ppxscal/embedding_network huggingface dataset:
Two-level Classifier Scheme for Efficient Eye Location
Authors: Xi Wang, Sung Kwan Kang, Phill Kyu Rhee
Venue: Proceedings of the 2007 Frontiers in the Convergence of Bioscience and Information Technologies (2007)

In this paper, we present a novel method which uses a two-level classifier scheme for eye location. It aims for an efficient eye location process with high environment variance. In this scheme, the image context is organized in the first-level. The second-level classifier performs an actual object detection using two-class discrimination classifier. However, the problem of how to identify the optimal cluster for test images is not yet solved clearly. So we describe a novel method, for first-level getting multiple candidate clusters, and for second-level fusing the outcomes of candidate classifiers which are based on the candidate clusters in first-level. It allows carrying out eye location mission in an optimal way under high environment variance such as illumination intensity, direction, etc. The eye location system achieves the capacity of the high accuracy and change-tolerance by taking advantage of two-level classifier scheme. The experimental results show that the eye location system can achieve superior performance to previously one with the proposed scheme.
Identifying Disease Susceptible DNA Regions Using Underlying Odds Ratio Contour Analysis
Authors: Santitham Prom-on, Jonathan Chan, Asawin Meechai, Wallaya Jongjaroenprasert, Boonsong Ongphiphadhanakul
Venue: Proceedings of the 2008 International Conference on Biocomputation, Bioinformatics, and Biomedical Technologies (2008)

Odds ratio plays important roles in identifying and assessing disease susceptible SNPs in the case-control association study. However, the contour of odds ratio has too much variation to identify the disease susceptible DNA region. This paper proposes the Odds Ratio Contour Analysis (ORCA), a method for analyzing of odds ratio contour in genome-wide SNP association study. This method smoothes the odds ratio contour and discriminates disease susceptible regions out of the others. We have preliminarily tested ORCA with SNPs data from pooled DNA genome-wide SNP association study of type 2 diabetes mellitus (T2DM), including four pools as cases and five pools as controls. Each DNA pool was assayed on Affymetrix GeneChip® Mapping 10K Array. With an optimal threshold level, ORCA can effectively highlight disease-associated regions, which reduce the false positive rate that has been one of the major problems in high-throughput case-control association study.
Blowing the Whistle on Sarbanes-Oxley: Anonymous Hotlines and the Historical Stigma of Denunciation in Modern Germany
Authors: Judith Rauhofer
Venue: International Review of Law, Computers and Technology (2007)

The Sarbanes-Oxley Act requires listed US companies as well as non-US companies listed on a US stock exchange to establish procedures for dealing with confidential, anonymous employee submissions regarding questionable accounting or auditing matters. Companies failing to comply with these 'whistleblowing' requirements are subject to heavy sanctions. This paper examines the compatibility of whistleblowing requirements contained in the US Sarbanes-Oxley Act with German data protection, employment and constitutional law, and analyses the roots of the historical unease with and the stigma attached to whistleblowing schemes in Germany which result from its experiences with denunciation during the Third Reich and in the former GDR.
Tricking people into feeling like they are moving when they are not paying attention
Authors: Laura C. Trutoiu, Stephan Streuber, Betty J. Mohler, Jörg Schulte-Pelkum, Heinrich H. Bülthoff
Venue: Proceedings of the 5th symposium on Applied perception in graphics and visualization (2008)

Vection refers to illusion of self motion in stationary obervers usually by means of moving visual stimuli [Fischer and Kornm&uuml;ller 1930]. Linear vection naturally occurs when seated in a train and observing another train on an adjacent track start moving. The very compelling but brief illusion happens as observers are not paying particular attention to the environment but are rather "defocused" from the scene. We studied the effect of two visual attention tasks on the perception of linear vection. The results show a significant decrease in vection onset time with an attention task.
On the non-existence of even degree graphs with diameter 2 and defect 2
Authors: Mirka Miller, Minh H. Nguyen, Guillermo Pineda-Villavicencio
Venue: Proceedings of the fourteenth symposium on Computing: the Australasian theory - Volume 77 (2008)

