Romance d\u27Estelle no. 3

Que j\u27aime avoir les Hirondelles a ma fenetre,tous les ans, venir m\u27apporter des nouvelles de l\u27approche du doux printems le meme nidme disent elles ba revoir les memes amoursce n\u27est qu\u27a des amans fideles a vous annoncerles beaux jours a vous annoncer les beaux jours. 2e CoupletLorsque les premieres geleesFont tomber les feuilles des bois,Les HIrondelles rassembleesS\u27appellent toutes sur les toits:Partons, partons, se disent elles,Fuyons la neige et les autans;Point d\u27hiver pour les coeurs fideles,Ils sont toujours dans le printems. 3e CoupletSi par malheur dans le voyage,Victime d\u27un cruel enfant,Une Hirondelle mise en cageNe peut rejoinder son amant;Vous boyez mourir l\u27hirondelleD\u27ennui de douleur et d\u27amour;Tandis que son amant fidele,Pres de la, meurt le meme jour

Romance d\u27Estelle no. 4

L\u27autre jour la bergere Annette ayant perdu son bel agneau pleurait et disait a l\u27echo ses chagrins que l\u27echo repeteah bel agneau tu me trompais lorsque tu paraissais me cherir pour la vie helas d\u27apres mon coeurje n\u27aurais cru jamais que l\u27on put trahir son amie 2e CoupletJe t\u27ai vu,dedaignant l\u27herbette,Mieux aimer souffrir de la faim,Que de prendre d\u27une autre mainLes fleurs que t\u27apportait AnntetteAh! bel agneau, tu me trompais,Lorsque tu paraissais me cherir pour la vie,Helas! d\u27apres mon coeur, je n\u27aurais cru jamaisQue l\u27on put quitter son amie. 3e CoupletAu moindre son de ma musette,Je te voyais vite accourirAujourd\u27hui tu m\u27entends gemir,Et tu fuis loin de ton Annette.Ah! bel agneau, tu me trompais,Lorsque tu paraissais me cherir pour la vieHelas! d\u27apres mon coeur, je n\u27aurais cru jamais Que l\u27on put quitter son amie

Scalable BGP Prefix Selection for Effective Inter-domain Traffic Engineering

Inter-domain Traffic Engineering for multi-homed networks faces a scalability challenge, as the size of BGP routing table continue to grow. In this context, the choice of the best path must be made potentially for each destination prefix, requiring all available paths to be characterised (e.g., through measurements) and compared with each other. Fortunately, it is well-known that a few number of prefixes carry the larger part of the traffic. As a natural consequence, to engineer large volume of traffic only few prefixes need to be managed. Yet, traffic characteristics of a given prefix can greatly vary over time, and little is known on the dynamism of traffic at this aggregation level, including predicting the set of the most significant prefixes in the near future. %based on past observations. Sophisticated prediction methods won't scale in such context. In this paper, we study the relationship between prefix volume, stability, and predictability, based on recent traffic traces from nine different networks. Three simple and resource-efficient methods to select the prefixes associated with the most important foreseeable traffic volume are then proposed. Such proposed methods allow to select sets of prefixes with both excellent representativeness (volume coverage) and stability in time, for which the best routes are identified. The analysis carried out confirm the potential benefits of a route decision engine

An integrative multi‐scale approach to regional agriculture to support the assessment and benefit of pest‐regulation services delivered by biodiversity

Ecology is first of all a scientific discipline, with its body of theories and methods, and a constant renewal of its main specific fields and principles. In that regard, Ecology is not different from the other scientific disciplines and produces an increasing number of outstanding publications on both fundamental and applied grounds. Ecology can produce highly theoretical works, which is essential, but Ecology can be -and even moremust be an applied science. Currently, practical applications of Ecology for the benefits of our societies have become more numerous and increasingly urgent. ‘Interactions’, sensu lato, are at the very heart of Ecology which makes it by definition THE science of Biodiversity. Beyond the knowledge of how Life has appeared and developed, Ecology can provide the basis for the preservation of Biodiversity and ensure its management is relevant and efficient into the future. By being more integrative and global, Ecology could establish itself as the cornerstone of sustainable development. In this beginning of the 21st century, the influence of Ecology will inevitably grow and play a key role for Planet Earth and human well-being. Sfécologie2016, an International Conference on ecological sciences would not have taken place without 2 years of hard work from the staff of my Institute (IMBE). That is thus with a real pleasure that we welcome you today in Marseille. (Thierry TATONI IMBE Director

Improve round-trip time measurement quality via clustering in inter-domain traffic engineering

International audience; For multi-homed networks, inter-domain traffic engineering (TE) consists in selecting the best path via available transit providers, so that the transmission quality is improved in front of network events, such as congestion and fail-over. In practice, this choice bases on end-to-end (e2e) measurements toward destination networks. These measurements, especially Round-Trip Time (RTT), are expected to offer an faithful view on inter-domain path properties. Hosts in destination networks with open ports are deliberately discovered for active measurement. RTT traces so obtained can be influenced by host-local factors that are not relevant to inter-domain routing and eventually mislead route decisions. We data-mined the RTT time-series between two ASes with unsupervised learning method - clustering, on a set of statistic features. Achieved results showed that our method was capable of improving data quality, by excluding less reliable traces. Moreover, we considered traceroute measurements. Early results suggested that most variations of e2e delay actually occured in access networks. We thus believe that the proposed scheme can improve the accuracy and stability of the route selection for multi-homed networks

Scalable BGP Prefix Selection for Effective Inter-domain Traffic Engineering

International audience<p>Inter-domain Traffic Engineering for multi-homed networks faces a scalability challenge, as the size of BGP routing table continue to grow. In this context, the choice of the best path must be made potentially for each destination prefix, requiring all available paths to be characterized (e.g., through measurements) and compared with each other.Fortunately, it is well-known that a few number of prefixes could carry a dominant part of the traffic. As a natural consequence, to engineer a majority of traffic only a handful of prefixes need to be managed. Yet, traffic characteristics of a given prefix can vary greatly over time, which requires us to predict most significant prefixes in the near future. Moreover, little is known on the traffic dynamism at this aggregation level and sophisticated prediction methods won’t scale in such context.In this paper, we study the relationship between prefix volume, stability, and predictability, based on recent traffic traces from nine different networks.Three simple and resource-efficient methods to se- lect the prefixes associated with the most important foreseeable traffic volume are then proposed. Such proposed methods are capable of select sets of prefixes with both excellent representativeness (volume cover- age) and stability in time, for which the best routes are identified. The analysis carried out confirms the potential benefits of a route decision engine.</p