Chemical Process Plant as a complex system requires good scientific knowledge on different issues including Process Safety Analysis (PSA). Fuzzy logic is the collective name for “Fuzzy set analysis” and “Possibility theory”, able to use random or approximate data in the Process Safety Analysis. This paper explains the impact of fuzzy set theory for basic tools used in Process Safety Analysis. I...

A mechanism is designed here to realize Network_Load_Balancing (NLB) by directing handover based on Media Independent Handover for vehicular based systems. We designed a Predictive_Link_Going_Down event based on Media Independent Event Service which accurately estimates the performance degradation to predict vehicle movements and a Predictive_Handover_Information_Structure (PHIS) based on Media...

We present a method for inducing a set of rules from time series data, which is originated from a system monitoring process. The proposed method is called MAPS (Mining Aberrant Patterns in Sequences) and it may be used in decision support or in control to identify faulty system states. It consists of four parts: training, identification, mining and prediction. In order to improve the flexibilit...

The Java event delegation model is simple and efficient, yet may not suffice for complex designs. The COSS Event Service is powerful in theory, but its actual power depends on “quality of service”, with is a rather fuzzy concept. The InfoBus event model features strong and interesting capabilities, but exposes one drawback – it is not distributed. This paper presents a new Java event architectu...

Most existing recommender systems employ collaborative filtering (CF) techniques in making projections about which items an eservice user is likely to be interested in, i.e. they identify correlations between users and recommend items which similar users have liked in the past. Traditional CF techniques, however, have difficulties when confronted with sparse rating data, and cannot cope at all ...

There have been a number of previous successful efforts that show how fuzzy logic concepts have homomorphic-like stochastic correspondences, utilizing one-point coverages of appropriately constructed random sets. Independent of this and fuzzy logic considerations in general, boolean relational event algebra (BREA) has been introduced within a stochastic setting for representing prescribed compo...

In order to more effectively cope with the real-world problems of vagueness, fuzzy discrete event systems (FDESs) were proposed recently, and the supervisory control theory of FDESs was developed. In view of the importance of failure diagnosis, in this paper, we present an approach of the failure diagnosis in the framework of FDESs. More specifically: (1) We formalize the definition of diagnosa...

In this paper we present a method to improve the automatic detection of events in short sentences when in the presence of a large number of event classes. Contrary to standard classification techniques such as Support Vector Machines or Random Forest, the proposed Fuzzy Fingerprints method is able to detect all the event classes present in the ACE 2005 Multilingual Corpus, and largely improves ...