Learning Discovery Techniques in Enterprise Decision Support Environments K. Rama Devi V. Navya Sree G. Padmaja Asst.profesor, CSE Dept PSCMRCET, Vijayawada A.P, India rama.podilla@gmail.com Asst.profesor, CSE Dept PSCMRCET, Vijayawada A.P, India navya.sree@gmail.com Assoc.profesor, CSE Dept PSCMRCET, Vijayawada A.P, India padmajagrandhe@gmail.com ABSTRACT It is getting to be expanding vital to give chiefs at all authoritative levels with vital data and information for powerful choice making. Leaders at higher authoritative levels need, notwithstanding backing in choice making, help with investigating examples and patterns in choices taken by chiefs at lower hierarchical levels. In this paper, we introduce expansions to the part of information disclosure procedures in choice backing for finding choice models and finding examples and patterns in choice models. We propose a methodology for understanding this expanded part utilizing model bazaars and model stockrooms and a structure for building endeavor choice bolster situations supporting the proposed methodology. This methodology and system can lead towards building up to the improvement of authoritative memory with the choice rolling out examples and improvements in those examples over drawn out stretches of time. Keywords: Hierarchical Learning, Data dissemination, Knowledge Discovery, Data mining, Decision Support System. 1. Introduction Scientists in the field of choice emotionally supportive networks (DSS) address people, bunches or hierarchical choice backing at different authoritative levels. Reliant choice issues (e.g., consecutive choices) that are obliged to be understood by more than one individual or one gathering in some request are tended to under hierarchical DSS. Kim et al. [12] present an examination of these three sorts of DSS regarding framework objective, leader, choice degree and innovation utilized. Associations are turning out to be progressively conveyed with accentuation on decentralized choice making. This pattern requires venture DSS for successful choice making. Kivijarvi [13] expounds the qualities of authoritative DSS with difficulties in outline, improvement and usage of, for example, frameworks when contrasted with one-capacity or one-client DSS. Ba et al. [1], in their paper on undertaking choice bolster, call attention to the learning administration standards important to accomplish intra-hierarchical learning bases as (i) the utilization of corporate information to infer and make more elevated amount data and information, (ii) combination of authoritative data to bolster all offices and end-clients, and (iii) procurement of devices to change scattered information into significant business data. Accordingly, it is turning out to be progressively essential to give chiefs at all authoritative levels with fundamental data and learning for viable choice making. Supervisors in numerous associations, especially at lower authoritative levels, much of the time experience comparative choice issues. Choices taken by diverse directors for a given issue shift in view of variables, for example, choice making style, subjectivity, and accessibility of nearby data. Business choice issues, for example, evaluating choices amid deals advancements and item/administration offering in light of client profile to this classification. These sorts of choice issues are genuinely repetitive, subjective and typically understood autonomously by numerous chiefs utilizing generally accessible data. Malone [16] refers to a case of decentralized choice making after this pattern where Wal-Mart store administrators utilizing worldwide data settle on decentralized choices for space designation, requesting stock and some estimating choices. Comprehension and examination of choice examples and patterns can be performed utilizing either past choice occurrences or models speaking to choice settling on procedures behind those choices. Information disclosure procedures (KDT) are generally utilized as a major aspect of the previous methodology for finding fascinating examples in information speaking to choices occurrences. The last approach obliges utilization of either manual or computerized systems to manufacture choice models to speak to the choice making procedures utilized. Leverage of this methodology is that the examination of examples and patterns can be performed at a more theoretical level utilizing a little number of choice models when contrasted with substantial quantities of choice occurrences. Choice displaying strategies utilized as a part of building DSS can be utilized for this demonstrating reason. In any case, evoking and speaking to subjective choice settling on procedures from chiefs is troublesome and it to a great extent relies on the enunciation aptitudes of the leaders in expounding the fundamental choice making procedure. These troubles will be aggravated in decentralized choice making circumstances, for example, those depicted above in light of the fact that the elicitation process should be rehashed for every chief. Abusing advancements in the field of learning disclosure in databases for this reason can be a powerful different