ppxscal/embedding_network huggingface dataset:
Distributions of the potential and electric field of an electrode elliptic array used in tumor electrotherapy: Analytical and numerical solutions
Authors: Andrés Ramírez Aguilera, Luis Enrique Bergues Cabrales, Héctor Manuel Camué Ciria, Yudelmis Soler Pérez, Eduardo Roca Oria, Soraida Acosta Brooks, Tamara Rubio González
Venue: Mathematics and Computers in Simulation (2009)

To estimate the potential and electric field generated by any electrode array is very useful in effective tumor destruction. At present, an electrode array that takes into account the ellipsoidal geometry of the solid tumors has not been proposed. We present both analytical and numerical solutions for the potential and electric field in a solid tumor established by an electrode array with elliptic shape which may be used in vitro, in vivo and in clinical studies for cancer treatment with electrotherapy. These analytical and numerical solutions are obtained using multipole expansion and the finite difference method. Distributions of potential and electric field magnitudes are computed in function of the eccentricity of an elliptical array and compared with those obtained with a circular array of electrode. Maximum difference and Root Means Square Error are used to compare the distributions of the potential and electric field in leading-order and first-order correction and between the analytical and numerical solutions. The results show a good agreement between these distributions in both orders and the analytical and numerical solutions. It was concluded that the mathematical approach presented in this study is a tool for a rapid design of electrode elliptical arrays in order to induce the maximum destruction of the tumor. Moreover, it is shown that, for all values of eccentricity, there is a good correspondence between the distributions of the potential and the electric field for leading-order and first-order correction and for both the analytical and numerical solutions.
Processing Iconic Gestures in a Multimodal Virtual Construction Environment
Authors: Christian Fröhlich, Peter Biermann, Marc E. Latoschik, Ipke Wachsmuth
Venue: Gesture-Based Human-Computer Interaction and Simulation: 7th International Gesture Workshop, GW 2007, Lisbon, Portugal, May 23-25, 2007, Revised Selected Papers (2009)

In this paper we describe how coverbal iconic gestures can be used to express shape-related references to objects in a Virtual Construction Environment. Shape information is represented using Imagistic Description Trees (IDTs), an extended semantic representation which includes relational information (as well as numerical data) about the objects' spatial features. The IDTs are generated online according to the trajectory of the user's hand movements when the system is instructed to select an existing or to create a new object. A tight integration of the semantic information into the objects' data structures allows to access this information via so-called semantic entities as interfaces during the multimodal analysis and integration process.
The roles of time, place, value and relationships in collocated photo sharing with camera phones
Authors: Hanna Stelmaszewska, Bob Fields, Ann Blandford
Venue: Proceedings of the 22nd British HCI Group Annual Conference on HCI 2008: People and Computers XXII: Culture, Creativity, Interaction - Volume 1 (2008)

Photo sharing on camera phones is becoming a common way to maintain closeness and relationships with friends and family. How people share their photos in collocated settings using camera phones, with whom they share, and what factors influence their sharing experience were the themes explored in this study. Results showed that people exhibit different photo sharing behaviour depending on who they share photos with, where the sharing takes place and what value a picture represents to its owner. In this paper, we will explain what triggers the photo sharing activity and how the sharing takes place depending on who photos are shared with and where they are shared (e.g. restaurant, pub, home). The sharing experience is hindered by the difficulty of controlling which photographs are made available to particular people; sharing with a group of people at once; and ensuring appropriate privacy measures. These findings highlight requirements for novel mechanisms for organising, sharing, and displaying photos as well as provide a better understanding of photo sharing behaviour using camera phones in collocated settings.
A state-based battery model for nodes' lifetime estimation in wireless sensor networks
Authors: Joseph Rahmé, Khaldoun Al Agha
Venue: Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing (2009)

We address the problem of estimating the remaining energy of a node's battery in wireless sensor networks. To solve this issue, we provide an on-line battery model that requires limited memory and low computational complexity. The accuracy of our battery model is verified by simulation.
The provision and use of environmental information in a multiprogramming system
Authors: Tomlinson G. Rauscher
Venue: Proceedings of the May 6-10, 1974, national computer conference and exposition (1974)

In a modern multiprogramming system a user, who is competing for system resources, may desire to optimize himself relative to his environment. The environment includes not only the physical machine and attached devices but also system software and the programs of other users which are sharing and competing for resources. As most modern systems provide little environmental information to users, we describe facilities for querying the system to ascertain environmental information. The user, in dynamically querying the environment, can use information on the status of hardware and software (both system and other user) to improve the status and performance of his program according to some cost function he selects. Several examples demonstrate the utility of these environmental inquiry facilities. 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
A comment on "Sharing secrets in stegoimages with authentication"
Authors: Ching-Nung Yang, Chuei-Bang Ciou
Venue: Pattern Recognition (2009)

