一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Application of factor analysis for service R&D classification: A case study on the Korean ICT industry

This paper introduces an application of factor analysis for classifying and illuminating the nature of distinct dimensions of service research and development (R&D) which are difficult to examine due to the unique characteristics of services. The application is based upon the concept that firms would benefit from clarifying R&D and R&D-like activities to assist their R&D decision. Using principal component analysis (PCA) of factor analysis, a number of possibly correlated R&D activities is transformed into a smaller number of uncorrelated activities called principal components, and firms can identify the patterns of service R&D, express their similarities and differences, and develop its R&D portfolio. A case example for service R&D in the Korean ICT industry is provided.     

Characterizing non-monotonic fuzzy relations

 This paper is on &-T-monotonic Fuzzy Relations and on the particular case of &-Monotonic Fuzzy Relations (in the crisp case &-Weakly-monotonic and &-Strongly-monotonic Relations, respectively). It goes a little further of the previous work the authors did on this kind of Fuzzy and Crisp Relations by proving a Characterization Theorem of &-T-monotonicity for Reflexive Fuzzy Relations that contains all the former results. This theorem is not only particularized to the crisp case but it is shown that then only crisp Logical States are needed. Of course, also Non-&-T-monotonic Fuzzy Relations and Non-Weak-&-monotonic crisp Relations became characterized. Received: 20 May 1997/Accepted: 18 June 1997     

Dynamic R&D with strategic behavior

We consider a two-player infinite-horizon discrete-time game where the players invest in R&D in order to develop a new technology to reduce production costs. We compute firms’ equilibrium R&D investment strategy as a function of the level of knowledge in the economy. The latter changes endogenously with firms’ decisions to invest in R&D. We show that firms do not invest in R&D if the knowledge level is too low, while both firms do R&D when the level of knowledge is high. However, there is an intermediate knowledge region where there are two pure Nash equilibria: either no firm does R&D or both firms do R&D. Multiplicity of equilibria leads generally to a challenging selection problem. In our context, it is shown that the case of both firms investing in R&D can be Pareto-dominating for both players. It follows that government actions which allow an economy to increase the level of knowledge above a threshold may be welfare enhancing.     

Development and application of intelligent system modeling and simulation platform

As a common support of M&S (Modeling and Simulation) applications, M&S language and platform can effectively improve M&S capability for complex objects and systems. This paper proposes an Intelligent system Modeling and Simulation Language (IMSL) which integrates artificial intelligence theory and M&S technology to describe intelligent model structures, behaviors, facts, knowledge, and rules. Meanwhile, an M&S platform is implemented to provide a basic support for M&S of intelligent systems, featured as its convenience, efficiency and problem solving ability. Our research work has been focused on M&S methods and language specification of intelligence systems, intelligent simulation resource libraries and integrated development environment. As an application instance, M&S of a C3I (Command, Control, Communication and Information) system is conducted to evaluate the performance of IMSL and the IMSL platform. And the simulation result proves that IMSL can work effectively in solving practical problems.     

Integrating the IS functions after mergers and acquisitions: Analyzing business-IT alignment

This exploratory positivist case study uses multiple case design to examine the impacts of strategic alignment during the mergers and acquisitions (M&A) process and the implications for strategic formulation of successful M&A outcomes. According to alignment theory, for a firm to achieve M&A integration success, the business-IS strategies should be aligned during the M&A execution. However, our results indicate that successful, non-aligned M&A integrations can also occur, strongly supporting the emergent perspective of strategy formation in M&A integration as a valuable addition to the a priori formal planning view of strategy formation.     

Enabling firm performance through business intelligence and analytics: A dynamic capabilities perspective

This study draws on the sense-seize-transform view of dynamic capabilities as the theoretical lens for examining the role of BI&A in organizations. It views BI&A as the sensing and seizing components of dynamic capabilities that contribute to firm performance by enabling business process change. Findings confirm a positive relationship between BI&A and performance, mediated by business process change capabilities. This study answers the call for a theoretically grounded examination of the relationship between BI&A and firm performance by highlighting the significance of the BI&A seizing capabilities, and the importance of business process change in translating BI&A output into improved performance.     

客户标签在95598业务中的应用

基于电力客户标签体系在供电企业的研究成果,介绍了电力客户标签体系在95598业务中的若干典型应用:一是建立了基于“客户画像+满意度测评”的闭环管理模式,有力支撑了客户服务工作的常态化开展;二是构建了基于“话务引导”和“服务策略推送”的话务服务模式,实现了客户精准洞察,帮助95598客服人员迅速识别客户特征,缩短反应时间,针对性的为客户提供差异化、精细化服务。客户标签在供电企业的实际应用为以客户为中心的现代电力营销体系起到了中流砥柱的作用。     

Layout simulation for keyboards

Abstract

The oldest element on any personal computer is the keyboard: its design (the spatial position of the keys in relation to each other) and its layout (the assignment of letters, numerals, and other signs to keys). The are exactly the same as on the first typewriters of over 100 years ago or are they? The layout has been the topic of improvement for more than 70 years but no real change has materialized. We contribute to the efforts of layout reformers in Pollatschek et al. (1986).

