ppxscal/embedding_network huggingface dataset:
On measuring Java software
Authors: Ewan Tempero
Venue: Proceedings of the thirty-first Australasian conference on Computer science - Volume 74 (2008)

Software metrics have a reputation in industry of not being very useful. I believe one reason for this is that for most metrics one important aspect of them is usually not provided, namely the "entity population model". In measurement theory, an entity population model defines the typical values for measurements from a metric for a given set of entities. Having these models is necessary in order to interpret the measurements. For example, without knowing the entity population model for the body temperature of humans we would not know that someone with a temperature of 40 degrees would be a cause for concern. In order for software metrics to be useful we need to have a good understanding of their entity population models. In fact, we know very little about the entity population models for software metrics for anything but the simplest forms of measurements. We do have speculations, expectations, and even some theories as to what they should be, but there has been very little data published that can help us know which are correct and which are not. There are various reasons why we do not have this data. Often it is because we do not know how to measure something, reuse for example. Sometimes there is disagreement as to what to measure - there are more than 20 metrics for cohesion of object-oriented software for example. But it is also the case that we simply have not made a consistent and sustained attempt to make and report such measurements. The few empirical studies that do exist suffer from lacking sufficient detail to allow them to be reproduced, or are from such a small sample that little can be determined from them. This is the situation I and others are trying to change. In this talk I will discuss my experience in measuring Java software. I have found that just measuring a large collection of software provides interesting insights as to the state of current software development. It seems that no matter what is measured, the results are usually interesting and sometimes surprising. I will present some of these results. I will also discuss the issues involved in doing this kind of research. One such issue is making measurements that are reproducible. To address this issue, I advocate basing software metrics research on the use of standard software corpora, that is, creating collections of software whose contents are well-defined. However creating such a corpus is not just a matter of downloading stuff off the 'net. I discuss some of the difficulties that arise in developing a corpus of open source Java software.
Using smart cards for secure and device independent user interfaces
Authors: Robbie Schaefer, Wolfgang Mueller, Andres Marán López, Daniel Díaz Sánchez
Venue: Proceedings of the 4th international conference on mobile technology, applications, and systems and the 1st international symposium on Computer human interaction in mobile technology (2007)

Smart Cards are becoming a ubiquitous means for securing a wide range of interactive applications. However in many cases its use is limited for authentication purposes only. In this paper we extend the use of smart cards for carrying abstract user interface descriptions which can be rendered on different and potentially remote clients that in addition can support varying interaction modalities. This adds on the one hand to the security since a backend application cannot be used without the UI description, and on the other hand to the versatility of applications, since all devices with a respective renderer for certain modalities can be utilized.
A novel data hiding scheme for color images based on GSBTC
Authors: Chia-Chen Lin, Chu-Shiuan Lai, Wan-Ya Liao
Venue: Proceedings of the 2nd international conference on Ubiquitous information management and communication (2008)

To prevent content transmitted over the Internet, such as text, voice or even images, from being detected by potential interceptors, data hiding technology has been developed. The key point of this paper is to demonstrate how to embed a secret image into the compression codes generated by the GSBTC algorithm, such as the means of each color plane and the common bitmap of each block in a color cover image. Experiments have confirmed that the proposed scheme does allow legal receivers to retrieve secret images while keeping them hidden from predators. Although the original common bitmaps and the means of the color cover image are modified to hide the secret images, the difference between the PSNRs generated by original GSBTC and our scheme is not significant. Moreover, the size of compression codes generated by original GSBTC is the same as that generated by our hiding scheme. Therefore, attackers will not be able to sense the difference and thus detect hidden messages. Even if they do, our scheme can still combine the DES algorithm or the permutation function to enhance the security of the secret images.
The Effect of Coding on OFDM and Single Carrier Transmission with Decision Feedback Equalizer
Authors: T. J. S. Khanzada, A. R. Ali, A. S. Omar
Venue: Proceedings of the Communication Networks and Services Research Conference (2008)

