ppxscal/embedding_network huggingface dataset:
Performance Analysis of IEEE 802.11b Under Multiple IEEE 802.15.4 Interferences
Authors: Dae Gil Yoon, Soo Young Shin, Jae Hee Park, Hong Seong Park, Wook Hyun Kwon
Venue: Proceedings of the 5th international conference on Wired/Wireless Internet Communications (2007)

This paper presents analysis of the performance on the IEEE 802.11b in the presence of multiple IEEE 802.15.4 interferences. To analyze the performance, packet error rate (PER) and throughput are used as performance metrics. The PER is computed by the bit error rate (BER), the collision time and the number of IEEE 802.15.4 interferers in the presence of in-band of the IEEE 802.11b. The throughput of the IEEE 802.11b under multiple IEEE 802.15.4 interferences is obtained from the total IEEE 802.11b packet length received during a specified time. Analytic results of the performance of IEEE 802.11b under multiple IEEE 802.15.4 interferences are verified by simulation results. These results can support coexistence criteria for the IEEE 802.11b and the IEEE 802.15.4.
On the Definition of Service Granularity and Its Architectural Impact
Authors: Raf Haesen, Monique Snoeck, Wilfried Lemahieu, Stephan Poelmans
Venue: Proceedings of the 20th international conference on Advanced Information Systems Engineering (2008)

Service granularity generally refers to the size of a service. The fact that services should be large-sized or coarse-grained is often postulated as a fundamental design principle of service oriented architecture (SOA). However, multiple meanings are put on the term granularity and the impact of granularity on architectural qualities is not always clear. In order to structure the discussion, we propose a classification of service granularity types that reflects three different interpretations. Firstly, functionality granularity refers to how much functionality is offered by a service. Secondly, data granularity reflects the amount of data that is exchanged with a service. Finally, the business value granularity of a service indicates to which extent the service provides added business value. For each of these types, we discuss the impact of granularity on a set of architectural concerns, such as performance, reusability and flexibility. We illustrate each granularity type with small examples and we present some preliminary ideas of how controlling granularity may assist in alleviating some architectural issues as we encounter them in a large-sized bank-insurance company that is currently migrating to SOA.
X-Web: A Data Model for Managing Personal Contents Based on User Experiences
Authors: Taketoshi Ushiama, Toyohide Watanabe
Venue: Proceedings of the 12th international conference on Knowledge-Based Intelligent Information and Engineering Systems, Part II (2008)

In this paper, we propose the X-Web (eXperience-Web) data model, which supports users to manage various types of personal contents in a unified manner based on their contextual information. The X-Web data model consists of three kinds of modeling units: contents, experiences, and persons, and the context of personal contents are expressed as experiences. Units are classified into containers, and a ranking function is defined between two containers. Combinations of ranking functions can represent various requirements for searching and recommending personal contents.
Towards a network: oriented system for cooperative music composition
Authors: Margounakis Dimitrios, Politis Dionysios, Linardis Panagiotis
Venue: Proceedings of the 7th WSEAS International Conference on Artificial intelligence, knowledge engineering and data bases (2008)

Advances in music technology and software allow composers and music producers to achieve incredible auditory results using their personal computers. This project proposes an interactive network application for cooperative composition for musicians and composers. The proposed Internet Mixer comprises an Internet application for mixing down tracks with the participation of many users that comprise an online music community. The tracks are evaluated by the members of the community and their rankings indicate whether they should be produced and distributed via the web. Digital signatures are used for each track, while music interchange, mixing and online evaluation are some of the functions of the system. A tree-based structure handles the different versions of each song, which are stored in a database.
Plenary lecture IV: some approaches concerning autonomous mobile robot control
Authors: Sergiu Cononovici
Venue: Proceedings of the 9th WSEAS International Conference on International Conference on Automation and Information (2008)

