Events this year

2018-08-14

Norddesign 2018

Conference - Department of Management and Engineering
2018-08-14 -- 2018-08-17 Linköping University is proud to invite participation in the 2018 Norddesign conference august 14-17. Norddesign is a bi-annual Nordic conference, covering design, design engineering and design education in its full width. Topics include engineering, manufacturing, aesthetics, emotions, ergonomics, sustainability, and business.
Location: A Building, Campus Valla, Linköping University, Sweden
For more info see http://norddesign2018.org, contact Simon Schütte, e-mail simon.schutte@liu.se.

2018-08-23

European patent opportunities

Seminar - Linköpings universitet
We are happy to welcome three representatives from the European Patent Office in Munich to our region, August 23-24. It is a great opportunity for researchers as well as companies and other actors to get basic information as well as an update on opportunities for patent protection in Europe and their implications. Seminars will be given in both Norrköping (the 23rd) and Linköping (the 24th). Each day there will be an introduction to intellectual property rights and the patent system in general (IP Basics 8:30-10:00) and a deeper look into Computer-Implemented Inventions and Artificial Intelligence (IP Advanced 10:30-12:15). There will be a certain focus on ICT, image processing and AI, but most of the information will be generally applicable. You may participate the entire morning in each city, or just in one of the sessions. Registration below.
Last date to sign up: 2018-08-21
08:30 - 12:15
Location: LiU, Campus Norrköping, Kopparhammaren 2, KO23
For more info see https://goo.gl/forms/DbAzCu2MLfNg32zp2, contact Anders Carlsson, e-mail anders.carlsson@visualsweden.se, phone 0705-388908.

2018-08-24

European Patent Opportunities

Seminar - Linköpings universitet
We are happy to welcome three representatives from the European Patent Office in Munich to our region, August 23-24. It is a great opportunity for researchers as well as companies and other actors to get basic information as well as an update on opportunities for patent protection in Europe and their implications. Seminars will be given in both Norrköping (the 23rd) and Linköping (the 24th). Each day there will be an introduction to intellectual property rights and the patent system in general (IP Basics 8:30-10:00) and a deeper look into Computer-Implemented Inventions and Artificial Intelligence (IP Advanced 10:30-12:15). There will be a certain focus on ICT, image processing and AI, but most of the information will be generally applicable. You may participate the entire morning in each city, or just in one of the sessions. Registration below.
Last date to sign up: 2018-08-21
08:30 - 12:15
Location: LiU, Campus Valla, house B, entrance 27, room: Ada Lovelace
For more info see https://goo.gl/forms/Igfme7f6SA4kdnck1, contact Anders Carlsson, e-mail anders.carlsson@visualsweden.se, phone 0705388908.

2018-08-28

Research Director for Ericsson Research: "5 G - Connecting Everything"

Seminar - Linköpings universitet
"5 G - Connecting Everything" is the title of the presentation by Magnus Frodigh, Research Director for Ericsson Research, on August 28th. Warmly welcome to listen, ask questions and discuss the future. No pre-registration required.
12:30 - 13:15
Location: Ada Lovelace Room, B-House Entrance 27, Campus Valla, Linköping University
For more info contact Maria Swartz, e-mail maria.swartz@liu.se, phone 013-288993.

Seminar in Mathematical Statistics

Seminar - Department of Mathematics
Chencheng Hao, School of Statistics and Information, Shanghai University of International Business and Economics. Title: Estimation of Kronecker structured covariance based on modified Cholesky decomposition.
15:15 - 16:15
Location: Hopningspunkten, B Building, entrance 23-25, ground floor, Campus Valla
For more info see https://old.liu.se/mai/seminarier/seminarier-i-matematisk-statistik?l=sv, contact Torkel Erhardsson, e-mail torkel.erhardsson@liu.se.