option for overcome a significant number of these challenges in certain choice making situations, for example, subjective grouping and positioning choice issues. Past choice occurrences speaking to different information properties and the choice characteristics can be utilized with the end goal of finding tenets from the choice cases. Standards found from an arrangement of order choices settled on by a leader can be considered as an enlightening representation of the characterization critical thinking learning of the chief. Moreover, utilizing fitting and suitable KDT it is conceivable to dig choice models for fascinating examples and patterns, which can be spoken to in type of more elevated amount reflections of choice models. With a specific end goal to utilize KDT for such non-customary applications we have to consider the contrasts between the two sorts of utilizations. Numerous KDT are customarily used to bolster the choice making process in troublesome errands [22]. Uses of these procedures have been conveyed in areas, for example, advertising, account, keeping money, assembling and information transfers [5]. Grupe and Owrang [9] report some exceptional yield uses of KDT over an extensive variety of areas. By and large, the part of these strategies in supporting choice making procedures is fairly restricted to issue plan and to a lesser degree to model definition. The recent part can be useful in building choice models utilizing choice cases of number of leaders. In spite of the fact that, Hill and Remus [10] distinguished the part of KDT in model detailing, little research relating to this part has been accounted for, as such. In segment 2, we examine the conventional part of KDT in choice backing. In segment 3, we propose augmentations to this part to bolster disclosure of choice models and revelation of choice making examples. We additionally distinguish issues that must be tended to for the proposed expansions. In area 4, a structure for creating endeavor choice bolster situations to bolster the proposed methodology is introduced. In area 5, we talk about the ramifications of the proposed methodology and system to innovative work in the fields of choice backing and learning revelation in databases. 2. Part of Knowledge Discovery Techniques in Decision Support Figure 1 shows a run of the mill choice bolster environment comprising of operational databases, information bazaars, information stockroom and different DSS. Corporate information distribution centers are ordinarily assembled utilizing information from the operational databases; and information stores are produced utilizing the information comparing to particular spaces from information stockrooms. KDT are regularly utilized on these segments to discover fascinating examples in information. Information bazaars likewise catch choice cases (e.g., evaluating choices for different things made by chiefs at distinctive stores, item/administration offers made by client administrations agents to different clients) speaking to choices taken by diverse leaders at diverse times. Such information in information stores can be utilized for assessing the viability of operational level choices, assessment of the execution, recognizable proof of basic issues, positive and negative results of specific sorts of choices, and so forth. It is conceivable to break down decentralized choices made utilizing commonplace usefulness gave by KDT. Consequences of such an examination can be utilized to give criticism, to share best practices, and to fabricate or upgrade DSS to bolster operational level choices. Comparative examination can be performed at a key level by incorporating choice cases from distinctive areas. Be that as it may, such a methodology can be less proficient and less powerful because of expansive quantities of choice examples and the use of lowlevel develops (e.g. information instead of models or tenets). Utilizations of computerized systems, for example, machine learning, neural systems, design acknowledgment, measurable strategies, casebased thinking and other half breed methods in model detailing are generally reported (e.g., [3, 6, 17, 18, 19]). In any case, a hefty portion of these methodologies expect that choice occurrences, i.e., information relating to past choices, are accessible for this reason and that the procedure utilized creates models that are conceivable to average leaders. KDT can, therefore, assume a dynamic part in planning models that speak to the choice making procedures of one or more chiefs. Numerous data frameworks catch such information which can be utilized for finding choice models that guide information variables to yield choice variables. 