ppxscal/embedding_network huggingface dataset:
GPU-based 3D oriental color-ink rendering
Authors: Crystal S. Oh, Yang-Hee Nam
Venue: Proceedings of the 2005 international conference on Augmented tele-existence (2005)

Automated rendering technique in oriental painting style is demanding in the entertainment industry such as game, animation since this makes their contents more unique. To simulate the oriental painting more vivid, intrinsic color expression is critical. Generally actual artists put 3 colors on the different part of the brush at the same time and they express the volume and diffusion effect with this brush using peculiar color pigments. However most existing works have only focused on black ink painting and they rarely discuss about how to simulate the effect of actual pigments and their layered application. This paper presents a novel algorithm which can express the volume and diffusion of 3D objects using oriental color-ink model constructed from the real artists' standpoint. This model consists of 3 layers according to different color tones. They are combined using Kubelka-Munk (KM) composition model where optical parameters are extracted from the real painting media. We implemented our model on a GPU and the results show real-time rendering performance in arbitrarily given 3D scenes.
A reduced complexity ESPRIT method and its generalization to an antenna of partially unknown shape
Authors: A. Marsal, S. Marcos
Venue: Proceedings of the Acoustics, Speech, and Signal Processing,1994. on IEEE International Conference - Volume 04 (1994)

We address the problem of finding a source bearing estimation method with low complexity and which is capable of dealing with uncertainties on the array geometry. This problem is important, for example, in the case of large towed arrays which may deviate from their assumed linear shape. We here consider the ESPRIT method as a candidate for dealing with this problem. We use the properties of the propagator to reduce the complexity of the ESPRIT method involved by the eigendecomposition and to generalize it, in conjunction with the interpolation of arrays, to the case of an array whose geometry is only known for a number of sensors equal to the number of sources.
Fusiform Activation to Animals is Driven by the Process, Not the Stimulus
Authors: Timothy T. Rogers, Julia Hocking, Andrea Mechelli, Karalyn Patterson, Cathy Price
Venue: Journal of Cognitive Neuroscience (2005)

Previous studies have found that the lateral posterior fusiform gyri respond more robustly to pictures of animals than pictures of manmade objects and suggested that these regions encode the visual properties characteristic of animals. We suggest that such effects actually reflect processing demands arising when items with similar representations must be finely discriminated. In a positron emission tomography (PET) study of category verification with colored photographs of animals and vehicles, there was robust animal-specific activation in the lateral posterior fusiform gyri when stimuli were categorized at an intermediate level of specificity (e.g., dog or car). However, when the same photographs were categorized at a more specific level (e.g., Labrador or BMW), these regions responded equally strongly to animals and vehicles. We conclude that the lateral posterior fusiform does not encode domain-specific representations of animals or visual properties characteristic of animals. Instead, these regions are strongly activated whenever an item must be discriminated from many close visual or semantic competitors. Apparent category effects arise because, at an intermediate level of specificity, animals have more visual and semantic competitors than do artifacts.
Feature Selection for a Fast Speaker Detection System with Neural Networks and Genetic Algorithms
Authors: Rocio Quixtiano-Xicohtencatl, Leticia Flores-Pulido, Orion Fausto Reyes-Galaviz
Venue: Proceedings of the 15th International Conference on Computing (2006)

Today, there is a great necessity for security systems in banks, laboratories, etc.; specially those that have restricted areas or expensive equipment. Most of the time people use magnetic cards or similar technologies. However, these kind of devices can be vulnerable, because these might be used by intruders in case of a misplaced device. More advanced technologies use iris or voice detection, potentially increasing the security level against intruders. This work is focused on the latter group. This paper proposes a hybrid method, for the speech processing area, to select and extract the best features that represent a speech sample. The proposed method makes use of a Genetic Algorithm along with Feed Forward Neural Networks in order to either deny or accept personal access in real time. Finally, to test the proposed method, a series of experiments were conducted, by using fifteen different speakers; obtaining an efficiency rate of up to 97% on intruder detection.
The Origins of Word Processing Software for Personal Computers: 1976-1985
Authors: Thomas J. (Tim) Bergin
Venue: IEEE Annals of the History of Computing (2006)

Since Electric Pencil first debuted in 1976, more than 400 other word processing packages have emerged, most fading into oblivion. This article--first of two in this issue that together recount the history of microcomputer word processing software--focuses on three of the earliest word processing software packages, Electric Pencil, EasyWriter, and WordStar, which was the mid-1980s leader in the CP/M, PC-DOS, and MS-DOS operating system environments
Embedding with syndrome coding based on BCH codes: The corrected version of this paper is now available as full text. To view the original document as presented in the printed proceedings (with its errors), download the supplemental file
Authors: Dagmar Schönfeld, Antje Winkler
Venue: Proceedings of the 8th workshop on Multimedia and security (2006)