Using eigenvalue analysis, it was shown by Erd&ouml;s et al. that, with the exception of C4, there are no graphs of diameter 2, maximum degree d and d2 vertices. In this paper, we show that graphs of diameter 2, maximum degree d and d2-1 vertices do not exist for most values of d, when d is even, and we conjecture that they do not exist for any even d greater than 4.
A New Approach on Interactive SOA Security Model Based on Automata
Authors: Hamidreza Amouzegar, Shahriar Mohammadi, Mohammad Jafar Tarokh, Anahita Naghilouye Hidaji
Venue: Proceedings of the Seventh IEEE/ACIS International Conference on Computer and Information Science (icis 2008) (2008)

Service oriented architecture is a new important approach for all electronic devices and applications such as e-payment systems. Statelessness of basic service architecture model is based on four principles: loose coupling, abstraction, autonomy, and security. Statelessness eliminates a lot of benefits in service providing. This paper presents Automata-Based model for interactive services and focuses on security for interactive SOA in state-full environments. The purpose of this paper is to propose a new extended solution for e-applications to communicate simpler while session management is been done by server helps the client to have better development and interaction.
Numerical simulations for long range guided waves nondestructive testing by a wavelet based two port equivalent
Authors: F. Bertoncini, A. Musolino, M. Raugi, F. Turcu
Venue: Proceedings of the 5th WSEAS/IASME International Conference on Systems Theory and Scientific Computation (2005)

In this paper the effectiveness of a procedure that allows the detection of a defect by the analysis of parameters of a two port equivalent of a NDT ultrasound guided waves system is investigated. A wavelet expansion of the input (transmitted) and output (reflected) signals has been carried out and a constant coefficient matrix behaving as a transfer function between the input and output port has been defined. The two port equivalent representation correctly simulates the complete system under a wide range of input waveforms in the actual operating condition. The effectiveness of this method to detect and locate defects in the pipes has been investigated.
MIMO-OFDM for the Better Quality Link of Wireless Network
Authors: Long Bora, Heau Jo Kang, Yoon Ho Kim
Venue: Proceedings of the 2008 International Conference on Information Security and Assurance (isa 2008) (2008)

In this paper we will study on features of the future wireless network generation such as the antenna schemes and the modulation systems. We also observe the direction of the next generation of wireless network system. Since MIMO, the smart antenna technique, is known by its quality of data transmission there are many researchers who pay more attention to study on this antenna scheme in the purpose to improve performance of transmission at uplink and downlink. In the same time the only improving on the antenna schemes alone cannot fulfill the requirement of the next wireless network generation, known as 4G, we also need the modulation system which can bring the performance of the current wireless network to another level, therefore we will take a close look on the specifications of OFDM modulation scheme. Finally we will see what can the MIMO-OFDM promises for the 4G communication system.
Ballooned Wireless Mesh Network for Emergency Information System
Authors: Yoshitaka Shibata, Yosuke Sato, Naoki Ogasawara, Go Chiba
Venue: Proceedings of the 22nd International Conference on Advanced Information Networking and Applications - Workshops (2008)

In this paper, a ballooned wireless network is proposed to promptly insure communication means to grasp the information with disaster area, resident’s safety and relief goods on the occurrence of disaster. By combining multiple ballooned wireless networks, an adhoc network is organized in the sky on the disaster area, shelters or interrupted communication area as urgent communication means. The system configuration and its function are described. A prototype system is constructed to evaluate its function and performance through several disaster applications such as WIide area Disaster Information and Sharing System, VoIP, and omni-directional video surveillance system.
A Simple DNA Chip for Diagnosis of Most Common Corneal Dystrophies Caused by βigh3 Gene Mutations
Authors: So Young Yoo, Tae-im Kim, Sang Yup Lee, Eng Kweon Kim, Ki Chang Keum, Nae Choon Yoo, Won Min Yoo
Venue: Proceedings of the 2007 Frontiers in the Convergence of Bioscience and Information Technologies (2007)

