See all upcoming seminars in LäsIT and seminar web pages at the homepage for the PhD studentseminars, TDB, Vi2, Theory and Applications Seminars (TAS) @ UpMARC., Department of Mathematics and The Stockholm Logic Seminar.

Vi2 Seminar
Monday 19 Mar
Fred Hamprecht: Signed Graph Partitioning in (Bio-) Image Analysis
Location: ITC 4307, Time: 14:15

Abstract: Instance segmentation can be cast as a graph partitioning problem. The majority of models developed in this context have relied on purely attractive interactions between graph nodes. To obtain more than a single cluster, it is then necessary to manually set a merging or splitting threshold, or to pre-specify a desired number of clusters.

A notable exception to the above is multicut partitioning / correlation clustering, which allows for repulsive in addition to attractive interactions, and which automatically determines an optimal number of clusters. Unfortunately, the multicut problem is NP-hard.

In response, we propose an objective function that allows for both repulsive and attractive interactions, but which can be solved to optimality by a greedy algorithm. At the time of writing, the new scheme gives the state of the art results on the ISBI connectomics challenge.

Joint work with Steffen Wolf, Constantin Pape, Nasim Rahaman, Alberto Bailoni, Anna Kreshuk, Ullrich Koethe.

Vi2 Seminars Group
Anders Hast
Petter Ranefall


Half-Time Ph.D. Seminar
Wednesday 21 Mar
Carlos Perez Penichet: Integrating Battery-Free Devices into Commodity Wireless Sensor Networks
Location: ITC 2344, Time: 10:15

Carlos Perez Penichet will present his 50% seminar with the title "Integrating Battery-Free Devices into Commodity Wireless Sensor Networks".
Chairperson is Prof. David Black Schaffer.

Thiemo and Carlos

Abstract: Backscatter communication is emerging as the de-facto mechanism to connect battery-free devices because of its low power consumption. The requirement of an unmodulated carrier, the lack of a compatible receiver and the need for adequate medium access control mechanisms are only a few of the obstacles hindering the integration of backscatter-enabled devices with existing sensor network technologies. In the seminar I present three examples of our efforts in overcoming these obstacles. First, I show our vision to augment existing sensor networks with new sensors in the form of battery-free devices without any change to the existing infrastructure. This is achieved by transmitting the sensor readings in the battery-free nodes to nearby nodes using backscatter transmissions that are compatible with the pre-deployed radios and by exploiting an unmodulated carrier generated by the existing nodes. Second, I will discuss the first receiver that is compatible with commodity sensor network radio transmitters while maintaining a power consumption comparable to backscatter transmitters. Our receiver relies on an external unmodulated carrier like backscatter transmitters and it avoids the high cost of demodulating phase-modulated signals by treating them as frequency-modulated ones. Finally, I present our work on extending the Cooja sensor network simulator to support backscatter devices in conjunction with commodity sensor nodes. This is a first step towards the development of medium access control protocols tailored to the interoperation of battery-free sensor nodes with commodity sensor nodes.

Applied Optimisation Arena Seminar
Thursday 22 Mar
André Grce, Netonomics: Optimizing Transmission Investment
Location: ITC 1245, Time: 13:15

A seminar within the Applied Optimisation Research Arena

André Grce of Netonomics will give a seminar "Optimizing transmission investment"

Abstract: Transmission links including digging of fiber is often half of a mobile operator’s network investment. Optimal design of link layout needs to accomodate both advanced technology rules and practical obstacles. Multi-level optimization and relatively advanced data handling affects network quality and cost. Netonomics' seminar will outline optimization approaches and methods with high positive impact.

Equal Opportunities Group - Monthly Meeting
Thursday 22 Mar
Equal Opportunities Group: A Better Gender Situation of Technical and Administrative (TA) Personnel
Location: ITC 4307, Time: 13:30-14:30

ON THE AGENDA: Applications + A Better Gender Situation of Technical and Administrative (TA) Personnel (section 3.1 in the action plan)

ASSEMBLE Project Seminar
Thursday 22 Mar
Magnus Lindhé, Electrolux: Building a Robotic Vacuum Cleaner - and then 30,000 more...
Location: ITC 2446, Time: 9:00-10:00

Abstract: Electrolux recently launched the Pure i9 robotic vacuum cleaner, which uses a novel 3D laser scanner to avoid obstacles and do Simultaneous Localization and Mapping (SLAM). This talk will describe the sensor and the core algorithms used for SLAM, obstacle avoidance, path planning and cleaning patterns. Its ends by a summary of important lessons learned during the project and some brief speculation about the future of robotic vacuum cleaners.