Recently, Chang et al.'s image secret sharing (ISS) scheme enhanced the weak authentication of two previous ISS schemes-Lin et al.'s scheme and Yang et al.'s scheme. Also, the authors claimed that the visual qualities of stegoimages were superior to the previous two schemes; however, their qualities were not really that improved. Contrarily, the qualities are significantly degraded when compared with those in Yang et al.'s scheme. This miscalculation is owing to a misunderstanding of Yang et al.'s scheme.
Data collection system design in SSM networks with unicast feedback
Authors: Martin Koutny, Pavel Silhavy, Jiri Hosek
Venue: Proceedings of the 7th conference on Circuits, systems, electronics, control and signal processing (2008)

In this paper, the system for mass data collection with cumulative acknowledge is described. The system is development for single source multicast networks. These networks are characterized by the ability to communicate with concrete network nodes. It makes these networks more efficient than the ASM networks. The purpose of the first part is to design and describe the system. In the next part are the possible process mechanism discussed. We also introduce an initialization, synchronization and the message transfers.
MEDBOLI: Medical Diagnosis Based on Ontologies and Logical Inference
Authors: Alejandro Rodríguez, Myriam Mencke, Giner Alor-Hernandez, Ruben Posada-Gomez, Juan Miguel Gomez, Alberto A. Aguilar-Lasserre
Venue: Proceedings of the 2009 International Conference on eHealth, Telemedicine, and Social Medicine (2009)

The Differential diagnosis (ddx) is a systematic method to identify unknowns. This method, essentially a process of elimination, is used by taxonomists to identify living organisms and by physicians to diagnose the specific disease in a patient. One important point is the enormous amount of knowledge that doctors are required to possess, in order to be able to make a correct ddx. The main problem is that the number of diseases which exist worldwide is enormous, and it is beyond the scope of the human brain to remember them all. For this reason, in this paper we present MEDBOLI, an ontology-driven medical diagnosis system which applies the use of ontologies combined with logical inference and computation of probabilities to establish the probability of the diagnosis.
Sandstorm Occurrence Frequency Short-Term Prediction Based on Bootstrap Method
Authors: Jianli Dong, Haiyang Chen, Jianzhou Wang, Donghuai Sun
Venue: Proceedings of the 3rd International Symposium on Advances in Computation and Intelligence (2008)

Sandstorm is a disastrous weather phenomenon, Gansu Province is in the high incidence region of sandstorm. So the sandstorm is one of the major casualty weather in recent years in Gansu, causing lots of losses. it is undoubtedly favor of reducing loss to predict annual occurrence frequency of sandstorm. This paper based on achievements on sandstorm, choosed Dingxin, Jinta, Jiuquan, Zhangye, Minqin, five areas, where the sandstorm disasters is very serious, selected the latest 8 years' data by analysis the data of 1971 --- 2007 as the original data, predict annual sandstorm occurrence frequency of recent years based on bootstrap method.
Molecular-beam epitaxy growth and characterization of mid-infrared quantum cascade laser structures
Authors: Kamil Kosiel, Justyna Kubacka-Traczyk, Piotr Karbownik, Anna Szerling, Jan Muszalski, Maciej Bugajski, Przemek Romanowski, Jarosław Gaca, Marek Wójcik
Venue: Microelectronics Journal (2009)

The development of molecular-beam epitaxy (MBE) of GaAs/AlGaAs heterostructures, used for fabrication of ~9&mu;m quantum cascade lasers (QCLs), is reported. The X-ray diffractometry (XRD) structural characterization, as an integral part of this process, is presented as well. Some conclusions, concerning the relationships between the used type of epitaxial technology and the necessity of special procedures of growth rate (Vgr) calibration, are reached. The influence of the structural features of the QCL active region on the electronic band structure is calculated, and consequently some predictions as to the device electrical properties are presented as well.
Dynamic QOS Control Based on the QOS-Ticket Model
Venue: Proceedings of the 1996 International Conference on Multimedia Computing and Systems (1996)

The most notable characteristic of continuous-media data is the existence of timing constraints. To handle such data appropriately, some system support for resource management and QOS control is indispensable. For this reason, we are proposing a "QOS-Ticket'' model, which combines resource reservation and adaptation. The QOS-Ticket model has been implemented on RT-Mach. In this prototype, a new thread mechanism, named ``Q-Thread,'' is provided. A Q-Thread allows a user to specify the tolerable range of the period and computation time for periodic invocations, and makes it easy to write a continuous-media session that can control the QOS dynamically. We showed the effectiveness of the QOS-Ticket model based on a dynamic QOS-control experiment with our prototype. 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
Using operation process simulation for a six sigma project of mining and iron production factory
Authors: Undram Chinbat, Soemon Takakuwa
Venue: Proceedings of the 40th Conference on Winter Simulation (2008)

