ppxscal/embedding_network huggingface dataset:
Ubiquitous Accessibility: Building Access Features Directly into the Network to Allow Anyone, Anywhere Access to Ubiquitous Computing Environments
Authors: Gregg C. Vanderheiden
Venue: Proceedings of the 5th International on ConferenceUniversal Access in Human-Computer Interaction. Part II: Intelligent and Ubiquitous Interaction Environments (2009)

Traditionally access to computers and electronic devices has relied extensively on the strategy of adapting the devices that the person with a disability needs to access or using a special version of the product. This was especially true for people with more severe or multiple disabilities. As we move to an environment where computers and information services are incorporated into our environments, and where people must be able to access the technologies they encounter throughout their day, we need to move to a different model that might be called "ubiquitous accessibility". Ubiquitous accessibility would involve building access features for all people directly into the ICT systems in the environment so that access could be invoked directly by the user when they needed it. This approach would need to involve a combination of access features that were built in and features that could be invoked on demand from the network.
Synchronizing Parallel Data Streams via Cross-Stream Coding
Authors: Shaofeng Liu, Jurgen P. Schulze, Tomas A. Defanti
Venue: Proceedings of the 2009 IEEE International Conference on Networking, Architecture, and Storage (2009)

Streaming very-high-definition visualization data objects on top of optical networks is critical in many scientific research areas, including video streaming/conferencing, remote rendering on tiled display walls, 3D virtual reality applications, etc. Current data streaming protocols rely on UDP as well as a variety of compression techniques. However, none of the protocols scale well to the parallel streaming model of large scale graphic applications, and the existing parallel streaming protocols have limited synchronization mechanisms to synchronize the streams efficiently, and are prone to be slowed down by just one slow stream. In this paper, we propose a new parallel streaming protocol that can stream synchronized multiple Gbps media content over optical networks through reliable Cross-Stream packet coding, which not only tolerates random UDP packet loss, but also aims to achieve good synchronization performance across multiple parallel data streams with reasonable coding overhead. We simulated the approach, and the results show that our approach can generate steady throughput with fluctuating data streams.
Clique-based clustering for improving named entity recognition systems
Authors: Julien Ah-Pine, Guillaume Jacquet
Venue: Proceedings of the 12th Conference of the European Chapter of the Association for Computational Linguistics (2009)

We propose a system which builds, in a semi-supervised manner, a resource that aims at helping a NER system to annotate corpus-specific named entities. This system is based on a distributional approach which uses syntactic dependencies for measuring similarities between named entities. The specificity of the presented method however, is to combine a clique-based approach and a clustering technique that amounts to a soft clustering method. Our experiments show that the resource constructed by using this clique-based clustering system allows to improve different NER systems.
Nonsubsampled Contourlet Transform Based Image Fusion and Its Analysis
Authors: Liu Gang, Lin Xuehui, Qian Hong, Huang Guohong
Venue: Proceedings of the 2009 International Conference on Environmental Science and Information Application Technology - Volume 03 (2009)

Image fusion is the process of generating a single combined image, which contains a more accurate description of the scene than the multiple images from different sources. Many approaches have been developed for the combination of complementary information coming from input images in order to create a new image where the informative content is more suitable for human visual or machine perception. Nonsubsampled Contourlet Transform (NSCT) can realize a flexible multiscale, multidirection, and shift-invariant image decomposition. As a result, when NSCT is introduced to image fusion, more information and better characteristics from the original images for fusion could be obtained. In this paper, NSCT is proposed when different registered source images are decomposed. Then with two distinct modes of fusion method in low-frequency and in high-frequency separately, the fused image will be obtained by inverse NSCT. Compared with the fusion method based on wavelet and other fusion methods, the experiments show that this approach can achieve better results than them.
Long paths and cycles in hypercubes with faulty vertices
Authors: Jiří Fink, Petr Gregor
Venue: Information Sciences: an International Journal (2009)

A fault-free path in the n-dimensional hypercube Q"n with f faulty vertices is said to be long if it has length at least 2^n-2f-2. Similarly, a fault-free cycle in Q"n is long if it has length at least 2^n-2f. If all faulty vertices are from the same bipartite class of Q"n, such length is the best possible. We show that for every set of at most 2n-4 faulty vertices in Q"n and every two fault-free vertices u and v satisfying a simple necessary condition on neighbors of u and v, there exists a long fault-free path between u and v. This number of faulty vertices is tight and improves the previously known results. Furthermore, we show for every set of at most n^2/10+n/2+1 faulty vertices in Q"n where n>=15 that Q"n has a long fault-free cycle. This is a first quadratic bound, which is known to be asymptotically optimal.
Computer aided innovation-State of the art from a new product development perspective
Authors: Stefan Hüsig, Stefan Kohn
Venue: Computers in Industry (2009)

