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Koopman operator learning for predictive control via Khatri-Rao kernel regression
arXiv:2606.02938v1 Announce Type: cross Abstract: This paper develops a data-driven realization of the generalized Koopman operator (GeKo), in which states and inputs are lifted independently and the dynamics are expressed as a tensor bilinear system. The first contribution is a time-sequenced multi-step Khatri-Rao kernel regression formulation that exposes the operator to evolved snapshots along trajectories rather than only single one-step pairs, which reduces compounded prediction error....
Assessing the Variety of a Concept Space Using an Unbiased Estimate of Rao's Quadratic Index
Announce Type: replace Abstract: Past research relates design creativity to 'divergent thinking,' i.e., how well the concept space is explored during the early phase of design. Researchers have argued that generating several concepts would increase the chances of producing better design solutions.
UAV-Enabled Fluid Antenna Systems for Multi-Target Wireless Sensing over LAWCNs
arXiv:2509.22497v2 Announce Type: replace Abstract: Fluid antenna system (FAS) is emerging as a key technology for enhancing spatial flexibility and sensing accuracy in future wireless systems. This paper investigates an unmanned aerial vehicle (UAV)-enabled FAS for multi-target wireless sensing in low-altitude wireless consumer networks (LAWCNs) for achieving the low-altitude economy (LAE) missions. We formulate an optimization problem aimed at minimizing the average Cram\'er-Rao bound...
CRB-Optimal Arrays and Waveforms in Active Sensing: Role of Redundancy and Spatial Covariance of Array Geometry
Announce Type: cross Abstract: This paper characterizes the performance limits of optimal array designs using orthogonal and coherent waveforms for both linear and planar arrays. For orthogonal waveforms, we show that the single-target Cram\'er-Rao Bound (CRB) depends on the sum of the so-called spatial variances of the transmit (Tx) and receive (Rx) arrays, or equivalently, the spatial variance of the sum co-array weighted by the multiplicities of the virtual sensors. This reveals that...
Well-Posed KL-Regularized Control via Wasserstein and Kalman-Wasserstein KL Divergences
arXiv:2602.02250v2 Announce Type: replace-cross Abstract: Kullback-Leibler (KL) divergence regularization is widely used in reinforcement learning, but it becomes infinite under support mismatch and can degenerate in low-noise regimes. Using a unified information-geometric framework, we introduce KL analogs by replacing the Fisher-Rao geometry in the dynamical formulation of the KL with transport-based geometries, and derive closed-form expressions for common distribution families. Between...
Visakhapatnam tragedy: 8 burnt to death as molten metal spills on workers at steel plant
Eight workers were burnt alive, and another six received serious burn injuries in Vizag Steel Plant on Monday evening when the hot metal ladle fell on the ground in Steel Melting Shop (SMS). The ladle had fallen on the ground with a big thud and spread the fire in the area. Workers and plant management are in the process to identify the persons killed in the accident as the bodies are not in a shape to recognise the persons.
8 workers killed, several critical in Vizag Steel Plant accident
Visakhapatnam: At least eight workers were killed and several suffered critical burn injuries after an explosion triggered a massive spill of superheated liquid metal at the Rashtriya Ispat Nigam Limited’s Visakhapatnam Steel Plant in Andhra Pradesh on Monday afternoon. According to preliminary information, a ladle carrying liquid steel at temperatures of around 1,600°C suddenly exploded in the continuous casting department of the plant’s steel melting facility. The explosion caused tonnes...
Don't miss the moon and Saturn put on a spectacular show before sunrise June 10
Don't miss the moon and Saturn put on a spectacular show before sunrise June 10 Early risers on Wednesday morning (June 10) will be able to partake in an interesting rendezvous between the moon and a bright planet. Set your alarm for 3 a.m. and upon heading outside, look due east. Make sure you don't have any tall obstructions, such as trees or buildings, in your way.
Rakhee Gulzar backs Aamir Khan's wedding to Gauri Spratt: 'What is wrong with marrying at 60?'
Aamir Khan's wedding bells are set to ring on July 5, 2026, when he will marry his partner Gauri Spratt. The actor has never hidden his affection for Gauri and confirmed the news himself not too long ago. Now, adding to the celebration, veteran actress Rakhee Gulzar has weighed in on the happy occasion, sharing her warm wishes for the couple ahead of their big day.
AI Has Come for Serif Fonts
As public backlash to the seeming omnipresence of artificial intelligence intensifies, the collective quest to weed out—and reject—telltale signs of its use continues. One of the first casualties, to my dismay, was em dashes—which are a great, and very human form of punctuation, by the way! There's also the “rule of threes,” which is meant to scan as rhythmic, but often comes across predictable, hackish, and stale.