With Matrix Embedding based on Hamming Codes, coding theory has entered the field of steganography. Even though this class of structured codes had been used successfully in practical systems to minimize the number of embedding changes, thus maximizing embedding efficiency, further developments, such as Wet Paper Codes, were based on random codes instead.This paper redraws attention to structured codes, which are built according to deterministic rules. In particular, we study BCH Codes for embedding with syndrome coding, using either a structured matrix Hk x n as in Matrix Embedding, or a generator polynomial g(χ). We propose different approaches for embedding without locked elements, which differ in the tradeoff reached between embedding complexity and efficiency.As some practical systems allow more secure steganography if embedding constraints -- in terms of locked elements -- are respected, we demonstrate how BCH Codes can be employed in a Wet Paper Codes scenario as well. Based on a deduced analogy between code rate and the maximum number of lockable elements, we can find appropriate code parameters for a given fraction of locked elements in the cover, complexity constraints, and desired probability of successful embedding.
A compressor for effective archiving, retrieval, and updating of XML documents
Authors: Jun-Ki Min, Myung-Jae Park, Chin-Wan Chung
Venue: ACM Transactions on Internet Technology (TOIT) (2006)

Like HTML, many XML documents are resident on native file systems. Since XML data is irregular and verbose, the disk space and the network bandwidth are wasted. To overcome the verbosity problem, research on compressors for XML data has been conducted. Some XML compressors do not support querying compressed data, while other XML compressors which support querying compressed data blindly encode tags and data values using predefined encoding methods. Existing XML compressors do not provide the facility for updates on compressed XML data.In this article, we propose XPRESS, an XML compressor which supports direct updates and efficient evaluations of queries on compressed XML data. XPRESS adopts a novel encoding method called reverse arithmetic encoding, which encodes label paths of XML data and applies diverse encoding methods depending on the types of data values. Experimental results with real-life data sets show that XPRESS achieves significant improvements on query performance for compressed XML data and reasonable compression ratios. On average, the query performance of XPRESS is 2.13 times better than that of an existing XML compressor, and the compression ratio of XPRESS is about 71&percnt;. Additionally, we demonstrate the efficiency of the updates performed directly on compressed XML data.
Introduction to the Proceedings of the EDOC 2006 Workshop Middleware for Web Services (MWS) 2006
Authors: Vladimir Tosic, Aad van Moorsel, Raymond Wong
Venue: Proceedings of the 10th IEEE on International Enterprise Distributed Object Computing Conference Workshops (2006)

Welcome to the Proceedings of the EDOC 2006 workshop Middleware for Web Services (MWS) 2006! The workshop is a follow-up to the successful MWS 2005 workshop held at the EDOC 2005 conference and the subsequent special issue of the International Journal of Business Process Integration and Management (IJBPIM, published by Inderscience Publishers). Similarly to these past venues, the MWS 2006 workshop is sponsored by the National Information and Communications Technology Australia (NICTA). During the past several years, Web services technologies have become very prominent in both the research community and the industry. Web services are distributed computing application components implementing the service-oriented architecture (SOA). They rely on Extensible Markup Language (XML) interface description languages, such as the standardized Web Services Description Language (WSDL), and communication protocols, such as the standardized SOAP protocol (previously known as the Simple Object Access Protocol). In addition, Web services can use a number of other standardized and/or proprietary XML-based formats, such as the standardized Web Services Business Process Execution Language (WSBPEL) for describing business processes implemented as Web service compositions. Implementation-independence of Web services technologies allows different businesses to collaborate and achieve common business goals despite the fact that the collaborating Web services can be distributed over the Internet, run on different platforms, and implemented in different programming languages. Web services technologies are already embedded in various products and services of all major computing companies and used for diverse purposes.
Hermite-like reduction method for linear phase perfect reconstruction filter bank design
Authors: S. Basu, H. M. Choi
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1995. on International Conference - Volume 02 (1995)

Complete parametrization of multiband linear phase biorthogonal filter banks are given. The method uses matrix reduction methods similar to the Hermite reduction method of linear system theory. Computational algorithms are derived for design, and examples are worked out.
Right Hemisphere Activation of Joke-related Information: An Event-related Brain Potential Study
Authors: Seana Coulson, Ying Choon Wu
Venue: Journal of Cognitive Neuroscience (2005)