In this paper we present the state of the art in the field of computer aided innovation (CAI) from a new product development (NPD) perspective. Based on a holistic understanding of the innovation process and its support by ICT, we provide an overview of the emerging issue of CAI in the NPD field. In particular, the latest research on the concept of CAI, its categorization, potential benefits of CAI, trends in the CAI supply, and issues of CAI usage and implementation are discussed and summarized in this article. Current publications indicate that the emerging field of CAI has recently been getting more attention in the NPD area, but this research needs to integrate further the insights from other research areas in the CAI field. It must also make a better distinction between generic ICT and CAI to achieve a more specific and holistic perspective on CAI in the future.
Oriented Morphometry of Folds on Surfaces
Authors: Maxime Boucher, Alan Evans, Kaleem Siddiqi
Venue: Proceedings of the 21st International Conference on Information Processing in Medical Imaging (2009)

The exterior surface of the brain is characterized by a juxtaposition of crests and troughs that together form a folding pattern. The majority of the deformations that occur in the normal course of adult human development result in folds changing their length or width. Current statistical shape analysis methods cannot easily discriminate between these two cases. Using discrete exterior calculus and Tikhonov regularization, we develop a method to estimate a dense orientation field in the tangent space of a surface described by a triangulated mesh, in the direction of its folds. We then use this orientation field to distinguish between shape differences in the direction parallel to folds and those in the direction across them. We test the method quantitatively on synthetic data and qualitatively on a database consisting of segmented cortical surfaces of 92 healthy subjects and 97 subjects with Alzheimer's disease. The method estimates the correct fold directions and also indicates that the healthy and diseased subjects are distinguished by shape differences that are in the direction perpendicular to the underlying hippocampi, a finding which is consistent with the neuroscientific literature. These results demonstrate the importance of direction specific computational methods for shape analysis.
Analysis on Water Quality and Eutrophication State of Honghu Lake, China: A Case Study of Vegetation Restoring Model District
Authors: Mo Minghao, Wang Xuelei, Wang Huiliang, Li Enhua
Venue: Proceedings of the 2009 International Conference on Environmental Science and Information Application Technology - Volume 02 (2009)

The vegetation restoring model district lies in the southeast of Honghu Lake which is interlinked with the Yangtze River through the river course. Based on the field investigation and test, this paper applies the fuzzy mathematical principle and uses five parameters to assess the water quality of the model district. Inferring from the fuzzy concept, which is more objective comparing with other assessment measures, the synthetic assessment result calculated out is that the level of water quality in the study region of Honghu Lake is IV. Lake nutritional status of the composite index is used to appraise its nutritional status and the result is Mesotropher but it has the tendency to Eutropher. Phosphorus element is the main limiting factor. The result indicates that the water quality of the study region changes better slightly and the eutrophication condition is to become aggravated. Therefore, the wetland ecological engineering project in the model district is able to improve water environment of Honghu Lake.
Adaptive Visual Clustering for Mixed-Initiative Information Structuring
Authors: Hakan Duman, Alex Healing, Robert Ghanea-Hercock
Venue: Proceedings of the Symposium on Human Interface 2009 on ConferenceUniversal Access in Human-Computer Interaction. Part I: Held as Part of HCI International 2009 (2009)

Cyclone is a mixed-initiative and adaptive clustering and structure generation environment which is capable of learning categorization behavior through user interaction as well as conducting auto-categorization based on the extracted model. The strength of Cyclone resides in its integration of several visualization and interface techniques with data mining and AI learning processes. This paper presents the intuitive visual interface of Cyclone which empowers the user to explore, analyze, exploit and structure unstructured information from various sources generating a personalized taxonomy in real-time and on-the-fly.
XML Security Views Revisited
Authors: Benoît Groz, Sławomir Staworko, Anne-Cecile Caron, Yves Roos, Sophie Tison
Venue: Proceedings of the 12th International Symposium on Database Programming Languages (2009)

In this paper, we revisit the view based security framework for XML without imposing any of the previously considered restrictions on the class of queries, the class of DTDs, and the type of annotations used to define the view. First, we show that the full class of Regular XPath queries is closed under query rewriting. Next, we address the problem of constructing a DTD that describes the view schema, which in general needs not be regular. We propose three different methods of approximating the view schema and we show that the produced DTDs are indistinguishable from the exact schema (with queries from a class specific for each method). Finally, we investigate problems of static analysis of security access specifications.
New algorithm for observer error linearization with a diffeomorphism on the outputs
Authors: D. Boutat, A. Benali, H. Hammouri, K. Busawon
Venue: Automatica (Journal of IFAC) (2009)