Vehicles, which operate more or less autonomously, are included in the large family of robots. The autonomy is tightly related with the use of sensors for environment perception. The mobile robots are actors on which there can be implemented strategies that belong to applied artificial intelligence. A little wheeled robot equipped with infrared sensors is our actor. On it there are applied some strategies to obtain the reactive behaviour for unforeseeable obstacles avoidance. The reactive function is a mapping on the perceptual states set with values in the action set. A rule base perception action is obtained. The building of this is tackled using a genetic algorithm as well as by reinforcement learning. To the mobile robot equipped with this ability the navigation skill is attached so that it is able to navigate from a start point to a goal one by dead reckoning by odometry. A control system based on two microcontrollers running in parallel and changing messages between each other is the hardware on which the control strategies are applied. Some results obtained by simulation of the developed strategies are presented.
A Case of 3D Educational Game Design and Implementation
Authors: Huimin Shi, Yi Li, Haining You
Venue: Proceedings of the 3rd international conference on Technologies for E-Learning and Digital Entertainment (2008)

Games are increasingly used for educational purpose. Player can obtain experiences through playing game. Game is a safe and efficient way for security education. This paper introduces a game design: Escapre from Fire. a design procedure and system structure are outlined. Related programming technologies are discussed.
PCA Based Feature Selection Applied to the Analysis of the International Variation in Diet
Authors: Faraz Bishehsari, Mahboobeh Mahdavinia, Reza Malekzadeh, Renato Mariani-Costantini, Gennaro Miele, Francesco Napolitano, Giancarlo Raiconi, Roberto Tagliaferri, Fabio Verginelli
Venue: Proceedings of the 7th international workshop on Fuzzy Logic and Applications: Applications of Fuzzy Sets Theory (2007)

In this work we describe a clustering and feature selection technique applied to the analysis of international dietary profiles. An asymmetric entropy-based measure for assessing the similarity between two clusterizations, also taking into account subclustering relationships, is at the core of the technique, together with PCA. Then, a feature analysis of the dataset with respect to its hierarchical clusterization is performed. This way, most significant features of the dataset are found and a deep understanding of the data distribution is made possible.
Locally Computable Structures
Authors: Russell G. Miller
Venue: Proceedings of the 3rd conference on Computability in Europe: Computation and Logic in the Real World (2007)

We introduce the notion of a locally computable structure, a natural way of generalizing the notions of computable model theory to uncountable structures ${\mathcal{S}}$ by presenting the finitely generated substructures of $\S$ effectively. Our discussion emphasizes definitions and examples, but does prove two significant results. First, our notion of m-extensional local computability of ${\mathcal{S}}$ ensures that the Σ n -theory of ${\mathcal{S}}$ will be Σ n for all n ≤ m + 1. Second, our notion of perfect local computability is equivalent (for countable structures) to the classic definition of computable presentability.
Generating the translation equivalent of agentive nouns using two-level morphology
Authors: Arbana Kadriu, Lejla Abazi
Venue: Proceedings of the 7th WSEAS International Conference on Artificial intelligence, knowledge engineering and data bases (2008)

This paper is about generation of translation equivalent of agentive nouns with the use of automatically learned two-level phonological rules. The system is implemented using the PC-KIMMO environment. The basis for the research presented in this paper are two lexicons that contain a list of agentive nouns in Macedonian and English including their components (noun, verb, adjective, pronoun) and their semantic attributes.
Keynote address
Authors: Howard T. Engstrom
Venue: Papers and discussions presented at the Dec. 8-10, 1953, eastern joint AIEE-IRE computer conference: information processing systems---reliability and requirements (1953)

I speak to you this morning as Chairman of the Technical Program Committee for the AIEE-IRE-ACM Joint Computer Conference. At the first of these conferences, in December 1951, at Philadelphia, a program was devoted to a description of existing electronic computers or those under development. The second conference, at New York, in December 1952, was devoted to a review of input-and-output equipment necessary for efficient usage of computer systems. 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
Tabulating the Heavens: Computing the Nautical Almanac in 18th-Century England
Authors: Mary Croarken
Venue: IEEE Annals of the History of Computing (2003)

