Table 1 The most probable words and quoted example in the topics of latent Dirichlet allocation
From: Text mining for identifying the nature of online questions about non-suicidal self-injury
Topic number | Label | Words |
|---|---|---|
T1 | anger | anger, parent, hit, head, body, irritation, hand, suppress, punch, behavior, strike, strong, resolve, psychopathy, neck |
When I’m angry, I slap myself very hard and punch myself in the head. If I express anger, my parents will scold me. Hitting myself seems to harm no one, so I keep doing it. Should I get counseling? (2505) | ||
T2 | family troubles | mother, father, eat, home, be hit, cry, swearing, fight, younger brother/sister, go out, alcohol, family, older sister, money, buy |
I think the reason I first started hurting myself was because of my mother, who is addicted to gambling, and my father, who is usually caring but used to wield violence whenever he drank. When I entered middle school, my mom gambled away the money I needed to buy my school uniform. My home was a mess that day. I wondered why I was born home like this. (2194) | ||
T3 | collecting information on NSSI | cut, knife, blood, wrist, dorsum of hand, bleed, nail, tear, deep, finger, mechanical pencil, discharge, hand, first time, swell |
I love the barcode of the red lines listed under the wrist. I feel the scars on the upper arm are beautiful. It’s become a daily life now. Why am I doing this? It’s not that I don’t have hobbies. However, they can’t replace. (834) | ||
T4 | stress | stress, severe, feeling, problem, study, terrible, relieve, sensation, family, girl student, big, anxiety, feel heavy, solution, word |
Whenever I’m stressed, I hurt myself. Especially when it’s like a stressful exam period. I know I shouldn’t harm myself, but I relieve my stress so well that I can’t stop it. (777) | ||
T5 | concerns regarding NSSI scarring | scar, wound, remain, cover, arise, part, photograph, apply, bandaid, regret, heal, remove, ointment, stick, disappear |
I’m so concerned about the scar. Even in winter, I wear short-sleeved clothes, but now I have no choice. I apply ointment regularly, but it doesn’t disappear immediately. I’m so scared that I’ll get caught. (1549) | ||
T6 | how to help a self-injurious friend | friend, school, counsel, teacher, talk, attend, time, cry, boyfriend, console, close, laugh, meet, live, play |
I saw my friend’s scar. After that, I went around looking at all my friends’ wrists, and there was another friend who was hurting herself. I want to comfort and help my friends, but my friends feel burdened by me. Can I tell teacher or counselor? What should I do? (2278) | ||
T7 | depression | hard, die, depression, help, suicide, mind, impulse, okay, sad, try, emotion, do not know, mental hospital, comfort, mentality |
I was very negative and depressed for a long time. But I’ve never felt this big before. I keep hurting myself because I feel like I’m going to die. I want to kill myself, but I’m scared. I hope someone tells me to die. Please... Then there’s a reason to die. (862) | ||
T8 | medical advice | arm, method, appear, hospital, wrist, mental, scratch, treatment, stop, medicine, condition, mark, addiction, wear, left |
There are about four marks on the left arm and wrist, but I want to treat them neatly. Which hospital can I treat it at? I’m studying a major in a field that shouldn’t have scars, so I need treatment. (2259) | ||
T9 | how to perform or stop NSSI | pain, do not know, begin, inform, first time, rise up, woman, reveal, stop, method, treat, interest, long, ask, concern |
Is there any part where you can reduce pain and see wounds and blood when you hurt yourself? (3648) It hasn’t been long since I started, but I end up doing it even if I don’t want. Can you tell me how to stop? (3460) | ||
T10 | prejudices and thought about self-injurious people | thought, people, live, hate, inferior, feel, reason, mad, alone, bad, do not know, mind, near, suffering, love |
Self-harm is bad, but people who harm themselves are not bad. It’s pitiful. It’s not dirty. I’m not crazy. (1513) | ||