BISSA: Empowering web gadget communication with tuple spaces

Wickramasinghe, Udayanga; Wickramarachchi, Charith; Fernando, Pradeep; Sumanasena, Dulanjanie; Perera, Srinath; Weerawarana, Sanjiva

doi:10.1109/gce.2010.5676130

Cited by 2 publications

(1 citation statement)

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“…DTuples [10] and BISSA [11] make each tuple contain a subject key or message key and use a DHT to construct a huge tuple space by using the key as a distribution key. The load-distribution methods of these systems depend on the DHT used in the systems.…”

Section: Related Workmentioning

confidence: 99%

Dynamic Load-Distribution Method of uTupleSpace Data-Sharing Mechanism for Ubiquitous Data

Arakawa

Kashiwagi

Nakamura

et al. 2014

IEICE Trans. Inf. & Syst.

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SUMMARYThe number of networked devices of sensors and actuators continues to increase. We are developing a data-sharing mechanism called uTupleSpace as middleware for storing and retrieving ubiquitous data that are input or output by such devices. uTupleSpace enables flexible retrieval of sensor data and flexible control of actuator devices, and it simplifies the development of various applications. Though uTupleSpace requires scalability against increasing amounts of ubiquitous data, traditional load-distribution methods using a distributed hash table (DHT) are unsuitable for our case because of the ununiformity of the data. Data are nonuniformly generated at some particular times, in some particular positions, and by some particular devices, and their hash values focus on some particular values. This feature makes it difficult for the traditional methods to sufficiently distribute the load by using the hash values. Therefore, we propose a new load-distribution method using a DHT called the dynamichelp method. The proposed method enables one or more peers to handle loads related to the same hash value redundantly. This makes it possible to handle the large load related to one hash value by distributing the load among peers. Moreover, the proposed method reduces the load caused by dynamic load-redistribution. Evaluation experiments showed that the proposed method achieved sufficient load-distribution even when the load was concentrated on one hash value with low overhead. We also confirmed that the proposed method enabled uTupleSpace to accommodate the increasing load with simple operational rules stably and with economic efficiency.

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Section: Related Workmentioning

confidence: 99%

Dynamic Load-Distribution Method of uTupleSpace Data-Sharing Mechanism for Ubiquitous Data

Arakawa

Kashiwagi

Nakamura

et al. 2014

IEICE Trans. Inf. & Syst.

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A tuplespace event model for mashups

Sheng

Weber

Lutteroth

2011

Proceedings of the 23rd Australian Computer-Human Interaction Conference

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Inter-widget communication is essential for enterprise mashup applications. To implement it, current mashup platforms use the publish/subscribe pattern. However, the way publish/subscribe is used in these platforms requires a lot of manual wiring between widgets. In this paper, we propose a new Unified Widget Event Model (UWEM), which is conceptually an extension of Linda tuplespaces. UWEM separates event publishers and subscribers in space, time, and reference. Using the Keyboard-Level Model (KLM) we show that UWEM requires fewer operations to build typical mashups than conventional mashup platforms. We have implemented UWEM in a popular enterprise mashup framework, and performed an empirical study that compares UWEM with the established approach for creating mashups. The study confirms the KLM predictions, and shows that UWEM is significantly more efficient than the established approach.

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BISSA: Empowering web gadget communication with tuple spaces

Cited by 2 publications

References 15 publications

Dynamic Load-Distribution Method of uTupleSpace Data-Sharing Mechanism for Ubiquitous Data

Dynamic Load-Distribution Method of uTupleSpace Data-Sharing Mechanism for Ubiquitous Data

A tuplespace event model for mashups

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