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Towards annotation of video as part of search

Towards annotation of video as part of search

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16th international Multimedia Modeling conference on advances in Multimedia Modeling, MMM 2010

作者： Halvey, Martin Jose, Joemon M. Department of Computing Science University of Glasgow 18 Lilybank Gardens Glasgow G12 8QQ United Kingdom

ISBN: (纸本)3642113001

Search for multimedia is hampered by both the lack of quality annotations and a quantity of annotations. In recent years there has been a growth in multimedia search services that emphasis interactivity between the user and the interface. Some of these systems present an as yet untapped resource for providing annotations for video. In this paper, we investigate the use of a new innovative grouping interface for video search to provide additional annotations for video collections. the annotations provided are an inherent part of the search interface, thus providing less overhead for the user in providing annotations. In addition we believe that the users are more likely to provide high quality annotations as the annotations are used to aid the users search. Specifically we investigate the annotations provided as part of two evaluations of our system;the results of these evaluations also demonstrate the utility and benefit of a grouping interface for video search [8]. the results of the analysis presented in this paper demonstrate the benefit of this implicit approach for providing additional high quality annotations for video collections. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Quality control

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Story-based retrieval by learning and measuring the concept-based and content-based similarity

Story-based retrieval by learning and measuring the concept-...

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16th international Multimedia Modeling conference on advances in Multimedia Modeling, MMM 2010

作者： Peng, Yuxin Xiao, Jianguo Institute of Computer Science and Technology Peking University China

ISBN: (纸本)3642113001

this paper proposes a new idea and approach for the story-based news video retrieval, i.e. clip-based retrieval. Generally speaking, clip-based retrieval can be divided into two phases: feature representation and similarity ranking. the existing methods only adopt the content-based features and pairwise similarity measure for clip-based retrieval. the main deficiencies are: (1) In feature representation, the concept-based features is still not used to represent the content of video clip;(2) In similarity ranking, the learning-based method is not considered to rank the similar clips with the query. To address the above issues, in this paper, on one hand, we consider jointly the concept-based and content-based features to represent adequately the news story;on the other hand, we consider jointly the learning classifier and pairwise similarity measure to rank effectively the similar stories with the query. Both are the main novelty of this paper. the model construction of learning classifier for story-based retrieval is our focus, which is constructed as follows: given one query story, we can use its all keyframes as the set of positive examples of its topic, and the retrieval data set in which most of the keyframes are irrelevant to the topic as the candidates of negative examples. the multi-bag SVM is employed to compute the score of all keyframes in the data set, and then the stories in the data set are ranked according to the average score of their keyframes, which reflects their similarity with the query story. We compare and evaluate the performance of our approach on 1334 stories from TRECVID 2005 benchmark, and the results show our approach can achieve superior performance. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Benchmarking

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Semantic entity-relationship model for large-scale multimedia news exploration and recommendation

Semantic entity-relationship model for large-scale multimedi...

引用

16th international Multimedia Modeling conference on advances in Multimedia Modeling, MMM 2010

作者： Luo, Hangzai Cai, Peng Gong, Wei Fan, Jianping Shanghai Key Lab of Trustworthy Computing East China Normal University China Department of Computer Science University of North Carolina at Charlotte United States

ISBN: (纸本)3642113001

Even though current news websites use large amount of multimedia materials including image, video and audio, the multimedia materials are used as supplementary to the traditional text-based framework. As users always prefer multimedia, the traditional text-based news exploration interface receives more and more criticisms from both journalists and general audiences. To resolve this problem, we propose a novel framework for multimedia news exploration and analysis. the proposed framework adopts our semantic entity-relationship model to model the multimedia semantics. the proposed semantic entity-relationship model has three nice properties. First, it is able to model multimedia semantics with visual, audio and text properties in a uniform framework. Second, it can be extracted via existing semantic analysis and machine learning algorithms. third, it is easy to implement sophisticated information mining and visualization algorithms based on the model. Based on this model, we implemented a novel multimedia news exploration and analysis system by integrating visual analytics and information mining techniques. Our system not only provides higher efficiency on news exploration and retrieval but also reveals extra interesting information that is not available on traditional news exploration systems. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Learning algorithms

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A study on sampling strategies in space-time domain for recognition applications

A study on sampling strategies in space-time domain for reco...

