Linear independence of internal representations in multilayerperceptrons

Identifies the linear independence of the internal representation of the multilayer perceptron as an essential property for exact learning. The sigmoidal hidden unit activation function has the ability to produce linearly independent outputs. As a result, the minimum number of hidden units for a set of specified input is the number of patterns less the rank of the input patterns. In addition, the basis of many training algorithms is shown to inherently increase the number of linearly independent vectors in the internal representations, thereby increasing the likelihood of exact learning.     

Compact representations for efficient storage of semantic sensor data

Journal of Intelligent Information Systems - Nowadays, there is a rapid increase in the number of sensor data generated by a wide variety of sensors and devices. Data semantics facilitate...     

Integral minimum variance-like control for pooled non-linear representations with application to an aircraft system

This paper presents an integral minimum variance-like controller design based upon a constant coefficient pooled non-linear autoregressive moving average with exogenous excitation (CCP-NARMAX) representation. The use of pooling techniques significantly enhances the NARMAX representation's ability to accurately describe systems performing under various operating conditions such as aircraft systems, chemical processes, industrial systems and so on. The controller design introduces suitable modifications to account for the characteristics of the CCP-NARMAX representation. The control strategy is subsequently applied to a non-linear aircraft system in order to obtain regulation of the pitch rate around a predetermined value. Comparisons with a conventional PID control design are also made under various operating conditions, including disturbances due to external input and turbulence.     

Proof system representations of degrees of disjoint NP-pairs

Let D be a set of many-one degrees of disjoint NP-pairs. We define a proof system representation of D to be a set of propositional proof systems P such that each degree in D contains the canonical NP-pair of a corresponding proof system in P and the degree structure of D is reflected by the simulation order among the corresponding proof systems in P. We also define a nesting representation of D to be a set of NP-pairs S such that each degree in D contains a representative NP-pair in S and the degree structure of D is reflected by the inclusion relations among their representative NP-pairs in S. We show that proof system and nesting representations both exist for D if the lower span of each degree in D overlaps with D on a finite set only. In particular, a linear chain of many-one degrees of NP-pairs has both a proof system representation and a nesting representation. This extends a result by Glaßer et al. (2009). We also show that in general D has a proof system representation if it has a nesting representation where all representative NP-pairs share the same set as their first components.     

Compact disc standards: an introductory overview

The success of the compact disc (CD) as a storage medium for digital audio has, over the last ten years, resulted in a number of initiatives to use the CD for other applications as well, e.g., as read-only memory for computers, as a storage medium for audio-visual material for multimedia applications, and as a storage medium for photographs. Each of these applications poses additional requirements on how the corresponding information is stored and retrieved, resulting in a range of different CD standards. The functional specifications of these standards are each given a specific color for ease of reference: the Red Book for CD-DA, the Yellow Book for CD-ROM, the Green Book for CD-I, etc. This paper aims at giving an overview of the various CD standards by explaining what is specified in each of the colored books and by indicating how they relate to one another.     

Learning social representations with deep autoencoder for recommender system

World Wide Web - With the development of online social media, it attracts increasingly attentions to utilize social information for recommender systems. Based on the intuition that users are...     

基于CPCI总线的分布式系统设计

为解决大规模系统中数据处理任务重,业务种类多的难点,文章给出一种基于CompactPCI(CPCI)的分布式系统设计,实现了系统板卡间的分工协作和跨总线远程内存访问。本文提出了基于“抽屉机制”的报文存储机制和地址信息维护策略,实现了准确高效的分布式跨总线通信。     

Computer communication as an aid to independence for older adults

Abstract

Computer and communication technologies offer the potential of improving die quality of life for older people by providing them with links to information and services outside of the home. This study examined die feasibility of older people using an electronic text message system to perform routine communication tasks. In addition information was gathered to identify design parameters which facilitate the interactions of older people with such computer based systems. A specialized and simplified ‘communication computer’ was placed in the homes of 36 older women, aged 50–95 years. The system was provided with: a simple text-editor, basic electronic mail functions and access to news/ weather, movie reviews, and health information. Both performance data and user preference data were collected. Results indicated that the participants liked using the system, were able to use it with minimal difficulty, and that it provided a valuable means for social interaction and mental stimulation. The findings suggest that computer-based systems can be a valuable support tool for older adults if they are easy to use, and provide applications that are useful for them.     

