IMPLEMENTASI DAN PENGUJIAN SISTEM
4.2. Pengujian Sistem
Setelah implementasi sistem selesai, maka tahap selanjutnya yang akan dilakukan adalah pengujian sistem. Hal ini dilakukan untuk mengetahui apakah sistem berjalan sesuai dengan rancangan sebelumnya.
4.2.1.Pengujian Sistem Tahap Crawling
Pengujian yang dilakukan adalah proses crawling. Proses crawling dilakukan secara online. Data jurnal yang ada pada sebuah halaman website, akan diunduhdan akan masuk secara otomatis ke dalam database tabel_konten. Tabel_konten memiliki 6field yaitu id_konten, url, konten_html, konten_teks dan kategori. Dapat dilihat pada Gambar 4.8.
Gambar 4.8 Database Tabel_Konten
4.2.2.Hasil pengujian proses stemming
Pada Gambar 4.9 kata yang sudah di stemming, ditentukan jumlah bobot per kata. Contohnya, jika ada kata yang sama pada satu jurnal tersebut, maka bobot stemnyaadalah jumlah dari kata yang sama.
4.2.3.Hasil pengujian bobot dan normalisasi
Hasil dari pengujian ini akan didapatkan bobot dari kata yang sudah mengalami proses stemming seperti pada Gambar 4.10.
Gambar 4.10 Hasil Pengujian Bobot dan Normalisasi
4.2.4.Hasil pengujian nilai relevansi
Hasil dari pengujian ini, akan didapatkan nilai relevansi. Hal ini membuktikan bahwa jurnal yang dibandingkan akan berhubungan (Gambar 4.11). Sehingga dalam melakukan proses pencarian jurnal, dapat dilihat bahwa jurnal yang dicari memiliki relevansi dengan jurnal yang lainnya (Gambar 4.12).
Gambar 4.11 Hasil Pengujian Nilai Relevansi
Pada Gambar 4.11 diketahui bahwa, id_topik satu (jurnal nomor satu) dibandingkan dengan seluruh jurnal yang ada pada database. Contohnya, jurnal dengan id_topik 1dengan id_page 10. Hasil dari pengujiannya yaitu, kedua jurnal tersebut memiliki nilai relevansi sebesar 0.030952380952381.
4.2.5.Hasil pengujian pencarian
Tabel 4.1 Tabel Perbandingan Jurnal
No 1 10
Judul Jurnal
Comparison of intratumoral FDG and Cu- ATSM distributions in cancer tissue originated spheroid (CTOS) xenografts, a tumor model retaining the original tumor properties
In Vivo Detection of Hyperoxia- Induced Pulmonary Endothelial Cell Death Using 99mTc-Duramycin
Konten The intratumoral distributions of [18F]FDG and [64Cu]Cu-ATSM have been reported to be similar in adenocarcinomas but different in squamous cell carcinoma (SCC) in clinical studies. In the present study, we compared the intratumoral distributions of these two tracers in cancer tissue originated spheroid(CTOS)
Introduction 99mTc-duramycin, DU, is a SPECT biomarker of tissue injury identifying cell death. The objective of this study is to investigate the potential of DU imaging to quantify capillary endothelial cell death in rat lung injury resulting from hyperoxia exposure as a
Tabel 4.1 Tabel Perbandingan Jurnal (lanjutan)
No 1 10
Konten xenografts derived from adenocarcinoma and
SCC, which retain the histological
characteristics of the original tumors, and in cancer cell line xenografts of corresponding
origin, to investigate the underlying
mechanism of the distinct FDG and Cu-ATSM distribution patterns in adenocarcinoma and SCC. Methods CTOSs derived from colon adenocarcinoma and lung SCC and cell lines established from colon adenocarcinoma and lung SCC, which were used for comparison,
were subcutaneously transplanted into
immunodeficient mice. One hour after administering [14C]FDG and [64Cu]Cu-
ATSM, the intratumoral distributions
werecompared in the xenografts by using dual-tracer autoradiography. Adjacent sections were evaluated for necrosis, vasculature anatomy, Ki-67 antigen, and pimonidazole adducts using hematoxylin and eosin and immunohistochemical staining. Results There was a higher regional overlap of high FDG and Cu- ATSM accumulations in the adenocarcinoma CTOS xenografts than in the SCC CTOS xenografts, while the overlap in the adenocarcinoma cell line xenograft was lower than that observed in the SCC cell line. High FDG accumulation occurred primarily in proximity to necrotic or pimonidazole adduct positive regions,
model of acute lung injury. Methods Rats were exposed to room air (normoxic) or >98% O2 for 48 or 60hours. DU was injected i.v. in anesthetized rats, scintigraphy images were acquired at steady-state, and lung DU uptake was quantified from the images. Post-mortem, the lungs were
removed for histological studies.