The aim of this study is to develop and evaluate a rapid diagnostic DNA chip to detect most common igh3 mutations which cause corneal dystrophies (CDs). Recent studies have shown that LASIK can worsen the CDs, and thus initial screening of igh3 gene mutation is urgently needed before LASIK. Direct sequencing of the exons 4 and 12 of the relevant gene showed that CDs could be mostly divided into homozygous Avellino CD and heterozygous Avellino CD, Heterozygous Lattice Type I, heterozygous Reis-Buckers CD and heterozygous Granular CD. In our previous study, suitable primer and probe sets were designed and DNA chip diagnosing these CDs was successfully developed. Mutations were then identified by signals of the probes immobilized on DNA chip developed and evaluated based on the DNA sequencing results. 327 participants volunteered for this test. Diagnosis was firstly performed by slit-lamp eye examination which is common medical diagnostic method and each DNA sample from peripheral blood was analyzed by DNA chip developed. All the tests were performed as blind tests. The evaluation was finally done by comparing with the DNA sequencing results. We concluded that this rapid genotyping using DNA chip allowed successful detection of CDs with 100% sensitivity and specificity. We thus expect that this simple DNA chip can be a perfect substitute for the routine clinical diagnosis, which will help in making precise diagnoses of patients.
A Formal Model for Network-Wide Security Analysis
Authors: Petr Matouek, Jaroslav Ráb, Ondrej Ryavy, Miroslav Svéda
Venue: Proceedings of the 15th Annual IEEE International Conference and Workshop on the Engineering of Computer Based Systems (2008)

Network designers perform challenging tasks with so many configuration options that it is often hard or even impossible for a human to predict all potentially dangerous situations. In this paper, we introduce a formal method approach for verification of security constraints on networks with dynamic routing protocols in use. A unifying model based on packet-filters is employed for modelling of network behaviour. Over this graph model augmented with filtering rules over edges verification of reachability properties can be made. In our approach we also consider topology changes caused by dynamic routing protocols.
Stable and Fair MANETs: A Scalable Multi-Measure Clustering Framework
Authors: Ahmed M. Mahdy, Jitender S. Deogun
Venue: Proceedings of the Seventh International Conference on Networking (2008)

Many techniques have been proposed for the clustering and selection of clusterheads in mobile ad hoc networks. However, most existing techniques use only a single quality measure to distinguish between the capabilities of the nodes in the selection of clusterheads. This bounds the efficiency of the selection process and degrades network performance. In this paper, we present a scalable clustering framework that can generate flexible clustering techniques that use as many quality measures as desired. The proposed framework allows customization of the clustering techniques in order to seek specific network merits such as stability and fairness. Simulation results show significant improvements on overall network performance when using a clustering technique, developed using proposed framework, over existing Lowest ID technique.
A Cross-Layer Fine-Tuning Scheduling Scheme to Provide Proportional Delay Differentiation in a Wireless LAN
Authors: Yuan Cheng Lai, Arthur Chang, Ching-Neng Lai, Chih-Chung Lin
Venue: Proceedings of the 22nd International Conference on Advanced Information Networking and Applications (2008)

This paper addresses how to provide the proportional delay differentiation (PDD) in a wireless LAN (WLAN) and proposes a cross-layer fine-tuning scheduling (CFS) scheme with the goal to maintain PDD among all wireless stations while improving performance in a WLAN. CFS additionally considers the time-varying channel capacity to schedule packets, finely tunes the contention window, and properly arbitrates the backoff time. Also, it operates in a fully distributed manner among all stations and in a cross-layer approach in each station. The simulation results demonstrate that the CFS scheme can provide more satisfactory PDD and higher performance in a WLAN, compared with 802.11e.
A nonconforming finite element method for a two-dimensional curl&#x2013;curl and grad-div problem
Authors: S. C. Brenner, J. Cui, F. Li, L.-Y. Sung
Venue: Numerische Mathematik (2008)