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16th international Multimedia Modeling conference on advances in Multimedia Modeling, MMM 2010

作者： Dikmen, Mert Lin, Dennis J. Del Pozo, Andrey Cao, Liang Liang Fu, Yun Huang, thomas S. Department of Electrical and Computer Engineering Beckman Institute University of Illinois at Urbana-Champaign 405 N Mathews Urbana IL 61801 United States 201 Bell Hall Buffalo NY 14260-2000 United States

ISBN: (纸本)3642113001

We investigate the relative strengths of existing space-time interest points in the context of action detection and recognition. the interest point operators evaluated are an extension of the Harris corner detector (Laptev et al. [1]), a space-time Gabor filter (Dollar et al. [2]), and randomized sampling on the motion boundaries. In the first level of experiments we study the low level attributes of interest points such as stability, repeatability and sparsity with respect to the sources of variations such as actors, viewpoint and action category. In the second level we measure the discriminative power of interest points by extracting generic region descriptors around the interest points (1. histogram of optical flow[3], 2. motion history images[4], 3. histograms of oriented gradients[3]). then we build a simple action recognition scheme by constructing a dictionary of codewords and learning a recognition system using the histograms of these codewords. We demonstrate that although there may be merits due to the structural information contained in the interest point detections, ultimately getting as many data samples as possible, even with random sampling, is the decisive factor in the interpretation of space-time data. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Gabor filters

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Transformational breathing between present and past: Virtual exhibition system of the Mao-Kung ting

Transformational breathing between present and past: Virtual...

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16th international Multimedia Modeling conference on advances in Multimedia Modeling, MMM 2010

作者： Hsieh, Chun-Ko Tong, Xin Hung, Yi-Ping Chen, Chia-Ping Ko, Ju-Chun Yu, Meng-Chieh Lin, Han-Hung Wu, Szu-Wei Chung, Yi-Yu Lin, Liang-Chun Lee, Ming-Sui Chen, Chu-Song Wang, Jiaping Lin, Quo-Ping Liu, I-Ling Graduate Institute of Networking and Multimedia National Taiwan University No. 1 Sec. 4 Roosevelt Road Taipei 10617 Taiwan Microsoft Research Asia 5F Beijing Sigma Center 49 Zhichun Road Beijing China National Palace Museum 221 Chih-shan Rd. Sec.2 Taipei 111 Taiwan Institute of Information Science Academic Sinica 128 Academia Road Section 2 Nankang Taipei 115 Taiwan

ISBN: (纸本)3642113001

the Mao-Kung Ting is one of the most precious artifacts in the National Palace Museum. Having five-hundred-character inscription cast inside, the Mao-Kung Ting is regarded as a very important historical document, dating back to 800 B.C.. Motivated by revealing the great nature of the artifact and interpreting it into a meaningful narrative, we have proposed an innovative Virtual Exhibition System to facilitate communication between the Mao-Kung Ting and audiences. Consequently, we develop the Virtual Exhibition system into the following scenarios: "Breathing through the History" and "View-dependent display". © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Virtual reality

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Dealing with cultural differences in a 3D virtual classroom: A case study of constructing a virtual Tower of Babel

Dealing with cultural differences in a 3D virtual classroom:...

