{"adoption": {"forks": 3090, "observed_at": "2026-08-28T04:05:40.025092+00:00", "stars": 1816}, "canonical_url": "https://ross.abutalabs.com/products/jyfc-ebook", "card": {"archived": false, "artifact_type": "learning-resource", "description": "classic books of computer science", "domain": ["education", "developer-tools", "tutorials"], "enriched": true, "function": ["documentation", "pdf"], "health_score": 20, "homepage": "http://onestraw.net", "language": null, "license": null, "license_family": "other", "maturity": "maintenance", "member_repos": ["jyfc/ebook"], "name": "jyfc/ebook", "platform": ["cross-platform"], "pushed_at": "2020-10-01T14:33:43+00:00", "repo": "jyfc/ebook", "stars": 1816, "tags": ["ebooks", "computer-science-books", "pdf-collection", "curated-list", "chinese-language"], "topics": [], "urls": [], "use_cases": ["find classic computer science textbooks to read", "download free copies of C and C++ programming books", "get Chinese translations of books like CLRS and K&R", "build a self-study curriculum for programming and algorithms", "find data structures and algorithm analysis books in C"], "what_it_is": "A curated GitHub repository collecting PDF copies of classic computer science books, including titles on C/C++ programming, algorithms, and data structures, many in Chinese translation. It is essentially a reading list of links to hosted PDF files rather than software.", "when_to_avoid": ["you need legally licensed or up-to-date editions of these books", "you want interactive tutorials or courses rather than static PDFs", "you need software or tools rather than reading material"], "when_to_choose": ["you want a curated list of well-known CS textbooks in one place", "you prefer reading Chinese-language editions of classic books", "you want free PDF access to foundational programming and algorithm texts"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/jyfc-ebook", "repo": "jyfc/ebook", "role": "main", "score": 32}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:05:40.025092+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T03:20:36.077444+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "1fee4c5d5fa78900dd04a09babe26676a79bb5e061c766a08e7d1485e2b54c93", "fetched_at": "2026-08-28T04:05:40.025092+00:00", "kind": "readme", "missing": false, "url": "https://github.com/jyfc/ebook"}, {"content_hash": "036dc475eec65096bf45269523a4f985108b05e5e293a5bd77b64e58b6cda76e", "fetched_at": "2026-08-29T10:59:47.100753+00:00", "kind": "homepage", "missing": false, "url": "http://onestraw.net"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_releases", "no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4254, "days_push": 2162, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 32, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}