ppxscal/embedding_network huggingface dataset:
Pig latin: a not-so-foreign language for data processing
Authors: Christopher Olston, Benjamin Reed, Utkarsh Srivastava, Ravi Kumar, Andrew Tomkins
Venue: Proceedings of the 2008 ACM SIGMOD international conference on Management of data (2008)

There is a growing need for ad-hoc analysis of extremely large data sets, especially at internet companies where innovation critically depends on being able to analyze terabytes of data collected every day. Parallel database products, e.g., Teradata, offer a solution, but are usually prohibitively expensive at this scale. Besides, many of the people who analyze this data are entrenched procedural programmers, who find the declarative, SQL style to be unnatural. The success of the more procedural map-reduce programming model, and its associated scalable implementations on commodity hardware, is evidence of the above. However, the map-reduce paradigm is too low-level and rigid, and leads to a great deal of custom user code that is hard to maintain, and reuse. We describe a new language called Pig Latin that we have designed to fit in a sweet spot between the declarative style of SQL, and the low-level, procedural style of map-reduce. The accompanying system, Pig, is fully implemented, and compiles Pig Latin into physical plans that are executed over Hadoop, an open-source, map-reduce implementation. We give a few examples of how engineers at Yahoo! are using Pig to dramatically reduce the time required for the development and execution of their data analysis tasks, compared to using Hadoop directly. We also report on a novel debugging environment that comes integrated with Pig, that can lead to even higher productivity gains. Pig is an open-source, Apache-incubator project, and available for general use.
Puppy Linux
Authors: Louis Iacona
Venue: Linux Journal (2008)

Check out this lightweight distro.
Enhancing Route Recovery for QAODV Routing in Mobile Ad Hoc Networks
Authors: Nityananda Sarma, Sukumar Nandi, Rakesh Tripathi
Venue: Proceedings of the The International Symposium on Parallel Architectures, Algorithms, and Networks (2008)

Due to bandwidth constraint and highly dynamic topology of mobile ad hoc networks, supporting Quality of Service (QoS) is a challenging task. In this paper, we present two efficient route recovery mechanisms for QoS routing based on an extension of the AODV (Ad hoc On Demand Distance Vector) routing protocol that deals with delay and bandwidth constraints. One is based on route maintenance by intermediate node using a special local route repair mechanism and the other one is route maintenance by the destination node. Our methods reduce control overhead and delay incurred while following the traditional approach of route recovery. The simulation results reveal the performance improvements in terms of control overhead, end-to-end delivery ratio and connection setup latency.
A Paradigm Shift in the Design of Mobile Applications
Authors: Luiz Lima Jr, Alcides Calsavara
Venue: Proceedings of the 22nd International Conference on Advanced Information Networking and Applications - Workshops (2008)

Mobility has emerged as an important new trend in the arena of distributed computing bringing along with it deep social and technical transformations. These changes clearly create an increasing demand for applications and middleware that exploit and support mobility. This paper surveys the main classes of paradigms and middlewares for distributed (mobile) systems and proposes a new paradigm inspired in the concept of magnetic fields from physics. The model is then formally defined and implementation issues concerning extensions to be applied to current middlewares in order to support the paradigm are detailed. Finally, conclusions are drawn and the main future works are listed.
The Security Requirements Behavior Model for Trustworthy Software
Authors: Kassem Saleh, Maryam Habil
Venue: Proceedings of the 2008 International MCETECH Conference on e-Technologies (2008)

The demand for web services and applications in cyberspace is hindered by security concerns that are raised by corporate service providers and service users. There are concerns about the trustworthiness of the web services from both sides of the spectrum. Testing web services security is a critical step towards enhancing their trustworthiness. To address these issues, we propose a comprehensive framework for specifying security requirements for web services and web applications. Based on these comprehensive security requirements specifications, formal security test case generation can then be derived and performed. In this paper, we introduce the Security Requirements Behavior Model (SRBM) to help obtaining secure and hence trustworthy web services and applications. Using Firesmith’ security requirements categories, the SRBM is based on Sindre’s misuse cases, Firesmith’s security use cases,and the operational model of computer security.
A research in the tele-working of the intelligent device for Anti-disaster security
Authors: Shieh-Shing Lin
Venue: Proceedings of the 5th WSEAS International Conference on Computational Intelligence, Man-Machine Systems and Cybernetics (2006)

