Filters








38,240 Hits in 3.8 sec

Automatic image dataset construction with multiple textual metadata

Yazhou Yao, Jian Zhang, Fumin Shen, Xiansheng Hua, Jingsong Xu, Zhenmin Tang
2016 2016 IEEE International Conference on Multimedia and Expo (ICME)  
Internet for given queries.  ...  A novel image dataset construction framework is proposed by employing multiple textual metadata.  ...  We carry three quantitative evaluations for the learned query expansions and Image dataset.  ... 
doi:10.1109/icme.2016.7552988 dblp:conf/icmcs/YaoZSHXT16 fatcat:lmmpagvxmradbdplwafvr6feru

A new web-supervised method for image dataset constructions

Yazhou Yao, Jian Zhang, Fumin Shen, Xiansheng Hua, Jingsong Xu, Zhenmin Tang
2017 Neurocomputing  
A novel automatic image dataset construction framework is proposed by employing multiple query expansions.  ...  The goal of this work is to automatically collect a large number of highly relevant images from Internet for given queries.  ...  We carry a quantitative evaluation for the nearest query expansions by comparing it with method [16] .  ... 
doi:10.1016/j.neucom.2016.07.066 fatcat:stgxtjouyzberhab7htgthk7am

A supervised term ranking model for diversity enhanced biomedical information retrieval

Bo Xu, Hongfei Lin, Liang Yang, Kan Xu, Yijia Zhang, Dongyu Zhang, Zhihao Yang, Jian Wang, Yuan Lin, Fuliang Yin
2019 BMC Bioinformatics  
The model is learned through a supervised query expansion process for term refinement. Based on the model, the most relevant and diversified terms are selected to enrich the original query.  ...  Moreover, our method provides a general framework for improving biomedical retrieval performance, and can be used as the basis for future work.  ...  Availability of data and materials  ... 
doi:10.1186/s12859-019-3080-2 pmid:31787087 pmcid:PMC6886246 fatcat:ikcldl4fjbg5bkqatdqcyvhegy

SynSetExpan: An Iterative Framework for Joint Entity Set Expansion and Synonym Discovery [article]

Jiaming Shen and Wenda Qiu and Jingbo Shang and Michelle Vanni and Xiang Ren and Jiawei Han
2020 arXiv   pre-print
Extensive experiments on the SE2 dataset and previous benchmarks demonstrate the effectiveness of SynSetExpan for both entity set expansion and synonym discovery tasks.  ...  Meanwhile, the set expansion model, being able to determine whether an entity belongs to a semantic class, can generate pseudo training data to fine-tune the synonym discovery model towards better accuracy  ...  We thank anonymous reviewers for valuable and insightful feedback.  ... 
arXiv:2009.13827v1 fatcat:padu4xlmdjcplmr5zndnfeumaq

Towards a Semantically Driven E-learning Framework

Suhare M., Imtiaz Hussain, Muazzam Ahmed
2019 International Journal of Computer Applications  
The proposed system is evaluated on an indigenous medium-sized corpus (2600 documents) in terms of standard accuracy measures for IR.  ...  In this study, a semantically oriented ontology-based personalized framework is proposed for effective e-learning.  ...  They developed their spatial ontologybased query expansion framework for IR in tourism domain and found that it is an effective approach for better IR.  ... 
doi:10.5120/ijca2019919510 fatcat:ilvca3rx5bhlrdhethmupj5oqm

Towards robust query expansion

Mattan Winaver, Oren Kurland, Carmel Domshlak
2007 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '07  
originally proposed for evaluating the performance of using the original query, or for deciding whether to employ expansion at all.  ...  Given a query, we create a set of language models representing different forms of its expansion by varying the parameters' values of some expansion method; then, we select a single model using criteria  ...  Acknowledgments We thank the anonymous reviewers for their comments.  ... 
doi:10.1145/1277741.1277880 dblp:conf/sigir/WinaverKD07 fatcat:trlqx2bsajaivpdpiqski6ib2m

Indri at TREC 2004: Terabyte Track

Donald Metzler, Trevor Strohman, Howard R. Turtle, W. Bruce Croft
2004 Text Retrieval Conference  
In addition, a number of optimization procedures for efficient query processing are explained.  ...  We describe our approaches to the Terabyte Track, all of which involved automatically constructing structured queries from the title portions of the TREC topics.  ...  Any opinions, findings and conclusions or recommendations expressed in this material are the author(s) and do not necessarily reflect those of the sponsor.  ... 
dblp:conf/trec/MetzlerSTC04 fatcat:ntojfwj4rbgljplsmhpq3xteoa

Terminology Retrieval: Towards a Synergy between Thesaurus and Free Text Searching [chapter]

Anselmo Peñas, Felisa Verdejo, Julio Gonzalo
2002 Lecture Notes in Computer Science  
Although terminology retrieval doesn't make use of them, controlled vocabularies become an appropriate framework for terminology retrieval evaluation.  ...  The Automatic Terminology Extraction task, which is used for thesauri construction, shifts to a searching of terminology and becomes an information retrieval task: Terminology Retrieval.  ...  Thesaurus mono-lexical terms permit the coverage evaluation of linguistic resources used in the expansion and translation of query words. Qualitative evaluation.  ... 
doi:10.1007/3-540-36131-6_70 fatcat:u5ktslpfaffyrg5wku43vqb4eq