Single Carrier Transmission (SCT) is a competing technique for Orthogonal Frequency Division Multiplexing (OFDM) in Broadband Wireless Systems (BWS). Recent developments in Frequency Domain Equalization (FDE) using Decision Feedback Equalization (DFE) have greatly improved the system based on the Single Carrier (SC) technique. This paper presents the comparison of the effect of coding on OFDM and SCT with DFE. SC-Linear Equalizer (SC-LE) and SC-DFE techniques are compared with OFDM-Cyclic Prefix (OFDM-CP), OFDM-Zero Padding OFDM-ZP). BER performance of these four techniques are compared with the coded version of the each. 1/2 rate convolutional code and Viterbi decoding are used to simulate the coding gain. A Wireless Local Area Network (WLAN) system as simulated for Frequency Selective Fading channel model with and without Inter Symbol Interference (ISI) encounter. Moreover CP and ZP variants of both OFDM and SC-DFE are simulated to compare the coding gains. More coding gain is comparatively achieved by the SC-DFE when ISI is encountered and by the OFDM when ISI is not encountered.
Coloring graphs from lists with bounded size of their union
Authors: Daniel Král', Jiří Sgall
Venue: Journal of Graph Theory (2005)

A graph G is k-choosable if its vertices can be colored from any lists L(&nu;) of colors with |L(&nu;)| &ge; k for all &nu; &epsilon; V(G). A graph G is said to be (k,퓁)-choosable if its vertices can be colored from any lists L(&frac12;) with |L(&nu;)| &ge;k, for all &nu;&epsilon; V(G), and with $|\bigcup_{{\nu}\in V(G)}\, L(\nu)|\le \ell$. For each 3 &le; k &le; 퓁, we construct a graph G that is (k,퓁)-choosable but not (k,퓁 + 1)-choosable. On the other hand, it is proven that each (k,2k - 1)-choosable graph G is O(k &middot; ln k &middot; 24k)-choosable. &copy; 2005 Wiley Periodicals, Inc. J Graph Theory
Fault-Tolerant Policy for Optical Network Based Distributed Computing System
Authors: Zhenyu Sun, Wei Guo, Yaohui Jin, Weiqiang Sun, Weisheng Hu
Venue: Proceedings of the 2008 Eighth IEEE International Symposium on Cluster Computing and the Grid (2008)

The optical network based distributed computing system has been thought as a promising technology to support large-scale data-intensive distributed applications. For such a system with so many heterogeneous resources and middlewares involved, faults seem to be inevitable. However, for those applications that need to be finished before the given deadline, a fault in the system will lead to the failure of the application. Therefore, fault-tolerant policy is necessary to improve the performance of the system when faults could happen. In this paper, we address to the fault-tolerant problem for the optical network based distributed computing system. We first propose an overlay approach which applies the existing fault-tolerant policies for distributed computing and optical network. Then we present a joint fault-tolerant policy which takes into account the fault tolerance for computing resource and network resource in the same time. We compare the performances of different polices by simulation. The simulation results show that the joint fault-tolerant policy achieves much better performances compared to overlay approaches.
A new approach for digital data transmission over GSM voice channel
Authors: Mahsa Rashidi, Abolghasem Sayadiyan
Venue: Proceedings of the 2nd WSEAS International Conference on Circuits, Systems, Signal and Telecommunications (2008)

One of the important objectives in mobile communication systems is secure voice and data communication (including text, picture, video and voice) especially in high bit rate. For this reason, in this paper, a new procedure is proposed in which the intended data or voice is encrypted and modulated onto speech-like waveforms; Then the modulated waveforms are transmitted over the global system for mobile communications (GSM) voice channel. Finally, these waveforms are demodulated and decrypted at the receiver. This paper focuses on designing an appropriate model for the GSM Full Rate (FR) speech codec by describing the data mapping scheme onto the basic parameters of speech-like waveforms i.e. formants' phase, frequency and pitch frequency. The proposed model has been evaluated for a GSM-to-GSM connection. It is observed that, using the proposed method, it's possible to transmit data at 1.15kbps with 0.2% bit error rate (BER) and after error control codes we achieve a 600 bps channel with 0.02% BER.
Fusion of Hand Based Biometrics Using Particle Swarm Optimization
Authors: M. Hanmandlu, Amioy Kumar, Vamsi Krishna Madasu, Prasad Yarlagadda
Venue: Proceedings of the Fifth International Conference on Information Technology: New Generations (2008)

