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1.
In spite of significant improvements in video data retrieval, a system has not yet been developed that can adequately respond
to a user’s query. Typically, the user has to refine the query many times and view query results until eventually the expected
videos are retrieved from the database. The complexity of video data and questionable query structuring by the user aggravates
the retrieval process. Most previous research in this area has focused on retrieval based on low-level features. Managing
imprecise queries using semantic (high-level) content is no easier than queries based on low-level features due to the absence
of a proper continuous distance function. We provide a method to help users search for clips and videos of interest in video
databases. The video clips are classified as interesting and uninteresting based on user browsing. The attribute values of clips are classified by commonality, presence, and frequency within each
of the two groups to be used in computing the relevance of each clip to the user’s query. In this paper, we provide an intelligent
query structuring system, called I-Quest, to rank clips based on user browsing feedback, where a template generation from the set of interesting and uninteresting
sets is impossible or yields poor results.
相似文献
Ramazan Savaş Aygün (Corresponding author)Email: |
2.
Content-based retrieval of Flash™ movies: research issues,generic framework,and future directions 总被引:1,自引:0,他引:1
As a prevailing web media format, nowadays Flash™ movies are created, delivered, and viewed by over millions of users in their
daily experiences with the Internet. However, issues regarding the indexing and retrieval of Flash movies are unfortunately
overlooked by the research community, which severely restrict the utilization of the extremely valuable Flash resource. A
close examination reveals that the intrinsic complexity of a Flash movie, including its heterogeneous media components, its
dynamic nature, and user interactivity, makes content-based Flash retrieval a host of research issues not thoroughly addressed
by the existing techniques. As the first endeavor in this area, we propose a generic framework termed as FLAME (FLash Access and Management Environment) embodying a 3-layer structure that addresses the representation, indexing, and retrieval of Flash movies by mining and understanding
of the movie content. An experimental prototype for Flash retrieval is implemented to verify the feasibility and effectiveness
of FLAME, and future research directions on Flash management and retrieval are discussed in details.
相似文献
Qing Li (Corresponding author)Email: |
3.
Design information retrieval: a thesauri-based approach for reuse of informal design information 总被引:1,自引:0,他引:1
Information is integral to the engineering design process, and gaining access to design knowledge is critical to effective
design decision-making. This paper considers the indexing and retrieval of informal, unstructured information captured from
electronic design logbooks. One of the key observations of informal design information is its evolutionary nature over time.
While this characteristic makes informal information a rich source for reuse, it also makes it difficult to employ traditional
information retrieval (IR) approaches. The work described in this paper is based on a framework developed specifically for
the information handling requirements of designers. This manual method for indexing information is adapted to meet the evolutionary
nature of design through the development of thesauri for design context. Several approaches to building thesauri are examined,
including manual and automated methods. It is found that manual methods provide a high level of IR performance, but also have
high overhead requirements. Machine methods, however, may provide a viable, low overhead alternative.
相似文献
Maria C. YangEmail: |
4.
Bug fixing has a key role in software quality evaluation. Bug fixing starts with the bug localization step, in which developers use textual bug information to find location of source codes which have the bug. Bug localization is a tedious and time consuming process. Information retrieval requires understanding the programme's goal, coding structure, programming logic and the relevant attributes of bug. Information retrieval (IR) based bug localization is a retrieval task, where bug reports and source files represent the queries and documents, respectively. In this paper, we propose BugCatcher, a newly developed bug localization method based on multi‐level re‐ranking IR technique. We evaluate BugCatcher on three open source projects with approximately 3400 bugs. Our experiments show that multi‐level reranking approach to bug localization is promising. Retrieval performance and accuracy of BugCatcher are better than current bug localization tools, and BugCatcher has the best Top N, Mean Average Precision (MAP) and Mean Reciprocal Rank (MRR) values for all datasets. 相似文献
5.