In this paper, the 'An Intelligent Device for Anti-Disaster Security' is designed by the following micro-computer hardware interface rules: the temperature combination sensor, the smoke inductor, the humidity sensor, the gas inductor, the infrared radiation sensor, A/D converter. While the disaster occurs, the 'An Intelligent Device for Anti-Disaster Security' will start the security protection installation and start the dialing system to notify the house owner and the police station. We can monitor the entire status of the house by the computer video-monitoring system. The strengths of the 'An Intelligent Device for Anti-Disaster Security' are: Easy Installation, easy maintenance. Complete functions, anti-disaster and alarm-security are focused and Free monthly rent, cost saving.
Complexity in wireless scheduling: impact and tradeoffs
Authors: Yung Yi, Alexandre Proutière, Mung Chiang
Venue: Proceedings of the 9th ACM international symposium on Mobile ad hoc networking and computing (2008)

It has been an important research topic since 1992 to maximize stability region in constrained queueing systems, which includes the study of scheduling over wireless ad hoc networks. In this paper, we propose a framework to study a wide range of existing and future scheduling algorithms and characterize the achieved tradeoffs in stability, delay, and complexity. These characterizations reveal interesting properties hidden in the study of any one or two dimensions in isolation. For example, decreasing complexity from exponential to polynomial, while keeping stability region the same, generally comes at the expense of exponential growth of delays. Investigating trade-offs in the 3-dimensional space allows a designer to fix one dimension and vary the other two jointly. For example, incentives for using scheduling algorithms with only partial throughput-guarantee can be quantified with regards to delay and complexity. Trade-off analysis is then extended to systems with congestion control through utility maximization for non-stabilizable arrival inputs, where the complexity-utility-delay trade-off is shown to be different from the complexity-stability-delay tradeoff. Finally, we analyze more practical models with bounded message size, and consider "effective throughput" which reflects resource occupied by control messages. We show that effective throughput may degrade significantly in certain scheduling algorithms, and suggest a mechanism to avoid this problem in light of the 3D tradeoff framework.
Computational morphogenesis applied to 2D structures generation
Authors: Enrique Fernández-Blanco, Julián Dorado, Juan Ramón Rabuñal, Marcos Gestal, Nieves Pedreira
Venue: Proceedings of the 5th WSEAS International Conference on Computational Intelligence, Man-Machine Systems and Cybernetics (2006)

This paper presents a new model that can be framed into the so known as Computational Embryology or Natural Computation. This discipline takes the behaviour of biological cells and tries to adapt some of their characteristics to the artificial cells in order to solve computational problems. Besides the theoretical approach, some of the tests that were performed as preliminary implementation of such model are also presented. In this test, simple forms are generated using the development of the cell model.
Poly Harmonic Staggered Broadcasting Method for Efficient Video on Demand Service
Authors: Sang-Seok Jung, Joo-Han Lee, Sung-Kwon Park
Venue: Proceedings of the 2008 11th IEEE Symposium on Object Oriented Real-Time Distributed Computing (2008)

Many research works have focused on developing multimedia applications such as video conferencing and Video-on-Demand (VoD). From this trend, we see that the VoD service will become the main issue in future. However, service providers don’t efficiently provide VoD services for a great number of clients yet. One of the reasons is the high cost in providing VoD services. Because a multimedia service consumes wide bandwidth in spite of great advances of video compression, network bandwidth resource must significantly be spent to maintain multiple clients concurrently. To overcome this problem, we proposed a new transmission method using the broadcast, named as a Poly Harmonic Staggered Broadcasting (PHSB) method. The proposed method is an efficient transmission method that has a simple structure of the staggered broadcasting method and substantially improved bandwidth efficiency of the poly harmonic broadcasting method. The numerical results show that the viewer’s waiting time of the PHSB method is close to the waiting time of the harmonic broadcasting method which theoretically has the best bandwidth efficiency. Furthermore, the maximum buffer requirements of this can be adapted by adjusting the short front part of a video size.
Tabula Rasa: Pitfalls and Possibilities with Clean Slate Initiatives
Authors: Arnold W. Bragg
Venue: IT Professional (2008)