3. Augmenting the Role of Knowledge Discovery Techniques in Decision Support In this paper, as depicted prior, we deliver choice backing to chiefs at different authoritative levels in understanding and breaking down decentralized choices. The inspiration driving this begins from the requirement for investigation of choices and choice making examples notwithstanding the immediate backing in choice making. Since this type of bolster gives abnormal state data and information coordinated from distinctive areas, it can help in improving the adequacy of choice making at all hierarchical levels. Wal-Mart store directors, for instance, settle on decentralized choices, for example, space designation, stock requesting and setting costs of some 500-600 value delicate things relying upon costs set by nearby contenders [16]. Leaders at the strategic level oblige bolster in breaking down such decentralized choices to give criticism to chiefs at the operational level. Correspondingly, chiefs at the key level oblige bolster in examining choices crosswise over distinctive areas (e.g., in the middle of estimating and deals) at the strategic level to give criticism to lower hierarchical levels. The three levels of hierarchical choice making speaks to a typical method for picturing choice making at various levels. Be that as it may, the methodology exhibited in this paper, as we should find in the accompanying segments, can be free of this chain of command. Augmentations to the part of KDT in choice backing can be made as for backing in finding choice models and in finding fascinating examples and patterns in choice models. The primary expansion is the use of KDT in choice displaying. Case in point, Bolloju [4] delineates the viability of such a methodology utilizing a neuro-fluffy classifier. The second augmentation can be considered as a type of model mining, practically equivalent to information mining, where KDT are connected on the current choice models to discover examples in choice models and to help chiefs in dissecting choices taken by various leaders. We distinguish and talk about specific issues that must be tended to for understanding these two augmentations in light of certain major contrasts between the conventional and expanded parts of KDT and inputs/yields utilized for disclosure. Discovery of choice models: Appropriate fit between the kind of choice issue and the KDT is needed for its powerful application in finding choice models from choice occasions. What's more, it is likewise important to recognize suitable measures for assessing the adequacy of a particular KDT in finding choice models for a particular sort of choice issue. Crucial prerequisites of information disclosure in databases are recognized as an abnormal state dialect for representation, precision, intriguing results, and productivity [8]. Examination issues and difficulties for learning disclosure in databases incorporate themes, for example, gigantic information sets, high dimensionality, client connection and former information, missing information, overseeing changes in information and information, and so on [7]. Data mart Data wareho KD T o o ls Decisio n operation al databases model Fig. 1: Role of learning revelation strategies in choice backing A significant number of these prerequisites are not specifically appropriate to revelation of choice models utilizing past choice samples. Case in point, adequacy of revelation is more imperative and important as contrasted and effectiveness in light of the fact that the quantity of choice occurrences is generally little contrasted with ordinary number of records in databases. Likewise, exactness of the found model can be exchanged off with straightforwardness of representation, especially when the found examples are to be seen too. It is not generally conceivable to touch base at a basic but then exact model because of conceivable irregularities in choice occurrences. Measures, for example, effortlessness and understandability may be characterized particular to every demonstrating standard. For instance, effortlessness measures can be characterized as far as length and unpredictability of choice tenets, and profundity and expansiveness of choice trees in standard based and choice tree based demonstrating ideal models individually. Representation of choice models: Decision models, when all is said in done, are altogether more perplexing thought about run of the mill organized information (e.g. social tables) in databases and information distribution centers. Representation of various choice models fitting in with distinctive spaces, diverse issues, distinctive chiefs, diverse time periods and distinctive demonstrating standards obliges more expand stockpiling structures. While a large number of these choice models are found utilizing KDT, it is additionally important to incorporate physically determined choice models (e.g., scientific models) as a feature of this representation. New models, advanced through the procedure of disclosure of patterns and examples, can be either deliberations of diverse models or models that incorporate different models. It is likewise important to speak to data, for example, chief recognizable proof, related choice issue, and use of the models. Representation of such fluctuated and complex parts of choice models obliges exceptional abilities. Discovery of examples in choice models: The unpredictability of capacity structures of choice models likewise brings about troubles in the process identified with revelation of examples and patterns in choice models. Such challenges may be talked about as for unification, mix and