José M. Martínez Julián Cabrera Jesús Bescós Guillermo Cisneros José M. Ménendez 《Multimedia Tools and Applications》2003,19(3):203-240
This paper presents an approach to a flexible model for building an indexing subsystem based on metadata: the MetaInformation Subsystem (MISS). The MISS model consists of a software architecture, a system architecture, and an information model. The software architecture relies on a model (based on four levels: database, storage & retrieval, functional core, and application) used for the development of applications for information systems to search in and populate a database. The system architecture consists of a Browsing Application and a Populating Application, both built on top of a Metadata Database via the proposed software architecture. The Browsing Application is in charge of managing the user's interaction with the subsystem (navigation, search, and retrieval), whereas the Populating Application provides a mechanism to insert metadata and data views into the MISS databases. Finally, the proposed information model (the Metadata Information Model—MIM) consists of the metadata content, its structure, and the representation model, being in connection with the MPEG-7 standardisation work and providing impact to this Forum. In order to validate it, MISS has been used in the implementation of the Browsing and Retrieval System of the HYPERMEDIA ACTS 361 Project Continuous Audiovisual Market in Europe (publicly demonstrated in several workshops and in Telecom Americas 2000), obtaining very good results in terms of functionality, flexibility and reliability. 相似文献
6.
Bayesian network based business information retrieval model 总被引:3,自引:3,他引:0
The quality of business information can significantly affect the operation level of enterprise. This paper analyses the problem
of business information retrieval (BIR). A Bayesian Network Based business information retrieval model (BN-BIRM) is proposed
by means of Bayesian network (BN) and information retrieval (IR) theory and a method for query adaptation is presented. In
this model the customized query requirement of enterprise (CQR) is expressed in terms of the predefined illustrative documents
related to business domain. The similarities between the documents and the query are evaluated with the conditional probabilities
among the nodes in the BN. In the experiments, BN-BIRM is compared with the Belief Network model based on vector space model
(VSM) ranking strategy and the Inference Network model based on TF-IDF ranking strategy. The experimental results show that
BN-BIRM is effective for collecting business information on a large scale.
相似文献
Zheng WangEmail: |
7.
8.
Fabio Crestani 《Journal of Intelligent Information Systems》2003,20(2):161-180
This paper presents the design and the current prototype implementation of an interactive vocal Information Retrieval system that can be used to access articles of a large newspaper archive using a telephone. The implementation of the system highlights the limitations of current voice information retrieval technology, in particular of speech recognition and synthesis. We present our evaluation of these limitations and address the feasibility of intelligent interactive vocal information access systems. 相似文献
9.
Charalampos Konstantopoulos Basilis Mamalis Grammati Pantziou Damianos Gavalas 《The Journal of supercomputing》2009,48(3):286-318
In this paper, we present efficient, scalable, and portable parallel algorithms for the off-line clustering, the on-line retrieval
and the update phases of the Text Retrieval (TR) problem based on the vector space model and using clustering to organize
and handle a dynamic document collection. The algorithms are running on the Coarse-Grained Multicomputer (CGM) and/or the Bulk Synchronous Parallel (BSP) model which are two models that capture within a few parameters the characteristics of the parallel machine. To the best
of our knowledge, our parallel retrieval algorithms are the first ones analyzed under these specific parallel models. For
all the phases of the proposed algorithms, we analytically determine the relevant communication and computation cost thereby
formally proving the efficiency of the proposed solutions. In addition, we prove that our technique for the on-line retrieval
phase performs very well in comparison to other possible alternatives in the typical case of a multiuser information retrieval
(IR) system where a number of user queries are concurrently submitted to an IR system. Finally, we discuss external memory
issues and show how our techniques can be adapted to the case when processors have limited main memory but sufficient disk
capacity for holding their local data.
相似文献
Damianos GavalasEmail: |
10.
