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It is our great pleasure to welcome you to the 1st Workshop on Multimodal Product Identification in Livestreaming and WAB Challenge - WAB 2021, which is held in conjunction with the ACM Multimedia 2021. The WAB Challenge and associated workshop is held to allow researchers to present their progress, communicate and co-develop novel ideas that potentially shape the future of multimodal retrieval. Based on the proposed multimodal product retrieval dataset named "Watch and Buy" (WAB), we launch WAB Challenge, which encourages participants to establish approaches to fully automatic detection and multimodal identification of products presented in real-world e-commerce livestreaming.The challenge attracted registrations of 587 teams from Asia, Europe, and North America. After preliminaries, the top 20 teams enroll in the semi-finals. After semi-finals, the top 10 teams enroll in the finals. Then based on end2end reproduced results and technical solution report, the final leaderboard was determined. The best model achieves the averaged F1 score of 0.69, which is 0.22 higher than the baseline model. All of the top-3 teams have a higher score than 0.6. For the call for papers part, the program committee accepted 5 papers, including 2 long papers and 3 short papers.

Information retrieval --- Manufactures --- Multimodal user interfaces (Computer systems)

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Artificial intelligence. Robotics. Simulation. Graphics --- Computer. Automation --- beeldverwerking --- grafische vormgeving

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Computer architecture. Operating systems --- Information systems --- Artificial intelligence. Robotics. Simulation. Graphics --- Computer. Automation --- beeldverwerking --- ICT (informatie- en communicatietechnieken) --- IR (information retrieval) --- grafische vormgeving --- multimedia --- informatiesystemen --- KI (kunstmatige intelligentie) --- computernetwerken

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Welcome to the proceedings of the 7th Paci?c-Rim Conference on Multimedia (PCM2006)heldatZhejiang University,Hangzhou,China,November2-4,2006. Following the success of the previous conferences, PCM 2000 in Sydney, PCM 2001 in Beijing, PCM 2002 in Hsinchu, PCM 2003 in Singapore, PCM 2004 in Tokyo, and PCM 2005 in Jeju, PCM 2006 again brought together researchers, developers, practitioners, and educators in the ?eld of multimedia from around the world. Both theoretical breakthroughs and practical systems were presented at the conference. There were sessions from multimedia retrieval to multimedia coding to multimedia security,coveringa wide spectrum of multimedia research. PCM2006featuredacomprehensiveprogramincludingkeynotetalks,regular paper presentations, and special sessions. We received 755 submissions and the number was the largest among all the PCMs. From such a large number of submissions,weacceptedonly116oralpresentations.Wekindlyacknowledgethe great support provided by the Program Committee members in the reviewing of submissions, as well as the additional reviewers who generously spent many hours. The many useful comments provided by the reviewing process are very useful to authors’ current and future research.

Multimedia systems --- Multimédia --- Congresses. --- Congrès --- Computer Science --- Engineering & Applied Sciences --- Computer science. --- Computer communication systems. --- Information storage and retrieval. --- Multimedia information systems. --- Image processing. --- Application software. --- Computer Science. --- Computer Applications. --- Multimedia Information Systems. --- Information Storage and Retrieval. --- Computer Communication Networks. --- Information Systems Applications (incl. Internet). --- Image Processing and Computer Vision. --- Application computer programs --- Application computer software --- Applications software --- Apps (Computer software) --- Computer software --- Pictorial data processing --- Picture processing --- Processing, Image --- Imaging systems --- Optical data processing --- Computer-based multimedia information systems --- Multimedia computing --- Multimedia information systems --- Multimedia knowledge systems --- Information storage and retrieval systems --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Data transmission systems --- Digital communications --- Electronic systems --- Information networks --- Telecommunication --- Cyberinfrastructure --- Electronic data processing --- Network computers --- Informatics --- Science --- Distributed processing --- Multimedia systems. --- Information storage and retrieva. --- Computer vision. --- Machine vision --- Vision, Computer --- Artificial intelligence --- Image processing --- Pattern recognition systems --- Information storage and retrieval systems. --- Automatic data storage --- Automatic information retrieval --- Automation in documentation --- Computer-based information systems --- Data processing systems --- Data storage and retrieval systems --- Discovery systems, Information --- Information discovery systems --- Information processing systems --- Information retrieval systems --- Machine data storage and retrieval --- Mechanized information storage and retrieval systems --- Computer systems --- Electronic information resources --- Data libraries --- Digital libraries --- Information organization --- Information retrieval --- Optical data processing. --- Optical computing --- Visual data processing --- Bionics --- Integrated optics --- Photonics --- Computers --- Optical equipment

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Welcome to the International Workshop on Multimedia Content Analysis and Mining, MCAM 2007. Our workshop gives a snapshot of the current wor- wide research in multimedia analysis. Through recent advances in computing, networking, and data storage, multimedia will create new interesting technical possibilities in a wide range of ?elds, such as entertainment, commerce, science, medicine, and public safety. To bene?t from this potential, developers need - liable techniques for the analysis, search, and management of multimedia data, as well as distributed system architectures in which these techniques can be embedded to e?ectively help the users. Recently, there have been many workshops and meetings dedicated to M- timedia, but most of them followed the standard pattern consisting mainly of oral and poster presentations. We all feel that there is a need for a meeting that really is a workshop, i.e., one that provides a lot of opportunities for discussions and dissemination. Consequently, the format of the workshop consists of 4 p- els on hot topics in multimedia followedby discussions and poster presentations. The topics of the panels are: Multimedia Analysis and Applications, Multi- dia Search and Mining, P2P Streaming, and Security. This volume contains a number of invited contributions from experts in the area as well as the selected regular contributions. This year 139 submissions from 13 countries were submitted and 46 were accepted for presentation at the conference after being reviewed by the Program Committee members.

Computer architecture. Operating systems --- Information systems --- Artificial intelligence. Robotics. Simulation. Graphics --- Computer. Automation --- beeldverwerking --- ICT (informatie- en communicatietechnieken) --- IR (information retrieval) --- grafische vormgeving --- multimedia --- informatiesystemen --- computernetwerken