Multi-modal biometrics has numerous advantages over unimodal biometric systems. Decision level fusion is the most popular fusion strategy in multimodal biometric systems. Recent research has shown promising performance of hand based biometrics, i.e. palmprint and hand geometry over other biometric modalities. However, the improvement in performance is constrained by the lack of optimal sensor points and fusion strategy. In this paper, we have implemented a particle swarm based optimization technique for selecting optimal parameters through decision level fusion of two modalities: palmprint and hand geometry. The experimental evaluation on a database of 100 users confirms the utility of the decision level fusion using particle swarm optimization.
The Emergence of Mobile Devices Influencing Learning from the Viewpoint of Convergences
Authors: Susanna Mann
Venue: Proceedings of the Fifth IEEE International Conference on Wireless, Mobile, and Ubiquitous Technology in Education (2008)

This paper describes the emergence of mobile devices influencing learning from the viewpoint of convergences. These convergences take place in three dimensions: (1) Technology: the convergence of mobile and Internet broadband technologies; (2) Collaboration: the convergence of distance collaborative learning with face-to-face collaborative learning; and (3) Curriculum: the convergence of curriculum-oriented formal learning with non-curriculum-oriented informal learning. This paper argues that these convergent developments become possible with the emergence of mobile devices which will most likely help learners make substantial gains in learning. However, the most important criteria for mobile devices to achieve full potential in learning depend on whether the mobile learning activities are set in a rich learning environment that enhances collaboration among learners and experts, as well as learners with their physical and social environment. Apart from that, mobile learning devices can also capture learners’ learning experiences, function as scaffolded problem-solving tools and also give opportunities for learners to access extra internet resources anywhere.
Classification of kinetics of macrosystems by the type of optimal processes
Authors: N. A. Alimova, V. V. Trushkov
Venue: Automation and Remote Control (2008)

Conditions under which a solution to an extremal problem satisfies a predetermined requirement are obtained. The condition is used for problems of optimal processes in thermodynamic and economic macrosystems.
An Initial Model and a Discussion of Access Control in Patient Controlled Health Records
Authors: Lillian Røstad
Venue: Proceedings of the 2008 Third International Conference on Availability, Reliability and Security (2008)

Health information about a patient is usually kept local to the hospital or clinic where the patient was treated. Patient Controlled Health Records (PCHR) has been proposed as a means to collect all this information and make it available to the patient. In a PCHR the patient is in control and determines who gets access to his health information. In this paper we present a set of usage scenarios to explore the concept of a PCHR. From the scenarios we deduce a set of concerns of relevance when designing an access control model for a PCHR. Finally we outline an initial access control model for a PCHR.
Empirical Performance Evaluation of Stretched Hypercubes
Authors: Sina Meraji, Hamid Sarbazi-Azad
Venue: Proceedings of the 22nd International Conference on Advanced Information Networking and Applications - Workshops (2008)

Stretched hypercube has recently been introduced as an attractive alternative to the well-known hypercube. Previous research on this network topology has mainly focused on topological properties and VLSI aspects of this network. In this paper, we propose some deterministic and adaptive routing algorithms for the stretched hypercubes. The performance of stretched hypercubes using the proposed routing algorithms is then evaluated by means of simulation experiments. Experiments are realized under different working loads and for different network factors.
Automatic Generation of Test Models for Model Transformations
Authors: Junhua Wang, Soon-Kyeong Kim, David Carrington
Venue: Proceedings of the 19th Australian Conference on Software Engineering (2008)