An empirical analysis of information retrieval based concept location techniques in software comprehension 总被引:2,自引:1,他引:1
Brendan Cleary Chris Exton Jim Buckley Michael English 《Empirical Software Engineering》2009,14(1):93-130
Concept location, the problem of associating human oriented concepts with their counterpart solution domain concepts, is a
fundamental problem that lies at the heart of software comprehension. Recent research has attempted to alleviate the impact
of the concept location problem through the application of methods drawn from the information retrieval (IR) community. Here
we present a new approach based on a complimentary IR method which also has a sound basis in cognitive theory. We compare
our approach to related work through an experiment and present our conclusions. This research adapts and expands upon existing
language modelling frameworks in IR for use in concept location, in software systems. In doing so it is novel in that it leverages
implicit information available in system documentation. Surprisingly, empirical evaluation of this approach showed little
performance benefit overall and several possible explanations are forwarded for this finding.
相似文献
Michael EnglishEmail: |
11.
12.
Zhumin CHEN Xueqi CHENG Shoubin DONG Zhicheng DOU Jiafeng GUO Xuanjing HUANG Yanyan LAN Chenliang LI Ru LI Tie-Yan LIU Yiqun LIU Jun MA Bing QIN Mingwen WANG Jirong WEN Jun XU Min ZHANG Peng ZHANG Qi ZHANG 《Frontiers of Computer Science》2021,15(1):151601-211
During a two day strategic workshop in February 2018,22 information retrieval researchers met to discuss the future challenges and opportunities within the field.The outcome is a list of potential research directions,project ideas,and challenges.This report describes the major conclusions we have obtained during the workshop.A key result is that we need to open our mind to embrace a broader IR field by rethink the definition of information,retrieval,user,system,and evaluation of IR.By providing detailed discussions on these topics,this report is expected to inspire our IR researchers in both academia and industry,and help the future growth of the IR research community. 相似文献
13.
Socrates Dimitriadis Kostas Marias Stelios C. Orphanoudakis 《Multimedia Tools and Applications》2007,33(1):57-72
Efficient and possibly intelligent image retrieval is an important task, often required in many fields of human activity.
While traditional database indexing techniques exhibit a remarkable performance in textual information retrieval current research
in content-based image retrieval is focused on developing novel techniques that are biologically motivated and efficient.
It is well known that humans have a remarkable ability to process visual information and to handle the volume and complexity
of such information quite efficiently. In this paper, we present a content-based image retrieval platform that is based on
a multi-agent architecture. Each agent is responsible for assessing the similarity of the query image to each candidate image
contained in a collection based on a specific primitive feature and a corresponding similarity criterion. The outputs of various
agents are integrated using one of several voting schemes supported by the system. The system’s performance has been evaluated
using various collections of images, as well as images obtained in specific application domains such as medical imaging. The
initial evaluation has yielded very promising results.
相似文献
Stelios C. OrphanoudakisEmail: |
14.
Akila Varadarajan Nilesh Patel Bruce Maxim William I. Grosky 《Multimedia Tools and Applications》2008,40(2):211-239
There has been increased interest on the impact of mobile devices such as PDAs and Tablet PCs in introducing new pedagogical
approaches and active learning experiences. We propose an intelligent system that efficiently addresses the inherent subjectivity
in student perception of note taking and information retrieval. We employ the idea of cross indexing the digital ink notes
with matching electronic documents in the repository. Latent Semantic Indexing is used to perform document and page level
indexing. Thus for each retrieved document, the user can go over to the relevant pages that match the query. Techniques to
handle problems such as polysemy (multiple meanings of a word) in large databases, document folding and no match for query
are discussed. We tested our system for its performance, usability and effectiveness in the learning process. The results
from the exploratory studies reveal that the proposed system provides a highly enhanced student learning experience, thereby
facilitating high test scores.