Sequential lung sections were
immunostained for caspase activation and endothelial and epithelial cells. Results Lung DU uptake increased significantly (p <0.001) by 39% and 146% in 48-hr and 60-hr exposed
rats, respectively, compared to
normoxic rats. There was strong correlation (r2 =0.82, p =0.005)between lung DU uptake and the number of cleaved caspase 3 (CC3) positive cells, and endothelial cells accounted for more than 50% of CC3 positive cells in the hyperoxic lungs. Histology revealed preserved lung morphology through 48hours. By 60hours there was evidence of edema, and modest neutrophilic infiltrate. Conclusions Rat lung DU uptake in vivo increased after just 48hours of >98% O2 exposure, prior to the onset of any substantial evidence
while high Cu-ATSM accumulation
Tabel 4.1 Tabel Perbandingan Jurnal (lanjutan)
No 1 10
Konten occurred primarily in live cell regions separate from the necrotic regions. The adenocarcinoma CTOS xenograft had the stereotypical glandular structure, resulting in more intricately mixed regions of live and necrotic cells compared to those observed in the SCC CTOS or the cell line xenografts. Conclusion Tumor morphological characteristics, specifically the spatial distribution of live and necrotic cell regions, appeared to be one of the most critical factors determining the regional overlap of FDG and Cu-ATSM distributions in adenocarcinoma.
of lung injury. These results suggest that apoptotic endothelial cells are the primary contributors to the enhanced DU lung uptake, and support the utility of DU imaging for detecting early endothelial cell death in vivo.
Keyword yang sama
cell=9 studi=2 lung=2 Cell=8 studi=2 lung=12
Relevansi 0.030952380952381
Tabel 4.1 merupakan perbandingan antara jurnal id_topik 1 dengan jurnal id_page 10. Kedua jurnal tersebut memiliki keyword yang sama yaitu „cell‟, „studi‟, „lung‟. Untuk membuktikan bahwa jurnal tersebut saling berhungan (memiliki relevansi), dapat dilihat pada Gambar 4.12 dan Gambar 4.13.
Gambar 4.12 Hasil Pengujian Pencarian Jurnal (1)
Pada Gambar 4.13, jika kita memasukkan keyword „comparison of intratumoral‟ maka outputnya adalah judul jurnal yang berhubungan dengan kata keyword tersebut. Jika dipilih judul jurnal seperti gambar 4.13, maka tampilannya seperti Gambar 4.14.
Selanjutnya, pada Gambar 4.13, dapat dilihat isi konten dari judul jurnal yang sudah dipilih tadi. Judul yang terdapat di bawah konten tersebut adalah judul jurnal yang memiliki nilai relevansi terdekat. Relevensi yang ditampilkan adalah jurnal yang memiliki nilai relevansi 5 tertinggi.
Dari hasil pengujian di atas, telah terbukti bahwa jurnal nomor satu memiliki nilai relevansi dengan jurnal nomor 10.
BAB 5
