{"title":"Panel on cooperative multiagent systems for the Web","authors":"A. Joshi","doi":"10.1109/COOPIS.1997.613804","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613804","url":null,"abstract":"There is an explosion in the amount of information that is accessible by the public, especially with the advent of the World Wide Web. With this information only expected to increase as time goes on, there is an obvious need for mechanisms which would allow individuals to access the right information. In the context of the Web, this can be referred to as personalization of the information source(s). The author touches upon various issues and technologies, as well as their interrelationships. These include interaction between agents, cooperation amongst heterogeneous information sources, and coordinating the activities of these agents using workflow.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131408256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A TV news retrieval system with interactive query function","authors":"Y. Ariki, Y. Sugiyama","doi":"10.1109/COOPIS.1997.613815","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613815","url":null,"abstract":"The paper describes a system which can automatically classify TV news articles using a keyword spotting technique and can also answer queries from users interactively. The keyword spotting technique can extract a keyword sequence with their probabilities and the extracted keywords are attached to the article for retrieval. The TV news article can be classified into topics such as politics, economy, science and so on by integrating acoustic keyword probability and topic contribution probability of the keyword, which is the probability of how a keyword contributes to classify the article. TV news is retrieved by speech including the keywords attached to the articles. The system is also installed with a query-answering function that can answer user queries of unfamiliar words included in TV news speech.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124708215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Poster on \"Exception handling in ADOME workflow management system\"","authors":"Dickson K. W. Chiu, K. Karlapalem, Qing Li","doi":"10.1109/COOPIS.1997.613820","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613820","url":null,"abstract":"Summary form only given. The paper discusses exception handling in ADOME workflow management system (WMS). ADOME (Advanced Object Modeling Environment) is an active OODBMS extended with role facilities, built by integrating ITASCA (OODB) and CLIPS (inference engine). It provides a good supporting environment for the dynamic features required for a workflow management system, especially for online exception handling. In ADOME-WFMS, exception handlers can be procedural (extra branches of existing activity decomposition for exception handling) or declarative (in the form of ECA rules that can be specified within the scope of different activity and sub-activity levels).","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121294204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bettina von Buol, S. Kethers, M. Jeusfeld, M. Jarke
{"title":"Poster on a terminology server for cooperative terminology work","authors":"Bettina von Buol, S. Kethers, M. Jeusfeld, M. Jarke","doi":"10.1109/COOPIS.1997.613822","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613822","url":null,"abstract":"A terminology represents the comprehensive list of concepts used in a particular subject area, their definitions, and terms viz. the names used in order to denote the concepts in a given language. Terminology work includes the creation and maintenance of terminologies. Our goal has been to provide a method to construct terminologies as ontological foundations for integrating information systems as postulated in (Wand and Yang, 1996). Common terminologies are crucial for cooperation, both for cooperative information systems and human teams. We have constructed a terminology server based on a meta model that integrates the various perspectives of terminology work, namely expert, domain, terminology structure, and terminology work process. These perspectives serve as foundations for models whose instantiations can be adapted to specific application contexts. In setting up a terminology work application, users can select models which are then instantiated, adapted and combined in a component ware-like fashion. The meta model, the models, their instantiations, and the actual terminology data are formulated in Telos, a knowledge representation language that integrates frame-like concept descriptions and deductive database elements, and stored in ConceptBase, a deductive meta data management system.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116090372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A paradigm for security enforcement in CapBasED-AMS","authors":"P. Hung, K. Karlapalem","doi":"10.1109/COOPIS.1997.613805","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613805","url":null,"abstract":"The CapBasED-AMS (CAPability-BASed and Event-Driven Activity Management System) deals with the management and execution of activities. A problem-solving agent (PSA) is a human, a hardware system or a software system having the ability to execute activities. An activity consists of multiple interdependent tasks that need to be coordinated, scheduled and executed by a set of PSAs. Since security is an essential and integral part of activities, the activity management system has to manage and execute the activities in a secure way. In the CapBasED-AMS, threats such as unauthorized access or modification are identified as events. The security pilferage or illegal violation of privacy through the accessing of specification-time, compile-time or run-time data from the activity management system and the PSAs is monitored, controlled and reported. We present a secure CapBasED-AMS by taking into consideration: the system infrastructure; secure match-making with additional security constraints; security policies and a secure PSA; the task coordination model for security resource control from the PSA viewpoint, the organization viewpoint, the task viewpoint and the activity viewpoint by adapting a role-based resource security model; and secure execution of tasks with the PSA role-based security model.