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Dionysus: Dynamic Scheduling of Network Updates
(2014)Proceedings of the 2014 ACM Conference on SIGCOMM, SIGCOMM '14Conference Paper -
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Consistent Updates in Software Defined Networks: On Dependencies, Loop Freedom, and Blackholes
(2016)Proceedings of the 2016 IFIP Networking Conference (IFIP Networking) and WorkshopsConference Paper -
Fault-Tolerant ANTS
(2014)Lecture Notes in Computer Science ~ Distributed Computing : 28th International Symposium, DISC 2014, Austin, TX, USA, October 12-15, 2014. ProceedingsConference Paper -
Randomness vs. Time in Anonymous Networks
(2015)Lecture Notes in Computer Science ~ Distributed ComputingConference Paper -
Brain2Word: Improving Brain Decoding Methods and Evaluation
(2020)Medical Imaging Meets NeurIPS Workshop (MED-NeurIPS 2020). Accepted AbstractsBrain decoding, understood as the process of mapping brain activities to the stimuli that generated them, has been an active research area in the last years. In the case of language stimuli, recent studies have shown that it is possible to decode fMRI scans into an embedding of the word a subject is reading. However, such word embeddings are designed for natural language processing tasks rather than for brain decoding. Therefore, they ...Other Conference Item -
Debt Swapping for Risk Mitigation in Financial Networks
(2021)Proceedings of the 22nd ACM Conference on Economics and Computation (EC '21)We study financial networks where banks are connected by debt contracts. We consider the operation of debt swapping when two creditor banks decide to exchange an incoming payment obligation, thus leading to a locally different network structure. We say that a swap is positive if it is beneficial for both of the banks involved; we can interpret this notion either with respect to the amount of assets received by the banks, or their exposure ...Conference Paper -
High-Throughput and Low-Latency Hyperloop
(2020)2020 IEEE 23rd International Conference on Intelligent Transportation Systems (ITSC)Hyperloop pods are expected to travel faster than 1, 000 km/h. Apart from high speed, high throughput and low latency are crucial to hyperloop 's success. We show that hyperloop networks could transport as many passengers as train or plane networks. Our on-demand pod scheduling method provides passenger waiting times of only a few minutes, even at peak times. That minimizes the overall trip latencies. Further, our scheduling results in ...Conference Paper -
Brick: Asynchronous Incentive-Compatible Payment Channels
(2021)Lecture Notes in Computer Science ~ Financial Cryptography and Data Security. FC 2021Off-chain protocols (channels) are a promising solution to the scalability and privacy challenges of blockchain payments. Current proposals, however, require synchrony assumptions to preserve the safety of a channel, leaking to an adversary the exact amount of time needed to control the network for a successful attack. In this paper, we introduce Brick, the first payment channel that remains secure under network asynchrony and concurrently ...Conference Paper -
Timelocked Bribing
(2021)Lecture Notes in Computer Science ~ Financial Cryptography and Data Security. FC 2021A Hashed Time Lock Contract (HTLC) is a central concept in cryptocurrencies where some value can be spent either with the preimage of a public hash by one party (Bob) or after a timelock expires by another party (Alice). We present a bribery attack on HTLC's where Bob's hash-protected transaction is censored by Alice's timelocked transaction. Alice incentivizes miners to censor Bob's transaction by leaving almost all her value to miners ...Conference Paper