The use of the Operation Process Simulation (OPS) for Six Sigma Projects (SSP) can illustrate visual display of the process by enabling to define, measure, analyze and improve the current process virtually but realistically. This paper investigates the quantitative benefits of using the Design for Six Sigma (DFSS) technique for a SSP in a Mining and Iron Production Factory (MIPF). The DFSS was deployed through five distinct phases: DMAIC, for optimizing the current MIPF as a first part of the research. The second part of the research investigates the possibilities of developing the deliverables of the DMAIC for a DMADV for implementing a new MIPF. Use of the OPS in all phases of the DMAIC has provided highly effective and accurate prediction for factory process improvement. Furthermore, the paper explored the effective possibilities of developing the deliverables of the DMAIC for the DMADV for building new MIPF.
Clustering Distributed Time Series in Sensor Networks
Authors: Jie Yin, Mohamed Medhat Gaber
Venue: Proceedings of the 2008 Eighth IEEE International Conference on Data Mining (2008)

Event detection is a critical task in sensor networks, especially for environmental monitoring applications. Traditional solutions to event detection are based on analyzing one-shot data points, which might incur a high false alarm rate because sensor data is inherently unreliable and noisy. To address this issue, we proposea novel Distributed Single-pass Incremental Clustering (DSIC) technique to cluster the time series obtained at sensor nodes based on their underlying trends. In order to achieve scalability and energy-efficiency, our DSIC technique uses a hierarchical structure of sensor networks as the underlying infrastructure. The algorithm first compresses the time series produced at individual sensor nodes into a compact representation using Haar wavelettransform, and then, based on dynamic time warping distances, hierarchically groups the approximate time series into a global clustering model in an incremental manner. Experimental results on both real data and synthetic data demonstrate that our DSIC algorithm is accurate, energy-efficient and robust with respect tonetwork topology changes.
Study on Finger Pointers Using Gray Theory
Authors: Yasumasa Numata, Ichiro Yuyama, Hiroshi Hasegawa, Yu Watanabe
Venue: Proceedings of the 2009 Third International Conference on Digital Society (2009)

In the present paper, we present a study focusing on the improvement of the operation of finger pointers, which are promising with respect to their potential for use as pointing devices in home environments. We developed a basic finger pointer and aimed at solving the following problems related to finger pointers: (1) instability and (2) time lag. For this purpose, the concept of prediction based on gray theory was applied to the finger pointer, and the relevant requirements were examined. The effectiveness of the proposed method was assessed through subjective evaluation, and the results indicated that all of the evaluated items were characterized by increased stability brought by the proposed technique. Using the proposed finger pointer together with the gray theory, we constructed a three-dimensional information presentation program whose operability was evaluated by using it as an electronic photo album, and the superiority of the proposed system was confirmed.
Extension of half-edges for the representation of multiresolution subdivision surfaces
Authors: Pierre Kraemer, David Cazier, Dominique Bechmann
Venue: The Visual Computer: International Journal of Computer Graphics (2009)

We address in this paper the problem of the data structures used for the representation and the manipulation of multiresolution subdivision surfaces. The classically used data structures are based on quadtrees, straightforwardly derived from the nested hierarchy of faces generated by the subdivision schemes. Nevertheless, these structures have some drawbacks: specificity to the kind of mesh (triangle or quad); the time complexity of neighborhood queries is not optimal; topological cracks are created in the mesh in the adaptive subdivision case. We present in this paper a new topological model for encoding multiresolution subdivision surfaces. This model is an extension to the well-known half-edge data structure. It allows instant and efficient navigation at any resolution level of the mesh. Its generality allows the support of many subdivision schemes including primal and dual schemes. Moreover, subdividing the mesh adaptively does not create topological cracks in the mesh. The extension proposed here is formalized in the combinatorial maps framework. This allows us to give a very general formulation of our extension.
Secrets of 5-Axis Machining, 1st edition
Authors: Karlo Apro
Venue:  (2008)

