ppxscal/embedding_network huggingface dataset:
Virtual Classroom and Communicability: Empathy and Interaction for All
Authors: Francisco V. Cipolla Ficarra
Venue: Proceedings of the 13th International Conference on Human-Computer Interaction. Part IV: Interacting in Various Application Domains (2009)

We present the main empathy components in the design of interactive systems aimed at classroom and E-learning education. These components have a bidirectional relationship with communicability and usability. Each of them depicts an intersection of communication, semiotics, interface design, software engineering, usability engineering and human-computer interaction. Additionally, we present a table which can be used as a communicative quality guide. Its content is the result of 20 years of design and heuristic assessment of on-line and off-line interactive systems, mainly for Americans and European users.
Database Kernel for Image Retrieval
Authors: Cosmin Stoica Spahiu, Cristian Marian Mihaescu, Liana Stanescu, Dan Burdescu, Marius Brezovan
Venue: Proceedings of the 2009 First International Conference on Advances in Multimedia (2009)

This article presents a software tool that implements a dedicated multimedia database management server for managing alphanumerical and multimedia data collections from medical domain. An element of originality for this database management system (DBMS) is that along with classical operations for databases, it includes a series of algorithms used for extracting visual information from images (texture and color characteristics). The color histogram with 166 colors in HSV space represents the image color information. A vector with 12 values represents the texture information obtained by applying Gabor filters. The extracted data are stored in the database in a special data type called IMAGE, with a specific structure that can be used for visual queries. To increase the image retrieval speed, there are used some clustering algorithms.
Adapting Instruction
Authors: Wallace H. Wulfeck,  Ii
Venue: Proceedings of the 5th International Conference on Foundations of Augmented Cognition. Neuroergonomics and Operational Neuroscience: Held as Part of HCI International 2009 (2009)

It is often claimed that adapting instruction to an individual's progress, personal characteristics or preferences will somehow increase learning, and there have been literally thousands of studies over at least the past 100 years exploring this idea. This presentation will review various approaches to adapting instruction, such as changing the rate, difficulty, sequence or structure, instructional strategy or instructional media on the basis of learner progress, prior knowledge, aptitudes or preferences, under various forms of instructor, learner, program, or opponent control. This paper gives an organizing framework, describes some of the theoretical underpinnings for particular adaptations, and describes experimental and practical criteria for evaluating claims of efficacy and efficiency of instructional adaptations. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
A General Learning Method for Automatic Title Extraction from HTML Pages
Authors: Sahar Changuel, Nicolas Labroche, Bernadette Bouchon-Meunier
Venue: Proceedings of the 6th International Conference on Machine Learning and Data Mining in Pattern Recognition (2009)

This paper addresses the problem of automatically learning the title metadata from HTML documents. The objective is to help indexing Web resources that are poorly annotated. Other works proposed similar objectives, but they considered only titles in text format. In this paper we propose a general learning schema that allows learning textual titles based on style information and image format titles based on image properties.We construct features from automatically annotated pages harvested from the Web; this paper details the corpus creation method as well as the information extraction techniques.Based on these features, learning algorithms, such as Decision Trees and Random Forest algorithms are applied achieving good results despite the heterogeneity of our corpus, we also show that combining both methods can induce better performance.
Efficient Language-Independent Retrieval of Printed Documents without OCR
Authors: Walid Magdy, Kareem Darwish, Motaz El-Saban
Venue: Proceedings of the 16th International Symposium on String Processing and Information Retrieval (2009)

Recent book digitization initiatives have facilitated the access and search of millions of books. Although OCR remains essential for retrieving printed documents, OCR engines remain limited in the languages they handle and are generally expensive to build. This paper proposes a language independent approach that enables search through printed documents in a way that combines image-based matching with conventional IR techniques without using OCR. While image-based matching can be effective in finding similar words, complementing it with efficient retrieval techniques allows for sub-word matching, term weighting, and document ranking. The basic idea is that similar connected elements in printed documents are clustered and represented with ID's, which are then used to generate equivalent textual representations. The resultant representations are indexed using an IR engine and searched using the equivalent ID's of the connected elements in queries. Though, the main benefit of the proposed approach lies in languages for which no OCR exists, the technique was tested on English and Arabic to ascertain the relative effectiveness of the approach. The approach achieves more than 61% relative effectiveness compared to using OCR for both languages. While the reported numbers are lower than that of OCR-based approaches, the proposed method is fully automated, does not require any supervised training, and allows documents to be searchable within a few hours.
Computer games and traditional CS courses
Authors: Kelvin Sung
Venue: Communications of the ACM (2009)

