Human immunodeficiency virus (HIV) antibody avidity testing to identify recent infection in newly diagnosed HIV type 1 (HIV-1)-seropositive persons infected with diverse HIV-1 subtypes.
Chawla, A
Murphy, G
Donnelly, C
Booth, C
Johnson, M
Parry, J
Phillips, A
Geretti, A
Journal of clinical microbiology
volume 45
issue 2
415-420
(06 Feb 2007)
"A symphony must be like the world. It must embrace everything."
Probably the most famous quote attributed to Gustav Mahler and when you listen to some of his works it feels like he is changing direction every few notes with the vicissitudes of life. But amid the turmoil he wrote some of the most beautiful romantic music you'll hear. Here Juanjo Mena conducts the BBC Philharmonic.
The ACM-W Chairs
Rendering History: The Women of ACM-W
91-136
(08 Apr 2024)
S-algebra in Gauge Theory: Twistor, Spacetime and Holographic Perspectives
Kmec, A
Mason, L
Ruzziconi, R
Sharma, A
(02 Jun 2025)
A homogenised model for dispersive transport and sorption in a heterogeneous porous medium
Auton, L
Dalwadi, M
Griffiths, I
SIAM Journal on Applied Mathematics
volume 85
issue 5
2026-2054
(17 Sep 2025)
Fri, 06 Jun 2025
13:00
13:00
L5
Topologically good cover from gradient descent
Uzu Lim
(Queen Mary University London)
Note: we would recommend to join the meeting using the Teams client for best user experience.
Abstract
The cover of a dataset is a fundamental concept in computational geometry and topology. In TDA (topological data analysis), it is especially used in computing persistent homology and data visualisation using Mapper. However only rudimentary methods have been used to compute a cover. In this talk, we formulate the cover computation problem as a general optimisation problem with a well-defined loss function, and use gradient descent to solve it. The resulting algorithm, ShapeDiscover, substantially improves quality of topological inference and data visualisation. We also show some preliminary applications in scRNA-seq transcriptomics and the topology of grid cells in the rats' brain. This is a joint work with Luis Scoccola and Heather Harrington.
In Which Areas of Technical AI Safety Could Geopolitical Rivals Cooperate?
Bucknall, B
Siddiqui, S
Thurnherr, L
McGurk, C
Harack, B
Reuel, A
Paskov, P
Mahoney, C
Mindermann, S
Singer, S
Hiremath, V
Segerie, C
Delaney, O
Abate, A
Barez, F
Cohen, M
Torr, P
Huszár, F
Calinescu, A
Jones, G
Trager, R
RTSMS: randomized Tucker with single-mode sketching
Hashemi, B
Nakatsukasa, Y
Electronic Transactions on Numerical Analysis
volume 63
247-280
(11 Jul 2025)
We hold a weekly seminar series during Michaelmas Term where we invite speakers from the financial industry to give presentations to our MSc class. Examples of companies in 2022 include: Nomura, Citadel Securities, NatWest Markets, J.P. Morgan, Qube Research & Technologies, and Deutsche Bank. Many of the companies also hold networking events for our MSc class, which is a good opportunity for students to discuss job and internship opportunities in finance.