A numerical method for a two-dimensional curl&#x2013;curl and grad-div problem is studied in this paper. It is based on a discretization using weakly continuous P 1 vector fields and includes two consistency terms involving the jumps of the vector fields across element boundaries. Optimal convergence rates (up to an arbitrary positive $${\epsilon}$$) in both the energy norm and the L 2 norm are established on graded meshes. The theoretical results are confirmed by numerical experiments.
An efficient ant colony optimization approach to attribute reduction in rough set theory
Authors: Liangjun Ke, Zuren Feng, Zhigang Ren
Venue: Pattern Recognition Letters (2008)

Attribute reduction in rough set theory is an important feature selection method. Since attribute reduction is an NP-hard problem, it is necessary to investigate fast and effective approximate algorithms. In this paper, we introduce a new approach based on ant colony optimization (ACO) for attribute reduction. To verify the proposed algorithm, numerical experiments are carried out on thirteen small or medium-sized datasets and three gene expression datasets. The results demonstrate that this algorithm can provide competitive solutions efficiently.
A projection-based optimization framework for abstractions with application to the unstructured mesh domain
Authors: Brian S. White, Sally A. McKee, Daniel Quinlan
Venue: Proceedings of the 22nd annual international conference on Supercomputing (2008)

Computational scientists often must choose between the greater programming productivity of high-level abstractions, such as matrices and mesh entities, and the greater execution efficiency of low-level constructs. Performance is degraded when abstraction indirection introduces overhead and hinders compiler analysis. This can be overcome by targeting the semantics, rather than the implementation, of abstractions. Raising operators specified by a domain expert project an application from an implementation space to an abstraction space, where optimizations leverage domain semantics to complement conservative analyses. Raising operators define a domain-specific intermediate representation, which optimizations target for improved portability. Following optimization, transformed code is reified as a concrete implementation via lowering operators. We have developed a framework to implement this optimization strategy, which we use to introduce two domain-specific unstructured mesh optimizations. The first uses an inspector/executor approach to avoid costly traversals over a static mesh by memoizing the relatively few references required for mathematical computations. The executor phase accesses stored entities without incurring the indirections. The second optimization lowers object-based mesh access and iteration to a low-level implementation, which uses integer-based access and iteration.
An ontology for causal relationships between news and financial instruments
Authors: Shanshan Wang, Zhang Zhe, Ye Kang, Huaiqing Wang, Xiaojian Chen
Venue: Expert Systems with Applications: An International Journal (2008)

In recent years, people have begun to pay more and more attention to the effect of news on financial instrument markets (i.e., the markets for trading financial instruments). Researchers in the financial domain have conducted many studies demonstrating the effect of different types of news on trade activities in financial instrument markets such as volatility in trade price, trade volume, trading frequency, and so on. In this paper, an ontology for knowledge about news regarding financial instruments is provided. The ontology contains two parts: the first part presents a hierarchy framework for the domain knowledge that primarily includes classes of news, classes of financial instrument markets participants, classes of financial instruments, and primary relations between these classes. In the second part, a causal map is used to demonstrate how classes of news are causally related with classes of financial instruments. Finally, a case concerning the ''9/11 American terror attack'' is analyzed. On the basis of the ontology, it is first comprehensive to understand the knowledge about news in financial instrument markets; second, it helps building trading models based on news in the financial instrument markets; third, systems (e.g., systems for prediction of stock price based on news, systems for supporting financial market participants to search relevant news) design and development in this domain are facilitated and supported by this ontology.
RGPS: a unified requirements meta-modeling frame for networked software
Authors: Jian Wang, Keqing He, Ping Gong, Chong Wang, Rong Peng, Bing Li
Venue: Proceedings of the 3rd international workshop on Applications and advances of problem frames (2008)