The Model Driven Architecture (MDA) is a software design approach initiated by OMG. MDA is intended to support model driven engineering of software systems. Under MDA, the central artifacts are models which are transformed to include platform-specific detail, and eventually to source code. Therefore, model transformations play a key role in making MDA succeed. However, much less attention has been given to the need to ensure that model transformations generate the intended results. This paper explores validation and verification of model transformations using testing techniques. The paper describes the steps for generating test input models from a given set of transformation rules and the corresponding source metamodel(s). The process of testing model transformations has been implemented in a prototype tool that is built using the Eclipse Modeling Framework (EMF).
Low damage ashing and etching processes for ion implanted resist and Si3N4 removal by ICP and RIE methods
Authors: X. Li, H. Zhou, J. Abrokwah, P. Zurcher, K. Rajagopalan, W. Liu, R. Gregory, M. Passlack, I. G. Thayne
Venue: Microelectronic Engineering (2008)

This paper presents a low damage, ion implantation mask removal process where the ion implantation mask, consisting of photoresist and Si"3N"4 deposited by room temperature ICP-CVD (inductively coupled plasma chemical vapour deposition), has been successfully removed through combining ICP (inductively coupled plasma) O"2 plasma ashing and SF"6/O"2 reactive ion etching (RIE) of the Si"3N"4. The process leaves a clean, smooth post-etching surface with rms roughness of less than 1nm, on a device quality, high-@k Ga"xGd"yO"z (GGO) oxide layer for the fabrication of III-V metal-oxide-semiconductor field-effect-transistors (MOSFETs). Equally importantly, no etch induced damage occurs in the underlying high mobility III-V semiconductor layers. The post-etched GGO surface roughness and electrical transport properties of the underlying device layer structures were characterised by atomic force microscopy (AFM) and sonogage, respectively.
Complexity measures of sign matrices
Authors: Nati Linial, Shahar Mendelson, Gideon Schechtman, Adi Shraibman
Venue: Combinatorica (2007)

In this paper we consider four previously known parameters of sign matrices from a complexity-theoretic perspective. The main technical contributions are tight (or nearly tight) inequalities that we establish among these parameters. Several new open problems are raised as well.
DATC Newsletter
Authors: Joe Damore
Venue: IEEE Design Test (2008)

This newsletter provides news, events, and information related to the IEEE Computer Society's Design Automation Technical Committee and the EDA community.
Implementation of Ubiquitous Personal Study Using Web 2.0 Mash-up and OSS Technologies
Authors: Hong Chen, Nozomi Ikeuchi, Qun Jin
Venue: Proceedings of the 22nd International Conference on Advanced Information Networking and Applications - Workshops (2008)

The information resources on the Web are diversified, and the amount is increasing rapidly. Demands for selecting useful information from the Internet, managing personal contents, and sharing contents under control have risen. In this study, we propose the Ubiquitous Personal Study (UPS), a framework of personalized virtual study to support accessing, managing, organizing, sharing and recommending information. In this paper, we focus on discussing the issues on how to implement it with Web 2.0 mash-up technology and Open Source Software.
Machine Learning Approach for Ontology Mapping Using Multiple Concept Similarity Measures
Authors: Ryutaro Ichise
Venue: Proceedings of the Seventh IEEE/ACIS International Conference on Computer and Information Science (icis 2008) (2008)

This paper presents a new framework for the ontology mapping problem. We organized the ontology mapping problem into a standard machine learning framework, which uses multiple concept similarity measures. We presented several concept similarity measures for the machine learning framework and conducted experiments for testing the framework using real-world data. Our experimental results show that our approach has increased performance with respect to precision, recall and F-measure in comparison with other methods.
Risk discovery of car-related crimes from urban spatial attributes using emerging patterns
Authors: Atsushi Takizawa, Fumie Kawaguchi, Naoki Katoh, Kenji Mori, Kazuo Yoshida
Venue: International Journal of Knowledge-based and Intelligent Engineering Systems (2007)

Using spatial data mining techniques, we analyze car-related crimes such as auto theft, auto parts theft, and breaking into a car in the area of Nishikyo-ku, Kyoto City. The strategy of natural surveillance proposed by Crime Prevention Through Environmental Design (CPTED) is taken into consideration as visibility attributes. From the viewpoint of risk discovery, we do not employ ordinary association rule but a new data mining technique called Emerging Patterns (EPs). EP is defined as an itemset whose support increases significantly from one dataset to another. Since a large number of EPs are generated in general as in association rule, it is difficult to identify the critical factors which affect crime occurrences. Therefore, we will introduce two new ideas; (a) appropriately aggregating several EPs with high growth-rate and (b) identifying a pair of similar patterns A and B such that A is not associated with high crime occurrences while B is highly correlated with crime occurrences. Finding such similar patterns reveals that the attribute value which is in B but not in A is then identified as a critical factor which arouses crimes when combined with certain factors.
Dense packings from quadratic fields and codes
Authors: Chaoping Xing
Venue: Journal of Combinatorial Theory Series A (2008)