Computer communication as an aid to independence for older adults

Computer and communication technologies offer the potential of improving die quality of life for older people by providing them with links to information and services outside of the home. This study examined die feasibility of older people using an electronic text message system to perform routine communication tasks. In addition information was gathered to identify design parameters which facilitate the interactions of older people with such computer based systems. A specialized and simplified 'communication computer' was placed in the homes of 36 older women, aged 50-95 years. The system was provided with: a simple text-editor, basic electronic mail functions and access to news/ weather, movie reviews, and health information. Both performance data and user preference data were collected. Results indicated that the participants liked using the system, were able to use it with minimal difficulty, and that it provided a valuable means for social interaction and mental stimulation. The findings suggest that computer-based systems can be a valuable support tool for older adults if they are easy to use, and provide applications that are useful for them.     

Querying medical databases in an environment offering logical data independence

Medical information systems are becoming popular. Furthermore, their use is expected to be expanded in future. In order to easily extract information from the underlying databases, easy to use man-machine interfaces are required. This paper concerns the doctor interface of the ARPIA medical information system based on a relational database management system. The whole system is currently used inside the Outpatient Pediatric Clinic of the Catholic University of Rome, Italy. The interface provides logical data independence towards the underlying relational database. The paper contains some background about this kind of interfaces, and also, it sketches the software architecture of the implemented prototype.     

BendCad: a design system for concurrent multiple representations of parts

Concurrency in product design and manufacturing process planning is supported in a recently developed sheet metal design system that incorporates preliminary process design at the detail product design stage. This new design with process features approach represents the evolving part form to the designer in multiple process domains and at multiple stages of a sequential process. Each set of part form representations defines the conceptualized process that transforms it from one to the other. At this modeling level, processes are reversible so that design activity can take place in any of the domains and be transferred to the others. We have fully implemented this concept in a sheet metal design/manufacturing system in which preliminary process design occurs concurrently with product design and the normal representational ambiguities of wireframe and flat panel models are eliminated.     

Conditional independence of multivariate binary data with an application in caries research

For the analysis of caries experience in seven-year old children the association between the presence or absence of caries experience among deciduous molars within each child is explored. Some of the high associations have an etiological basis (e.g., between symmetrically opponent molars), while others (diagonally opponent molars) are assumed to be the result of the transitivity of association and to disappear once conditioned on the caries experience status of the other deciduous molars, covariates and random effects. However, using discrete models for multivariate binary data, conditioning does not remove the diagonal association. When the association is explored on a latent scale, e.g., by a multivariate probit model, then conditional independence can be concluded. This contrast is confirmed when using other models on the (observed) binary scale and on the latent scale. Depending on the point of view, the differences in conditional independence might be seen as a consequence of different types of measurements or as a consequence of different models. An example shows that the results and conclusions can be markedly different with important consequences on model building. The explanation for this result is exemplified mathematically and illustrated using dental data from the Signal-Tandmobiel^® study.     

Algorithm 35 an algorithm for non-smoothing contour representations of two-dimensional arrays

The FORTRAN code calculates, plots and labels approximate contour linesz(x, y)=c for data that are given as a rectangular arrayz _ik =z(x _i ,y _k ).     

基于主机的全民医疗保障系统的设计

为了让全民都享受到社会保障所带来的实惠,我们需要有一个能容纳下全社会都能参与社会保障的超大规模数据量的平台。而这个平台非IBMz900大型主机服务器系统、DB2大型关系数据库和CICS交易中间件莫属。作为整个系统处理数据的最底层,我们通过位于z900大型主机中的DB2大型关系数据库,存储所涉及到的绝大多数数据;我们也通过z900大型主机中存储程序对涉及多个表的数据量较大的程序进行数据处理;当然,如果是数据量小的,但凡发生的小交易,如参保用户医疗门诊或买药刷卡交易,我们使用z900大型主机中CICS交易中间件是再好不过的事了。     

Positioning quadric surfaces in all active stereo imaging system

The location of surfaces using stereo imaging techniques is an important area of research for robot guidance and machine inspection applications, The underlying geometry of finite focal length stereo pinhole cameras is investigated. This is the model used in both active and passive stereo imaging systems. It is shown that the points of intersecting views from the pinhole models result in conic sections. This information is used to locate quadric surfaces in the inspection space. When the projected fringe pattern is encoded to a quadric surface, the underlying intersection mapping can be used to estimate the position of the surface. Subsets of most smooth objects can be fitted to a conic section. For inspection of smooth surfaces with projection moire techniques, this fringe interpretation method would allow for correct placement of the object