Two studies tested the hypothesis that the right hemisphere engages in relatively coarse semantic coding that aids high-level language tasks such as joke comprehension. Scalprecorded event-related brain potentials (ERPs) were collected as healthy adults read probe words (CRAZY) preceded either by jokes or nonfunny controls ("Everyone had so much fun jumping into the swimming pool, we decided to put in a little water/platform"). Probes were related to the meaning of the jokes, but not the controls. In Experiment 1a, with central presentation, probes following jokes (related) elicited less negative ERPs 300&ndash;700 msec postonset (N400) than did probes following nonfunny controls (unrelated). This finding suggests related probes were primed by the jokes. In addition, unrelated probes elicited a larger anterior positivity 700&ndash;900 msec than did related, as irrelevant stimuli impacted control processes invoked by task demands. In Experiment 1b, probes (CRAZY) were preceded only by sentence-final words from jokes (water) or controls (platform). No ERP effects were observed in Experiment 1b, suggesting the N400 priming effect and the anterior positivity observed in Experiment 1a ref lect semantic activations at the discourse level. To assess hemispheric differences in semantic activations, in Experiment 2, ERPs were recorded as participants read probe words presented in their left and right visual fields (LVF and RVF, respectively). Probes elicited a smaller N400 component when preceded by jokes than controls. This N400 priming effect was larger with presentation to the LVF, suggesting joke-relevant information was more active in the right hemisphere. The anterior positivity was observed with RVF but not LVF presentation, suggesting an important role for the left hemisphere in controlled retrieval in language comprehension.
Traceroute-Based Fast Peer Selection without Offline Database
Authors: Lihang Ying, Anup Basu
Venue: Proceedings of the Eighth IEEE International Symposium on Multimedia (2006)

The extreme heterogeneity in the P2P Internet environment causes the connections to candidate peers to vary significantly. Thus, selecting good candidate peers is critical to P2P networking performance. While most research in the literature focus on selecting peers with low latency, high uploading bandwidth, and high serving stability by time-consuming end-to-end measurement, we address how to quickly narrow the scope of good candidate peers. In this paper, we proposed to pick out the close peers from the same location or with low round-trip time from each other, by observing that close peers share routers along the traceroute path to the same destination. Our method only maintains online peers's traceroute records, without any offline database. Experiments with real traceroute records from 352 different IP addresses around the world verify the efficiency of our method.
Designing Usable Charts for ComplexWork Settings
Authors: Connor Upton, Gavin Doherty
Venue: Proceedings of the conference on Information Visualization (2006)

Advances in graphing applications, plug-ins and toolkits means that integrating charts and graphs into software is easier than ever before. However, selecting the optimal graphing technique for a workers task remains a difficult challenge. Information visualisation experts draw on research from cognitive engineering, perceptual psychology and human computer interaction when designing displays. For the increasing number of developers who are integrating visual displays into applications, there is for a lack of a general methodology that pulls together key activities from these diverse fields. In the absence of such a methodology, it is very difficult for software developers to identify if their choice of representation satisfies both the user's tasks and perceptual limitations. We describe the approach taken in the redesign of an interactive chart used in a High Volume Manufacturing environment. We show how analyses of the work domain, the data and the users' tasks are all crucial steps in the design process.
Tupelo enacted: how teachers shape learning opportunities in middle grades mathematics
Authors: Chandra Hawley Orrill, Holly Garrett Anthony, Andrew Izsák, Ernise Singleton
Venue: Proceedings of the 7th international conference on Learning sciences (2006)

Building from the triangle of interactions outlined by Cohen and Ball, this study considers the implications of enactment for student learning opportunities in three classrooms. Data included classroom videotapes and teacher interviews that allowed the researchers to understand the implications of three different enactments of the same open-middle mathematics problem. The findings highlight implications of different implementations for the mathematical concepts that students had opportunities to learn in each classroom.
Architecture and Performance of XML-Based Componentization of the Symbian Smartphone Platform
Authors: Szabolcs Payrits, Peter Dornbach, Gabor Marton
Venue: Proceedings of the 32nd EUROMICRO Conference on Software Engineering and Advanced Applications (2006)

Service-oriented architecture (SOA) is common in enterprise back-ends and is finding its way to mainstream desktop systems. SOA is traditionally built on top of an existing component infrastructure. This paper investigates how a similar architecture can be realized in mobile devices based on the Symbian operating system; in an environment that does not have a fully-fledged component infrastructure. The proposed middleware merges the service-oriented and component layers into a single architectural layer. The paper introduces details of this design, implementation and investigates its implications on overall performance.
A linear filtering approach for direction-of-arrival estimation of coherent signals
Authors: S. F. Yau
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1993. ICASSP-93 Vol 4., 1993 IEEE International Conference on - Volume 04 (1993)

The problem of estimating the direction of arrival from coherent sensor array data and the estimation of frequencies of superimposed exponential signals from a time series are considered. By exploring the special structure of the problem, a linear filtering approach is proposed to generate multiple snapshots of data which are not coherent. It is shown that the method is a generalization of the spatial smoothing approach described by J.E. Evans et al. (1981) which is shown to be optimal under certain conditions. 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
Book Reviews: Plumbing the Depths of Leakage
Authors: Sachin Sapatnekar
Venue: IEEE Design Test (2006)