2018-08-30

Licentiate defense - Gustav Lindmark

Miscellaneous - Department of Electrical Engineering
Abstract: The control-theoretic notion of controllability captures the ability to guide a systems behavior toward a desired state with a suitable choice of inputs. Controllability of complex networks such as traffic networks, gene regulatory networks, power grids etc. brings many opportunities. It could for instance enable improved efficiency in the functioning of a network or lead to that entirely new applicative possibilities emerge. However, when control theory is applied to complex networks like these, several challenges arise. This thesis consider some of these challenges, in particular we investigate how control inputs should be placed in order to render a given network controllable at a minimum cost, taking as cost function either the number of control inputs or the energy that they must exert. We assume that each control input targets only one node (called a driver node) and is either unconstrained or unilateral. A unilateral control input is one that can assume either positive or negative values but not both. Motivated by the many applications where unilateral controls are common, we reformulate classical controllability results for this particular case into a more computationally-efficient form that enables a large scale analysis. We show that the unilateral controllability problem is to a high degree structural and derive theoretical lower bounds on the minimal number of unilateral control inputs from topological properties of the network, similar to the bounds that exists for the minimal number of unconstrained control inputs. Moreover, an algorithm is developed that constructs a near minimal number of control inputs for a given network. When evaluated on various categories of random networks as well as a number of real-world networks, the algorithm often achieves the theoretical lower bounds. A network can be controllable in theory but not in practice when completely unreasonable amounts of control energy are required to steer it in some direction. For unconstrained control inputs we show that the control energy depends on the time constants of the modes of the network, and that the closer the eigenvalues are to the imaginary axis of the complex plane, the less energy is required for control. We also investigate the problem of placing driver nodes such that the control energy requirements are minimized (assuming that theoretical controllability is not an issue). For the special case with networks having all purely imaginary eigenvalues, several constructive algorithms for driver node placement are developed. In order to understand what determines the control energy in the general case with arbitrary eigenvalues, we define two centrality measures for the nodes based on energy flow considerations: the first centrality reflects the network impact of a node and the second the ability to control it indirectly. It turns out that whether a node is suitable as driver node or not largely depends on these two qualities. By combining the centralities into node rankings we obtain driver node placements that significantly reduce the control energy requirements and thereby improve the “practical degree of controllability”.
10:15
Location: Ada Lovelace
For more info see http://www.isy.liu.se, contact Ninna Stensgård, e-mail ninna.stensgard@liu.se, phone 013-284725.

2018-08-31

Licentiate defense - Martin Lindfors

Miscellaneous - Department of Electrical Engineering
Abstract: Estimating the frequency of a periodic signal, or tracking the time-varying frequency of an almost periodic signal, is an important problem that is well studied in literature. This thesis focuses on two subproblems where contributions can be made to the existing theory: frequency tracking methods and measurements containing outliers. Maximum-likelihood-based frequency estimation methods are studied, focusing on methods which can handle outliers in the measurements. Katkovnik’s frequency estimation method is generalized to real and harmonic signals, and a new method based on expectation-maximization is proposed. The methods are compared in a simulation study in which the measurements contain outliers. The proposed methods are compared with the standard periodogram method. Recursive Bayesian methods for frequency tracking are studied, focusing on the Rao-Blackwellized point mass filter (RBPMF). Two reformulations of the RBPMF aiming to reduce computational costs are proposed. Furthermore, the technique of variational approximate Rao-Blackwellization is proposed, which allows usage of a Student’s t distributed measurement noise model. This enables recursive frequency tracking methods to handle outliers using heavy-tailed noise models in Rao-Blackwellized filters such as the RBPMF. A simulation study illustrates the performance of the methods when outliers occur in the measurement noise. The framework above is applied to and studied in detail in two applications. The first application is on frequency tracking of engine sound. Microphone measurements are used to track the frequency of Doppler-shifted variants of the engine sound of a vehicle moving through an area. These estimates can be used to compute the speed of the vehicle. Periodogram-based methods and the RBPMF are evaluated on simulated and experimental data. The results indicate that the RBPMF has lower rmse than periodogram-based methods when tracking fast changes in the frequency. The second application relates to frequency tracking of wheel vibrations, where a car has been equipped with an accelerometer. The accelerometer measurements are used to track the frequency of the wheel axle vibrations, which relates to the wheel rotational speed. The velocity of the vehicle can then be estimated without any other sensors and without requiring integration of the accelerometer measurements. In situations with high signal-to-noise ratio (SNR), the methods perform well. To remedy situations when the methods perform poorly, an accelerometer input is introduced to the formulation. This input is used to predict changes in the frequency for short time intervals.
13:15
Location: Ada Lovelace
For more info see http://www.isy.liu.se, contact Ninna Stensgård, e-mail ninna.stensgard@liu.se, phone 013-284725.

2018-09-05

Rett syndrome- Time for activities

Seminar - Linköpings universitet
09:30
For more info contact Tara Asadi, e-mail tara.asadi@liu.se, phone 011-363141.