In this paper, we give the necessary and sufficient conditions that guarantee the existence of a diffeomorphism which allows one to transform a multi-output nonlinear dynamical system into a normal observable canonical form. In particular, we propose an algorithm that permits one to derive such diffeomorphism. The main feature of the canonical form is that it is obtained by allowing a diffeomorphism on the outputs and it also allows one to design an observer with linear error dynamics. We first consider multi-output nonlinear dynamical system without inputs. We then extend the results obtained to multi-output nonlinear dynamical system with inputs.
CADIAL Search Engine at INEX
Authors: Jure Mijić, Marie-Francine Moens, Bojana Dalbelo Bašić
Venue: Advances in Focused Retrieval: 7th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2008, Dagstuhl Castle, Germany, December 15-18, 2008. Revised and Selected Papers (2009)

Semi-structured document retrieval is becoming more popular with the increasing quantity of data available in XML format. In this paper, we describe a search engine model that exploits the structure of the document and uses language modelling and smoothing at the document and collection levels for calculating the relevance of each element from all the documents in the collection to a user query. Element priors, CAS query constraint filtering, and the +/- operators are also used in the ranking procedure. We also present the results of our participation in the INEX 2008 Ad Hoc Track.
Inferring Peptide Composition from Molecular Formulas
Authors: Sebastian Böcker, Anton Pervukhin
Venue: Proceedings of the 15th Annual International Conference on Computing and Combinatorics (2009)

With the advent of novel mass spectrometry techniques such as Orbitrap MS, it is possible to determine the exact molecular formula of an unknown molecule solely from its isotope pattern. But for protein mass spectrometry, one is facing the problem that many peptides have exactly the same molecular formula even when ignoring the order of amino acids. In this work, we present an efficient method to determine the amino acid composition of an unknown peptide solely from its molecular formula. Our solution is based on efficiently enumerating all solutions of the multi-dimensional equality constrained integer knapsack problem.
Multitouch Haptic Interaction
Authors: Michael Schmidt, Gerhard Weber
Venue: Proceedings of the 5th International on ConferenceUniversal Access in Human-Computer Interaction. Part II: Intelligent and Ubiquitous Interaction Environments (2009)

Gestural user interfaces designed for planar touch-sensitive tactile displays require an appropriate concept for teaching gestures and other haptic interaction to blind users. We consider proportions of hands and demonstrate gestures by tactile only methods without the need for Braille skills or verbalization. A user test was performed to confirm blind users may learn gestures autonomously.
Comparison of small cross inductors and rectangular inductors designed in 0.35um CMOS technology
Authors: Luiz Carlos Moreira, Wilhelmus A. M. Van Noije, Armando Ayala Pabón, Andrés Farfán-Peláez
Venue: Proceedings of the 22nd Annual Symposium on Integrated Circuits and System Design: Chip on the Dunes (2009)

This paper describes the design, and experimental characterization of cross inductors in a 0.35&mu;m CMOS technology. The Sonnet tools were used to simulate and evaluate the performance of the new inductor structure, whose core has perpendicular crossed segments at the two highest layers available of the technology. Due to this arrangement, the positive as well as the negative mutual inductance are almost null. To make a fair comparison, the new structure and conventional rectangular inductor were designed to get similar inductance value, and with the same segment width and spacing fixed at 10&mu;m. The proposed cross structure occupied an area of 160x140&mu;m2 while the square planar inductor presents an area of 180x180&mu;m2. Thus, the last one occupies 45% more area than the cross inductor. Some deembedding structures were fabricated and used to subtract the effect of the test-fixture in the on-wafer measurements. The main experimental results are: for cross inductor an inductance value of 2.1nH and Q of 3.3 at 5.2GHz and for the square one an inductance of 1.9nH and Q of 5.5 at 5.5GHz. Although, for similar inductance value, the quality factor of the cross inductor is lower than for the rectangular inductor one, the new cross inductor structure shows to be useful at RF circuits where the inductors are largely used and the most area consuming components.
A load balancing scheme for massively multiplayer online games
Authors: Carlos Eduardo Bezerra, Cláudio Fernando Geyer
Venue: Multimedia Tools and Applications (2009)

In a distributed MMOG (massively multiplayer online game) server architecture, the server nodes may become easily overloaded by the high demand from the players for state updates. Many works propose algorithms to distribute the load on the server nodes, but this load is usually defined as the number of players on each server, what is not an ideal measure. Also, the possible heterogeneity of the system is frequently overlooked. We propose a balancing scheme with two main goals: allocate load on server nodes proportionally to each one's power and reduce the inter-server communication overhead, considering the load as the occupied bandwidth of each server. Four algorithms were proposed, from which ProGReGA is the best for overhead reduction and ProGReGA-KF is the most suited for reducing player migrations between servers. We also make a review of related works and some comparisons were made, where our approach performed better.
Architecture compliance checking at run-time
Authors: Dharmalingam Ganesan, Thorsten Keuler, Yutaro Nishimura
Venue: Information and Software Technology (2009)