Up to now, the best way to get information on 5-axis machining has been by talking to experienced peers in the industry, in hopes that they will share what they learned. Visiting industrial tradeshows and talking to machine tool and CAD/CAM vendors is another option, only these people will all give you their point of view and will undoubtedly promote their machine or solution. This unbiased, no-nonsense, to-the-point overview of the 5-axis manufacturing industry presents information that was gathered during 30 years of hands-on experience in the manufacturing industry, bridging countries and continents, multiple languages both human and G-Code. As the only book of its kind, Secrets of 5-Axis Machining will demystify the subject and bring it within the reach of anyone who is interested in using this technology to its full potential, and is not specific to one particular CAD/CAM system. It is sure to empower readers to confidently enter this field, and by doing so, become better equipped to compete in the global market. Distinctive Features -Features full-color illustrations through that help to explain the theories and principals. -Includes a CD containing avi files, high quality illustrations, and sample parts.
A simple approach to shared storage database servers
Authors: Luís Soares, José Pereira
Venue: Proceedings of the Third Workshop on Dependable Distributed Data Management (2009)

This paper introduces a generic technique to obtain a shared-storage database cluster from an off-the-shelf database management system, without needing to heavily refactor server software to deal with distributed locking, buffer invalidation, and recovery from partial cluster failure. Instead, the core of the proposal is the combination of a replication protocol and a surprisingly simple modification to the common copy-on-write logical volume management technique: One of the servers is allowed to skip copy-on-write and directly update the original backing store. This makes it possible to use any shared-nothing database server software in a shared or partially shared storage configuration, thus allowing large cluster configurations with a small number of copies of data.
New Approach in Rapid Viruses Detection and Its Implementation on a Chip
Authors: Jaromír Hubálek, Vojtech Adam, René Kizek
Venue: Proceedings of the 2009 International Conference on eHealth, Telemedicine, and Social Medicine (2009)

Mortal viruses attack mankind last years and others can arrive early. The rapid detection of the viruses is very important to prevent against pandemic spread. The method of rapid detection is presented in this work. Techniques using micro- and nanotechnology are used for implementation of the method to lab on a chip. The paramagnetic particles are modified using biotechnology to make easy separation and electrochemical detection of viral nucleic acids. The method was approved for detection of viruses HIV and H5N1. Finally the device is designed with aim to prepare low-cost miniature system for mass screening in a case of pandemic.
VR juggler: a virtual platform for virtual reality application development
Authors: Allen Bierbaum, Christopher Just, Patrick Hartling, Kevin Meinert, Albert Baker, Carolina Cruz-Neira
Venue: ACM SIGGRAPH ASIA 2008 courses (2008)

Today, scientists and engineers are exploring advanced applications and uses of immersive systems that can be cost-effectively applied in their fields. However, one of the impediments of the wide-spread use of these technologies is the extensive technical expertise required of application developers. A software environment that provides abstractions from specific details of hardware configurations and low-level software tools is needed to provide a common base for the prototyping, development, testing and debugging of applications. This paper describes VR Juggler, a virtual platform for the creation and execution of immersive applications, that provides a virtual reality system-independent operating environment. We will focus on the approach taken to specify, design, and implement VR Juggler and the benefits derived from our approach.
An application requirement-based framework for adaptive middleware
Authors: Qing Wu, Danzhen Wang, Ying Li
Venue: Proceedings of the 3rd WSEAS international conference on Computer engineering and applications (2009)

High dynamic computing environments make QoS guarantee more important for component-based distributed system. Software system should possess self-tuning capacity for reacting to external environment variation. This paper firstly analyzes a model of component resource requirement and dependence relations among them those affect the quality of service. Then we propose an adaptive middleware framework that automatically tune server configuration parameters and react to workload changes to preserve the quality of service the application requires. The key of this framework is adopting backtracking algorithms, and it guides to search for the best combination of configuration parameters to satisfy application requirement and QoS requirement. Finally, it is prototyped on tomcat application server and validated using an information query system by comparing the performance requirement satisfaction with and without this framework. The results show that the application performance can be improved through this adaptive framework's regulation when the workload increases.
Multidimensional perfect reconstruction filter banks: an approach of algebraic geometry
Authors: Lei Zhang, Anamitra Makur
Venue: Multidimensional Systems and Signal Processing (2009)

In image compression and some other applications, multidimensional filter banks are gaining their popularity due to the decrease in implementation cost. In this article, we study these filter banks from a viewpoint of algebraic geometry, where some insights are emerging. Familiar properties, such as perfect reconstruction and linear phase, appear differently when studied from this new angle. For the sake of practicability and a better understanding of problems, our focus in this work is further restricted to the filter banks that can achieve linear phase and perfect reconstruction properties. According to different symmetry nature, the filter banks are categorized into two types. Filters in a multidimensional filter bank represented by multivariate polynomials have common zeros that are different in nature from their 1D counterparts. In this work, the relation between the above-mentioned properties and various zeros is investigated. A criterion to test such filter banks is proposed and this criterion is also interpreted in resultant theory. Based on these results, as well as a proposed conjecture, a factorization of lifting scheme is presented for one type of these filter banks. For the other type of filter banks, we propose a method on perfect reconstruction completion.