If an IT system is so so hopelessly and fundamentally flawed that there's no practical way to address its deficiencies one by one, a clean slate initiative might be the only way out of the swamp. The key is to make sure the drivers are sound, the process is retrospective, the solution is robust, and expectations are realistic.
Caspase-8 Regulates Caspase-3 and Rb Respectively in Fas- and Actinomycin D-Mediated Apoptosis Pathway in Human Hepatoma Bel-7402 Cells
Authors: Yu Wang, Liguang Sun, Chunhui Xia, Liping Ye, Biao Wang
Venue: Proceedings of the 2008 International Conference on BioMedical Engineering and Informatics - Volume 02 (2008)

Aim: To investigate whether caspase-8 can regulate caspase-3 and Rb expression respectively in Fas- and Actinomycin D (AD)-mediated apoptosis pathway in Human Hepatoma Bel-7402 Cells. Methods: Bel-7402 cells were treated with Fas-AD in the presence/absence of caspase-8 inhibitor Ac-IEFD-cho. Cell apoptosis was evaluated by flow cytometry (FCM). The expressions of caspase-3 and RB were determined by Western Blot and RT-PCR, respectively. Results: Compared with the control group and the fas group, the cell apoptosis rate and the expressions of activated caspase-3 and RB increased significantly after Bel-7402 cells were treated with Fas-AD. However, when Bel-7402 cells were treated with Fas-AD in the presence of the inhibitors of Ac-IEFD-cho, the cell apoptosis rate and the expressions of activated caspase-3 and RB decreased significantly. Conclusion: caspase-8 can regulate caspase-3 and Rb respectively in Fas- and AD-mediated apoptosis pathway in Bel-7402 cells.
A method for a mechanical characterisation of human gluteal tissue
Authors: C. Then, J. Menger, G. Benderoth, M. Alizadeh, T. J. Vogl, F. Hübner, G. Silber
Venue: Technology and Health Care (2007)

The most common complication associated with immobilization is pressure sores caused by sustained localized tissue strain and stress. Computational simulations have provided insight into tissue stress-strain distribution, subject to loading conditions. In the simulation process, adequate soft tissue material parameters are indispensable. An in vivo procedure to characterise material parameters of human gluteal skin/fat and muscle tissue has been developed. It employs a magnetic resonance imaging (MRI) device together with an MRI compatible loading device. Using the derived data as constraints in an iterative optimization process the inverse finite element (FE) method was applied. FE-models were built and the material constants describing skin/fat and muscle tissue were parameterized and optimized. Separate parameter sets for human gluteal skin/fat and muscle were established. The long-term shear modulus for human gluteal skin/fat was G$_{&infin;, S/F}$= 1182 Pa and for muscle G$_{&infin;, M}$ = 1025 Pa. The Ogden form for slightly compressible materials was chosen to define passive human gluteal soft tissue material behaviour. To verify the approach, the human skin/fat-muscle tissue compound was simulated using the derived material parameter sets and the simulation result was compared to empirical values. A correlation factor of R$^{2}$ = 0.997 was achieved.
Active behavioral fingerprinting of wireless devices
Authors: Sergey Bratus, Cory Cornelius, David Kotz, Daniel Peebles
Venue: Proceedings of the first ACM conference on Wireless network security (2008)

We propose a simple active method for discovering facts about the chipset, the firmware or the driver of an 802.11 wireless device by observing its responses (or lack thereof) to a series of crafted non-standard or malformed 802.11 frames. We demonstrate that such responses can differ significantly enough to distinguish between a number of popular chipsets and drivers. We expect to significantly expand the number of recognized device types through community contributions of signature data for the proposed open fingerprinting framework. Our method complements known fingerprinting approaches, and can be used to interrogate and spot devices that may be spoofing their MAC addresses in order to conceal their true architecture from other stations, such as a fake AP seeking to engage clients in complex protocol frame exchange (e.g., in order to exploit a driver vulnerability). In particular, it can be used to distinguish rogue APs from legitimate APs before association.
Involutive method for computing Gröbner bases over $$ \mathbb{F}_2 $$
Authors: V. P. Gerdt, M. V. Zinin
Venue: Programming and Computing Software (2008)