The question of how to accurately find longitude at sea was hotly debated in the mid-1700s. This article describes the lunar distance method, promoted by Nevil Maskelyne, the British Astronomer Royal. In 1767, Maskelyne began publishing the Nautical Almanac, which contained astronomical tables prepared by a small network of human computers during the period 1765-1809. This article will describe the computing system Maskelyne created to compute the necessary tables.
Explicit Non-adaptive Combinatorial Group Testing Schemes
Authors: Ely Porat, Amir Rothschild
Venue: Proceedings of the 35th international colloquium on Automata, Languages and Programming, Part I (2008)

Group testing is a long studied problem in combinatorics: A small set of r ill people should be identified out of the whole (n people) by using only queries (tests) of the form "Does set X contain an ill human?". In this paper we provide an explicit construction of a testing scheme which is better (smaller) than any known explicit construction. This scheme has ${\it \Theta}\left({\min[r^2 \ln n,n]}\right)$ tests which is as many as the best non-explicit schemes have. In our construction we use a fact that may have a value by its own right: Linear error-correction codes with parameters [m,k,¿m] q meeting the Gilbert-Varshamov bound may be constructed quite efficiently, in ${\it \Theta}\left({q^km}\right)$ time.
A New Semantic Representation for Short Texts
Authors: M. J. Martín-Bautista, S. Martínez-Folgoso, M. A. Vila
Venue: Proceedings of the 10th international conference on Data Warehousing and Knowledge Discovery (2008)

The aim of this work is to present a new semantic structure of knowledge representation for textual fields. The purpose of this structure is to allow us to handle this kind of textual fields as the rest of the fields in the database in processes such as OLAP, datawarehousing, semantic querying, etc. The architecture of the system is described in the work as well as a detailed description of the mathematical formalism of the structure. The mechanism to carry out the transformation is given together with an experimental example with a medical database.
Enhancing Animated Agents in an Instrumented Poker Game
Authors: Marc Schröder, Patrick Gebhard, Marcela Charfuelan, Christoph Endres, Michael Kipp, Sathish Pammi, Martin Rumpler, Oytun Türk
Venue: Proceedings of the 31st annual German conference on Advances in Artificial Intelligence (2008)

In this paper we present an interactive poker game in which one human user plays against two animated agents using RFID-tagged poker cards. The game is used as a showcase to illustrate how current AI technologies can be used for providing new features to computer games. A powerful and easy-to-use multimodal dialog authoring tool is used for modeling game content and interaction. The poker characters rely on a sophisticated model of affect and a state-of-the art speech synthesizer. Through the combination of these methods, the characters show a consistent expressive behavior that enhances the naturalness of interaction in the game.
Technology that Persuades the Elderly
Authors: Laura Sorri, Eeva Leinonen
Venue: Proceedings of the 3rd international conference on Persuasive Technology (2008)

This paper discusses what makes technology persuasive and what kind of technology is considered interesting among the elderly. Also, factors contributing to the choice between appliances are presented. For acquisition of information several qualitative methods were used. Among the factors making technology interesting were the support of safety, independency, memory and health, and bringing easiness and comfort to everyday life without forgetting expressing oneself and social issues. The elderly had several opinions on the usability. The study revealed some factors which were influencing the interest despite the qualities of an appliance.
A 'companion' ECA with planning and activity modelling
Authors: Marc Cavazza, Cameron Smith, Daniel Charlton, Li Zhang, Markku Turunen, Jaakko Hakulinen
Venue: Proceedings of the 7th international joint conference on Autonomous agents and multiagent systems - Volume 3 (2008)