In the present paper, we make use of the quadratic field Q(-3) to construct dense packings in the Euclidean spaces. With the help from good error-correcting codes, we are able to produce several packings with the best-known densities. Furthermore, if we assume that the best upper bound in coding theory developed by Aaltonen, Ben-Haim and Litsyn could be achieved, then the Minkowski bound would be improved.
SLA Monitoring and Management Framework for Telecommunication Services
Authors: Jacek Kosinski, Piotr Nawrocki, Dominik Radziszowski, Krzysztof Zielinski, Slawomir Zielinski, Grzegorz Przybylski, Pawel Wnek
Venue: Proceedings of the Fourth International Conference on Networking and Services (2008)

This paper presents SLA monitoring and management framework for telecommunication services. The basic requirements of this class of systems are specified and verified in context of existing SLA standards and tools. The proposed system architecture is very general and may interoperate with the existing performance monitoring systems and management tools. The key design effort is focused on the general mapping between observed activities of the underlying telecommunication infrastructure elements and corresponding SLA instance object state construction. The proposed framework application is illustrated by the simple case study.
Feasibility study of TFT-LCD array tester using low voltage micro-columns
Authors: H. S. Kim, D. W. Kim, S. J. Ahn, Y. C. Kim, S. S. Park, K. W. Park, N. W. Hwang, S. W. Jin
Venue: Microelectronic Engineering (2008)

Since Chang et al. reported the pioneering concept of micro-column, researches on the micro-column have been devoted to its application to low energy electron beam lithography with high throughput capabilities using arrayed micro-column structure [E. Kratschmer, H.S. Kim, M.G.R. Thomson, K.Y. Lee, S.A. Rishton, M.L. Yu, S. Zolgharnain, B.W. Hussey, T.H.P. Chang, J. Vac. Sci. Technol. B 14(6) (1996) 3792; T.H.P. Chang, M.G.R. Thomson, E. Kratschmer, H.S. Kim, M.L. Yu, K.Y. Lee, S.A. Rishton, B.W. Hussey, S. Zolgharnian, J. Vac. Sci. Technol. B 18(6) (1996) 3774; L.P. Muray, J.P. Spallas, C. Stebler, K. Lee, M. Mankos, Y. Hsu, M. Gmur, T.H.H. Chang, J. Vac. Sci. Technol. B 18(6) (2000) 3099; H.S. Kim, D.W. Kim, S. Ahn, Y.C. Kim, J. Cho, S.K. Choi, D.Y. Kim, Microelectron. Eng. 55 (2005) 78-79]. Also, developing inspection systems using micro-columns can be a promising technology for the production of next generation devices with narrow line-width since the low energy (
A Real-Time Java Component Model
Authors: Ale Plek. Philippe Merle, Lionel Seinturier
Venue: Proceedings of the 2008 11th IEEE Symposium on Object Oriented Real-Time Distributed Computing (2008)

The Real-Time Specification for Java (RTSJ) is becoming a popular choice in the world of real-time programming. However, the complexities introduced by RTSJ bring the needs for an extensive framework comprising all the aspects of RTSJ development. As the first contribution of this paper, we present a real-time component model directly fitting the needs of RTSJ. Our motivation is to clearly separate real-time and business concerns of applications. We further argue that the RTSJ concerns need to be considered at early stages of architecture design in order to mitigate the complexities of the implementation phase. Therefore, as our second contribution, we propose a design process introducing gradually RTSJ concepts into the architecture. We are thus able to alleviate the development of real-time systems and to tailor them for different real-time conditions. Finally, we demonstrate the feasibility of our solution on an example scenario.