In this paper, an involutive algorithm for computation of Gröbner bases for polynomial ideals in a ring of polynomials in many variables over the finite field $$ \mathbb{F}_2 $$ with the values of variables belonging of $$ \mathbb{F}_2 $$ is considered. The algorithm uses Janet division and is specialized for a graded reverse lexicographical order of monomials. We compare efficiency of this algorithm and its implementation in C++ with that of the Buchberger algorithm, as well as with the algorithms of computation of Gröbner bases that are built in the computer algebra systems Singular and CoCoA and in the FGb library for Maple. For the sake of comparison, we took widely used examples of computation of Gröbner bases over ¿ and adapted them for $$ \mathbb{F}_2 $$ . Polynomial systems over $$ \mathbb{F}_2 $$ with the values of variables in $$ \mathbb{F}_2 $$ are of interest, in particular, for modeling quantum computation and a number of cryptanalysis problems.
Cryptographic Properties of Second-Order Memory Elementary Cellular Automata
Authors: Ascension Hernández Encinas, Angel Martín del Rey, J. L. Pérez Iglesias, Gerardo Rodríguez Sánchez, Araceli Queiruga Dios
Venue: Proceedings of the 2008 Third International Conference on Availability, Reliability and Security (2008)

In this work the use of second-order memory elementary cellular automata in the design of symmetric-key block ciphers is studied. Specifically, their cryptographic properties are analyzed taking into account four tests that check the sensitivity to initial conditions and the differential cryptanalysis. It is shown that the second-order memory cellular automata (MECA for short) with better cryptographic properties are those defined by the rule numbers 75, 86, 89, 149, 166, 173 and 229.
Alien presence in the home: the design of Tableau Machine
Authors: Mario Romero, Zachary Pousman, Michael Mateas
Venue: Personal and Ubiquitous Computing (2008)

We introduce a design strategy, alien presence, which combines work in human---computer interaction, artificial intelligence, and media art to create enchanting experiences involving reflection over and contemplation of daily activities. An alien presence actively interprets and characterizes daily activity and reflects it back via generative, ambient displays that avoid simple one-to-one mappings between sensed data and output. We describe the alien presence design strategy for achieving enchantment, and report on Tableau Machine, a concrete example of an alien presence design for domestic spaces. We report on an encouraging formative evaluation indicating that Tableau Machine does indeed support reflection and actively engages users in the co-construction of meaning around the display.
Effective spam filtering: A single-class learning and ensemble approach
Authors: Chih-Ping Wei, Hsueh-Ching Chen, Tsang-Hsiang Cheng
Venue: Decision Support Systems (2008)

The annoyance of spam emails increasingly plagues both individuals and organizations. In response, most of prior research investigates spam filtering as a classical text categorization task, in which training examples must include both spam (positive examples) and legitimate (negative examples) emails. However, in many spam filtering scenarios, obtaining legitimate emails for training purpose can be more difficult than collecting spam and unclassified emails. Hence, it is more appropriate to construct a classification model for spam filtering that uses positive training examples (i.e., spam) and unlabeled instances only and does not require legitimate emails as negative training examples. Several single-class learning techniques, such as PNB and PEBL, have been proposed in the literature. However, they incur inherent limitations with regard to spam filtering. In this study, we propose and develop an ensemble approach, referred to as E2, to address these limitations. Specifically, we follow the two-stage framework of PEBL but extend each stage with an ensemble strategy. The empirical evaluation results from two spam filtering corpora suggest that our proposed E2 technique generally outperforms benchmark techniques (i.e., PNB and PEBL) and exhibits more stable performance than its counterparts.
Software support for building end-user programming environments in the automation domain
Authors: Herbert Prähofer, Dominik Hurnaus, Roland Schatz, Christian Wirth, Hanspeter Mössenbö k
Venue: Proceedings of the 4th international workshop on End-user software engineering (2008)

