Most research on pseudo relevance feedback (PRF) has been done in vector space and probabilistic retrieval models. This paper shows that Transformer-based rerankers can also benefit from the extra context PRF provides. It presents PGT, a graph-based Transformer sparsifies attention between graph nodes to enable while avoiding high computational complexity of most architectures. Experiments show...

$\ensuremath{-}1$ programmed ribosomal frameshifting ($\ensuremath{-}1\text{ }\text{ }\mathrm{PRF}$) is stimulated by structures in messenger RNA (mRNA), but the factors determining $\ensuremath{-}1\text{ }\mathrm{PRF}$ efficiency are unclear. We show that varies directly with conformational heterogeneity of stimulatory structure, quantified as Shannon entropy state occupancy, for a panel effic...

We show a hardness-preserving construction of a PRF from any length doubling PRG which improves upon known constructions whenever we can put a non-trivial upper bound q on the number of queries to the PRF. Our construction requires only O(log q) invocations to the underlying PRG with each query. In comparison, the number of invocations by the best previous hardness-preserving construction (GGM ...

The distribution of genetic polymorphisms in a population contains information about the mutation rate and the strength of natural selection at a locus. Here, we show that the Poisson Random Field (PRF) method of population-genetic inference suffers from systematic biases that tend to underestimate selection pressures and mutation rates, and that erroneously infer positive selection. These prob...

Previous work has shown that pseudo relevance feedback (PRF) can be effective for cross-lingual information retrieval (CLIR). This research was primarily based on corpora such as news articles that are written using relatively formal language. In this paper, we revisit the problem of CLIR with a focus on the problems that arise with informal text, such as blogs and forums. To address the proble...

Conventional cryptographic services such as hardware-security modules and software-based keymanagement systems offer the ability to apply a pseudorandom function (PRF) such as HMAC to inputs of a client’s choosing. These services are used, for example, to harden stored password hashes against offline brute-force attacks. We propose a modern PRF service called PYTHIA designed to offer a level of...

Assume for the sake of contradiction that these distributions are distinguishable by some distinguisher A. Define a PPT B which distinguishes G from random as follows. On input y ∈ {0, 1} (which is either G(s) or random), we sample x ← {0, 1} and run A on F (y, x). If A guesses D0, then B returns “pseudorandom”; else, B returns “random.” B has the same probability of success as A. If y was rand...

OBJECTIVE To investigate the comparative treatment effects of ultrasound-guided pulsed radiofrequency treatment (UG-PRF) in the gastrocnemius interfascial space and ultrasound-guided interfascial injection (UG-INJ) on myofascial pain syndrome. METHODS Forty consecutive patients with myofascial pain syndrome of the gastrocnemius were enrolled and were allocated to one of the two groups. Twenty...

In vivo microdialysis in C57BL/6J (B6) mouse was used to test the hypothesis that activating adenosine A(2A) receptors in the pontine reticular formation (PRF) increases acetylcholine (ACh) release and rapid eye movement (REM) sleep. Eight concentrations of the adenosine A(2A) receptor agonist 2-p-(2-carboxyethyl)phenethylamino-5'-N-ethylcarboxamidoadenosine hydrochloride (CGS 21680; CGS) were ...

BACKGROUND In regenerative therapy, self-clotted platelet concentrates, such as platelet-rich fibrin (PRF), are generally prepared on-site and are immediately used for treatment. If blood samples or prepared clots can be preserved for several days, their clinical applicability will expand. Here, we prepared PRF from stored whole-blood samples and examined their characteristics. METHODS Blood ...