reflection forms. Unification alludes to the procedure of determining basic and semantic contrasts among choice models of same or distinctive choice issues. This procedure obliges (a) determining contrasts between distinctive models of same or diverse demonstrating standards for a given kind of choice issue, and (b) coordinating distinctive models of same or diverse displaying ideal models for choice issues having a place with diverse areas. The many-sided quality of unification procedure relies on the structure of choice models and the sources utilized for elicitation or revelation. On the off chance that the models of same standard are created utilizing a particular arrangement of tables in information shop/information stockroom, then there is not really any issue. Be that as it may, if diverse demonstrating standards or same displaying ideal model with distinctive inputs (e.g., AHP models with diverse orders and/or distinctive criteria) are utilized, then contrasts crosswise over distinctive models must be determined. Strategies and components for joining of models inside and crosswise over distinctive displaying ideal models are needed for compelling coordination of less complex choice models into more mind boggling models. Joining of choice models ought to likewise manage contrasts in displaying standards. A deliberation of an arrangement of choice models portrays the set as a solitary choice model. Case in point, it is conceivable to extract an arrangement of 20 choice models, spoke to as choice principles, relating to 20 chiefs into a solitary model that speaks to union of all the choice models. Any way to deal with location this errand ought to manage irregularities, clashes, and chiefs' subjectivity. Case in point, choice standards for particular sorts of issue utilized by distinctive leaders may allude to diverse properties and distinctive middle of the road conclusions. It might be conceivable to consolidate without hardly lifting a finger just the non-conflicting guidelines in such circumstances. With a specific end goal to address these issues in misusing KDT, we propose an improvement system for coordinating further research and the advancement of big business choice bolster situations. 4. A Framework for Enterprise Decision Support Environments In this area, we show a structure for creating venture choice bolster situations encouraging the proposed expansions to KDT and delineate how different issues recognized in Section 3 can be tended to. This structure underpins disclosure of choice models from choice occurrences and revelation of examples and patterns in choice models (Figure 2). Data marts Model marts KD Tools for Mode Model warehouse Data warehouse KD Too ls KD Too ls Decision Makers operational databases databases model bases Fig. 2: A Developmental structure for augmenting the part of information revelation methods a) Decision model disclosure: A crucial prerequisites for model revelation is the accessibility of choice examples. Most operational databases do contain such information. Numerous choice issues (e.g., designation, task, anticipating, determination, positioning) are manageable to computerized model disclosure when mapped to arrangement, bunching and forecast sorts of issues. A mixed bag of KDT (e.g., choice trees, principle disclosure, neural systems, unpleasant sets, hereditary calculations, closest neighbor strategies, fluffy standard revelation), and in addition grouping, estimation, and connection investigation procedures can be utilized for model disclosure. Then again, any system utilized for this reason ought to create models, not at all like prior variants of counterfeit neural systems, that are instinctive and fathomable to run of the mill chiefs. b) Model Marts and Model Warehouses: We propose an answer for the model vault issue by adjusting the ideas of information shop/information distribution center to oversee choice models that compare to distinctive leaders over diverse times of time. We utilize the terms model bazaar and model distribution center to characterize ideas like information shop and information stockroom separately. These segments give components to procurement, stockpiling and access to different choice models. Albeit in our proposed methodology choice models are found by KDT, it is conceivable to incorporate physically created models as a major aspect of model stores and model distribution centers. Model bazaars and model distribution centers, in this manner, go about as a storehouse for at present operational and verifiable choice models, like the information shops and information stockrooms. The operational models, be that as it may, will be in the model base part of different DSS. Every model bazaar goes about as a storehouse of models fitting in with a particular choice making space (e.g., promoting and creation). A regular model store may incorporate the accompanying: - models speaking to the choice making procedures of one or more chiefs found by one or more KDT, - models having a place with a particular area subsequent to determining the auxiliary and semantic contrasts with connections to unique model, - abstractions of diverse