Gene Tree Labeling Using Nonnegative Matrix Factorization on Biomedical Literature

Table 3

Feature matrix 𝑊 for the sample collection.

	f1	f2	f3	f4
Alcoholism	0.0006	0.3503	—	—
Anxiety	—	—	0.4454	—
Attack	—	—	0.4913	—
Autism	—	0.0030	—	0.8563
Birth	—	0.1111	0.0651	0.2730
Blood	0.0917	0.0538	0.3143	—
Bone	0.5220	—	0.0064	—
Cancer	0.1974	0.1906	—	—
Cells	0.1962	—	0.0188	—
Children	—	0.0019	—	0.5409
Cirrhosis	0.0015	0.5328	—	—
Damage	0.2846	—	—	—
Defects	—	0.0662	—	0.4161
Failure	0.0013	0.2988	—	—
Hypertension	—	0.1454	0.1106	—
Kidney	0.0013	0.2988	—	—
Leukemia	0.4513	—	—	—
Liver	0.0009	0.3366	—	—
Marrow	0.5220	—	0.0064	—
Pressure	—	0.066	0.6376	—
Scarring	—	0.208	—	—
Speech	—	—	—	0.4238
Stress	—	—	0.6655	—
Tuberculosis	0.1962	—	0.0188	—