Leveraging semantic resources in diversified query expansion

Adit Krishnan, Deepak P., Sayan Ranu, Sameep Mehta
2017 World wide web (Bussum)  
In this paper, we consider the usage of semantic resources and tools to arrive at improved methods for diversified query expansion.  ...  query expansion.  ...  Framework for using semantic resources in diversified query expansion We now outline our three-phase skeletal framework for diversified query expansion that we base our methods on.  ... 
doi:10.1007/s11280-017-0468-7 fatcat:k6csjhijozhyzh6bpyckj5wjvm

Fast object search on road networks

Ken C. K. Lee, Wang-Chien Lee, Baihua Zheng
2009 Proceedings of the 12th International Conference on Extending Database Technology Advances in Database Technology - EDBT '09  
In this paper, we present ROAD, a general framework to evaluate Location-Dependent Spatial Queries (LDSQ)s that searches for spatial objects on road networks.  ...  for various queries, and (iv) incremental update techniques for framework maintenance in presence of object and network changes.  ...  PERFORMANCE EVALUATION This section evaluates our proposed ROAD framework in terms of indexing overhead, maintenance overhead, and query performance.  ... 
doi:10.1145/1516360.1516476 dblp:conf/edbt/LeeLZ09 fatcat:ibihsetr55cz3b3uptzxg3mmb4

Single-Query Motion Planning with Utility-Guided Random Trees

Brendan Burns, Oliver Brock
2007 Engineering of Complex Computer Systems (ICECCS), Proceedings of the IEEE International Conference on  
This algorithm guides expansion towards regions of maximum utility based on local characteristics of state space.  ...  To address this challenge, we present a utility-guided algorithm for the online adaptation of the random tree expansion strategy.  ...  Now, the state q ′ obtained by the expansion step itself is used for expansion. The expansion direction d is given by the direction towards the closest node of the other tree.  ... 
doi:10.1109/robot.2007.363983 dblp:conf/icra/BurnsB07 fatcat:7ykzyh5t2bbvtpqxlzskknkvwu

Constructive Second-Order Proofs in Logical Databases

Michel de Rougemont
1987 International Joint Conference on Artificial Intelligence  
To an inductive definition of a predicate P on a class K corresponds a uniform proof of P i.e a function which for each structure U defines a proof of P in U  ...  The constructive second-order proofs that we study are associated with inductive definitions on classes of finite structures, where each structure represents a database state.  ...  In the case of tc(0,l), the computation leads to computing The query evaluates to false onand to true on G2(n) Let us compare the proofs generated by these two approaches Logic programs: evaluates to no  ... 
dblp:conf/ijcai/Rougemont87 fatcat:ohknvjiuu5abhidwfy6pcrq4pe

Domain Specific Data Retrieval on the Semantic Web [chapter]

Tuukka Ruotsalo
2012 Lecture Notes in Computer Science  
Compared to a baseline, where no reasoning or query expansion is used, experimental results show up to 76% improvement when an optimal combination of reasoning and query expansion is used.  ...  We propose an indexing structure, a ranking method, and a way to incorporate reasoning and query expansion in the framework.  ...  The Wu-Palmer measure can be used to dynamically control the query expansion level towards an index of concepts that form a tree. Such a tree can be constructed in many different ways.  ... 
doi:10.1007/978-3-642-30284-8_35 fatcat:bdhdmala7zf5tex3p35c5apdem

A Context-Awareness Modeling User Profile Construction Method for Personalized Information Retrieval System

Jee Hyun Kim, Qian Gao, Young Im Cho
2014 International Journal of Fuzzy Logic and Intelligent Systems  
Therefore, the development of a common big data platform that is suitable for efficiently processing various data types is needed. Furthermore, users often possess more than one intelligent device.  ...  Effective information gathering and retrieval of the most relevant web documents on the topic of interest is difficult due to the large amount of information that exists in various formats.  ...  Acknowledgments The present research has been conducted by the Research Grant of Seoil University in 2013.  ... 
doi:10.5391/ijfis.2014.14.2.122 fatcat:gpiciwtqcrgpjpblzf5w6i76ou

Latent concept expansion using markov random fields

Donald Metzler, W. Bruce Croft
2007 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '07  
We evaluate our technique against relevance models, a state-of-the-art language modeling query expansion technique.  ...  Furthermore, the use of arbitrary features within the model provides a powerful framework for going beyond simple term occurrence features that are implicitly used by most other expansion techniques.  ...  Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect those of the sponsor.  ... 
doi:10.1145/1277741.1277796 dblp:conf/sigir/MetzlerC07 fatcat:zd4uzoxssje5reuvwbfc4j2jgi
« Previous Showing results 1 — 15 out of 38,240 results