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"4 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122542910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Collision of constrained work spaces: a uniform concept for design interactions","authors":"R. Sturm, J. Mülle, P. Lockemann","doi":"10.1109/COOPIS.1997.613799","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613799","url":null,"abstract":"Since participants in a design process are almost separated in time (in addition to the usual separation in space), databases are an ideal medium to support and control their interaction. The basic premise of the paper is that each design artifact can be represented as a design object which occupies a certain domain in an n-dimensional work space which includes time in order to reflect the design stage during which certain design decisions are valid. The central hypothesis of the paper is that various kinds of interaction among designers (such as detecting the effects of decisions by other designers and responding to them by, e.g., performing corrections or retracing older states in order to resume work from there, and such as detecting that their own decisions may affect either designers and reacting to them by explicit notification of changes to other individuals) can all be explained by the same concept of work space collision. Constraints associated with the work spaces can be used to arbitrate between the conflicts in the colliding work spaces. The idea is applied to a variety of interaction forms to demonstrate its validity.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116860224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DIIM: a foundation for translating loosely-specified queries into executable plans in large-scale information systems","authors":"A. Nica, Elke A. Rundensteiner","doi":"10.1109/COOPIS.1997.613818","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613818","url":null,"abstract":"Challenging issues for processing queries specified over large-scale information spaces (e.g. digital libraries or the World Wide Web) include the diversity of the information sources (ISs) in terms of their structures, query interfaces, as well as the dynamics of ISs continuously being added, removed or upgraded. Typically user queries are loosely specified expressing what the user wants but not how and from where the information is to be retrieved. In this paper we give an innovative solution for semantical query planning in such environments. The key idea underlying our solution is the notion of connected query rules defined to be precisely specified, executable queries that are semantically equivalent to a user query. For query planning in such a large-scale space, we introduce DIIM-the Dynamic Information Integration Model which supports the description of not only content but also capabilities of ISs, e.g., query templates of and interrelationships between ISs. This then lays the foundation for the translation algorithm that based on the connected query rule principle maps a loosely-specified query into the set of semantically equivalent queries.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133254148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Poster on rule-based technology for schema transformation","authors":"Yangjun Chen, W. Benn","doi":"10.1109/COOPIS.1997.613825","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613825","url":null,"abstract":"Summary form only given. As the first step of database integration, a participating local database schema should be transformed into an abstract one to remove data model conflicts. For our project, the object-oriented schema is chosen to represent the integrated information and a semi-automatic method is developed to transform relational schemas into OO schemas. The main idea behind this method is to define two kinds of logics: a relational database logic L/sub db/ and an object-oriented logic L/sub o/ to formalize the corresponding data models. L/sub db/ is used to model a database structure as well as its state, while L/sub o/ is utilized for an object-oriented database. Then, based on these formalisms, a set of Horn-clause-like rules is constructed to perform meta-level reasoning for translating a formalism into another.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121585932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Query modification in object-oriented database federations","authors":"Mark W. W. Vermeer, P. Apers","doi":"10.1109/COOPIS.1997.613816","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613816","url":null,"abstract":"We discuss the modification of queries against an integrated view in a federation of object-oriented databases. We present a generalisation of existing algorithms for simple global query processing that works for arbitrarily defined integration classes. We then extend this algorithm to deal with object-oriented features such as queries involving path expressions and nesting. We show how properties of the OO-style of modelling relationships through object references can be exploited to reduce the number of subqueries necessary to evaluate such queries.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121830219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Esin Gokkoca, Mehmet Altinel, Ibrahim Cingil, Nesime Tatbul, Pinar Koksal, A. Dogac
{"title":"Design and implementation of a distributed workflow enactment service","authors":"Esin Gokkoca, Mehmet Altinel, Ibrahim Cingil, Nesime Tatbul, Pinar Koksal, A. Dogac","doi":"10.1109/COOPIS.1997.613806","DOIUrl":"https://doi.org/10.1109/COOPIS.1997.613806","url":null,"abstract":"Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities, mostly in distributed heterogeneous environments, which are very common in enterprises of even moderate complexity. In current commercial workflow systems, the workflow scheduler is a single centralized component. A distributed workflow enactment service, on the other hand, should contain several schedulers on different nodes of a network, each executing a part of the process instances. Such an architecture would fit naturally into the distributed heterogeneous environments. Further advantages of a distributed enactment service are failure resiliency and increased performance, since a centralized scheduler is a potential bottleneck. In this paper, we present the design and implementation of a distributed workflow enactment service based on the work of M. Singh (1996). By starting with a block-structured workflow specification language, we avoid a very general set of dependencies and their related problems. In this way, it is possible to present a simple algorithm for the distributed scheduling of process instances. Further benefits of the approach are the ease of testing and debugging the system, and the execution efficiency through having a reduced number of messages.","PeriodicalId":293694,"journal":{"name":"Proceedings of CoopIS 97: 2nd IFCIS Conference on Cooperative Information Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129782216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}