Networked software, a special kind of applications in service-oriented computing and ultra-large-scale systems, is a complex software system deploying on network environment. Requirements engineering of networked software poses many problems owing to the dynamic topology structure, users' uncertainty, and continuous growing requirements. Towards these problems, a unified requirements meta-modeling frame for networked software named RGPS is proposed by merging functional and nonfunctional requirements. Particularly, two kinds of nonfunctional requirements, context and trustworthy requirements, are taken into account in this paper. RGPS serves as a unified basis for requirements engineering of networked software. Meta-models of the RGPS frame are introduced in detail. In addition, a case study in urban transportation domain is illustrated to explain the RGPS frame.
A Methodology for Developing Computational Implementations of Scientific Theories
Authors: Peter C. R. Lane, Fernand Gobet
Venue: Proceedings of the Tenth International Conference on Computer Modeling and Simulation (2008)

Computer programs have become a popular representation for scientific theories, particularly for implementing models or simulations of observed phenomena. Expressing a theory as an executable computer program provides many benefits, including: making all processes concrete, supporting the development of specific models, and hence enabling quantitative predictions to be derived from the theory. However, as implementations of scientific theories, these computer programs will be subject to change and modification. As programs change, their behaviour will also change, and ensuring continuity in the scientific value of the program is difficult. We propose a methodology for developing computer software implementing scientific theories. This methodology allows the developer to continuously change and extend their software, whilst alerting the developer to any changes in its scientific interpretation. We introduce tools for managing this development process, as well as for optimising the developed models.
Improving Wireless Health Monitoring Using Incentive-Based Router Cooperation
Authors: Upkar Varshney
Venue: Computer (2008)

Healthcare providers could use ad hoc networks to supplement the sometimes spotty and unreliable coverage of infrastructure-oriented wireless networks for patient monitoring. A proposed incentive-based approach encourages devices to cooperate as routers, significantly improving message delivery reliability.
Prioritized Contention Resolution Scheme for Grid Services over OBS Networks
Authors: Burak Kantarci, Sema Oktug, D. Turgay Altilar
Venue: Proceedings of the Communication Networks and Services Research Conference (2008)

In this paper a novel contention resolution scheme, namely Expanded Priority Vector (EPV) approach is proposed to support differentiated Grid service over OBS networks. EPV is an enhancement to a previously proposed application-aware contention resolution scheme for the OBS-based-Grid services in the literature. By using the EPV, we keep all the advantages of the application-aware contention resolution. Moreover, we introduce fairness among the contending jobs of the same class by taking care of the two least significant digits of the vector. Those two digits pay attention to the remaining distance to the resource and the job size. By simulations, we show that EPV based policy reduces the blocking probability for all classes of submitted jobs.
On the optimum choice of a threshold in a frequency hopping OFDMA system
Authors: V. V. Zyablov, D. S. Osipov
Venue: Problems of Information Transmission (2008)

We consider a frequency hopping orthogonal frequency-division multiple access (FH OFDMA) system different from those previously described. To find the probability density function of the variable used by the detector, we propose an approach based on the characteristic function method and Bessel function technique. Based on this approach, we obtain an expression for the desired density function (in the most probable case of a collision of multiplicity two) and an expression for the optimum threshold value, which enables us to compute it to any desired degree of accuracy. Efficiency of our approach is justified by simulation results.
Securing peer-to-peer media streaming systems from selfish and malicious behavior
Authors: William Conner, Klara Nahrstedt
Venue: Proceedings of the 4th on Middleware doctoral symposium (2007)

We present a flexible framework for throttling attackers in peer-to-peer media streaming systems. In such systems, selfish nodes (e.g., free riders) and malicious nodes (e.g., DoS attackers) can overwhelm the system by issuing too many requests in a short interval of time. Since peer-to-peer systems are decentralized, it is difficult for individual peers to limit the aggregate download bandwidth consumed by other remote peers. This could potentially allow selfish and malicious peers to exhaust the system's available upload bandwidth. In this paper, we propose a framework to provide a solution to this problem by utilizing a subset of trusted peers (called kantoku nodes) that collectively monitor the bandwidth usage of untrusted peers in the system and throttle attackers. This framework has been evaluated through simulation thus far. Experiments with a full implementation on a network testbed are part of our future work.