neighbor search problem without considering the effectiveness of the retrieval.  ... 
dblp:conf/delos/HeczkoKW00 fatcat:x2b76xttnfaqppctgxwzwqna6a

RETRACTED: A multi-keyword parallel ciphertext retrieval scheme based on inverted index under the robot Distributed system [EAI Endorsed Scal Inf Syst (2022), Online First]

Jiyue Wang, Xi Zhang, Yonggang Zhu
2022 EAI Endorsed Transactions on Scalable Information Systems  
At the same time, for searchable encryption, it needs to balance the data security and retrieval efficiency.  ...  Through the segmentation of ciphertext inverted index, the block retrieval of inverted index is realized, which overcomes the limitation of single machine resources and improves the retrieval efficiency  ...  segmentation can effectively improve the retrieval efficiency.  ... 
doi:10.4108/eai.8-4-2022.173798 fatcat:7wj6spnugjap7ce3iz6ls3nbfe

A multi-keyword parallel ciphertext retrieval scheme based on inverted index under the robot distributed system

Jiyue Wang, Xi Zhang, Yonggang Zhu
2021 EAI Endorsed Transactions on Scalable Information Systems  
At the same time, for searchable encryption, it needs to balance the data security and retrieval efficiency.  ...  Through the segmentation of ciphertext inverted index, the block retrieval of inverted index is realized, which overcomes the limitation of single machine resources and improves the retrieval efficiency  ...  segmentation can effectively improve the retrieval efficiency.  ... 
doi:10.4108/eai.17-12-2021.172438 fatcat:ixjgjgqu3fgzjkhf4hajn3w6m4

RPT: Effective and Efficient Retrieval of Program Translations from Big Code [article]

Binger Chen, Ziawasch Abedjan
2021 arXiv   pre-print
Furthermore, we present our index structure and hierarchical filtering mechanism for efficient code retrieval from a Big Code database.  ...  However, existing code retrieval techniques are not designed for cross-language code retrieval.  ...  CONCLUSION AND FUTURE WORK We proposed Rpt, a code-retrieval approach to support program translation with Big Code, which is competitive with existing translation methods.  ... 
arXiv:2103.12797v1 fatcat:de2lurjhwjcxdpisszfwumoizu

Efficiency and effectiveness of query processing in cluster-based retrieval

Fazli Can, Ismail Sengör Altingövde, Engin Demir
2004 Information Systems  
Our research shows that for large databases, without considerable additional storage overhead, cluster-based retrieval (CBR) can compete with the time efficiency and effectiveness of the inverted index-based  ...  This study provides CBR efficiency and effectiveness experiments using the largest corpus in an environment that employs no user interaction or user behavior assumption for clustering. r  ...  Ozdal, and Atacan Conduroglu of Bilkent University for their support of the project. We greatly appreciate the TREC 4 CD and other information made available by NIST (http://trec.nist.gov/).  ... 
doi:10.1016/s0306-4379(03)00062-0 fatcat:bn5xke6a7fbu7n4wrflh2ubczy

Addressing CBIR efficiency, effectiveness, and retrieval subjectivity simultaneously

Ruofei Zhang, Zhongfei (Mark) Zhang
2003 Proceedings of the 5th ACM SIGMM international workshop on Multimedia information retrieval - MIR '03  
a region based approach to improving the retrieval effectiveness and robustness (2) development of a new hierarchical indexing structure and the corresponding Hierarchical, Elimination-based A* Retrieval  ...  algorithm (HEAR) to significantly improve the retrieval efficiency without sacrificing the retrieval effectiveness; it is shown that HEAR is guaranteed to deliver a logarithm search in the average case  ...  While the majority of the literature in CBIR focuses on the indexing and retrieval effectiveness, much less attention is paid to the indexing and retrieval efficiency issue.  ... 
doi:10.1145/973264.973276 dblp:conf/mir/ZhangZ03 fatcat:cuyozfrayrhutgquhlfe5ecfuy
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