In this paper, we report on our experiences with architecture compliance checking - the process of checking whether the planned or specified software architecture is obeyed by the running system - of an OSGi-based, dynamically evolving application in the office domain. To that end, we first show how to dynamically instrument a running system in the context of OSGi in order to collect run-time traces. Second, we explain how to bridge the abstraction gap between run-time traces and software architectures, through the construction of hierarchical Colored Petri nets (CP-nets). In addition, we demonstrate how to design reusable hierarchical CP-nets. In an industry example, we were able to extract views that helped us to identify a number of architecturally relevant issues (e.g., architectural style violations, behavior violations) that would not have been detected otherwise, and could have caused serious problems like system malfunctioning or unauthorized access to sensitive data. Finally, we package valuable experiences and lessons learned from this endeavor.
An Open Source Framework for Real-Time, Incremental, Static and Dynamic Hand Gesture Learning and Recognition
Authors: Todd C. Alexander, Hassan S. Ahmed, Georgios C. Anagnostopoulos
Venue: Proceedings of the 13th International Conference on Human-Computer Interaction. Part II: Novel Interaction Methods and Techniques (2009)

Real-time, static and dynamic hand gesture learning and recognition makes it possible to have computers recognize hand gestures naturally. This creates endless possibilities in the way humans can interact with computers, allowing a human hand to be a peripheral by itself. The software framework developed provides a lightweight, robust, and practical application programming interface that helps further research in the area of human-computer interaction. Approaches that have proven in analogous areas such as speech and handwriting recognition were applied to static and dynamic hand gestures. A semi-supervised Fuzzy ARTMAP neural network was used for incremental online learning and recognition of static gestures; and, Hidden Markov models for online recognition of dynamic gestures. A simple anticipatory method was implemented for determining when to update key frames allowing the framework to work with dynamic backgrounds.
Quality of service and communicative competence in NLG evaluation
Authors: Kristiina Jokinen
Venue: Proceedings of the Eleventh European Workshop on Natural Language Generation (2007)

The paper discusses quality of service evaluation which emphasises the user's experience in the evaluation of system functionality and efficiency. For NLG systems, an important quality feature is communicatively adequate language generation, which affects the users' perception of the system and consequently, evaluation results. The paper drafts an evaluation task that aims at measuring quality of service, taking the system's communicative competence into account.
Aiduti in Japanese multi-party design conversations
Authors: Yasuhiro Katagiri
Venue: Proceedings of the Workshop on Embodied Language Processing (2007)

Japanese backchannel utterances, aizuti, in a multi-party design conversation were examined, and aizuti functions were analyzed in comparison with its functions in two-party dialogues. In addition to the two major functions, signaling acknowledgment and turn-management, it was argued that aizuti in multi-party conversations are involved in joint construction of design plans through management of the floor structure, and display of participants' readiness to engage in collaborative elaboration of jointly constructed proposals.
A 3D Campus on the Internet --- A Networked Mixed Reality Environment
Authors: Jiung-Yao Huang, Ming-Chih Tung, Huan-Chao Keh, Ji-Jen Wu, Kun-Hang Lee, Chung-Hsien Tsai
Venue: Transactions on Edutainment II (2009)

This paper presents a study of networking the mobile augmented reality system with the conventional networked virtual environment and it is called the networked mixed reality environment in this study. The 3D virtual campus is an ongoing project aiming to explore the techniques how to design such a networked mixed reality environment. This study starts with investigating the temporal and spatial synchronization issues between the mobile computing system and the conventional networked virtual reality system. The proposed solutions are then followed by a demonstration prototyping system, called Multiplayer Mobile Mixed Reality(M3R) system. The tips of implementing the M3R system are presented in the end. The 3D virtual campus project successfully demonstrates the promise of building a pervasive virtual environment between the live player and the virtual player. Inspired by the preliminary success, further experiments and application are currently being examined.
An Efficient Parallel Algorithm for Graph-Based Image Segmentation
Authors: Jan Wassenberg, Wolfgang Middelmann, Peter Sanders
Venue: Proceedings of the 13th International Conference on Computer Analysis of Images and Patterns (2009)

Automatically partitioning images into regions (`segmentation') is challenging in terms of quality and performance. We propose a Minimum Spanning Tree-based algorithm with a novel graph-cutting heuristic, the usefulness of which is demonstrated by promising results obtained on standard images. In contrast to data-parallel schemes that divide images into independently processed tiles, the algorithm is designed to allow parallelisation without truncating objects at tile boundaries. A fast parallel implementation for shared-memory machines is shown to significantly outperform existing algorithms. It utilises a new microarchitecture-aware single-pass sort algorithm that is likely to be of independent interest. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player