16 citations · 48 across the 23 of their papers we have counts for
28 papers
Ranking by points and ordinal models
Leszek Szczecinski
Sport leagues assign a fixed score-point to each match outcome and rank the players (or teams) by their accumulated scores. Since the score-points are mandated without a probabilis…
Low-rank MMSE filters, Kronecker-product representation, and regularization: a new perspective
Daniel Gomes de Pinho Zanco, Leszek Szczecinski, Jacob Benesty +1
In this work, we propose a method to efficiently find the regularization parameter for low-rank MMSE filters based on a Kronecker-product representation. We show that the regulariz…
A Unified Bayesian Perspective for Conventional and Robust Adaptive Filters
Leszek Szczecinski, Jacob Benesty, Eduardo Vinicius Kuhn
In this work, we present a new perspective on the origin and interpretation of adaptive filters. By applying Bayesian principles of recursive inference from the state-space model a…
FIVB ranking: Misstep in the right direction
Salma Tenni, Daniel Gomes de Pinho Zanco, Leszek Szczecinski
This work presents and evaluates the ranking algorithm that has been used by Federation Internationale de Volleyball (FIVB) since 2020. The prominent feature of the FIVB ranking is…
Automatic Regularization for Linear MMSE Filters
Daniel Gomes de Pinho Zanco, Leszek Szczecinski, Jacob Benesty
In this work, we consider the problem of regularization in the design of minimum mean square error (MMSE) linear filters. Using the relationship with statistical machine learning m…
Why winning a soccer game is worth 5 points
Leszek Szczecinski
Ranking is used in sport leagues to determine a champion and/or to decide on promotion/relegation of teams. Arguably, the best known ranking method relies on scores obtained by cum…
Stochastic analysis of the Elo rating algorithm in round-robin tournaments
Daniel Gomes de Pinho Zanco, Leszek Szczecinski, Eduardo Vinicius Kuhn +1
The Elo algorithm, renowned for its simplicity, is widely used for rating in sports tournaments and other applications. However, despite its widespread use, a detailed understandin…
Rankability and Linear Ordering Problem: New Probabilistic Insight and Algorithms
Leszek Szczecinski, Harsh Sukheja
The linear ordering problem (LOP), which consists in ordering M objects from their pairwise comparisons, is commonly applied in many areas of research. While efforts have been made…
FIFA ranking: Evaluation and path forward
Leszek Szczecinski, Iris-Ioana Roatis
In this work we study the ranking algorithm used by Fédération Internationale de Football Association (FIFA); we analyze the parameters it currently uses, show the formal probabili…
Simplified Kalman filter for online rating: one-fits-all approach
Leszek Szczecinski, Raphaëlle Tihon
In this work, we deal with the problem of rating in sports, where the skills of the players/teams are inferred from the observed outcomes of the games. Our focus is on the online r…
G-Elo: Generalization of the Elo algorithm by modelling the discretized margin of victory
Leszek Szczecinski
In this work we develop a new algorithm for rating of teams (or players) in one-on-one games by exploiting the observed difference of the game-points (such as goals), also known as…
Parametric Phase Tracking via Expectation Propagation
Leszek Szczecinski, Hsan Bouazizi, Ahikam Aharony
In this work we propose simple algorithms for signal detection in a single-carrier transmission corrupted by a strong phase noise. The proposed phase tracking algorithms are formul…
Bilinear Models for Machine Learning
Tayssir Doghri, Leszek Szczecinski, Jacob Benesty +1
In this work we define and analyze the bilinear models which replace the conventional linear operation used in many building blocks of machine learning (ML). The main idea is to de…
Understanding and Pushing the Limits of the Elo Rating Algorithm
Leszek Szczecinski, Aymen Djebbi
This work is concerned with the rating of players/teams in face-to-face games with three possible outcomes: loss, win, and draw. This is one of the fundamental problems in sport an…
AMC and HARQ: How to Increase the Throughput
Mohammed Jabi, Leszek Szczecinski, Mustapha Benjillali +2
In this work, we consider transmissions over block fading channels and assume that adaptive modulation and coding (AMC) and hybrid automatic repeat request (HARQ) are implemented.…
Rate Adaptation for Secure HARQ Protocols
Maël Le Treust, Leszek Szczecinski, Fabrice Labeau
This paper investigates the incremental-redundancy hybrid-automatic repeat request (IR-HARQ) transmission over independent block-fading channels in the presence of an eavesdropper,…
How to Boost the Throughput of HARQ with Off-the-Shelf Codes
Mohammed Jabi, Etienne Pierre-Doray, Leszek Szczecinski +1
In this work, we propose a coding strategy designed to enhance the throughput of hybrid ARQ (HARQ) transmissions over i.i.d. block-fading channels with the channel state informatio…
Adaptive Cross-Packet HARQ
Mohammed Jabi, Abdellatif Benyouss, Mael Le Treust +2
In this work, we investigate a coding strategy devised to increase the throughput in hybrid ARQ (HARQ) transmission over block fading channel. In our approach, the transmitter join…
HARQ and AMC: Friends or Foes?
Redouane Sassioui, Mohammed Jabi, Leszek Szczecinski +3
To ensure reliable communication in randomly varying and error-prone channels, wireless systems use adaptive modulation and coding (AMC) as well as hybrid ARQ (HARQ). In order to e…
Modelling Decoding Errors in HARQ
Redouane Sassioui, Etienne Pierre-Doray, Leszek Szczecinski +1
In this work we address the issues of probabilistic modelling of the decoding errors in hybrid ARQ (HARQ) rounds. In particular we i) claim that the assumption of independence of d…
Multi-packet Hybrid ARQ: Closing gap to the ergodic capacity
Mohammed Jabi, Aata El Hamss, Leszek Szczecinski +1
In this work we consider incremental redundancy (IR) hybrid automatic repeat request (HARQ), where transmission rounds are carried out over independent block-fading channels. We pr…
Opportunistic Relaying without CSI: Optimizing Variable-Rate HARQ
Saeed R. Khosravirad, Leszek Szczecinski, Fabrice Labeau
We analyze the opportunistic relaying based on HARQ transmission over the block-fading channel with absence of channel state information (CSI) at the transmitter nodes. We assume t…
Outage Minimization via Power Adaptation and Allocation for Truncated Hybrid ARQ
Mohammed Jabi, Leszek Szczecinski, Mustapha Benjillali +1
In this work, we analyze hybrid ARQ (HARQ) protocols over the independent block fading channel. We assume that the transmitter is unaware of the channel state information (CSI) but…
Resource Allocation for Downlink Channel Transmission Based on Superposition Coding
Redouane Sassioui, Aata El Hamss, Leszek Szczecinski +1
We analyze the problem of transmitting information to multiple users over a shared wireless channel. The problem of resource allocation (RA) for the users with the knowledge of the…