In this paper, we describe the development of an Embodied Conversational Agent (ECA) implementing the concept of a companion, i.e. an agent supporting the persistent representation of user activities and dialogue-based communication with the user. This first experiment implements a Health and Fitness companion aimed at promoting a healthier lifestyle. The system operates by generating an 'ideal' plan of daily activities from background knowledge and dialogue interaction with the user. This plan then becomes an activity model, which will later be instantiated by reports from the user and analysed by the agent from the perspective of initial objectives. At various stages of the day, the plan can still be adapted through further dialogue. The agent is embodied using a wireless rabbit (Nabaztag&trade;) device situated in the user's home. After describing the planning component, based on Hierarchical Task Networks (HTN) and the spoken dialogue system, we present a working example from the system illustrating its behaviour through various phases of user activity generation, updating and re-planning.
Vehicle dynamic stability control and driving crisis analysis using fuzzy logic
Authors: Alireza Baharizadeh, Mahmood Fathy, Mohsen Davoudi
Venue: Proceedings of the 9th WSEAS International Conference on Fuzzy Systems (2008)

In this paper, we explain the process of designing fuzzy based analyzers which can be installed in a vehicle. These analyzers use some kinds of sensors to determine the crisis of driving situation. This system helps a driver to be aware of the danger of the obstacles, other vehicles on the road, fatigue and environment noises. An alarm massage concentrates the driver attention while s/he is doing something that may distract the attention. A different fuzzy controller using electronically controller of the Brakes/ Steering/ Suspension systems controls the vehicle to avoid the obstacles and also maintain the kinetic balance of the vehicle by mean of dynamic stability analysis. An advantage of this controller is that it doesn't interfere with the driver's habit in vehicle control and it resumes functioning only in critical moments. Using various actuators and sensors, we introduce a new approach to detect driving and stability crisis. This makes the proposed fuzzy analyzer a novel one.
Internet and elections: Changing political strategies and citizen tactics in Hungary
Authors: Endre Dányi, Anna Galácz
Venue: Information Polity (2005)

The socio-political transformation induced in Central and Eastern Europe by the political turmoil of 1989-1990 happened in concordance with a communications revolution, characterized by the ubiquity of new media in many realms of life. Consequently, the use of information and communication technologies in political campaigns forced both institutions and citizens to rethink their roles and strategies within the political system. Our analysis of the electoral web sphere of the 2004 European Parliament election in Hungary, based on Internet & Elections data and semi-structured interviews, indicates that while strategic uses of the internet appear to reinforce existing power-relations on the web, tactical uses of new media undermine the 'politics as usual' thesis.
Verifying Erlang/OTP Components in μCRL
Authors: Qiang Guo
Venue: Proceedings of the 27th IFIP WG 6.1 international conference on Formal Techniques for Networked and Distributed Systems (2007)

Erlang is a concurrent functional programming language with explicit support for real-time and fault-tolerant distributed systems. Generic components encapsulated as design patterns are provided by the Open Telecom Platform (OTP) library. Although Erlang has many high-level features, verification is still non-trivial. One (existing) approach is to perform an abstraction of an Erlang program into the process algebra μCRL, upon which standard verification tools can be applied. In this paper we extend this work and propose a model that supports the translation of an OTP finite state machine design pattern into a μCRL specification. Then a standard toolset such as CADP can be applied in order to check properties that should hold for the system under development. Two small examples are presented, which experimentally show how the proposed model assists in model checking Erlang OTP components in μCRL.
The Use of Voronoi Tessellations in Processing Soil Survey Results
Authors: D. Arnold, W. Milne
Venue: IEEE Computer Graphics and Applications (1984)

Manual plotting and analysis of soil surveys is tedious and error prone. Use of Voronoi tessellations could reduce manual processing and automate the process from the point data.
User Technology Readiness Measurement in Fingerprint Adoption at Higher Education Institution
Authors: Raudzatul Fathiyah Mohd Said, Shuzlina Abdul Rahman, Sofianita Mutalib, Marina Yusoff, Azlinah Mohamed
Venue: Proceedings of the international conference on Computational Science and Its Applications, Part II (2008)