A review of Leakage in Nanometer CMOS Technologies, edited by Siva G. Narendra and Anantha Chandrakasan (Springer, 2006).
Covert Auditory Attention Generates Activation in the Rostral/Dorsal Anterior Cingulate Cortex
Authors: Ralph H. B. Benedict, David W. Shucard, Michael P. Santa Maria, Janet L. Shucard, Jose P. Abara, Mary Lou Coad, David Wack, James Sawusch, Alan Lockwood
Venue: Journal of Cognitive Neuroscience (2002)

The anterior cingulate cortex (ACC) is believed to mediate conscious information processing or high-capacity attention. However, previous functional imaging studies have largely relied on tasks that involve motor function as well as attention. The work from our group utilizing an auditory continuous performance task demonstrated increased activity in a caudal division of the ACC that borders the supplementary motor area (SMA). Activity in this region was attributed to motor responding as well as attention. In the present study, we used 15O H2O positron emission tomography (PET) to map brain activation during nonmotor, covert auditory attention. Our hypothesis was that a different region within the ACC, anterior to the SMA, would be active during covert attention (CA). Six men and six women were asked to monitor aurally presented syllables presented at a 1-sec interstimulus interval. During the CA condition, subjects were asked to continuously discriminate target (.19 probability) from nontarget stimuli. Simultaneous recording of event-related potentials (ERPs) confirmed the discrimination of target and nontarget stimuli and the allocation of attention capacity. Comparison of the monitored versus nonmonitored presentation of stimuli demonstrated significant activity in a rostral/dorsal division of the right ACC, anterior to SMA. Other regions of activation included the lateral prefrontal cortex and posterior superior temporal gyrus in the left hemisphere, consistent with neurocognitive models of language and vigilance. We conclude that a rostral/dorsal subdivision of the right ACC is specific for conscious attention during auditory processing, in contrast to premotor response formation.
A Theoretical Perspective on Knowledge Based Organizational Learning
Authors: K. Alagarasamy, Justus S, K. Iyakutti
Venue: Proceedings of the XIII Asia Pacific Software Engineering Conference (2006)

Knowledge society is dominant in this age of surviving and thriving dominance. A person's or an organization's ability to acquire and share knowledge is their most important competency which is obtained, over a period of time, through the process of learning and experience. In the present context, organizational learning is focused on knowledge generation, its management, sharing and ultimately in the improvement of the organization's processes. Though generation of knowledge is through organizational learning, it has to be marketed by externalization and managed to create a repository of tacit knowledge which helps decision making authorities in improving processes - from business to product development. A theoretical perspective on these concepts is presented here in tune with the present scenario. Also this research work is presented for discussion before a team of knowledge workers and leaders for their valuable comments and future directions. Finally, a set of issues for future study in this area is also proposed along with the concluding remarks.
Cylindrical Model-Based Head Tracking and 3D Pose Recovery from Sequential Face Images
Authors: Ohryun Kwon, Junchul Chun, Poem Park
Venue: Proceedings of the 2006 International Conference on Hybrid Information Technology - Volume 01 (2006)

This paper presents a novel approach to estimate 3D head pose dynamically from a sequence of input images. The exact head pose estimation and facial motion tracking are critical problems to be solved in developing a vision based human computer interaction system. Given an initial reference template of head image and corresponding head pose, the full head motion is recovered by using a cylindrical head model. By updating the template dynamically in order to accommodate gradual changes in lighting, it is possible to recover head pose robustly regardless of light variation and self-occlusion. For this, we adopt optical flow along with iteratively re-weighted least square technique. From the experiments, we can show the proposed approach efficiently estimate 3D head pose.
Learning from a Planets Game: Elements of a Didactical Transposition Described with the CPM Language
Authors: Thierry Nodenot, Pierre Laforcade
Venue: Proceedings of the Sixth IEEE International Conference on Advanced Learning Technologies (2006)

This paper tells how the CPM language can be used to model a case-study in astronomy (planets game).
Segmentation of Calcification Regions in Intravascular Ultrasound Images by Adaptive Thresholding
Authors: Esmeraldo dos Santos Filho, Yoshifumi Saijo, Tomoyuki Yambe, Akira Tanaka, Makoto Yoshizawa
Venue: Proceedings of the 19th IEEE Symposium on Computer-Based Medical Systems (2006)

An innovative application of adaptive thresholding is used for calcification regions detection in intravascular ultrasound images. A priori knowledge about the acoustic shadow that usually follows the calcification regions is used as discriminant of other bright regions of the image. Tests were carried out with 20 in vivo coronary artery images obtained from different patients. This proposed algorithm presented specificity of 88% and sensitivity of 84%. A ROC curve, whose AUC was equal to 0.87, was plotted for evaluation of the algorithm performance.