Projects in the automation domain often require that end users, who are the machine operators, have means to change control software to make adaptations and optimizations for the machining task at hand. Although they usually do not have any software development expertise, they intervene in safety-critical software systems. This results in high demands on end-user programming environments with respect to supporting, guiding, and supervising end users. In this paper we present a software framework which is intended to serve as a basis for developing end-user programming environments. The main parts of this framework are a domain-specific language for programming automation solutions at a high level of abstraction, different visual editors for supporting end users, an approach for checking program changes against formal specifications, a variability modeling approach for representing high-level user decisions, and an approach for setting up customized end-user environments from models.
Bridging the gap between morphic visual programming and smalltalk code
Authors: Noury Bouraqadi, Serge Stinckwich
Venue: Proceedings of the 2007 international conference on Dynamic languages: in conjunction with the 15th International Smalltalk Joint Conference 2007 (2007)

In this paper, we claim that both prototype-based visual programming and traditional Smalltalk class-based programming are required for developing applications with a GUI. We introduce Easy Morphic GUI (EMG), a framework that connects Morphic and EToys visual manipulation and scripting facilities with the usual Smalltalk development environment tools. The Squeak platform is used here as a playfield for our experiments. A step-by-step tutorial is used to illustrate the main aspects of the EMG framework. We also introduce two reuse operators: embed and clone in order to build new GUIs out of existing ones. embed inserts a GUI into another one, while clone makes the destination look the same as the original. Static and dynamic version of these operators are also investigated.
Modeling User Interfaces to Workflow Information Systems
Authors: Josefina Guerrero, Jean Vanderdonckt, Juan M. Gonzalez, Marco Winckler
Venue: Proceedings of the Fourth International Conference on Autonomic and Autonomous Systems (2008)

This paper addresses the need for designing user interfaces (UIs) to workflow information systems by adopting a model-centric approach. We introduce a conceptual workflow model to determine system functionalities of workflow. The model is exploited in order to systematically derive UIs to access these functionalities. The workflow model is recursively decomposed into processes which are in turn decomposed into tasks. Each task gives rise to a task model whose structure, ordering, and connection with the domain model allows the automated generation of their corresponding UIs, using a transformational approach. Each UI is specified in a User Interface Description Language, workflow, process, and task models are specified in the same specification language. The language is exploited to generate multiple source codes, depending on how their corresponding tasks are structured in the process model; and by a workflow execution engine to produce running workflow systems. A real-world case is outlined to exemplify the process.
Synthetic ellipsoidal wavefront imaging
Authors: Nandita Bhattacharjee, Andrew P. Paplinski
Venue: Proceedings of the 5th WSEAS International Conference on Circuits, Systems, Electronics, Control & Signal Processing (2006)

This paper describes a novel method of ultrasonic imaging based on the concept of a synthetic ellipsoidal wave front. It could be a most significant paradigm shift in ultrasonic imaging, speeding up the imaging process significantly. The spatial information inscribed by reflections from objects in the imaging region can be detected by an ultrasonic sensor or an array of sensors, and directly visualised using an algorithm based on the concept of a synthetic ellipsoidal wavefront. This paper presents the theory behind this concept using a linear array of ultrasonic sensors as well as a visualisation method used to capture and display the image using Field II [1] and MATLAB [2] simulations.
A Simple Low-Noise Subharmonically Injection-Locked Oscillator for Low-Cost RF Synthesizers and Front-Ends for Wireless Communications
Authors: Munir Ahmad Tarar, Zhizhang (David) Chen
Venue: Proceedings of the Communication Networks and Services Research Conference (2008)

In this paper, a simple 2.095GHz subharmonically injection-locked oscillator (ILO) using HBT transistor is presented. A subharmonic signal of 1.0475GHz frequency is injected to the oscillator to lock the oscillation at 2.095GHz. With the capacitive feedback impedance at the transistor emitter, and inductive load and the resonator at the transistor base, a low phase noise of –92 dBc/Hz at the 10KHz offset was obtained. Simulation results show that the phase noise of the oscillation output is only about 0.5dB higher than that of the injected signal. Such a low noise feature has presented potentials in developing RF synthesizer and front-ends for low-cost wireless and mobile communication transceivers.