Integrating computer games into existing CS courses may help attract students to the field, but there are guidelines to be considered.
Study of Informative Gene Selection for Gene Expression Profiles
Authors: Quanzhong Liu, Yang Zhang, Yong Wang, Zhengguo Hu
Venue: Proceedings of the 2009 WRI Global Congress on Intelligent Systems - Volume 03 (2009)

In the research community of gene expression microarray data analysis, selecting a small number of informative genes from thousands of genes is a hot research problem for accurate classification of diseases. In this paper, we present our gene selection algorithm SIGWeight. SIGWeight expands sigmoid kernel into its Maclaurin series, and calculate the weight of each feature(gene) from the classification hyperplane which is constructed by SVM with SIGMOID kernel, and then sort the features according to the weight of features. A subset of features is selected from top of the ranking list. We apply four widely used classifiers on the obtained datasets with only the selected genes to evaluate effectiveness of SIGWeight. Experiment results on Leukemia and DLBCL datasets show that SIGWeight is very encouraging, Furthermore, compared with information gain(IG), SIGWeight select less number of genes, At the same time, the genes selected led to the highest accuracy.
Fluent Aphasia
Authors: Susan Edwards
Venue:  (2009)

Fluent aphasia is a language disorder that follows brain damage, severely impairing the patient's ability to communicate. Internationally renowned Susan Edwards provides a detailed description of fluent aphasia by drawing on a range of research data and comparing the condition with other types of aphasia as well as with normal language. Extensive examples of aphasic speech are given, and the progress of one fluent aphasic speaker is discussed in detail. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
A meshless FPM model for solving nonlinear material problems with proportional loading based on deformation theory
Authors: L. Pérez Pozo, F. Perazzo, A. Angulo
Venue: Advances in Engineering Software (2009)

In this work a methodology of meshless finite points method for the analysis of nonlinear material problems with proportional loading based on deformation theory is presented. In finite points method the approximation around each point is obtained by using weighted least square techniques. The discrete system of equation is constructed by means of a point collocation procedure. The non-dependence on a mesh or integration procedures is an important aspect which transforms the finite point method in a truly meshless technique. Hencky's total deformation theory and an elastic approach is used on the determination of stress-strain fields. This approach introduces the concept of effective material properties which are considered as spatial field variables and to be functions of equilibrium stress state and material properties. The present results are in good agreement with those obtained by nonlinear finite element method and previous work in this meshless context. Nevertheless the present methodology is based on a strong formulation, keeping the meshless characteristics of FPM.
A Design Flow and Evaluation Framework for DPA-Resistant Instruction Set Extensions
Authors: Francesco Regazzoni, Alessandro Cevrero, François-Xavier Standaert, Stephane Badel, Theo Kluter, Philip Brisk, Yusuf Leblebici, Paolo Ienne
Venue: Proceedings of the 11th International Workshop on Cryptographic Hardware and Embedded Systems (2009)

Power-based side channel attacks are a significant security risk, especially for embedded applications. To improve the security of such devices, protected logic styles have been proposed as an alternative to CMOS. However, they should only be used sparingly, since their area and power consumption are both significantly larger than for CMOS. We propose to augment a processor, realized in CMOS, with custom instruction set extensions, designed with security and performance as the primary objectives, that are realized in a protected logic. We have developed a design flow based on standard CAD tools that can automatically synthesize and place-and-route such hybrid designs. The flow is integrated into a simulation and evaluation environment to quantify the security achieved on a sound basis. Using MCML logic as a case study, we have explored different partitions of the PRESENT block cipher between protected and unprotected logic. This experiment illustrates the tradeoff between the type and amount of application-level functionality implemented in protected logic and the level of security achieved by the design. Our design approach and evaluation tools are generic and could be used to partition any algorithm using any protected logic style.
Lishe System
Authors: Zongquan Ma, Yue Qi, Ling Zhao
Venue: Proceedings of the 4th International Conference on E-Learning and Games: Learning by Playing. Game-based Education System Design and Development (2009)

Lishe is the earliest archery competition in ancient China. According to the records of history documents, we elaborately model the Lishe scenes, characters and costumes, reproducing the whole process of Lishe. The system implements a core function module, adds in the Virtual Human technology, and provides multiple HCI (Human-Computer Interaction). It has already been operated as a part of Virtual Olympic Museum.
A Wavelet Coding Method Available in Hardware Design
Authors: Yu Wei, Yanling Hao, Yushen Li
Venue: Proceedings of the 2009 International Conference on Measuring Technology and Mechatronics Automation - Volume 03 (2009)