Akila Varadarajan is a Senior Software Engineer at Motorola, IL with the Mobile devices division. Prior joining Motorola, she was a Software development intern at Autodesk, MI and Graduate Research assistant at University of Michigan - Dearborn. She received her MS in Computer Engineering from University of Michigan in 2006 and her BS in Computer Engineering from Madurai Kamaraj University, India in 2003. She is interested in Mobile computing - specifically Human Factors of Mobile Computing, Information retrieval and pattern recognition. Nilesh Patel is Assistant Professor in the department of Computer Science and Engineering at Oakland University, MI. He received his PhD and MS in Computer Science from Wayne State University, MI in 1997 and 1993. He is interested in Multimedia Information Processing - specifically audio and video indexing, retrieval and event detection, Pattern Recognition, Distributed Data Mining in a heterogeneous environment, and Computer Vision with special interest in medical imaging. Dr. Patel has also served in the automotive sector for several years and developed interest in Telematics and Mobile Computing. Bruce Maxim has worked as a software engineer for the past 31 years. He is a member of the Computer and Information Science faculty at the University of Michigan-Dearborn since 1985. He serves as the computing laboratory supervisor and head of the undergraduate programs in Computer Science, Software Engineering, and Information Systems. He has created more than 15 Computer and Information Science courses dealing with software engineering, game design, artificial intelligence, user interface design, web engineering, software quality, and computer programming. He has authored or co-authored four books on programming and software engineering. He has most recently served on the pedagogy subcommittee for Software Engineering 2004 and contributed to the IDGA Game Curriculum Framework 2008 guidelines. William I. Grosky is currently Professor and Chair of the Department of Computer and Information Science at University of Michigan - Dearborn, Dearborn, Michigan. Prior to joining the University of Michigan in 2001, he was Professor and Chair of the Department of Computer Science at Wayne State University, Detroit, Michigan. Before joining Wayne State University in 1976, he was an Assistant Professor in the Department of Information and Computer Science at Georgia Tech, Atlanta, Georgia. He received his B.S. in Mathematics from MIT in 1965, his M.S. in Applied Mathematics from Brown University in 1968, and his Ph.D. in Engineering and Applied Science from Yale University in 1971. 相似文献
William I. GroskyEmail: |
Akila Varadarajan is a Senior Software Engineer at Motorola, IL with the Mobile devices division. Prior joining Motorola, she was a Software development intern at Autodesk, MI and Graduate Research assistant at University of Michigan - Dearborn. She received her MS in Computer Engineering from University of Michigan in 2006 and her BS in Computer Engineering from Madurai Kamaraj University, India in 2003. She is interested in Mobile computing - specifically Human Factors of Mobile Computing, Information retrieval and pattern recognition. Nilesh Patel is Assistant Professor in the department of Computer Science and Engineering at Oakland University, MI. He received his PhD and MS in Computer Science from Wayne State University, MI in 1997 and 1993. He is interested in Multimedia Information Processing - specifically audio and video indexing, retrieval and event detection, Pattern Recognition, Distributed Data Mining in a heterogeneous environment, and Computer Vision with special interest in medical imaging. Dr. Patel has also served in the automotive sector for several years and developed interest in Telematics and Mobile Computing. Bruce Maxim has worked as a software engineer for the past 31 years. He is a member of the Computer and Information Science faculty at the University of Michigan-Dearborn since 1985. He serves as the computing laboratory supervisor and head of the undergraduate programs in Computer Science, Software Engineering, and Information Systems. He has created more than 15 Computer and Information Science courses dealing with software engineering, game design, artificial intelligence, user interface design, web engineering, software quality, and computer programming. He has authored or co-authored four books on programming and software engineering. He has most recently served on the pedagogy subcommittee for Software Engineering 2004 and contributed to the IDGA Game Curriculum Framework 2008 guidelines. William I. Grosky is currently Professor and Chair of the Department of Computer and Information Science at University of Michigan - Dearborn, Dearborn, Michigan. Prior to joining the University of Michigan in 2001, he was Professor and Chair of the Department of Computer Science at Wayne State University, Detroit, Michigan. Before joining Wayne State University in 1976, he was an Assistant Professor in the Department of Information and Computer Science at Georgia Tech, Atlanta, Georgia. He received his B.S. in Mathematics from MIT in 1965, his M.S. in Applied Mathematics from Brown University in 1968, and his Ph.D. in Engineering and Applied Science from Yale University in 1971. 相似文献
15.