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7th iasted international conference on Web-Based Education, WBE 2008

作者： Prasolova-Førland, Ekaterina Wyeld, theodor G. Chang, Teng-Wen Norwegian University of Science and Technology Norway Swinburne University of Tech. Melbourne Australia National Yunlin University of Science and Technology Taiwan

ISBN: (纸本)9780889867239

the collaboration project described in this paper involved students across three cooperating institutions, on three different continents in different time zones, building a virtual Tower of Babel in a 3D Collaborative Virtual Environment (3D CVE). Much Information and Communication technology work today involves international collaboration. this requires cross-cultural understandings with one's co-collaborators, but there are few opportunities for this to occur in a pedagogical setting. therefore, this paper outlines a pedagogicallyoriented case study of the use of a 3D CVE as a multicultural collaborative classroom.

关键词： computer aided instruction

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the development of educational materials for the study of architecture using computer game technology

The development of educational materials for the study of ar...

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7th iasted international conference on Web-Based Education, WBE 2008

作者： Price, C.B. University of Worcester Henwick Grove WR2 6AJ United Kingdom

ISBN: (纸本)9780889867239

computer game technology provides us with the tools to create web-based educational materials for autonomous and collaborative learning. At Worcester, we have researched the use of this technology in various educational contexts. this paper reports one such study;the use of the commercial game engine "Unreal Tournament 2004" (UT2004) to produce materials suitable for education of Architects. We map the concepts and principles of Architectural Design onto the affordances (development tools) provided by UT2004, leading to a systematic procedure for the realization of buildings and urban environments using this game engine. A theory for the production of web-based learning materials which supports both autonomous and collaborative learning is developed. A heuristic evaluation of our materials, used with second-year students is presented. Associated web-pages provide on-line materials for delegates.

关键词： computer games

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Energy landscape for hopfield network programmed with program clauses

Energy landscape for hopfield network programmed with progra...

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4th iasted international conference on advances in computer science and technology, ACST 2008

作者： Sathasivam, Saratha School of Mathematical Sciences University of Science Malaysia Penang Malaysia

ISBN: (纸本)9780889867307

We show that the energy landscape of a Little-Hopfield neural network programmed with program clauses is rather flat. We argue that this should be so given the characteristics of program clauses and show through computer simulations that this is indeed so. We discuss satisfiability of program clauses with respect to logic programming in relation to this result.

关键词： Formal logic

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Distributed search of learning objects into the Lor@ architecture

Distributed search of learning objects into the Lor@ archite...

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7th iasted international conference on Web-Based Education, WBE 2008

作者： Berenguer, Nuria Gomis Paton, Felipe Casanova Navarro, Leonel Iriarte Peco, Pedro Pernías Such, Manuel Marco Department of Languages and Computer Science University of Alicante Carretera San Vicente del Raspeig s/n 03690 San Vicente del Raspeig - Alicante Spain Department of Computer Science Agrarian University of Havana Autopista Nacional y Carretera de Tapaste San José de las Lajas La Habana Cuba. Apartado 18-19 Cuba

ISBN: (纸本)9780889867239

In this article we have studied the different types of current educational material searchers to try and discover their deficiencies and then try to solve them. With this aim we suggest a distributed search model for learning objects according to their metadata. We will also present an implementation of such model in Lor@ architecture.

关键词： Distributed search E-learning Free software Learning objects Open content

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Entropy representation of memory access characteristics and cache performance

Entropy representation of memory access characteristics and ...

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4th iasted international conference on advances in computer science and technology, ACST 2008

作者： Yokota, Takashi Ootsu, Kanemitsu Baba, Takanobu Department of Information Science Utsunomiya University 7-1-2 Yoto Utsunomiya Tochigi 321-8585 Japan

ISBN: (纸本)9780889867307

Cache memories play important roles in modern computer architecture. Performance of a cache memory largely depends on spatial and temporal locality in memory access. Highly local access results good cache performance. In this paper, we discuss locality features in memory access and cache performance. We first discuss distribution function of memory access, and then, introduce an entropy concept. We define two new entropies based on memory access behavior and cache access. Preliminary evaluation results of cache performance and entropy values are reported.

关键词： Entropy

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