In this paper, we introduce a simple simulation tool for evaluating layout, while in an accompanying communication we advise on a cheap and effective way to convert any given layout to any desired one.     

The occurrence of musculoskeletal alterations in worker populations not exposed to repetitive tasks of the upper limbs

A total of 749 workers (males: 139 aged between 15 and 35 years, and 171 aged > 35 years; females: 176 aged between 15 and 35 years, and 263 aged >35 years) performing tasks not at risk for work-related musculoskeletal disorders of the upper limbs (WMSDs) underwent a clinical examination using a standardized method. The ‘anamnestic cases’ were defined on the basis of pain or paraesthesia present for at least 1 week during the previous 12 months, or appearing at least once a month, and not subsequent to acute trauma. The anamnestic cases among the males amounted to 4.4% (age 15–35 years) and 12.3% (age> 35 years); among the females, 4.6% (age 15–35 years) and 14.2% (age> 35 years). Of the 1498 limbs examined, the prevalent diseases reported were: suspect narrow chest syndrome: 0.3% among the males > 35 years, 0.6% among the females aged 15 35 years, 1% among the females > 35 years; scapulo-humeral periarthritis: 0.3% among the males aged > 35 years, 0.3% among the females aged 15–35 years, 1.3% among the females aged > 35 years; lateral epicondylitis: 0.3% among the males aged > 35 years, 0.2% among the females aged > 35 years; trapeziometacarpal arthrosis: 0.8% among the females aged > 35 years; wrist-hand tendinitis: 0.9% among the males aged > 35 years, 0.9% among the females aged 15–35 years; carpal tunnel syndrome: 2.5% among the females aged > 35 years. No disorders were detected outside the age ranges indicated. Several workers reported more than one disorder. The number of workers with at least one WMSD was: males 0% in the 15–35 years age range, 3.5% in the > 35 years age range; females 2.3% in the 15–35 years age range, 7.2% in the > 35 years age range; 3.9% of the total sample population. The prevalences were on average quite low, particularly among the older workers, hence the authors recommend that even minimal prevalences detected in particular work environments should not be underestimated.     

SLIGA Based underwater weapon safety and arming system

 The Naval Surface Warfare Center, Indian Head Division (NSWCIHD) is applying microelectromechanical system (MEMS) technology to underwater weapon Safety and Arming (S&A) system development. MEMS technology provides an opportunity to develop a miniaturized S&A system that is more sophisticated with improved safety and reliability at a lower cost compared to current systems. An S&A system prevents premature initiation of the weapon while reliably ensuring initiation at the appropriate time. An S&A system uses multiple sensors and devices. In comparison with other weapon S&A systems, a critical aspect of underwater weapon S&A systems is the mechanical interlock system utilizing actuators and mechanical sensors. This paper describes the design, development and fabrication of S&A SLIGA device prototypes and of a SLIGA based S&A system. NSWCIHD worked with members of the HI-MEMS Alliance during design, development and fabrication. Advancements achieved by the HI-MEMS Alliance and SLIGA S&A design issues are discussed. Received: 25 August 1997/Accepted: 10 September 1997     

Developing an research and development (R&D) process improvement system to simulate the performance of R&D activities

Because of a shorter R&D cycle time and the increasing complexity of technology development, efficient decision support systems for R&D activities are necessary to facilitate R&D processes. In particular, small and medium enterprises (SMEs) require efficiency of R&D projects due to a lack of R&D budgets and resources. Therefore, this paper aims to develop a system which can assess current levels of R&D processes of companies and improve problematic processes. To this end, the proposed system applies a standard R&D process to evaluate the R&D level of companies, including four types of database and three modules: performance level analysis, comparison analysis, and performance simulation analysis. First, the module of performance level analysis aims to draw strong and weak R&D processes of companies, using three factors: importance, performance goal and current performance on each process. The second module provides the function of comparison analysis that compares the performance level of a company with that of others. Finally, the performance simulation analysis investigates influences of critical processes on R&D outcomes and predicts how much the processes can enhance technical, economic and process outcomes. In particular, a case study is presented to illustrate the application of the proposed system to an IT company. This system can help managers enhance their R&D performance by presenting necessary improvements on critical processes.     

Analysing human factors and non-technical skills in offshore drilling operations using FRAM (functional resonance analysis method)

Cognition, Technology & Work - Workplaces in the oil and gas (O&G) industry have evolved to become part of the modern complex sociotechnical system that characterises onshore and...     