A wavelet coding method available in hardware design is discussed in this passage. So far, wavelet coding has used in many fields, but a lot of arithmetic occupy much memory, which make speed of hardware running slower. Through the method of this passage, the memory can be reduced in the arithmetic in the process coding and coding efficiency can be increasingly improved. The method establishes memory optimization structure according to the analysis of zero-tree wavelet coder and set partitioned embedded block. Makes use of advantages of search bases on maximal absolute value bit-length to establishes block bit-length chart. Blocks independent code and uses scan output for one time merely. Experimental results have shown that: with the comparison of other arithmetic, the arithmetic of this message increases the coding speed effectively, shortens the time of program execution, meanwhile, it can keep the high quality of power signal-to-noise ratio(PSNR).It has great significance in hardware design for wavelet coding.
Anormaly Intrusion Detection Based on SOM
Authors: Min Li, Wang Dongliang
Venue: Proceedings of the 2009 WASE International Conference on Information Engineering - Volume 01 (2009)

In this paper, we first introduce the principle of SOM algorithm, and then study the real-time intrusion detection system, finding it is not very good in the real-time intrusion detection system. Regarding this problem, this paper presents a real-time intrusion detection model based on SOM algorithm, and takes the system call process as studying object to illustrate the performance of this model. Finally, we compared the detection ability of SOM algorithm with other intrusion detection models by simulation experiment, and the experiment shows that intrusion detection of anomalous based SOM not only meets requirements, but also has a strong nature of real-time, and the nature of real-time of the anomaly intrusion detection model based on SOM is 100 times higher than that of the Forrest and Lee’s method.
Pollution source identification using a coupled diffusion model with a genetic algorithm
Authors: Anis Khlaifi, Anda Ionescu, Yves Candau
Venue: Mathematics and Computers in Simulation (2009)

A new approach for the source quantification has been developed on the basis of real air pollutant hourly concentrations of SO"2, measured by three monitoring stations, during 9h, around a group of three industrial sources. This inverse problem has been solved by coupling a direct model of diffusion (Pasquill's Gaussian model) with a genetic algorithm, to search solutions leading to a minimum error between model outputs and measurements. The inversion performance depends on the relationship between the wind field and the configuration sources-receptors: good results are obtained when the monitoring stations are downwind from the sources, and in these cases, the order of magnitude of emissions is retrieved, sometimes with less than 10% error for at least two sources; there are some configurations (wind direction versus source and receptor locations) which do not permit to restore emissions. The latter situations reveal the need to conceive a specific network of sensors, taking into account the source locations and the most frequent weather patterns.
MobiVMM: a virtual machine monitor for mobile phones
Authors: Seehwan Yoo, Yunxin Liu, Cheol-Ho Hong, Chuck Yoo, Yongguang Zhang
Venue: Proceedings of the First Workshop on Virtualization in Mobile Computing (2008)

Mobile phones have evolved into complex systems as they have more and more new applications built-in. As a result, they are less reliable and less secure than before. Virtual Machine Monitors (VMM) or hypervisors have been introduced to help the reliability and security of mobile phones but the existing research does not completely address three issues critical to mobile phones: real-time support, resource limitation, and power efficiency. In this paper we propose building a new VMM called MobiVMM for mobile phones to deal with these issues. MobiVMM enables real-time support using priority based scheduling and a pseudo-polling mechanism. Resource and power efficiency is achieved through light-weight design and implementation, highly customized guest operating systems, and a virtual hardware abstraction layer. We present our design considerations and report some preliminary experimental results based on the OMAP 2430 development platform.
Evaluation of Different Multithreaded and Multicore Processor Configurations for SoPC
Authors: Sascha Uhrig
Venue: Proceedings of the 9th International Workshop on Embedded Computer Systems: Architectures, Modeling, and Simulation (2009)

Multicore processors get more and more popular, even in embedded systems. Unfortunately, these types of processors require a special kind of programming technique to offer their full performance, i.e. they require a high thread-level parallelism. In this paper we evaluate the performance of different configurations of the same processor core within an SoPC: a single threaded single core, a multithreaded single core, a single threaded multicore, and a multithreaded multicore. The used core is the jamuth core, a multithreaded Java processor able to execute Java bytecode directly in hardware. The advantage of Java in a multicore environment is that it brings the threading concept for free, i.e. the software developers are familiar with the threading concept. Our evaluations show that the cores within a multicore processor should be at least two-threaded to bridge the higher memory delays caused by the contention at the shared bus.
Real-Time Rendering of Skin Changes Caused by Emotions
Authors: Yvonne Jung, Christine Weber, Jens Keil, Tobias Franke
Venue: Proceedings of the 9th International Conference on Intelligent Virtual Agents (2009)

