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| Authors: | Kai Lampka, Markus Siegle, Joern Ossowski, Christel Baier |
| Group: | Computer Engineering |
| Type: | Techreport |
| Title: | Partially-shared Zero-Suppressed Multi-Terminal BDDs: Concept, Algorithms and Applications |
| Year: | 2008 |
| Pub-Key: | LSOB08 |
| Keywords: | Binary Decision Diagrams and their algorithms, quantitative verification of systems, symbolic data structures for performance analysis |
| Rep Nbr: | 289 |
| Institution: | TIK |
| Abstract: | Multi-Terminal Binary Decision Diagrams (MTBDDS) are a well accepted technique for the state graph (SG) based quantitative analysis of large and complex systems specified by means of high-level model description techniques. However, this type of Decision Diagram (DD) is not always the best choice, since finite functions with small satisfaction sets, and where the fulfilling assignments possess many 0-assigned positions, may yield relatively large MTBDD based representations. Therefore, this article introduces zero-suppressed MTBDD and proves that they are canonical representations of multi-valued functions on finite (input) sets. For manipulating DDs of this new type, possibly defined over different sets of function variables, the concept of partially-shared zero-suppressed} MTBDDs and respective algorithms are developed. The efficiency of this new approach is demonstrated by comparing it to the well-known standard type of MTBDDs, where both types of DDs have been implemented by us within the C++-based DD-package Jinc. The benchmarking takes place in the context of Markovian analysis and probabilistic model checking of systems. In total, the presented work extends existing approaches, since it not only allows one to directly employ (multi-terminal) zero-suppressed DDs in the field of quantitative verification, but also clearly demonstrates their efficiency. |
| Remarks: | Accepted for publications in Formal Methods in System Design (http://www.springer.com/engineering/circuits+&+systems/journal/10703) |
| Location: | Gloriastr. 35, 8092 Zuerich |
| Resources: | [BibTeX] [Paper as PDF] |
