Agreement Computing

[EN] In this paper we introduce the concept of Agreement Computing, motivate the central role that the concept of agreement plays in open software systems and discuss a number of research challenges that need to be addressed to make the agreement computing vision a reality.Research supported by the Agreement Technologies CONSOLIDER project under contract CSD2007-0022 and INGENIO 2010 and by the Agreement Technologies COST Action, IC0801.Sierra Garcia, C.; Botti Navarro, VJ.; Ossowski, DS. (2011). Agreement Computing. KI - Künstliche Intelligenz. 25(1):57-61. https://doi.org/10.1007/s13218-010-0070-yS5761251Arcos JL, Esteva M, Noriega P, Rodríguez JA, Sierra C (2005) Engineering open environments with electronic institutions. Eng Appl Artif Intell 18(2):191–204Boella G, Noriega P, Pigozzi G, Verhagen H (2009) In: Dagstuhl seminar proceedings 09121: normative multi-agent systems.Henrik G, Wright V (1963) Norm and action, a logical enquiry. Routledge and Kegan Paul, LondonHermenegildo M, Albert E, López-García P, Puebla G (2005) Abstraction carrying code and resource-awareness. In: Principle and practice of declarative programming. ACM Press, New YorkJennings N, Faratin P, Lomuscio A, Parsons S, Sierra C, Wooldridge M (2001) Automated negotiation: prospects methods and challenges. Group Decis Negot 10(2):199–215Jøsang A, Ismail R, Boyd C (2007) A survey of trust and reputation systems for online service provision. Decis Support Syst 43(2):618–644Kalfoglou Y, Schorlemmer M (2003) IF-Map: an ontology-mapping method based on information-flow theory. In: Spaccapietra S, March S, Aberer K (eds) Journal on data semantics I. Lecture notes in computer science, vol 2800. Springer, Heidelberg, pp 98–127Ko RKL, Lee SSG, Lee EW (2009) Business process management (bpm) standards: a survey. Bus Process Manag J 15(5):744–791Kraus S (1997) Negotiation and cooperation in multi-agent environments. Artif Intell 94(1–2):79–97March J (1996) A preface to understanding how decisions happen in organizations. In: Organizational decision-making, Cambridge University Press, CambridgeNecula GC, Lee P (1996) Proof-carrying code. Tech repRoss A (1968) Directives and norms. Humanities, Atlantic HighlandsSierra C, Debenham J (2006) Trust and honour in information-based agency. In: Proceedings of the 5th international conference on autonomous agents and multiagent systems. ACM Press, New York, pp 1225–1232Simon HA Administrative behavior. Free Press (1997)Vasirani M, Ossowski S (2009) A market-inspired approach to reservation-based urban road traffic management. In: Proceedings of the 8th international conference on autonomous agents and multiagent systems, IFAAMAS, pp. 617–62

Multi-messenger observations of a binary neutron star merger

On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of ~1.7 s with respect to the merger time. From the gravitational-wave signal, the source was initially localized to a sky region of 31 deg2 at a luminosity distance of 40+8-8 Mpc and with component masses consistent with neutron stars. The component masses were later measured to be in the range 0.86 to 2.26 Mo. An extensive observing campaign was launched across the electromagnetic spectrum leading to the discovery of a bright optical transient (SSS17a, now with the IAU identification of AT 2017gfo) in NGC 4993 (at ~40 Mpc) less than 11 hours after the merger by the One- Meter, Two Hemisphere (1M2H) team using the 1 m Swope Telescope. The optical transient was independently detected by multiple teams within an hour. Subsequent observations targeted the object and its environment. Early ultraviolet observations revealed a blue transient that faded within 48 hours. Optical and infrared observations showed a redward evolution over ~10 days. Following early non-detections, X-ray and radio emission were discovered at the transient’s position ~9 and ~16 days, respectively, after the merger. Both the X-ray and radio emission likely arise from a physical process that is distinct from the one that generates the UV/optical/near-infrared emission. No ultra-high-energy gamma-rays and no neutrino candidates consistent with the source were found in follow-up searches. These observations support the hypothesis that GW170817 was produced by the merger of two neutron stars in NGC4993 followed by a short gamma-ray burst (GRB 170817A) and a kilonova/macronova powered by the radioactive decay of r-process nuclei synthesized in the ejecta

An ontology supported risk assessment approach for the intelligent configuration of supply networks

As progress towards globalisation continues, organisations seek ever better ways with which to configure and reconfigure their global production networks so as to better understand and be able to deal with risk. Such networks are complex arrangements of different organisations from potentially diverse and divergent domains and geographical locations. Moreover, greater focus is being put upon global production network systems and how these can be better coordinated, controlled and assessed for risk, so that they are flexible and competitive advantage can be gained from them within the market place. This paper puts forward a reference ontology to support risk assessment for product-service systems applied to the domain of global production networks. The aim behind this is to help accelerate the development of information systems by way of developing a common foundation to improve interoperability and the seamless exchange of information between systems and organisations. A formal common logic based approach has been used to develop the reference ontology, utilising end user information and knowledge from three separate industrial domains. Results are presented which illustrate the ability of the approach, together with areas for further work

TamForen

Cloud forensics has become increasingly critical in cloud computing security in recent years. A fundamental problem in cloud forensics is how to safely and effectively obtain, preserve, and analyze evidence. With massive cloud forensic systems and tools having been proposed over the years, we identify one challenge that is not adequately addressed in the current literature. The problem is “credibility of cloud evidence”; this is where the evidence collected in the cloud is unreliable due to its multitenancy and the multiple participants in the forensic process. In this paper, we develop a new Cloud Forensics Tamper-Proof Framework (TamForen) for cloud forensics, which can be used in an untrusted and multitenancy cloud environment. This framework relies on the cloud forensics system independent of the daily cloud activities and is implemented based on the Multilayer Compressed Counting Bloom Filter. Unlike existing cloud forensics methods that depend on the support and trust of cloud service providers, TamForen takes into account the untrustworthiness of participants in the forensics process and conducts tamper-proof protection of data in a decentralized way without violating users' privacy. We simulate a cloud forensics environment to evaluate TamForen, and the results show that TamForen is feasible