For simulating communicative behavior, realistic appearance and plausible behavior is important. Postures and mimics also reflect emotional behavior. There exist various models of emotion, like the psycho-evolutionary theory developed by Plutchik [1], or Ekman's FACS. But most models are only suited for muscular expressions. A more unattended field however, also in graphics, is the change in color. Also, other physiological symptoms like crying are left unconsidered.
Exploiting Parallelism to Accelerate Keyword Search on Deep-Web Sources
Authors: Tantan Liu, Fan Wang, Gagan Agrawal
Venue: Proceedings of the 6th International Workshop on Data Integration in the Life Sciences (2009)

Increasingly, biological data is being shared over the deep web. Many biological queries can only be answered by successively searching a number of distinct web-sites. This paper introduces a system that exploits parallelization for accelerating search over multiple deep web data sources. An interactive, two-stage multi-threading system is developed to achieve task parallelization, thread parallelization, and pipelined parallelization. We show the effectiveness of our system by considering a number of queries involving SNP datasets. We show that most of the queries can be accelerated significantly by exploiting these three forms of parallelism.
Sphinx: A Compact and Provably Secure Mix Format
Authors: George Danezis, Ian Goldberg
Venue: Proceedings of the 2009 30th IEEE Symposium on Security and Privacy (2009)

Sphinx is a cryptographic message format used to relay anonymized messages within a mix network. It is more compact than any comparable scheme, and supports a full set of security features: indistinguishable replies, hiding the path length and relay position, as well as providing unlinkability for each leg of the message's journey over the network. We prove the full cryptographic security of Sphinx in the random oracle model, and we describe how it can be used as an efficient drop-in replacement in deployed remailer systems.
One for All or One for One? The Influence of Cultural Dimensions in Virtual Agents' Behaviour
Authors: Samuel Mascarenhas, João Dias, Rui Prada, Ana Paiva
Venue: Proceedings of the 9th International Conference on Intelligent Virtual Agents (2009)

With the increase in the development of autonomous agents, there is a bigger demand on their capability of interacting with other agents and users in ways that are natural and inspired by how humans interact. However, cultural aspects have been largely neglected so far, even though they are a crucial aspect of human societies. Our goal is to create an architecture able to model cultural groups of agents with perceivable distinct behaviour. In particular, this paper focus on how to use two cultural dimensions proposed by Hofstede in order to influence the agent's goal selection and appraisal processes. Using our cultural architecture, we created two cultural groups of agents and asked users to visualise them performing a short emergent story. We then asked them to describe the two groups visualised. Results confirmed that users did perceived differences in the groups, and those differences were congruent with the cultural parametrisation used.
Traffic-Aware Channel Assignment in Wireless Sensor Networks
Authors: Yafeng Wu, Matthew Keally, Gang Zhou, Weizhen Mao
Venue: Proceedings of the 4th International Conference on Wireless Algorithms, Systems, and Applications (2009)

Existing frequency assignment efforts in wireless sensor network research focus on balancing available physical frequencies among neighboring nodes, without paying attention to the fact that different nodes have different traffic volumes. Ignoring the different traffic requirements in different nodes in frequency assignment design leads to poor MAC performance. Therefore, in this paper, we are motivated to propose traffic-aware frequency assignment, which considers nodes' traffic volumes when making frequency decisions. We incorporate our traffic-aware frequency assignment design into an existing multi-channel MAC, and compare the performance with two conventional frequency assignment schemes. Our performance evaluation demonstrates that traffic-aware channel assignment can greatly improve multi-channel MAC performance. Our traffic-aware assignment scheme greatly enhances the packet delivery ratio and system throughput, while reducing channel access delay and energy consumption.
Coal Mine Enterprise Merger and Acquisitions Risk Empirical Research Based on DEA
Authors: Xiang Chen, Weihua Cai
Venue: Proceedings of the 2009 Asia-Pacific Conference on Information Processing - Volume 01 (2009)

Presently, China’s coal enterprises are under the merger and acquisition (M&A) phrase environment. Enterprises M&A are frequent. As coal enterprises M&As have bigger uncertainty and risk, facing all kinds, varying degree objectively exist risks, coal enterprises decision-makers deeply feel unable, and urgently need related theoritcal guidance and help. The paper from three aspects built coal enterprises M&A risk impact factors index system, and collected 13 enterprises related data during 2004-2008, The paper analyzed these data by data envelopment analysis (DEA). The result was in line with the actual situation, which demonstrated the method’s effectiveness in coal enterprises M&A risk analysis. Finally, taked Yanzhou Coal to buy Jisan Coal as example, the paper pointed out the path of M&A risk reduction.