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RPO-PDT: Demonstrating Role-Play-Based Knowledge Adaptation for Student Support Dialogue (Demonstration System)
arXiv:2606.09255v1 Announce Type: new Abstract: We present RPO-PDT: a retrieval-grounded, role-play-based dialogue system for adaptive student support in higher education. RPO-PDT is: (1) able to provide institution-specific Personal Development Tutor (PDT) guidance using structured knowledge sources; (2) constrained by explicit persona, boundary, confidentiality, and safety policies; and (3) designed around a reverse-roleplay loop where unresolved interactions are replayed from the student...
We're upping our Palo Alto price target after strong earnings vanquish AI disruption fears
Palo Alto Networks reported a strong beat-and-raise quarter Tuesday night, putting to rest any lingering doubt that it will be disrupted by artificial intelligence. The stock was volatile in after-hours trading, but considering its blistering rally into earnings, it's not surprising to see this kind of reaction. Revenue for the company's fiscal 2026 third quarter increased 31% year over year to $3 billion, exceeding the Wall Street consensus estimate of $2.94 billion, according to LSEG.
Value-Free Policy Optimization via Reward Partitioning
arXiv:2506.13702v4 Announce Type: replace Abstract: Single-trajectory preference optimization methods learn from datasets of ((prompt, response, reward)) tuples, offering a practical alternative to pairwise preference learning by directly leveraging scalar feedback. Existing approaches such as Direct Reward Optimization (DRO) have demonstrated promising results but rely on value function estimation, introducing additional variance, optimization complexity, and sensitivity to off-policy data....
Ranking college football's top 100 newcomers for t...
If the upcoming 2026 college football season is anything like its predecessor, transfer quarterbacks and top freshmen will be crucial for many College Football Playoff runs. And by now, with less than 100 days until the start of the season, we can assess rosters and what players did during spring practice with their new teams. While we have analyzed the top newcomer for each Power 4 team, these rankings are regardless of teams.
Barnwell on the much anticipated A.J. Brown trade:...
Before the Rams decided to throw the NFL news cycle into overdrive by trading for a future Hall of Famer in Myles Garrett, there was another trade that was supposed to dominate June 1. And after months of waiting, the Eagles and Patriots finally consummated their long-rumored deal, with wide receiver A.J. Brown heading to New England to join Drake Maye's offense. The Eagles pick up a 2028 first-round pick in return for their star wideout, with an additional 2027 fifth-rounder heading to...