models relating to a particular kind of choice issues, - integrated models of diverse choice issues inside of a particular area, and - models that are characterized physically by chiefs/DSS developers or traded from operational DSS. A model distribution center can be assembled utilizing models having a place with diverse model bazaars. What's more, model distribution center contains models characterizing further mix crosswise over diverse spaces. Unification of model parameters may be needed preceding this incorporation. The model distribution center and model bazaars bolster examination and incorporation of choice making examples happening at diverse, however related, spaces over the association, reason impact connections among distinctive areas, and so forth. A key contrast, be that as it may, between these parallel ideas is the procedure of building these parts. While information stockrooms are utilized to populate information bazaars (a top-down methodology), model shops are utilized to construct model distribution centers (a base up methodology). Usage of the model vault can be done either as a basic database with tables to portray choice models together with full content or double representations of models, or as an article arranged archive with choice models spoke to as items with the related conduct. The previous sort of usage simply gives stockpiling of models as utilized/sent out by the KDT utilized for model disclosure. In this manner, any type of examination including the substance of the model ought to additionally be given by the KDT. The recent sort of usage, as talked about beneath, can bolster more adaptable types of examination in finding choice model examples and patterns. Then again, the usage is subject to the structure of models and it ought to accommodate significant operations on the models. c) Discovery of examples and patterns in choice models: Among the three procedures recognized in the past segment, the unification procedure may not be specifically bolstered by KDT. On the other hand, it is conceivable to adjust outline incorporation and database interoperability approaches [2, 14] for this reason. Johannesson and Jamil [11] present a way to deal with incorporate two distinctive database constructions by basic and terminological institutionalization before blueprint examination and combining. They call attention to that information revelation and machine learning can be utilized to encourage composition incorporation. Comparable methodologies can be connected to the assignment of unification of models having a place with diverse areas. The unification prepare more often than not obliges help from clients in determining certain basic and semantic contrasts. Additionally, critical examination gave an account of choice model joining would be useful in this procedure. Ba et al. [1] survey the part of counterfeit consciousness in model administration and model building, and in prevailing upon numerous models. In specific cases, it is conceivable to tackle the unification issue including models of diverse standards by rediscovering the choice models utilizing a particular KDT. The deliberation procedure backings comprehension and investigation of choice model and it can be considered in any event at three unique levels: - Level 0: upheld by existing learning disclosure (KD) instruments - Level 1: upheld by augmentations to KD devices - Level 2: upheld by existing or new KD devices Level 0 sort of reflection includes the utilization of existing KD instruments on tables that portray choice models as opposed to the choice model substance. Tables depicting the choice models (e.g., an arrangement of traits, for example, vicinity of data/yield characteristics, date/time, leader ID, and level of unpredictability) can be utilized as inputs to the revelation process. The yield of reflection procedure can be, for instance, designs in models having comparative arrangements of data/yield qualities, affiliations and changes in properties utilized as a part of models at diverse times, and so forth. Level 1 kind of deliberation obliges support from the KD apparatuses. At this level, the KD apparatuses utilized for model revelation give operations on the choice model substance, for example, look at, distinction, union on two or more models. Level 2 kind of reflections offer a more refined arrangement of offices for disclosure of examples and patterns. It is expected that the models are spoken to in model stores/model distribution center in a shape that is agreeable to existing or new sorts of KD devices. For instance, a model communicated as an arrangement of principles or mathematical statements can be spoken to as an intricate article with essential segments catching the whole model. At the point when countless models having a place with diverse chiefs are utilized for reflection, we can't assemble every one of the models into a solitary model in light of the fact that it may not show the subjectivity of the leaders enough. O'Leary [21] recommends confirming that chiefs have comparable perspectives before conglomerating individual judgments, and alerts that if the specialists or leaders