William W. Cohen 《Autonomous Agents and Multi-Agent Systems》1999,2(1):65-86
The degree to which information sources are pre-processed by Web-based information systems varies greatly. In search engines like Altavista, little pre-processing is done, while in knowledge integration systems, complex site-specific wrappers are used to integrate different information sources into a common database representation. In this paper we describe an intermediate point between these two models. In our system, information sources are converted into a highly structured collection of small fragments of text. Database-like queries to this structured collection of text fragments are approximated using a novel logic called WHIRL, which combines inference in the style of deductive databases with ranked retrieval methods from information retrieval (IR). WHIRL allows queries that integrate information from multiple Web sites, without requiring the extraction and normalization of object identifiers that can be used as keys; instead, operations that in conventional databases require equality tests on keys are approximated using IR similarity metrics for text. This leads to a reduction in the amount of human engineering required to field a knowledge integration system. Experimental evidence is given showing that many information sources can be easily modeled with WHIRL, and that inferences in the logic are both accurate and efficient. 相似文献
16.
在研究现有文本信息检索技术的基础上,设计了基于推理网络的文本检索模型.提出一种改进的推理算法,以实现从文档观察事件到索引词出现事件的推理,使新模型可以更全面地利用文本数据信息.最后通过一个推理网络实例来说明实现推理的数学过程. 相似文献
17.
The increasing stream of Web information available makes it ever more desirable of network users to retrieval interesting information efficiently.Obviously,AI can be made a good use in the information retrieval area.In this paper,the Intelligent Search Engine,Intelligent Browser,Intelligent Agent and Intelligent Information Push are introduced.Then the related key techniques are presented.At last,a framework of Intelligent Information Push System is discussed. 相似文献
18.
19.
As music can be represented symbolically, most of the existing methods extend some string matching algorithms to retrieve musical patterns in a music database. However, not all retrieved patterns are perceptually significant because some of them are, in fact, inaudible. Music is perceived in groupings of musical notes called streams. The process of grouping musical notes into streams is called stream segregation. Stream-crossing musical patterns are perceptually insignificant and should be pruned from the retrieval results. This can be done if all musical notes in a music database are segregated into streams and musical patterns are retrieved from the streams. Findings in auditory psychology are utilized in this paper, in which stream segregation is modelled as a clustering process and an adapted single-link clustering algorithm is proposed. Supported by experiments on real music data, streams are identified by the proposed algorithm with considerable accuracy.
相似文献
Man Hon WongEmail: |
20.
Simon Dobri?ek Jerneja Gros Bo?tjan Vesnicer Nikola Pave?i?#x; France Miheli?#xD; 《International Journal of Speech Technology》2003,6(3):301-309
Blind and visually-impaired people face many problems in interacting with information retrieval systems. State-of-the-art spoken language technology offers potential to overcome many of them. In the mid-nineties our research group decided to develop an information retrieval system suitable for Slovene-speaking blind and visually-impaired people. A voice-driven text-to-speech dialogue system was developed for reading Slovenian texts obtained from the Electronic Information System of the Association of Slovenian Blind and Visually Impaired Persons Societies. The evolution of the system is presented. The early version of the system was designed to deal explicitly with the Electronic Information System where the available text corpora are stored in a plain text file format without any, or with just some, basic non-standard tagging. Further improvements to the system became possible with the decision to transfer the available corpora to the new web portal, exclusively dedicated to blind and visually-impaired users. The text files were reformatted into common HTML/XML pages, which comply with the basic recommendations set by the Web Access Initiative. In the latest version of the system all the modules of the early version are being integrated into the user interface, which has some basic web-browsing functionalities and a text-to-speech screen-reader function controlled by the mouse as well. 相似文献