Then, we apply a meta-algorithm, based on a metric labeling formulation of the problem, that alters a given n-ary classifier's output in an explicit attempt to ensure that similar items receive similar labels.
But this is not possible in the standard multi-label formulation because it is transductive the labels are fixed during the training phase, and predictions on new labels are not possible.
By contrast, the token-based formulation based on the CRF model is capable of identifying these section headings in one step, because the sequential labeling formulation can model the dependency between tokens.
Comparative biodistribution study in rats using 99mTc labeled formulations revealed higher blood concentration and lower liver concentration of PES DOX PUL, confirming the long circulating nature of PES DOX PUL, and thereby the possibility of improved targeting to hepatocytes.
The labeled formulations, thus obtained, were stored in sterile shielded vials for subsequent studies.
Tumour bearing mice were administered 100 μL (3.7 MBq) of 99mTc labeled formulations, respectively, through the tail vein(i.v).v
The relative tumour uptake of the 99mTc labeled formulations compared to the contra-lateral normal muscle (tumour:muscle ratio) in balb/c mice is shown in Figure 7.
The tumour bearing mice were administered 100 μl (3.7MBq) of 99mTc labeled formulations, respectively (i.v ., through the tail vein and gamma imaging was performed at different time intervals using a planar gamma camera equipped with a collimator.
The samples were then centrifuged at 400 g and the serum was filtered through a 0.22 μm filter into sterile plastic culture tubes. 100 μL of 99mTc labeled formulations were incubated respectively in 900 μL of this serum (in duplicate) at 37°C and analyzed to check for any dissociation of the complex by ITLC using silica gel strips and 0.9% NaCl aqueous solution (saline) as developing solvent.
Ideally, kit-based synthesis of such tracers could make use of a chelator that coordinates 68Ga3+ rapidly (<2 min) at ambient temperature to minimise synthesis time and simplify labelling and formulation procedures.
The method can be interpreted as a generalization of the transductive multi-label learning formulation.