don't have comparative perspectives, it is aimless to total individual judgments. By grouping the models in light of likenesses and abstracting models in every bunch, we can land at a less number of dynamic models which thusly can be utilized to dissect contrasts among the leaders among different groups. Bunching of choice models into distinctive gatherings is generally needed for most reflections, especially level 2 sort. Systems, for example, bunch examination, information envelopment investigation and discriminant investigation can be utilized for finding groups taking into account similitudes in the choice models. In the wake of grouping, different models inside of every bunch can be dreamy. The intricacy of this undertaking relies on upon the standard used to model individual choice making procedures in a gathering. Extra necessities from KD devices utilized as a part of such choice bolster situations can be assembled under client interface and interface between different segments. The client interface ought to give offices to detail of points of interest to different disclosure procedures, for example, inputs, yields, and KD devices to be utilized for revelation. Capacity to determine destinations for model disclosure action (e.g., most extreme number of models, least level of exactness) will likewise be needed. When all is said in done, the client interface ought to furnish communication with the framework from operational and exploratory viewpoints. The operational point of view ought to give offices that are basic to numerous DSS (e.g., information perception in information stockrooms/information stores, discovering intriguing examples and relationship in information). The exploratory point of view ought to give comparable offices on choice models in model stores and model distribution centers. Normal offices between these two modes incorporate astute help with different undertakings, visual particular environment, instinctive graphical client interface, and so on. Help through keen specialists that are adaptable and self-sufficient [15, 20] for computerized disclosure of examples in information and choice models might likewise be considered. Offices for interfacing with different frameworks ought to incorporate importing and sending out choice models found to other existing frameworks, and access to a mixture of information revelation and information mining systems. The methodology and system portrayed in this segment gives a premise to creating endeavor choice bolster situations that oblige information stockrooms, information shops, model distribution centers and model stores alongside different parts. Diverse procedures may be acknowledged utilizing the use of distinctive systems and techniques. DSS designers or leaders themselves can perform undertakings that oblige human investment. 5. Conclusion In this paper, we proposed augmentations to the customary part of KDT to bolster examination and mix of choices settled on by diverse leaders at different authoritative levels. This part includes revelation of choice models from choice examples and disclosure of examples and patterns in choice models from diverse spaces. A formative system for big business choice bolster situations is displayed to bolster the proposed methodology. The proposed augmentations are required to result in upgraded backing to leaders at different hierarchical levels. To begin with, utilizing KDT it is conceivable to create obliged models rather than an expert performing these errands. Such an application disposes of the dull, monotonous and less proficient procedure of elicitation and representation by experts from diverse chiefs. Consequently, utilizing choice models rather than particular choice occasions in the investigations, we can wipe out some of these issues due to a littler number of larger amount conceptual builds (i.e. choice models). Second, it is conceivable to utilize the created models for future choice making via naturally fusing these models as a major aspect of versatile choice emotionally supportive networks. Last, more elevated amount reflections of choice models and the examples and patterns in choice models over more periods can help leader to comprehend the examples in choice making. Furthermore, the proposed expansions and structure straightforwardly contribute towards building endeavor choice emotionally supportive networks by encouraging all the three learning administration standards to accomplish intrahierarchical information bases (as proposed in [1]). Suggestions for Research: The methodology and the structure proposed in this paper require critical coordination of exploration from the control of learning revelation in databases, model administration in DSS, information based frameworks, case-based thinking, wise operators, and information distribution centers. A portion of the difficulties in this incorporation include: (i) representation and capacity components for found choice models, (ii) finding examples in found choice models (a mind boggling undertaking contrasted with finding examples in databases), (iii) representation of models and patterns or changes in models, and (iv) examining the materialness of the proposed approach in diverse choice making circumstances. Suggestions for Development and Practice: Many discoveries and advancements in the field of DSS over the recent decades are not yet completely misused. A conceivable clarification for this can be the challenges connected with evoking and speaking to choice settling on procedures from normal leaders. The methodology displayed in this paper outlines the methods for mechanizing this troublesome undertaking. Utilizing such a methodology, it is conceivable to fabricate DSS that are better tuned to individual choice making styles and subjectivity in view of the past choices of individual chiefs. This methodology can consequently help in minimizing the exertion needed for creating DSS in a wide scope of utilizations, and upgrading shots of their acknowledgment by leaders. Choice bolster situations manufactured around the proposed structure can help chiefs at higher hierarchical levels in comprehension of current choice examples and changes in those examples over drawn out stretches of time. Associations can likewise utilize such data for acceptance of choices, check of consistency in choice settling on and arrangement of choices with hierarchical destinations and objectives, and for preparing the new staff. Abusing late improvements in these interdisciplinary fields can prompt building of big business choice bolster situations that bolster information administration and hierarchical adapting viably and effectively. References [1] S. Ba, K.R. Lang, and A.B. Whinston, Enterprise decision support using intranet technology. Decision Support Systems, 20, (1997), 99-134. [2] C. Batini, M. Lenzerini and S.B. Navathe, A comparative analysis of methodologies for database schema integration. ACM Computing Surveys, 18, 4, (1986), 323-364. [3] B. Billman and J.F. Courtney, Automated discovery in managerial problem formulation: Formation of causal hypotheses for cognitive mapping. Decision Sciences, 24, 1, (1993) 23-41. [4] N. Bolloju, "Decision Model Formulation of Subjective Classification Problem-Solving Knowledge Using a Neuro-Fuzzy Classifier and its Effectiveness", International Journal of Approximate Reasoning, 21, (1999) 197-213. [5] R.J. Brachman, T. Khabaza, W. Kloesgen, G. Piatetsky-Shapiro and E. Simoudis, Mining business databases. Communications of the ACM, 39, 11, (1996), 42-48. [6] K.C.C. Chan and A.K.C. Wong, A statistical technique for extracting classificatory knowledge from databases. Knowledge Discovery in Databases,G. Piatetsky-Shapiro, and W.J. Frawley, (eds.), AAAI Press, 1991, 107-123. [7] U. Fayyad, G. Piatetsky-Shapiro and P. Smyth, The KDD process for extracting useful knowledge from volumes of data. Communications of the ACM, 39, 11, (1996), 27-34. [8] W.J. Frawley, G. Piatetsky-Shapiro and C.J. Matheus, Knowledge Discovery in Databases, G. Piatetsky- Shapiro & W.J. Frawley, (eds.). AAAI Press, (1991), 1-27. [9] F.H. Grupe and M.M. Owrang, Database mining: Discovering new knowledge and competitive advantage. Information Systems Management, (Fall 1995), 26-31. [10] T. Hill, and W. Remus, Neural network models for intelligent support of managerial decision making. Decision Support Systems, 11, (1994), 449-459. [11] P. Johannesson and M.H. Jamil, Semantic interoperability: context, issues, and research directions. Proceedings of the Second International Conference on Cooperative Information Systems, Brodie, M. et al. (eds.), IEEE Press, (1994), 180191. [12] Y.-G Kim, H.-W. Kim, J.-W. Yoon and H.-S. Rye,Building an organizational decision support system for Korea Telecom: a process redesign approach. Decision Support Systems, 19, (1997), 255-269. [13] H. Kivijarvi, A substance-theory-oriented approach to the implementation of organizational DSS. Decision Support Systems, 20, (1997), 215241. [14] W. Litwin, L. Mark, and N. Roussopoulos, Interoperability of multiple autonomous databases. ACM Computing Surveys, 22, 3, (1990), 267-293. [15] P. Maes, et al., Agents that buy and sell,Communications of the ACM, March, 1999. [16] T.W. Malone, Is empowerment just a fad? Control, decision making, and IT. Sloan Management Review, (Winter 1997), 23-35. [17] I.S. Markham and C.T. Ragsdale, Combining neural networks and statistical predictions to solve the classification problem in discriminant analysis. Decision Sciences, 26, 2, (1995), 229-242. [18] A.I. Mechitov, H.M. Moshkovich and Olson D.L., Problems of decision rule elicitation in a classification task. Decision Support Systems, 12, (1994), 115-126. [19] J.P. Morrill, Distributed recognition of patterns in time series data. Communications of the ACM, 41, 5, (1998), 45-51. [20] R. Murch, and T. Johnson, Intelligent Software Agents, Prentice Hall, 1999 [21] D.E. O’Leary, Determining differences in expert judgement: Implications for knowledge acquisition and validation. Decision Sciences, 24, 2, (1993), 395-407. [22] B. Widrow, D.E. Rumelhart and M.A. Lehr, Neural networks: applications in industry, business and science. Communications of the ACM, 37, 3, (1994),93-105. [23] T. Wittig, (ed.), ARCHON: An Architecture for Multi- Agent Systems, Ellis Horwood, 1992.