Anúncios

A equipa STT ficou em 10º lugar na competição de Segurança Informática Volga CTF2017

1 Abril 2017, 00:19 - Rui Filipe Fernandes Prada

A equipa STT que representou o Instituto Superior Técnico na competição de Segurança Informática Volga CTF2017 está de parabéns. Conseguiu um honroso 10º lugar em quase 700 equipas. 

A competição decorreu no passado fim de semana e correspondeu a uma etapa de qualificação para a grande final a realizar nos dias 11 a 15 de Setembro em Samara na Federação Russa. A posição obtida abre a possibilidade à equipa de poder participar na final.

A classificação pode ser consultada nesta ligação:
https://quals.2017.volgactf.ru/scoreboard?full=true


Research seminar - Andre Freitas, University of Passau, Germany - Monday, April 3, 14:00-16:30 pm

20 Março 2017, 13:21 - Ana Maria de Almeida Nogueira Marques

Title: How to talk to your data: Scalable semantic interpretation techniques for heterogeneous data

Speaker: André Freitas, University of Passau, Germany

Date and time: Monday, April 3, 14:00 pm

Location: CSE meeting room (Informática II - Alameda), videocast to DSI room in Tagus.

Abstract:
The recent evolution of approaches, data resources and tools in the Natural Language Processing (NLP) and Artificial Intelligence (AI) fields brings the opportunity for theconstruction of data analysis methods and information systems which are able towork over unstructured, complex and semantically heterogeneous data. The ability to systematically structure, integrate, query and operate over unstructured and highly variable data at scale emerges as a strong demand across different fields which are dependent on analytical reasoning. In this talk we will describe contemporary techniques to automatically interpret the meaning of unstructured data at scale and the emerging formal and methodological data science foundations which support addressing the data variety dimension for Big Data scenarios. A particular emphasis will be given to the description of information extraction, knowledge representation and semantic parsing models and how these models can be combined to build systems that perform complex interpretation tasks such as Question Answering under real-world data conditions.

Bio:
André Freitas is a research group leader and lecturer at the Natural Language Processing & Semantic Computing research group at the University of Passau in Germany. Before joining Passau, he was part of the Digital Enterprise Research Institute (DERI) at the National University of Ireland, Galway where he did his PhD on Schema-agnostic Query Mechanisms for Large-Schema Databases. André holds a BSc. in Computer Science from the Federal University of Rio de Janeiro (UFRJ), Brazil. His main research areas include Question Answering, Schema-agnostic Database Query Mechanisms, Natural Language Query Mechanisms over Large-Schema Databases, Distributional Semantics, Hybrid Symbolic-Distributional Models, Approximate Reasoning and Knowledge Graphs.


Research seminar - Pedro da Rocha Pinto, Imperial College London - Monday, March 13, 4pm

7 Março 2017, 23:13 - Maria de Lurdes Piado Farrusco

Title: Automatic Verification for Fine-grained Concurrency
Speaker: Pedro da Rocha Pinto, Imperial College London, UK
Date and time: Monday, March 13, 4pm
Location: CSE meeting room (Informática II - Alameda), videocast to DSI room in Tagus.

Abstract:

Recent developments have been made in program logics based on separation logic. These logics emphasise a modular approach to prove functional correctness for fine-grained concurrent programs, but have no automation support. I present Caper, a prototype tool for automated reasoning in such a logic. Caper is based on symbolic execution, integrating reasoning about interference on shared data and about ghost resources that are used to mediate this interference. This enables Caper to verify functional correctness of fine-grained concurrent algorithms.

Bio:
Pedro da Rocha Pinto completed his PhD at the Department of Computing at Imperial College London, where he has developed logics for program verification, especially for fine-grained concurrency. He now works on tools to mechanise concurrency verification as a PostDoc under Philippa Gardner at Imperial College London.


Talk by Prof. Cristian Cadar

17 Fevereiro 2017, 11:20 - Maria Lucilia Gonçalves Abreu

Theme: Symbolic Execution for Evolving Software

Speaker: Prof. Cristian Cadar - Imperial College London

When: Friday, February 24th

Where: Rua Alves Redol, 9  Room 0.20,  Lisboa

Hour: 11 a.m.

Abstract: One of the distinguishing characteristics of software systems is that they evolve: new patches are committed to software repositories and new versions are released to users on a continuous basis. Unfortunately, many of these changes bring unexpected bugs that break the stability of the system or affect its security. In this talk, I describe our work on devising novel symbolic execution techniques for increasing the confidence in evolving software: a technique for reasoning about the correctness of optimizations, in particular those that take advantage of SIMD and GPGPU capabilities; a technique for high-coverage patch testing, and a technique for revealing regression bugs and behavioural divergences across versions.

Bio: Cristian Cadar is a Reader (Associate Professor) in the Department of Computing at Imperial College London, where he leads the Software Reliability Group. His research interests span the areas of software engineering, computer systems and security, with an emphasis on building practical techniques and tools for improving the reliability and security of software systems. He was elected as a Fellow of the British Computer Society in 2016, awarded the ACM Computer and Communications Security (CCS) Test of Time Award in 2016, the EuroSys Jochen Liedtke Young Researcher Award in 2015, an EPSRC Early-Career Fellowship in 2013, and artifact or paper awards at ICST 2016, ISSTA 2014, ESEC/FSE 2013 and OSDI 2008. Cristian received a PhD in Computer Science from Stanford University, and undergraduate and Master's degrees from the Massachusetts Institute of Technology.


TM Forum Hachathon Action Week Lisbon Portugal

16 Janeiro 2017, 15:50 - Maria Lucilia Gonçalves Abreu