Biography: Magnus got a MSc in electrical engineering from KTH in 2004 and a PhD in automatic control in 2012. His thesis was called "Communication-Aware Motion Planning for Mobile Robots". He has also worked as a technical officer in the Swedish Armed Forces, and was co-founder of Activio AB, which develops heart rate feedback systems for physical training. Since 2012, Magnus works at Electrolux, developing navigation software for robotic vacuum cleaners.

This talk is given as a part of the ASSEMBLE project workshop.

Thomas Schön

Docentföreläsning / Docent Lecture
5 April
Mohammad Obaid: Human-Robot Interaction: Approaches to Designing Social Robots
Location: ITC 2446, Time: 10:15

Institutionen för informationsteknologi, avdelningen för visuell information och interaktion, inbjuder härmed alla intresserade till docentföreläsning i ämnet datavetenskap med inriktning mot människa-datorinteraktion.

Föreläsare: Mohammad Obaid
Titel: ”Human-Robot Interaction: Approaches to Designing Social Robots”
Datum: Torsdag 5 april 2018, kl. 10.15
Plats: ITC/2446
Ordförande: Professor Anders Arweström Jansson
Docenturnämndens representant: Professor Carolina Wählby

Föreläsningen ges på engelska / The lecture will be given in English.

Abstract: Human-Robot Interaction (HRI) is a growing field that encompasses several areas related to the sciences of robots and human social interactions. HRI aims to study the design, development, and evaluation of interactive robotic systems. One of the predominant areas of HRI focuses on Social Robots that can engage with human users in a useful, socially acceptable, and enjoyable way. To this end, several Interaction Design approaches are applied to investigate how to develop a seamless human-robot interaction and how to assess its applicability in real world contexts. Thus, this lecture will first present the scope and definition/s of the HRI field within the domain of Human-Computer Interaction. Then it will probe into describing several Interaction Design approaches used in the design and development of Social Robots, in particular focusing on user-centered methods. Thereafter, the lecture will end with several case studies on the design of Social Robots in application areas such as entertainment and health.

Föreläsningen, som är ett lärarprov för den som ansökt om att bli antagen som docent, ska kunna följas av studenter och andra med kunskaper på grundutbildningsnivå inom ämnet, men kan även vara av intresse för en bredare publik. Föreläsningen varar 45 minuter med efterföljande frågestund och diskussion och kommer att ges på engelska.


Disputation / Dissertation
10 April
Jonatan Lindén: Synchronization Techniques in Parallel Discrete Event Simulation
Location: ITC 2446, Time: 13:15

Jonatan Lindén will will present and defend his PhD thesis. The opponent will be Professor Christopher D. Carothers, Rensselaer Polytechnic Institute, Department of Computer Science. Bengt Jonsson has been Jonatan's supervisor.

DiVA includes abstract and full text.

Equal Opportunities Group - Monthly Meeting
3 May
Equal Opportunities Group: Gender Equality Aware Education
Location: ITC 4307, Time: 13:30-14:30

ON THE AGENDA: Gender Equality Aware Education that Creates a Better Learning Environment for All (section 3.2 in the action plan)

Equal Opportunities Group - Monthly Meeting
24 May
Equal Opportunities GroupLocation: ITC 4307, Time: 13:30-15:30

ON THE AGENDA: Applications

Equal Opportunities Group - Monthly Meeting
Equal Opportunities Group: A Better PhD Student Education for All
Location: ITC 4307, Time: 13:30-15:30

ON THE AGENDA: Applications + A Better PhD Student Education for all (section 3.3 in the action plan)

Equal Opportunities Group - Monthly Meeting
Equal Opportunities Group: Supporting Women in Post Doc-, Associate Senior Lecturers- or Senior Lecturers Positions
Location: ITC 4307, Time: 13:30-15:30

ON THE AGENDA: Applications + Supporting Women in Post Doc-, Associate Senior Lecturers- or Senior Lecturers Positions (section 3.4 in the action plan)

Equal Opportunities Group - Monthly Meeting
Equal Opportunities Group: TBA
Location: ITC 4307, Time: 13:30-14:30


See also the list of all upcoming seminars.

Internal seminars. Lecturers may be either internal or external.