The Mathematical Colloquium

Seminar - Department of Mathematics
Tilman Bauer, KTH Royal Institute of Technology. Title: Realizing Cohomology.
13:15 - 14:15
Location: Hopningspunkten, B Building, entrance 23-25, ground floor, Campus Valla
For more info see https://old.liu.se/mai/seminarier/matematiska-kollokviet?l=sv, contact Milagros Izquierdo, e-mail milagros.izquierdo@liu.se.

2018-09-21

Dissertation Yvonne Lindbäck IMH

Public Disputations - Department of Medical and Health Sciences
Yvonne Lindbäck will defend her thesis "Pre-surgery physiotherapy and pain thresholds in patients with degenerative lumbar spine disorder". Opponent: Gunilla Kjellby Wendt, Göteborg
09:00
Location: Berzeliussalen, entrance 65, level 9, Campus US
For more info see https://liu.se/medarbetare/yvoli07, contact Åsa Fahlstedt, e-mail asa.fahlstedt@liu.se.

2018-09-24

Thin Film Physics - Erik Ekström

Seminar - The Department of Physics, Chemistry and Biology
Erik Ekström presents his licentiate theses ”Growth and Thermoelectric Properties of CaMnO3-based Thin Films”. Opponent is Erik Lewin, Uppsala Universitet.
10:15
Location: Jordan/ Fermi J402 - Fysikhuset
For more info contact Per Eklund, e-mail per.eklun@liu.se, phone 013-28 89 40.

2018-09-26

Disability Research - Peter Molander

Public Disputations - Dept of Behavioural Sciences and Learning
Peter Molander, PhD student in Disability Research defends his thesis “From detection to intervention - Psychological aspects of online hearing rehabilitation”. Opponent: Professor Katja Boersma, Örebro University.
13:00
Location: Vallfarten, Campus Valla
For more info contact Maria Hugo-Lindén, e-mail maria.hugo-linden@liu.se, phone 013-28 20 30 .

2018-09-27

Licentiate seminar in Mathematics: Ahmed Al-Shujary

Seminar - Department of Mathematics
Ahmed Al-Shujary defends his licentiate thesis entitled "Kähler-Poisson algebras". Opponent is Johan Öinert, Professor, Blekinge Institute of Technology.
10:15
Location: Nobel BL32, B Building, entrance 23, ground floor, Campus Valla
For more info contact Ahmed Al-Shujary, e-mail ahmed.al-shujary@liu.se.

2018-09-28

Surface Physics and Chemistry - Yuqing Huang

Public Disputations - The Department of Physics, Chemistry and Biology
Yuqing will defence his PhD thesis "Spin generation and detection in low-dimensional semiconductors". Opponent is Sergey Ganichev, University of Regensburg.
10:15
Location: Planck, Fysikhuset entrance 57
For more info see http://ifm.liu.se, contact Weimin Chen, e-mail weimin.chen@liu.se, phone 013-28 17 95.

Dissertation - Annsofie Mahrs Träff

Public Disputations - ASC - Department of Social and Welfare Studies
Annsofie Mahrs Träff is defending her thesis "Fysisk aktivitet på särskilt boende". Opponent Bengt G Eriksson, professor at Høgskolen Innlandet, Norway
13:15
Location: K1
For more info see http://https://liu.se/organisation/liu/isv/asc, contact Anna Martin, e-mail Anan Martin@liu.se.

2018-10-01

Defence in Mathematics: Budor Shuaib

Public Disputations - Department of Mathematics
Budor Shuaib defends her doctoral thesis entitled "Ghostpeakons". Opponent is Erik Wahlén, Docent, Lund University.
10:15
Location: Nobel BL32, B Building, entrance 23, ground floor, Campus Valla
For more info see http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149805, contact Budor Shuaib, e-mail budor.shuaib@liu.se.

2018-11-15

Grundutbildningskommittén

Internal - Tema Institute
13:00 - 15:00
For more info see http://www.tema.liu.se/tema-anstalld?l=sv&sc=true, contact Elisabeth Samuelsson, e-mail elisabeth.samuelsson@liu.se, phone 13282174.

2018-12-06

WCMM symposium

Conference - Department for Clinical and Experimental Medicine
2018-12-06 13:00 -- 2018-12-07 15:00 Annual Symposium with the Wallenberg Center for Molecular Medicine at Linköping University
Location: Lecture hall Hugo Theorell, North entrance, level 9, Campus US
For more info see https://liu.se/en/research/wallenberg-centre-for-molecular-medicine, contact Stefan Klintström, e-mail stefan.welin.klintstrom@liu.se.

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Last updated: Fri Feb 11 15:37:24 CET 2011