Due to difficulty in monitoring the attendance of members in the higher education institution (HEI), the HEI management has recognized the need to conduct a study on the adoption of fingerprint system. The study identified the appropriate indexing model and developed a questionnaire that suits for the environment. The higher education institution selected for this study is International Islamic University Malaysia (IIUM). The target groups were selected across a sample of the organisation's members. The returned questionnaires were analyzed using a standard statistical tool. Reliability and normality testing were deployed to ensure that the data is reliable and normal for further testing. Spearman's correlation and Kruskal Wallis were used to find the relation between elements of innovativeness, optimism, discomfort and insecurity. The findings have revealed that the innovativeness and optimism have a positive relation with the users' readiness. Meanwhile, discomfort and insecurity gave a negative relation to the faculty members'. This indicates that the faculty member is aware of the technology and optimist with the implementation of the technology in their organization. However, they still feel insecure and discomfort with the justification and impact of the implementation.
Hierarchical classification using a frequency-based weighting and simple visual features
Authors: Xin Zhou, Adrien Depeursinge, Henning Müller
Venue: Pattern Recognition Letters (2008)

This article describes the use of a frequency-based weighting scheme using low level visual features developed for image retrieval to perform a hierarchical classification of medical images. The techniques are based on a classical tf/idf (term frequency, inverse document frequency) weighting scheme of the GIFT (GNU Image Finding Tool), and perform classification based on kNN (k-Nearest Neighbors) and voting-based approaches. The features used by the GIFT are very simple giving a global description of the images and local information on fixed regions both for colors and textures. We reused a similar technique as in previous years of ImageCLEF to have a baseline for the retrieval performance over the three years of the medical image annotation task. This allows showing the clear increase in quality of participating research systems over the years. Subsequently, we optimized the retrieval results based on the simple technology used by varying the feature space, the classification method (varying number of neighbors, various voting schemes) and by adding new information such as aspect ratio, which has shown to work well in the past. The results show that the techniques we use have several problems that could not be fully solved through the applied optimizations. Still, optimizations improved results enormously from an error value of 228 to below 150. As a baseline to show the progress of techniques over the years it also works well. Aspect ratio shows to be an important factor to improve results. Performing classification on an axis level performs better than using the entire hierarchy code or not taking hierarchy into account at all. To further improve results, the use of more suitable visual features such as patch histograms or salient point features seems necessary. Small distortions of images of the same class have to be taken into account for very good results. Still, without using any learning technique and high level visual features, the approach performs reasonably well.
Peer-to-peer collaboration over XML documents
Authors: Claudia-Lavinia Ignat, Gérald Oster
Venue: Proceedings of the 5th international conference on Cooperative Design, Visualization, and Engineering (2008)

Existing solutions for the collaboration over XML documents are limited to a centralised architecture. In this paper we propose an approach for peer-to-peer collaboration over XML documents where users can work off-line on their document replica and synchronise in an ad-hoc manner with other users. Our algorithm for maintaining consistency over XML documents recursively applies the tombstone operational transformation approach over the document levels.
Dynamic Virtual Environments Using Really Simple Syndication
Authors: Andrew Dunk, Ronan Jamieson, Vassil Alexandrov
Venue: Proceedings of the 8th international conference on Computational Science, Part III (2008)

This paper investigates the use of really simple syndication (RSS) to dynamically change virtual environments. The case study presented here uses meteorological data downloaded from the Internet in the form of an RSS feed, this data is used to simulate current weather patterns in a virtual environment. The downloaded data is aggregated and interpreted in conjunction with a configuration file, used to associate relevant weather information to the rendering engine. The engine is able to animate a wide range of basic weather patterns. Virtual reality is a way of immersing a user into a different environment, the amount of immersion the user experiences is important. Collaborative virtual reality will benefit from this work by gaining a simple way to incorporate up-to-date RSS feed data into any environment scenario. Instead of simulating weather conditions in training scenarios, actual weather conditions can be incorporated, improving the scenario and immersion.