The influence of individual and contextual work factors on workers' compliance with health and safety routines

This study investigated the relationships between workers’ compliance with health and safety (H&S) routines and instructions adopted in the company (dependent variable) and psychological demands, decision authority, social support, management support, unionization and H&S management system (independent variables). A cross-sectional questionnaire study was performed among 1051 workers and the managers of 102 small- and medium-sized motor vehicle repair garages. Multilevel modeling was performed to account for the hierarchical structure of the data. At the worker level, high compliance with H&S routines correlated significantly with both social support and H&S-related management support. At the garage level, mean management support and a well-developed H&S management system correlated significantly with high workers’ compliance. Changing both the individual and contextual factors in the work environment may thus increase workers’ participation in H&S activities.     

General Branch and Bound,and its relation to A1 and AO1

Branch and Bound (B&B) is a problem-solving technique which is widely used for various problems encountered in operations research and combinatorial mathematics. Various heuristic search procedures used in artificial intelligence (AI) are considered to be related to B&B procedures. However, in the absence of any generally accepted terminology for B&B procedures, there have been widely differing opinions regarding the relationships between these procedures and B&B. This paper presents a formulation of B&B general enough to include previous formulations as special cases, and shows how two well-known AI search procedures (A1 and AO1) are special cases of this general formulation.     

Monitoring the 1988 severe drought in Indiana,U.S.A. using AVHRR data

Data from the Advanced Very High Resolution Radiometer (AVHRR) on board the NOAA–10 satellite was collected over Indiana for the 1987 and 1988 growing seasons. A Normalized Difference (NDVI) transformation was applied to the data. Over 45 fields representing 8 soil associations were sampled to assess the effects of the 1988 drought on the development of natural and cultivated vegetation. The results show the effect of the lack of available moisture to the plants and its effect on the response measured by the AVHRR sensor.     

When IT capabilities are not scale-free in merger and acquisition integrations: how do capital markets react to IT capability asymmetries between acquirer and target?

In mergers and acquisitions (M&A), a primary objective of acquirer is to integrate IT resources of the target with its own. IT M&A integration is assumed to create synergies, which in turn increase shareholder wealth by making the value of the merged firm greater than the sum of the standalone values of the two firms. In this study, we challenge this assumption and argue that IT M&A integration does not always lead to greater value creation. Prior research on IT M&A integrations indicates that IT resources are often not scale-free in M&A: that is, they do not transfer easily and costlessly from an acquirer to its target or vice versa. In fact, IT M&A integration can destroy value rather than create it when IT resources are not scale-free. We theorize about the contingencies under which IT M&A integration can create value for shareholders of acquirers. We test our hypotheses in a sample of 549 M&A transactions between 1998 and 2007. We find that, on average, capital markets react negatively with M&A announcements of acquirers whose IT capabilities are superior relative to those of the targets. The superiority of the acquirer’s IT capabilities signals that the acquirer is likely to rip and replace IT resources of the target. This IT M&A integration approach increases risks of disruption to target’s operations and revenue growth. Capital markets take such risks into account and reduce the stock price of the acquirer. One contingency that reduces the negative reactions of capital markets is industry relatedness of target. In a same-industry acquisition, an acquirer and its target have similar operating models, competitive dynamics, and regulatory context. Thus, ripping and replacing weaker IT resources of the target with superior IT resources of the acquirer creates expectations of more efficient operation, engenders positive stock price reactions, and increases shareholder wealth. Another contingency that reduces the negative reactions of capital markets is the acquirer’s track record in profitable growth. A profitably growing acquirer that has superior IT capabilities increases the confidence of capital markets that it can minimize potential disruption risks of IT integration, continue its profitable growth pattern with newly acquired target, engender positive stock price reactions, and create shareholder wealth. These findings indicate that IT M&A integration does not always lead to greater value creation in M&A. The study makes a contribution by identifying the contingencies under which IT M&A integration creates wealth for acquirer’s shareholders.     

Content adaptive deblocking of artifacts for highly compressed images

Multimedia Tools and Applications - In this paper, a spatial technique for the reduction of blocking artifacts existing within the highly compressed reconstructed images,...     

基于R&D溢出的集中研发联盟合作行为

研究了在联盟合作R&D中R&D溢出、R&D溢出的抑制能力以及创新能力对联盟成员的R&D投资策略的影响, 确定了联盟获得最大期望投入的最优分配方式. 研究表明: 1) R&D溢出和创新能力对联盟成员增加R&D投入有正效应; 企业抑制R&D溢出的力量对R&D投入有负效应, 但影响力很弱. 2) 对于创新能力强的联盟, 平均分配为最优分配方式; 对于创新能力弱的联盟, 市场规模低时选择按投入比例分配方式, 市场规模高时选择平均分配方式.